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  • Articles  (377)
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  • American Association for the Advancement of Science (AAAS)  (377)
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  • American Society of Civil Engineers
  • Cambridge University Press
  • International Union of Crystallography
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  • 1
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    Angiopoietin-2, a natural antagonist for Tie2 that disrupts in vivo angiogenesis (1997)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1997-07-04
    Description: Angiogenesis is thought to depend on a precise balance of positive and negative regulation. Angiopoietin-1 (Ang1) is an angiogenic factor that signals through the endothelial cell-specific Tie2 receptor tyrosine kinase. Like vascular endothelial growth factor, Ang1 is essential for normal vascular development in the mouse. An Ang1 relative, termed angiopoietin-2 (Ang2), was identified by homology screening and shown to be a naturally occurring antagonist for Ang1 and Tie2. Transgenic overexpression of Ang2 disrupts blood vessel formation in the mouse embryo. In adult mice and humans, Ang2 is expressed only at sites of vascular remodeling. Natural antagonists for vertebrate receptor tyrosine kinases are atypical; thus, the discovery of a negative regulator acting on Tie2 emphasizes the need for exquisite regulation of this angiogenic receptor system.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Maisonpierre, P C -- Suri, C -- Jones, P F -- Bartunkova, S -- Wiegand, S J -- Radziejewski, C -- Compton, D -- McClain, J -- Aldrich, T H -- Papadopoulos, N -- Daly, T J -- Davis, S -- Sato, T N -- Yancopoulos, G D -- New York, N.Y. -- Science. 1997 Jul 4;277(5322):55-60.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Regeneron Pharmaceuticals Inc., 777 Old Saw Mill River Road, Tarrytown, NY 10591, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/9204896" target="_blank"〉PubMed〈/a〉
    Keywords: Amino Acid Sequence ; Angiopoietin-1 ; Angiopoietin-2 ; Animals ; Blood Vessels/embryology/*metabolism ; Cells, Cultured ; Cloning, Molecular ; Embryo, Mammalian/metabolism ; Endothelial Growth Factors/genetics/metabolism ; Endothelium, Vascular/*cytology/metabolism ; Female ; Humans ; Ligands ; Lymphokines/genetics/metabolism ; Membrane Glycoproteins/antagonists & inhibitors/metabolism ; Mice ; Mice, Transgenic ; Molecular Sequence Data ; *Neovascularization, Physiologic ; Phosphorylation ; Proteins/chemistry/*metabolism ; Rats ; Rats, Sprague-Dawley ; Receptor Protein-Tyrosine Kinases/*antagonists & inhibitors/metabolism ; Receptor, TIE-2 ; Recombinant Fusion Proteins/metabolism ; Signal Transduction ; Vascular Endothelial Growth Factor A ; Vascular Endothelial Growth Factors
    Print ISSN: 0036-8075
    Electronic ISSN: 1095-9203
    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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  • 2
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    Amidation of bioactive peptides: the structure of peptidylglycine alpha-hydroxylating monooxygenase (1997)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1997-11-21
    Description: Many neuropeptides and peptide hormones require amidation at the carboxyl terminus for activity. Peptidylglycine alpha-amidating monooxygenase (PAM) catalyzes the amidation of these diverse physiological regulators. The amino-terminal domain of the bifunctional PAM protein is a peptidylglycine alpha-hydroxylating monooxygenase (PHM) with two coppers that cycle through cupric and cuprous oxidation states. The anomalous signal of the endogenous coppers was used to determine the structure of the catalytic core of oxidized rat PHM with and without bound peptide substrate. These structures strongly suggest that the PHM reaction proceeds via activation of substrate by a copper-bound oxygen species. The mechanistic and structural insight gained from the PHM structures can be directly extended to dopamine beta-monooxygenase.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Prigge, S T -- Kolhekar, A S -- Eipper, B A -- Mains, R E -- Amzel, L M -- DK32949/DK/NIDDK NIH HHS/ -- GM44692/GM/NIGMS NIH HHS/ -- New York, N.Y. -- Science. 1997 Nov 14;278(5341):1300-5.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Biophysics and Biophysical Chemistry, Johns Hopkins School of Medicine, Baltimore, MD 21205, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/9360928" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Binding Sites ; Catalysis ; Copper/chemistry/metabolism ; Crystallography, X-Ray ; Dipeptides/metabolism ; Dopamine beta-Hydroxylase/chemistry/metabolism ; Electrons ; Hydroxylation ; Ligands ; Mixed Function Oxygenases/*chemistry/metabolism ; Models, Molecular ; *Multienzyme Complexes ; Oxidation-Reduction ; Oxygen/metabolism ; Peptides/metabolism ; *Protein Conformation ; Protein Structure, Secondary ; Rats
    Print ISSN: 0036-8075
    Electronic ISSN: 1095-9203
    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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  • 3
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    Gene discovery offers tentative clues to Parkinson's (1997)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1997-06-27
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Vogel, G -- New York, N.Y. -- Science. 1997 Jun 27;276(5321):1973.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/9221499" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Chromosome Mapping ; Chromosomes, Human, Pair 4 ; Genetic Markers ; Humans ; Lewy Bodies/chemistry ; Mice ; Mice, Transgenic ; Nerve Tissue Proteins/analysis/chemistry/*genetics ; Oxidative Stress ; Parkinson Disease/etiology/*genetics ; Point Mutation ; Protein Conformation ; Protein Folding ; Rats ; Synucleins
    Print ISSN: 0036-8075
    Electronic ISSN: 1095-9203
    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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  • 4
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    NGF signals ride a trolley to nucleus (1997)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1997-08-22
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Barinaga, M -- New York, N.Y. -- Science. 1997 Aug 22;277(5329):1037.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/9289850" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; *Axonal Transport ; Axons/*metabolism ; Cell Nucleus/metabolism ; Cells, Cultured ; Cyclic AMP Response Element-Binding Protein/metabolism ; Gene Expression Regulation ; Nerve Growth Factors/*metabolism ; Neurons/*metabolism ; Proto-Oncogene Proteins/metabolism ; Rats ; Receptor Protein-Tyrosine Kinases/metabolism ; Receptor, trkA ; Receptors, Nerve Growth Factor/metabolism ; *Signal Transduction
    Print ISSN: 0036-8075
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    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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  • 5
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    Neurogenesis in postnatal rat spinal cord: a study in primary culture (1997)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1997-04-25
    Description: Spinal cord injuries result in paralysis, because when damaged neurons die they are not replaced. Neurogenesis of electrophysiologically functional neurons occurred in spinal cord cultured from postnatal rats. In these cultures, the numbers of immunocytochemically identified neurons increased over time. Additionally, neurons identified immunocytochemically or electrophysiologically incorporated bromodeoxyuridine, confirming they had differentiated from mitotic cells in vitro. These findings suggest that postnatal spinal cord retains the capacity to generate functional neurons. The presence of neuronal precursor cells in postnatal spinal cord may offer new therapeutic approaches for restoration of function to individuals with spinal cord injuries.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Kehl, L J -- Fairbanks, C A -- Laughlin, T M -- Wilcox, G L -- DA07097/DA/NIDA NIH HHS/ -- DA07234/DA/NIDA NIH HHS/ -- DE00225/DE/NIDCR NIH HHS/ -- etc. -- New York, N.Y. -- Science. 1997 Apr 25;276(5312):586-9.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Graduate Program in Neuroscience, University of Minnesota, Minneapolis, MN 55455, USA. 55455, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/9110976" target="_blank"〉PubMed〈/a〉
    Keywords: Action Potentials ; Animals ; Bromodeoxyuridine/metabolism ; Cell Differentiation ; Cells, Cultured ; Culture Media ; Glial Fibrillary Acidic Protein/analysis ; Immunohistochemistry ; Mitosis ; Neurons/chemistry/*cytology/metabolism ; Phosphopyruvate Hydratase/analysis ; Rats ; Spinal Cord/chemistry/*cytology ; Tubulin/analysis
    Print ISSN: 0036-8075
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    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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  • 6
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    Rat model for Gulf War syndrome? (1997)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1997-12-31
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Wickelgren, I -- New York, N.Y. -- Science. 1997 Nov 21;278(5342):1404.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/9411763" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; *Disease Models, Animal ; Hippocampus/*drug effects/metabolism ; Humans ; Isoflurophate/*toxicity ; Maze Learning/drug effects ; Military Personnel ; Nicotinic Antagonists/toxicity ; Persian Gulf Syndrome/*chemically induced/metabolism ; Rats ; Receptors, Nicotinic/*metabolism
    Print ISSN: 0036-8075
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    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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  • 7
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    Marijuana: harder than thought? (1997)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1997-06-27
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Wickelgren, I -- New York, N.Y. -- Science. 1997 Jun 27;276(5321):1967-8.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/9221496" target="_blank"〉PubMed〈/a〉
    Keywords: Amygdala/drug effects/metabolism ; Animals ; Brain/*drug effects/metabolism ; *Cannabis ; Corticotropin-Releasing Hormone/*metabolism ; Dopamine/*metabolism ; Dronabinol/adverse effects/*pharmacology ; Humans ; Naloxone/pharmacology ; Nucleus Accumbens/drug effects/metabolism ; Rats ; Substance Withdrawal Syndrome/*metabolism ; Substance-Related Disorders/metabolism
    Print ISSN: 0036-8075
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    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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  • 8
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    Regulatory phosphorylation of AMPA-type glutamate receptors by CaM-KII during long-term potentiation (1997)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1997-06-27
    Description: Long-term potentiation (LTP), a cellular model of learning and memory, requires calcium-dependent protein kinases. Induction of LTP increased the phosphorus-32 labeling of alpha-amino-3-hydroxy-5-methyl-4-isoxazolepropionic acid (AMPA)-type glutamate receptors (AMPA-Rs), which mediate rapid excitatory synaptic transmission. This AMPA-R phosphorylation appeared to be catalyzed by Ca2+- and calmodulin-dependent protein kinase II (CaM-KII): (i) it correlated with the activation and autophosphorylation of CaM-KII, (ii) it was blocked by the CaM-KII inhibitor KN-62, and (iii) its phosphorus-32 peptide map was the same as that of GluR1 coexpressed with activated CaM-KII in HEK-293 cells. This covalent modulation of AMPA-Rs in LTP provides a postsynaptic molecular mechanism for synaptic plasticity.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Barria, A -- Muller, D -- Derkach, V -- Griffith, L C -- Soderling, T R -- NS27037/NS/NINDS NIH HHS/ -- R01 GM054408/GM/NIGMS NIH HHS/ -- New York, N.Y. -- Science. 1997 Jun 27;276(5321):2042-5.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Vollum Institute, Oregon Health Sciences University, Portland, OR 97201, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/9197267" target="_blank"〉PubMed〈/a〉
    Keywords: 1-(5-Isoquinolinesulfonyl)-2-Methylpiperazine/analogs & derivatives/pharmacology ; 2-Amino-5-phosphonovalerate/pharmacology ; Animals ; Calcium/metabolism ; Calcium-Calmodulin-Dependent Protein Kinase Type 2 ; Calcium-Calmodulin-Dependent Protein Kinases/antagonists & inhibitors/*metabolism ; Cell Line ; Enzyme Inhibitors/pharmacology ; Excitatory Amino Acid Antagonists/pharmacology ; Hippocampus/*metabolism ; Humans ; In Vitro Techniques ; *Long-Term Potentiation/drug effects ; Male ; Peptide Mapping ; Phosphorylation ; Rats ; Rats, Sprague-Dawley ; Receptors, AMPA/*metabolism ; Synaptic Transmission/drug effects
    Print ISSN: 0036-8075
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    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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  • 9
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    Large porous particles for pulmonary drug delivery (1997)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1997-06-20
    Description: A new type of inhalation aerosol, characterized by particles of small mass density and large size, permitted the highly efficient delivery of inhaled therapeutics into the systemic circulation. Particles with mass densities less than 0.4 gram per cubic centimeter and mean diameters exceeding 5 micrometers were inspired deep into the lungs and escaped the lungs' natural clearance mechanisms until the inhaled particles delivered their therapeutic payload. Inhalation of large porous insulin particles resulted in elevated systemic levels of insulin and suppressed systemic glucose levels for 96 hours, whereas small nonporous insulin particles had this effect for only 4 hours. High systemic bioavailability of testosterone was also achieved by inhalation delivery of porous particles with a mean diameter (20 micrometers) approximately 10 times that of conventional inhaled therapeutic particles.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Edwards, D A -- Hanes, J -- Caponetti, G -- Hrkach, J -- Ben-Jebria, A -- Eskew, M L -- Mintzes, J -- Deaver, D -- Lotan, N -- Langer, R -- GM26698/GM/NIGMS NIH HHS/ -- HD29125/HD/NICHD NIH HHS/ -- New York, N.Y. -- Science. 1997 Jun 20;276(5320):1868-71.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Chemical Engineering, Pennsylvania State University, 204 Fenske Laboratory, University Park, PA 16802, USA. dxe11@psuv.edu〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/9188534" target="_blank"〉PubMed〈/a〉
    Keywords: *Administration, Inhalation ; Aerosols ; Animals ; Biological Availability ; Blood Glucose/analysis ; Bronchoalveolar Lavage ; *Drug Carriers ; Drug Compounding ; Insulin/administration & dosage/blood/pharmacokinetics ; *Lactic Acid ; *Lung ; Male ; Particle Size ; *Polyglycolic Acid ; *Polylysine ; *Polymers ; Rats ; Rats, Sprague-Dawley ; Testosterone/administration & dosage/blood/pharmacokinetics
    Print ISSN: 0036-8075
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    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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  • 10
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    Experiments in a Parkinson's rat model (1997)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1997-07-18
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Pallini, R -- Consales, A -- Lauretti, L -- Fernandez, E -- New York, N.Y. -- Science. 1997 Jul 18;277(5324):389-90.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/9518368" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Dopamine/physiology ; Fluorescent Dyes/*metabolism ; *Genetic Therapy ; Genetic Vectors ; Glial Cell Line-Derived Neurotrophic Factor ; Nerve Degeneration ; Nerve Growth Factors/genetics ; Nerve Tissue Proteins/*genetics ; Neurons/metabolism/pathology ; *Neuroprotective Agents ; Oxidopamine/pharmacology ; Parkinson Disease/pathology/*therapy ; Rats ; *Stilbamidines ; Substantia Nigra/metabolism/*pathology
    Print ISSN: 0036-8075
    Electronic ISSN: 1095-9203
    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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  • 11
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    A neural substrate of prediction and reward (1997)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1997-03-14
    Description: The capacity to predict future events permits a creature to detect, model, and manipulate the causal structure of its interactions with its environment. Behavioral experiments suggest that learning is driven by changes in the expectations about future salient events such as rewards and punishments. Physiological work has recently complemented these studies by identifying dopaminergic neurons in the primate whose fluctuating output apparently signals changes or errors in the predictions of future salient and rewarding events. Taken together, these findings can be understood through quantitative theories of adaptive optimizing control.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Schultz, W -- Dayan, P -- Montague, P R -- New York, N.Y. -- Science. 1997 Mar 14;275(5306):1593-9.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Institute of Physiology, University of Fribourg, CH-1700 Fribourg, Switzerland. Wolfram.Schultz@unifr.ch〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/9054347" target="_blank"〉PubMed〈/a〉
    Keywords: Algorithms ; Animals ; Computer Simulation ; Conditioning (Psychology) ; Cues ; Dopamine/*physiology ; *Learning ; Mesencephalon/*physiology ; *Models, Neurological ; Neurons/*physiology ; Rats ; *Reward
    Print ISSN: 0036-8075
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    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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  • 12
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    Alternative cleavage of Alzheimer-associated presenilins during apoptosis by a caspase-3 family protease (1997)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1997-07-18
    Description: Most cases of early-onset familial Alzheimer's disease (FAD) are caused by mutations in the genes encoding the presenilin 1 (PS1) and PS2 proteins, both of which undergo regulated endoproteolytic processing. During apoptosis, PS1 and PS2 were shown to be cleaved at sites distal to their normal cleavage sites by a caspase-3 family protease. In cells expressing PS2 containing the asparagine-141 FAD mutant, the ratio of alternative to normal PS2 cleavage fragments was increased relative to wild-type PS2-expressing cells, suggesting a potential role for apoptosis-associated cleavage of presenilins in the pathogenesis of Alzheimer's disease.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Kim, T W -- Pettingell, W H -- Jung, Y K -- Kovacs, D M -- Tanzi, R E -- New York, N.Y. -- Science. 1997 Jul 18;277(5324):373-6.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Genetics and Aging Unit, Department of Neurology, Massachusetts General Hospital, Harvard Medical School, Charlestown, MA 02129, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/9219695" target="_blank"〉PubMed〈/a〉
    Keywords: Alzheimer Disease/*genetics/metabolism/pathology ; Amino Acid Chloromethyl Ketones/pharmacology ; Amino Acid Substitution ; Animals ; *Apoptosis ; Caspase 3 ; *Caspases ; Cysteine Endopeptidases/*metabolism ; Cysteine Proteinase Inhibitors/pharmacology ; Enzyme Activation ; Etoposide/pharmacology ; Membrane Proteins/chemistry/genetics/*metabolism ; Mutation ; Oligopeptides/pharmacology ; Phosphorylation ; Presenilin-1 ; Presenilin-2 ; Rats ; Staurosporine/pharmacology ; Tumor Cells, Cultured
    Print ISSN: 0036-8075
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  • 13
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    NMDA channel regulation by channel-associated protein tyrosine kinase Src (1997)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1997-01-31
    Description: The N-methyl-D-aspartate (NMDA) receptor mediates synaptic transmission and plasticity in the central nervous system (CNS) and is regulated by tyrosine phosphorylation. In membrane patches excised from mammalian central neurons, the endogenous tyrosine kinase Src was shown to regulate the activity of NMDA channels. The action of Src required a sequence [Src(40-58)] within the noncatalytic, unique domain of Src. In addition, Src coprecipitated with NMDA receptor proteins. Finally, endogenous Src regulated the function of NMDA receptors at synapses. Thus, NMDA receptor regulation by Src may be important in development, plasticity, and pathology in the CNS.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Yu, X M -- Askalan, R -- Keil, G J 2nd -- Salter, M W -- New York, N.Y. -- Science. 1997 Jan 31;275(5300):674-8.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Division of Neuroscience, Hospital for Sick Children, Department of Physiology, University of Toronto, Toronto, Ontario, M5G 1X8 Canada.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/9005855" target="_blank"〉PubMed〈/a〉
    Keywords: Amino Acid Sequence ; Animals ; Cells, Cultured ; Ion Channel Gating ; Ion Channels/*metabolism ; Molecular Sequence Data ; N-Methylaspartate/metabolism ; Neurons/*metabolism ; Oligopeptides/pharmacology ; Patch-Clamp Techniques ; Phosphorylation ; Phosphotyrosine/metabolism ; Rats ; Rats, Wistar ; Receptors, N-Methyl-D-Aspartate/*metabolism ; Spinal Cord/cytology ; Synapses/*metabolism ; Synaptic Transmission ; src-Family Kinases/chemistry/*metabolism
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  • 14
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    Fear of hope (1997)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1997-10-23
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Young, W -- New York, N.Y. -- Science. 1997 Sep 26;277(5334):1907.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/9333941" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Axons/physiology ; Cell Transplantation ; Genetic Therapy ; Humans ; Immunotherapy ; *Nerve Regeneration ; Neuroglia/*transplantation ; Olfactory Bulb/cytology/transplantation ; Rats ; Spinal Cord Injuries/surgery/*therapy
    Print ISSN: 0036-8075
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  • 15
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    The product of the proto-oncogene c-cbl: a negative regulator of the Syk tyrosine kinase (1997)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1997-04-18
    Description: Engagement of antigen and immunoglobulin receptors on hematopoietic cells is directly coupled to activation of nonreceptor protein tyrosine kinases (PTKs) that then phosphorylate critical intracellular substrates. In mast cells stimulated through the FcvarepsilonRI receptor, activation of several PTKs including Syk leads to degranulation and release of such mediators of the allergic response as histamine and serotonin. Regulation of Syk function occurred through interaction with the Cbl protein, itself a PTK substrate in this system. Overexpression of Cbl led to inhibition of Syk and suppression of serotonin release from mast cells, demonstrating its ability to inhibit a nonreceptor tyrosine kinase. Complex adaptor proteins such as Cbl can directly regulate the functions of the proteins they bind.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Ota, Y -- Samelson, L E -- New York, N.Y. -- Science. 1997 Apr 18;276(5311):418-20.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Cell Biology and Metabolism Branch, National Institute of Child Health and Human Development, National Institutes of Health, Bethesda, MD 20892-5430, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/9103201" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Cell Degranulation ; Enzyme Precursors/antagonists & inhibitors/*metabolism ; Genetic Vectors ; Intracellular Signaling Peptides and Proteins ; Mast Cells/*metabolism ; Mutation ; Phosphorylation ; Phosphotyrosine/metabolism ; Protein-Tyrosine Kinases/antagonists & inhibitors/*metabolism ; Proto-Oncogene Proteins/chemistry/genetics/*metabolism ; Proto-Oncogene Proteins c-cbl ; Rats ; Receptors, IgE/metabolism ; Receptors, IgG/metabolism ; Recombinant Proteins/metabolism ; Serotonin/metabolism ; Signal Transduction ; Tumor Cells, Cultured ; *Ubiquitin-Protein Ligases ; Vaccinia virus
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    Beta2-adrenergic receptor redistribution in heart failure changes cAMP compartmentation (2010)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2010-02-27
    Description: The beta1- and beta2-adrenergic receptors (betaARs) on the surface of cardiomyocytes mediate distinct effects on cardiac function and the development of heart failure by regulating production of the second messenger cyclic adenosine monophosphate (cAMP). The spatial localization in cardiomyocytes of these betaARs, which are coupled to heterotrimeric guanine nucleotide-binding proteins (G proteins), and the functional implications of their localization have been unclear. We combined nanoscale live-cell scanning ion conductance and fluorescence resonance energy transfer microscopy techniques and found that, in cardiomyocytes from healthy adult rats and mice, spatially confined beta2AR-induced cAMP signals are localized exclusively to the deep transverse tubules, whereas functional beta1ARs are distributed across the entire cell surface. In cardiomyocytes derived from a rat model of chronic heart failure, beta2ARs were redistributed from the transverse tubules to the cell crest, which led to diffuse receptor-mediated cAMP signaling. Thus, the redistribution of beta(2)ARs in heart failure changes compartmentation of cAMP and might contribute to the failing myocardial phenotype.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Nikolaev, Viacheslav O -- Moshkov, Alexey -- Lyon, Alexander R -- Miragoli, Michele -- Novak, Pavel -- Paur, Helen -- Lohse, Martin J -- Korchev, Yuri E -- Harding, Sian E -- Gorelik, Julia -- 084064/Wellcome Trust/United Kingdom -- BB/D020875/1/Biotechnology and Biological Sciences Research Council/United Kingdom -- G0500373/Medical Research Council/United Kingdom -- Biotechnology and Biological Sciences Research Council/United Kingdom -- Medical Research Council/United Kingdom -- New York, N.Y. -- Science. 2010 Mar 26;327(5973):1653-7. doi: 10.1126/science.1185988. Epub 2010 Feb 25.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Cardiac Medicine, National Heart and Lung Institute, Imperial College London, Dovehouse Street, London SW3 6LY, UK.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/20185685" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Cell Compartmentation ; Cell Membrane/*metabolism/ultrastructure ; Chronic Disease ; Cyclic AMP/*metabolism ; Cyclic AMP-Dependent Protein Kinases/metabolism ; Cytosol/metabolism ; Fluorescence Resonance Energy Transfer ; Heart Failure/*metabolism/*pathology ; Male ; Mice ; Mice, Knockout ; Mice, Transgenic ; Microscopy/methods ; Myocytes, Cardiac/*metabolism/ultrastructure ; Rats ; Rats, Sprague-Dawley ; Receptors, Adrenergic, beta-1/genetics/metabolism ; Receptors, Adrenergic, beta-2/genetics/*metabolism ; Sarcolemma/*metabolism/ultrastructure ; Signal Transduction
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    Role of secondary sensory cortices in emotional memory storage and retrieval in rats (2010)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2010-08-07
    Description: Visual, acoustic, and olfactory stimuli associated with a highly charged emotional situation take on the affective qualities of that situation. Where the emotional meaning of a given sensory experience is stored is a matter of debate. We found that excitotoxic lesions of auditory, visual, or olfactory secondary sensory cortices impaired remote, but not recent, fear memories in rats. Amnesia was modality-specific and not due to an interference with sensory or emotional processes. In these sites, memory persistence was dependent on ongoing protein kinase Mzeta activity and was associated with an increased activity of layers II-IV, thus suggesting a synaptic strengthening of corticocortical connections. Lesions of the same areas left intact the memory of sensory stimuli not associated with any emotional charge. We propose that secondary sensory cortices support memory storage and retrieval of sensory stimuli that have acquired a behavioral salience with the experience.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Sacco, Tiziana -- Sacchetti, Benedetto -- New York, N.Y. -- Science. 2010 Aug 6;329(5992):649-56. doi: 10.1126/science.1183165.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Neuroscience, University of Turin, Corso Raffaello 30, I-10125 Turin, Italy.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/20689011" target="_blank"〉PubMed〈/a〉
    Keywords: Acoustic Stimulation ; Amnesia/physiopathology ; Amygdala/physiology ; Animals ; Auditory Cortex/*physiology ; Conditioning (Psychology) ; Early Growth Response Protein 1/genetics/metabolism ; *Emotions ; *Fear ; Habituation, Psychophysiologic ; Male ; Memory/*physiology ; Odors ; Olfactory Pathways/*physiology ; Photic Stimulation ; Protein Kinase C/antagonists & inhibitors/metabolism ; Rats ; Rats, Wistar ; Synapses/physiology ; Visual Cortex/*physiology
    Print ISSN: 0036-8075
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    Molecular identity of dendritic voltage-gated sodium channels (2010)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2010-05-15
    Description: Active invasion of the dendritic tree by action potentials (APs) generated in the axon is essential for associative synaptic plasticity and neuronal ensemble formation. In cortical pyramidal cells (PCs), this AP back-propagation is supported by dendritic voltage-gated Na+ (Nav) channels, whose molecular identity is unknown. Using a highly sensitive electron microscopic immunogold technique, we revealed the presence of the Nav1.6 subunit in hippocampal CA1 PC proximal and distal dendrites. Here, the subunit density is lower by a factor of 35 to 80 than that found in axon initial segments. A gradual decrease in Nav1.6 density along the proximodistal axis of the dendritic tree was also detected without any labeling in dendritic spines. Our results reveal the characteristic subcellular distribution of the Nav1.6 subunit, identifying this molecule as a key substrate enabling dendritic excitability.〈br /〉〈br /〉〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3546315/" target="_blank"〉〈img src="https://static.pubmed.gov/portal/portal3rc.fcgi/4089621/img/3977009" border="0"〉〈/a〉   〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3546315/" target="_blank"〉This paper as free author manuscript - peer-reviewed and accepted for publication〈/a〉〈br /〉〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Lorincz, Andrea -- Nusser, Zoltan -- 083484/Wellcome Trust/United Kingdom -- 090197/Wellcome Trust/United Kingdom -- Wellcome Trust/United Kingdom -- New York, N.Y. -- Science. 2010 May 14;328(5980):906-9. doi: 10.1126/science.1187958.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Laboratory of Cellular Neurophysiology, Institute of Experimental Medicine, Hungarian Academy of Sciences, 1083 Budapest, Hungary. lorincz@koki.hu〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/20466935" target="_blank"〉PubMed〈/a〉
    Keywords: Action Potentials ; Animals ; Axons/chemistry/physiology ; CA1 Region, Hippocampal/*chemistry/physiology/ultrastructure ; Cell Membrane/chemistry ; Dendrites/*chemistry/physiology/ultrastructure ; Dendritic Spines/chemistry ; Fluorescent Antibody Technique ; Freeze Fracturing ; Immunohistochemistry ; Ion Channel Gating ; Male ; Microscopy, Immunoelectron ; NAV1.1 Voltage-Gated Sodium Channel ; NAV1.6 Voltage-Gated Sodium Channel ; Nerve Tissue Proteins/analysis ; Ranvier's Nodes/chemistry ; Rats ; Rats, Wistar ; Sodium Channels/*analysis
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    Transition to addiction is associated with a persistent impairment in synaptic plasticity (2010)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2010-06-26
    Description: Chronic exposure to drugs of abuse induces countless modifications in brain physiology. However, the neurobiological adaptations specifically associated with the transition to addiction are unknown. Cocaine self-administration rapidly suppresses long-term depression (LTD), an important form of synaptic plasticity in the nucleus accumbens. Using a rat model of addiction, we found that animals that progressively develop the behavioral hallmarks of addiction have permanently impaired LTD, whereas LTD is progressively recovered in nonaddicted rats maintaining a controlled drug intake. By making drug seeking consistently resistant to modulation by environmental contingencies and consequently more and more inflexible, a persistently impaired LTD could mediate the transition to addiction.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Kasanetz, Fernando -- Deroche-Gamonet, Veronique -- Berson, Nadege -- Balado, Eric -- Lafourcade, Mathieu -- Manzoni, Olivier -- Piazza, Pier Vincenzo -- New York, N.Y. -- Science. 2010 Jun 25;328(5986):1709-12. doi: 10.1126/science.1187801.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉INSERM U862, NeuroCentre Magendie, 147 Rue Leo Saignat, 33077, Bordeaux Cedex, France.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/20576893" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; *Behavior, Addictive ; Cocaine/administration & dosage ; Cocaine-Related Disorders/*physiopathology ; Disease Models, Animal ; Glutamic Acid/metabolism ; *Long-Term Synaptic Depression ; Nucleus Accumbens/*physiopathology ; Rats ; Rats, Sprague-Dawley ; Receptors, Metabotropic Glutamate/metabolism ; Receptors, N-Methyl-D-Aspartate/metabolism ; Self Administration ; Synaptic Transmission
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    Astrocytes control breathing through pH-dependent release of ATP (2010)
    American Association for the Advancement of Science (AAAS)
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    Publication Date: 2010-07-22
    Description: Astrocytes provide structural and metabolic support for neuronal networks, but direct evidence demonstrating their active role in complex behaviors is limited. Central respiratory chemosensitivity is an essential mechanism that, via regulation of breathing, maintains constant levels of blood and brain pH and partial pressure of CO2. We found that astrocytes of the brainstem chemoreceptor areas are highly chemosensitive. They responded to physiological decreases in pH with vigorous elevations in intracellular Ca2+ and release of adenosine triphosphate (ATP). ATP propagated astrocytic Ca2+ excitation, activated chemoreceptor neurons, and induced adaptive increases in breathing. Mimicking pH-evoked Ca2+ responses by means of optogenetic stimulation of astrocytes expressing channelrhodopsin-2 activated chemoreceptor neurons via an ATP-dependent mechanism and triggered robust respiratory responses in vivo. This demonstrates a potentially crucial role for brain glial cells in mediating a fundamental physiological reflex.〈br /〉〈br /〉〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3160742/" target="_blank"〉〈img src="https://static.pubmed.gov/portal/portal3rc.fcgi/4089621/img/3977009" border="0"〉〈/a〉   〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3160742/" target="_blank"〉This paper as free author manuscript - peer-reviewed and accepted for publication〈/a〉〈br /〉〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Gourine, Alexander V -- Kasymov, Vitaliy -- Marina, Nephtali -- Tang, Feige -- Figueiredo, Melina F -- Lane, Samantha -- Teschemacher, Anja G -- Spyer, K Michael -- Deisseroth, Karl -- Kasparov, Sergey -- 079040/Wellcome Trust/United Kingdom -- PG/09/064/27886/British Heart Foundation/United Kingdom -- British Heart Foundation/United Kingdom -- New York, N.Y. -- Science. 2010 Jul 30;329(5991):571-5. doi: 10.1126/science.1190721. Epub 2010 Jul 15.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Neuroscience, Physiology, and Pharmacology, University College London, London WC1E 6BT, UK. a.gourine@ucl.ac.uk〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/20647426" target="_blank"〉PubMed〈/a〉
    Keywords: Adenosine Triphosphate/*metabolism ; Animals ; Astrocytes/*physiology ; Brain Stem/cytology/*physiology ; Calcium/metabolism ; Carbon Dioxide/analysis/blood ; Cells, Cultured ; Chemoreceptor Cells/*physiology ; Exocytosis ; Gap Junctions/metabolism ; Hydrogen-Ion Concentration ; In Vitro Techniques ; Light ; Medulla Oblongata/cytology/*physiology ; Membrane Potentials ; Rats ; Rats, Sprague-Dawley ; Receptors, Purinergic P2/metabolism ; *Respiration ; Rhodopsin/genetics/metabolism
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    Sfrp5 is an anti-inflammatory adipokine that modulates metabolic dysfunction in obesity (2010)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2010-06-19
    Description: Adipose tissue secretes proteins referred to as adipokines, many of which promote inflammation and disrupt glucose homeostasis. Here we show that secreted frizzled-related protein 5 (Sfrp5), a protein previously linked to the Wnt signaling pathway, is an anti-inflammatory adipokine whose expression is perturbed in models of obesity and type 2 diabetes. Sfrp5-deficient mice fed a high-calorie diet developed severe glucose intolerance and hepatic steatosis, and their adipose tissue showed an accumulation of activated macrophages that was associated with activation of the c-Jun N-terminal kinase signaling pathway. Adenovirus-mediated delivery of Sfrp5 to mouse models of obesity ameliorated glucose intolerance and hepatic steatosis. Thus, in the setting of obesity, Sfrp5 secretion by adipocytes exerts salutary effects on metabolic dysfunction by controlling inflammatory cells within adipose tissue.〈br /〉〈br /〉〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3132938/" target="_blank"〉〈img src="https://static.pubmed.gov/portal/portal3rc.fcgi/4089621/img/3977009" border="0"〉〈/a〉   〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3132938/" target="_blank"〉This paper as free author manuscript - peer-reviewed and accepted for publication〈/a〉〈br /〉〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Ouchi, Noriyuki -- Higuchi, Akiko -- Ohashi, Koji -- Oshima, Yuichi -- Gokce, Noyan -- Shibata, Rei -- Akasaki, Yuichi -- Shimono, Akihiko -- Walsh, Kenneth -- AG15052/AG/NIA NIH HHS/ -- AG34972/AG/NIA NIH HHS/ -- HL81587/HL/NHLBI NIH HHS/ -- HL86785/HL/NHLBI NIH HHS/ -- P01 HL081587/HL/NHLBI NIH HHS/ -- P01 HL081587-05/HL/NHLBI NIH HHS/ -- R01 AG015052/AG/NIA NIH HHS/ -- R01 AG015052-06/AG/NIA NIH HHS/ -- R01 AG034972/AG/NIA NIH HHS/ -- R01 AG034972-03/AG/NIA NIH HHS/ -- R01 HL086785/HL/NHLBI NIH HHS/ -- R01 HL086785-19/HL/NHLBI NIH HHS/ -- New York, N.Y. -- Science. 2010 Jul 23;329(5990):454-7. doi: 10.1126/science.1188280. Epub 2010 Jun 17.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Molecular Cardiology and Whitaker Cardiovascular Institute, Boston University School of Medicine, 715 Albany Street, W611, Boston, MA 02118, USA. nouchi@bu.edu〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/20558665" target="_blank"〉PubMed〈/a〉
    Keywords: 3T3-L1 Cells ; Adipocytes/*metabolism/pathology ; Adipokines/genetics/*metabolism ; Adipose Tissue/*metabolism/pathology ; Animals ; Dietary Fats/administration & dosage ; Dietary Sucrose/administration & dosage ; Fatty Liver/pathology/therapy ; Genetic Vectors ; Glucose/metabolism ; Humans ; Inflammation ; Insulin/metabolism ; Insulin Resistance ; Intercellular Signaling Peptides and Proteins/genetics/*metabolism ; Macrophages/*metabolism ; Mice ; Mice, Inbred C57BL ; Mice, Obese ; Mitogen-Activated Protein Kinase 8/genetics/metabolism ; Obesity/*metabolism/pathology ; Phosphorylation ; Rats ; Rats, Zucker ; Signal Transduction ; Wnt Proteins/metabolism
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    Alpha-synuclein promotes SNARE-complex assembly in vivo and in vitro (2010)
    American Association for the Advancement of Science (AAAS)
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    Publication Date: 2010-08-28
    Description: Presynaptic nerve terminals release neurotransmitters repeatedly, often at high frequency, and in relative isolation from neuronal cell bodies. Repeated release requires cycles of soluble N-ethylmaleimide-sensitive factor attachment protein receptor (SNARE)-complex assembly and disassembly, with continuous generation of reactive SNARE-protein intermediates. Although many forms of neurodegeneration initiate presynaptically, only few pathogenic mechanisms are known, and the functions of presynaptic proteins linked to neurodegeneration, such as alpha-synuclein, remain unclear. Here, we show that maintenance of continuous presynaptic SNARE-complex assembly required a nonclassical chaperone activity mediated by synucleins. Specifically, alpha-synuclein directly bound to the SNARE-protein synaptobrevin-2/vesicle-associated membrane protein 2 (VAMP2) and promoted SNARE-complex assembly. Moreover, triple-knockout mice lacking synucleins developed age-dependent neurological impairments, exhibited decreased SNARE-complex assembly, and died prematurely. Thus, synucleins may function to sustain normal SNARE-complex assembly in a presynaptic terminal during aging.〈br /〉〈br /〉〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3235365/" target="_blank"〉〈img src="https://static.pubmed.gov/portal/portal3rc.fcgi/4089621/img/3977009" border="0"〉〈/a〉   〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3235365/" target="_blank"〉This paper as free author manuscript - peer-reviewed and accepted for publication〈/a〉〈br /〉〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Burre, Jacqueline -- Sharma, Manu -- Tsetsenis, Theodoros -- Buchman, Vladimir -- Etherton, Mark R -- Sudhof, Thomas C -- 075615/Wellcome Trust/United Kingdom -- Howard Hughes Medical Institute/ -- New York, N.Y. -- Science. 2010 Sep 24;329(5999):1663-7. doi: 10.1126/science.1195227. Epub 2010 Aug 26.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Molecular and Cellular Physiology, and Howard Hughes Medical Institute, Stanford University, 1050 Arastradero Road, Palo Alto, CA 94304-5543, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/20798282" target="_blank"〉PubMed〈/a〉
    Keywords: *Aging ; Animals ; Cell Line ; Cells, Cultured ; HSP40 Heat-Shock Proteins/metabolism ; Humans ; Membrane Fusion ; Membrane Proteins/metabolism ; Mice ; Mice, Knockout ; Mice, Transgenic ; Nerve Degeneration/*metabolism ; Neurons/*metabolism ; Presynaptic Terminals/*metabolism ; Protein Binding ; Rats ; Recombinant Fusion Proteins/metabolism ; SNARE Proteins/*metabolism ; Vesicle-Associated Membrane Protein 2/metabolism ; alpha-Synuclein/chemistry/genetics/*metabolism
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    FCHo proteins are nucleators of clathrin-mediated endocytosis (2010)
    American Association for the Advancement of Science (AAAS)
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    Publication Date: 2010-05-08
    Description: Clathrin-mediated endocytosis, the major pathway for ligand internalization into eukaryotic cells, is thought to be initiated by the clustering of clathrin and adaptors around receptors destined for internalization. However, here we report that the membrane-sculpting F-BAR domain-containing Fer/Cip4 homology domain-only proteins 1 and 2 (FCHo1/2) were required for plasma membrane clathrin-coated vesicle (CCV) budding and marked sites of CCV formation. Changes in FCHo1/2 expression levels correlated directly with numbers of CCV budding events, ligand endocytosis, and synaptic vesicle marker recycling. FCHo1/2 proteins bound specifically to the plasma membrane and recruited the scaffold proteins eps15 and intersectin, which in turn engaged the adaptor complex AP2. The FCHo F-BAR membrane-bending activity was required, leading to the proposal that FCHo1/2 sculpt the initial bud site and recruit the clathrin machinery for CCV formation.〈br /〉〈br /〉〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC2883440/" target="_blank"〉〈img src="https://static.pubmed.gov/portal/portal3rc.fcgi/4089621/img/3977009" border="0"〉〈/a〉   〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC2883440/" target="_blank"〉This paper as free author manuscript - peer-reviewed and accepted for publication〈/a〉〈br /〉〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Henne, William Mike -- Boucrot, Emmanuel -- Meinecke, Michael -- Evergren, Emma -- Vallis, Yvonne -- Mittal, Rohit -- McMahon, Harvey T -- MC_U105178795/Medical Research Council/United Kingdom -- U.1051.02.007(78795)/Medical Research Council/United Kingdom -- Medical Research Council/United Kingdom -- New York, N.Y. -- Science. 2010 Jun 4;328(5983):1281-4. doi: 10.1126/science.1188462. Epub 2010 May 6.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Medical Research Council, Laboratory of Molecular Biology (MRC-LMB), Hills Road, Cambridge CB2 0QH, UK.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/20448150" target="_blank"〉PubMed〈/a〉
    Keywords: Adaptor Protein Complex 2/metabolism ; Adaptor Proteins, Signal Transducing ; Adaptor Proteins, Vesicular Transport/metabolism ; Animals ; Calcium-Binding Proteins/metabolism ; Cell Line ; Cell Membrane/metabolism ; Cells, Cultured ; Clathrin/*metabolism ; Clathrin-Coated Vesicles/*metabolism ; *Endocytosis ; HeLa Cells ; Humans ; Intracellular Signaling Peptides and Proteins/metabolism ; Membrane Proteins ; Mice ; Models, Molecular ; Neurons/cytology/metabolism ; Phosphoproteins/metabolism ; Protein Multimerization ; Protein Structure, Tertiary ; Proteins/chemistry/*metabolism ; RNA Interference ; Rats ; Rats, Sprague-Dawley ; Recombinant Fusion Proteins/metabolism ; Synaptic Vesicles/metabolism
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    Medicine. Refugee receptors switch sides (2010)
    American Association for the Advancement of Science (AAAS)
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    Publication Date: 2010-03-27
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Dorn, Gerald W 2nd -- R01 HL087871/HL/NHLBI NIH HHS/ -- New York, N.Y. -- Science. 2010 Mar 26;327(5973):1586-7. doi: 10.1126/science.1188538.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Internal Medicine, Washington University School of Medicine, St. Louis, MO 63110, USA. gdorn@wustl.edu〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/20339055" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Cell Compartmentation ; Cell Membrane/*metabolism/ultrastructure ; Cyclic AMP/*metabolism ; Heart Failure/*metabolism/pathology/physiopathology ; Humans ; Membrane Microdomains/metabolism ; Mice ; Myocardial Contraction ; Myocytes, Cardiac/*metabolism/ultrastructure ; Rats ; Receptors, Adrenergic, beta-1/*metabolism ; Receptors, Adrenergic, beta-2/*metabolism ; Sarcolemma/metabolism/ultrastructure ; Signal Transduction
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    Neuroscience. Dendrites do it in sequences (2010)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2010-10-12
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Destexhe, Alain -- New York, N.Y. -- Science. 2010 Sep 24;329(5999):1611-2. doi: 10.1126/science.1196743.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Unite de Neurosciences, Information & Complexite, CNRS, 91198 Gif-sur-Yvette, France. destexhe@unic.cnrs-gif.fr〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/20929837" target="_blank"〉PubMed〈/a〉
    Keywords: Action Potentials ; Animals ; Cerebral Cortex/cytology/*physiology ; Dendrites/*physiology/ultrastructure ; Dendritic Spines/*physiology/ultrastructure ; Membrane Potentials ; Pyramidal Cells/*physiology/ultrastructure ; Rats ; Receptors, N-Methyl-D-Aspartate/metabolism ; Synapses/*physiology
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    Neuroscience. Dedicated to memory? (2010)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2010-12-04
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Eichenbaum, Howard -- New York, N.Y. -- Science. 2010 Dec 3;330(6009):1331-2. doi: 10.1126/science.1199462.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Center for Memory and Brain, Boston University, Boston, MA 02215, USA. hbe@bu.edu〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/21127238" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Brain Injuries/*physiopathology ; Brain Mapping ; Darkness ; Hippocampus/physiology ; *Memory ; Memory Disorders/*physiopathology ; Models, Neurological ; Neural Pathways/physiology ; Prefrontal Cortex/physiology ; Rats ; Sensory Deprivation ; Temporal Lobe/*injuries/*physiopathology
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    Axon extension occurs independently of centrosomal microtubule nucleation (2010)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2010-01-09
    Description: Microtubules are polymeric protein structures and components of the cytoskeleton. Their dynamic polymerization is important for diverse cellular functions. The centrosome is the classical site of microtubule nucleation and is thought to be essential for axon growth and neuronal differentiation--processes that require microtubule assembly. We found that the centrosome loses its function as a microtubule organizing center during development of rodent hippocampal neurons. Axons still extended and regenerated through acentrosomal microtubule nucleation, and axons continued to grow after laser ablation of the centrosome in early neuronal development. Thus, decentralized microtubule assembly enables axon extension and regeneration, and, after axon initiation, acentrosomal microtubule nucleation arranges the cytoskeleton, which is the source of the sophisticated morphology of neurons.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Stiess, Michael -- Maghelli, Nicola -- Kapitein, Lukas C -- Gomis-Ruth, Susana -- Wilsch-Brauninger, Michaela -- Hoogenraad, Casper C -- Tolic-Norrelykke, Iva M -- Bradke, Frank -- New York, N.Y. -- Science. 2010 Feb 5;327(5966):704-7. doi: 10.1126/science.1182179. Epub 2010 Jan 7.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Independent Junior Research Group Axonal Growth and Regeneration, Max Planck Institute of Neurobiology, Am Klopferspitz 18, 82152 Martinsried, Germany.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/20056854" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Antigens/metabolism ; Axons/*physiology/ultrastructure ; Axotomy ; Centrosome/*physiology/ultrastructure ; Hippocampus/*cytology ; Mice ; Microtubule-Associated Proteins/metabolism ; Microtubules/*metabolism/ultrastructure ; Nerve Regeneration ; Neurogenesis ; Neurons/*physiology/ultrastructure ; Rats ; Tubulin/metabolism
    Print ISSN: 0036-8075
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    A synaptically controlled, associative signal for Hebbian plasticity in hippocampal neurons (1997)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1997-01-10
    Description: The role of back-propagating dendritic action potentials in the induction of long-term potentiation (LTP) was investigated in CA1 neurons by means of dendritic patch recordings and simultaneous calcium imaging. Pairing of subthreshold excitatory postsynaptic potentials (EPSPs) with back-propagating action potentials resulted in an amplification of dendritic action potentials and evoked calcium influx near the site of synaptic input. This pairing also induced a robust LTP, which was reduced when EPSPs were paired with non-back-propagating action potentials or when stimuli were unpaired. Action potentials thus provide a synaptically controlled, associative signal to the dendrites for Hebbian modifications of synaptic strength.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Magee, J C -- Johnston, D -- MH44754/MH/NIMH NIH HHS/ -- NS09482/NS/NINDS NIH HHS/ -- NS11535/NS/NINDS NIH HHS/ -- etc. -- New York, N.Y. -- Science. 1997 Jan 10;275(5297):209-13.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Division of Neuroscience, Baylor College of Medicine, One Baylor Plaza, Houston, TX 77030, USA. jmagee@ptp.bcm.tmc.edu.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/8985013" target="_blank"〉PubMed〈/a〉
    Keywords: Action Potentials/drug effects ; Animals ; Axons/physiology ; Calcium/metabolism ; Calcium Channel Blockers/pharmacology ; Calcium Channels/drug effects/physiology ; Dendrites/*physiology ; Feedback ; In Vitro Techniques ; Long-Term Potentiation/drug effects/*physiology ; Patch-Clamp Techniques ; Pyramidal Cells/drug effects/*physiology ; Rats ; Rats, Sprague-Dawley ; Receptors, N-Methyl-D-Aspartate/metabolism ; Synapses/*physiology ; *Synaptic Transmission/drug effects ; Tetrodotoxin/pharmacology
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    A bitter battle over insulin gene (1997)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1997-08-22
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Marshall, E -- New York, N.Y. -- Science. 1997 Aug 22;277(5329):1028-30.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/9289846" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Base Sequence ; California ; *Cloning, Molecular ; DNA, Recombinant ; Drug Industry ; *Genetic Research ; *Genetic Vectors ; Guideline Adherence/legislation & jurisprudence ; Humans ; Insulin/*genetics ; National Institutes of Health (U.S.) ; *Patents as Topic ; *Plasmids ; Rats ; Recombinant Proteins ; Scientific Misconduct/*legislation & jurisprudence ; United States ; Universities
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    Molecules give new insights into deadliest brain cancers (1997)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1997-12-31
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Barinaga, M -- New York, N.Y. -- Science. 1997 Nov 14;278(5341):1226.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/9411748" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Brevican ; Carrier Proteins/genetics/*physiology ; Chloride Channels/*physiology ; Chondroitin Sulfate Proteoglycans ; Glioma/*metabolism/*pathology/therapy ; Humans ; Lectins, C-Type ; Neoplasm Invasiveness ; Nerve Tissue Proteins/genetics/*physiology ; Neuroglia/metabolism ; Rats ; Tumor Cells, Cultured
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    Seeing the synapse (1997)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1997-04-25
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Kelner, K L -- New York, N.Y. -- Science. 1997 Apr 25;276(5312):547.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/9148416" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; *Calcium-Binding Proteins ; Cells, Cultured ; Electric Stimulation ; Hippocampus ; Membrane Glycoproteins/metabolism ; Membrane Proteins/metabolism ; Nerve Tissue Proteins/metabolism ; Neurons/metabolism ; Neurotransmitter Agents/*metabolism ; R-SNARE Proteins ; Rats ; Recombinant Fusion Proteins/metabolism ; Synapses/*metabolism ; Synaptic Transmission ; Synaptotagmins
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    The year of the dendrite (1997)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1997-01-10
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Sejnowski, T J -- New York, N.Y. -- Science. 1997 Jan 10;275(5297):178-9.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Howard Hughes Medical Institute at the Salk Institute for Biological Studies, University of California, San Diego, CA 92186, USA. terry@salk.edu〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/8999546" target="_blank"〉PubMed〈/a〉
    Keywords: Action Potentials ; Animals ; Calcium/metabolism ; Cerebral Cortex/cytology/*physiology ; Dendrites/*physiology ; Ion Channels ; Long-Term Potentiation ; Neuronal Plasticity ; Pyramidal Cells/*physiology ; Rats ; Synapses/physiology ; Synaptic Transmission
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    Calcium waves in retinal glial cells (1997)
    American Association for the Advancement of Science (AAAS)
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    Publication Date: 1997-02-07
    Description: Calcium signals were recorded from glial cells in acutely isolated rat retina to determine whether Ca2+ waves occur in glial cells of intact central nervous system tissue. Chemical (adenosine triphosphate), electrical, and mechanical stimulation of astrocytes initiated increases in the intracellular concentration of Ca2+ that propagated at approximately 23 micrometers per second through astrocytes and Muller cells as intercellular waves. The Ca2+ waves persisted in the absence of extracellular Ca2+ but were largely abolished by thapsigargin and intracellular heparin, indicating that Ca2+ was released from intracellular stores. The waves did not evoke changes in cell membrane potential but traveled synchronously in astrocytes and Muller cells, suggesting a functional linkage between these two types of glial cells. Such glial Ca2+ waves may constitute an extraneuronal signaling pathway in the central nervous system.〈br /〉〈br /〉〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC2410141/" target="_blank"〉〈img src="https://static.pubmed.gov/portal/portal3rc.fcgi/4089621/img/3977009" border="0"〉〈/a〉   〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC2410141/" target="_blank"〉This paper as free author manuscript - peer-reviewed and accepted for publication〈/a〉〈br /〉〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Newman, E A -- Zahs, K R -- EY04077/EY/NEI NIH HHS/ -- EY10383/EY/NEI NIH HHS/ -- R01 EY004077/EY/NEI NIH HHS/ -- R01 EY004077-19/EY/NEI NIH HHS/ -- New York, N.Y. -- Science. 1997 Feb 7;275(5301):844-7.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Physiology, University of Minnesota, 435 Delaware Street, SE, Minneapolis, MN 55455, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/9012354" target="_blank"〉PubMed〈/a〉
    Keywords: Adenosine Triphosphate/pharmacology ; Animals ; Astrocytes/*metabolism ; Calcium/*metabolism ; Calcium Channels/metabolism ; Electric Stimulation ; Heparin/pharmacology ; In Vitro Techniques ; Inositol 1,4,5-Trisphosphate Receptors ; Kinetics ; Membrane Potentials ; Neuroglia/*metabolism ; Physical Stimulation ; Rats ; Receptors, Cytoplasmic and Nuclear/metabolism ; Retina/*cytology/metabolism ; Signal Transduction ; Stimulation, Chemical ; Thapsigargin/pharmacology
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    Nuclear export of NF-ATc enhanced by glycogen synthase kinase-3 (1997)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1997-03-28
    Description: The transcription factor NF-AT responds to Ca2+-calcineurin signals by translocating to the nucleus, where it participates in the activation of early immune response genes. Calcineurin dephosphorylates conserved serine residues in the amino terminus of NF-AT, resulting in nuclear import. Purification of the NF-AT kinase revealed that it is composed of a priming kinase activity and glycogen synthase kinase-3 (GSK-3). GSK-3 phosphorylates conserved serines necessary for nuclear export, promotes nuclear exit, and thereby opposes Ca2+-calcineurin signaling. Because GSK-3 responds to signals initiated by Wnt and other ligands, NF-AT family members could be effectors of these pathways.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Beals, C R -- Sheridan, C M -- Turck, C W -- Gardner, P -- Crabtree, G R -- New York, N.Y. -- Science. 1997 Mar 28;275(5308):1930-4.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Howard Hughes Medical Institute, Department of Developmental Biology, Stanford University, Stanford, CA 94305, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/9072970" target="_blank"〉PubMed〈/a〉
    Keywords: Amino Acid Sequence ; Animals ; Biological Transport ; Brain/enzymology ; COS Cells ; Calcineurin ; Calcium/metabolism ; Calcium-Calmodulin-Dependent Protein Kinases/*metabolism ; Calmodulin-Binding Proteins/metabolism ; Cell Nucleus/*metabolism ; Cloning, Molecular ; Cyclic AMP-Dependent Protein Kinases/metabolism ; DNA-Binding Proteins/genetics/*metabolism ; Glycogen Synthase Kinase 3 ; Glycogen Synthase Kinases ; Humans ; Molecular Sequence Data ; NFATC Transcription Factors ; *Nuclear Proteins ; Phosphoprotein Phosphatases/metabolism ; Phosphorylation ; Rats ; Recombinant Fusion Proteins/metabolism ; Signal Transduction ; Transcription Factors/genetics/*metabolism ; Transfection
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    Curing rat glioblastoma: immunotherapy or graft rejection? (1997)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1997-04-04
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Beutler, A S -- Banck, M S -- Aguzzi, A -- New York, N.Y. -- Science. 1997 Apr 4;276(5309):20-1.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/9122700" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Glioblastoma/*immunology/*therapy ; *Graft Rejection ; Histocompatibility Antigens/*immunology ; Insulin-Like Growth Factor I/*genetics ; Major Histocompatibility Complex ; Neoplasm Transplantation ; RNA, Antisense/*therapeutic use ; Rats ; Transplantation, Homologous ; Tumor Cells, Cultured
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    Removal of osteoclast bone resorption products by transcytosis (1997)
    American Association for the Advancement of Science (AAAS)
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    Publication Date: 1997-04-11
    Description: Osteoclasts are multinucleated cells responsible for bone resorption. During the resorption cycle, osteoclasts undergo dramatic changes in their polarity, and resorbing cells reveal four functionally and structurally different membrane domains. Bone degradation products, both organic and inorganic, were endocytosed from the ruffled border membrane. They were then found to be transported in vesicles through the cell to the plasma membrane domain, located in the middle of the basal membrane, where they were liberated into the extracellular space. These results explain how resorbing osteoclasts can simultaneously remove large amounts of matrix degradation products and penetrate into bone.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Salo, J -- Lehenkari, P -- Mulari, M -- Metsikko, K -- Vaananen, H K -- New York, N.Y. -- Science. 1997 Apr 11;276(5310):270-3.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Anatomy and Biocenter, University of Oulu, Kajaanintie 52 A, 90220 Oulu, Finland.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/9092479" target="_blank"〉PubMed〈/a〉
    Keywords: Actins/metabolism ; Animals ; Biological Transport ; Biotin/metabolism ; Bone Matrix/*metabolism ; *Bone Resorption ; Cattle ; Cell Membrane/metabolism/ultrastructure ; Cell Polarity ; Cells, Cultured ; Endocytosis ; Extracellular Space/metabolism ; Microscopy, Confocal ; Microscopy, Electron ; Minerals/metabolism ; Organelles/metabolism ; Osteocalcin/metabolism ; Osteoclasts/*metabolism/ultrastructure ; Rats ; Tetracycline/metabolism
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    The importance of a well-groomed child (1997)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1997-10-06
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Sapolsky, R M -- New York, N.Y. -- Science. 1997 Sep 12;277(5332):1620-1.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Biology, Stanford University, Stanford, CA 94305, USA. sapolsky@leland.stanford.edu〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/9312858" target="_blank"〉PubMed〈/a〉
    Keywords: Aging ; Animals ; Animals, Newborn ; *Behavior, Animal ; Corticotropin-Releasing Hormone/metabolism ; Female ; Glucocorticoids/secretion ; *Grooming ; *Handling (Psychology) ; Hippocampus/physiology ; Humans ; *Maternal Behavior ; Rats ; Receptors, Glucocorticoid/metabolism
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  • 38
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    How does the brain organize memories? (1997)
    American Association for the Advancement of Science (AAAS)
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    Publication Date: 1997-07-18
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Eichenbaum, H -- New York, N.Y. -- Science. 1997 Jul 18;277(5324):330-2.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Psychology, Boston University, Boston, MA 02215, USA. hbe@bu.edu〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/9518364" target="_blank"〉PubMed〈/a〉
    Keywords: Amnesia/physiopathology/psychology ; Animals ; Brain Mapping ; Cerebral Cortex/*physiology ; Cues ; Haplorhini ; Hippocampus/*physiology ; Humans ; *Memory ; Neural Pathways ; Neurons/physiology ; Rats
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  • 39
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    Regulation of gliogenesis in the central nervous system by the JAK-STAT signaling pathway (1997)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1997-10-23
    Description: A mechanism by which members of the ciliary neurotrophic factor (CNTF)-leukemia inhibitory factor cytokine family regulate gliogenesis in the developing mammalian central nervous system was characterized. Activation of the CNTF receptor promoted differentiation of cerebral cortical precursor cells into astrocytes and inhibited differentiation of cortical precursors along a neuronal lineage. Although CNTF stimulated both the Janus kinase-signal transducer and activator of transcription (JAK-STAT) and Ras-mitogen-activated protein kinase signaling pathways in cortical precursor cells, the JAK-STAT signaling pathway selectively enhanced differentiation of these precursors along a glial lineage. These findings suggest that cytokine activation of the JAK-STAT signaling pathway may be a mechanism by which cell fate is controlled during mammalian development.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Bonni, A -- Sun, Y -- Nadal-Vicens, M -- Bhatt, A -- Frank, D A -- Rozovsky, I -- Stahl, N -- Yancopoulos, G D -- Greenberg, M E -- NIHP30-HD 18655/HD/NICHD NIH HHS/ -- R01 CA43855/CA/NCI NIH HHS/ -- New York, N.Y. -- Science. 1997 Oct 17;278(5337):477-83.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Division of Neuroscience, Children's Hospital, and Department of Neurobiology, Harvard Medical School, Boston, MA 02115, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/9334309" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Antigens, CD/metabolism ; Astrocytes/*cytology/drug effects/metabolism ; Cell Differentiation ; Cell Division ; Cell Lineage ; Cells, Cultured ; Cerebral Cortex/*cytology/embryology ; Ciliary Neurotrophic Factor ; Cytokine Receptor gp130 ; DNA-Binding Proteins/*metabolism ; Dimerization ; Glial Fibrillary Acidic Protein/biosynthesis ; Growth Inhibitors/metabolism/pharmacology ; *Interleukin-6 ; Janus Kinase 1 ; Leukemia Inhibitory Factor ; Leukemia Inhibitory Factor Receptor alpha Subunit ; Lymphokines/metabolism/pharmacology ; Membrane Glycoproteins/metabolism ; Nerve Growth Factors/pharmacology ; Nerve Tissue Proteins/metabolism/pharmacology ; Platelet-Derived Growth Factor/pharmacology ; Protein-Tyrosine Kinases/*metabolism ; Rats ; Receptor Protein-Tyrosine Kinases/metabolism ; Receptor, Ciliary Neurotrophic Factor ; Receptors, Cytokine/metabolism ; Receptors, Nerve Growth Factor/metabolism ; Receptors, OSM-LIF ; STAT1 Transcription Factor ; STAT3 Transcription Factor ; *Signal Transduction ; Stem Cells/cytology ; Trans-Activators/*metabolism
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  • 40
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    Postsynaptic glutamate transport at the climbing fiber-Purkinje cell synapse (1997)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1997-09-05
    Description: The role of postsynaptic, neuronal glutamate transporters in terminating signals at central excitatory synapses is not known. Stimulation of a climbing fiber input to cerebellar Purkinje cells was shown to generate an anionic current mediated by glutamate transporters. The kinetics of transporter currents were resolved by pulses of glutamate to outside-out membrane patches from Purkinje cells. Comparison of synaptic transporter currents to transporter currents expressed in Xenopus oocytes suggests that postsynaptic uptake at the climbing fiber synapse removes at least 22 percent of released glutamate. These neuronal transporter currents arise from synchronous activation of transporters that greatly outnumber activated AMPA receptors.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Otis, T S -- Kavanaugh, M P -- Jahr, C E -- NS21419/NS/NINDS NIH HHS/ -- NS33270/NS/NINDS NIH HHS/ -- New York, N.Y. -- Science. 1997 Sep 5;277(5331):1515-8.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Vollum Institute, L-474, Oregon Health Sciences University, 3181 Southwest Sam Jackson Park Road, Portland, OR 97201, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/9278516" target="_blank"〉PubMed〈/a〉
    Keywords: *Amino Acid Transport System X-AG ; Animals ; Aspartic Acid/analogs & derivatives/pharmacology ; Biological Transport ; Carrier Proteins/*metabolism ; Dicarboxylic Acids/pharmacology ; Glutamate Plasma Membrane Transport Proteins ; Glutamic Acid/*metabolism ; In Vitro Techniques ; Kinetics ; Nerve Fibers/*metabolism ; Oocytes ; Patch-Clamp Techniques ; Purkinje Cells/*metabolism ; Pyrrolidines/pharmacology ; Rats ; Receptors, AMPA/metabolism ; Receptors, Glutamate/*metabolism ; *Symporters ; Synapses/*metabolism ; *Synaptic Transmission ; Xenopus
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    Induction of cell migration by matrix metalloprotease-2 cleavage of laminin-5 (1997)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1997-07-11
    Description: Structural changes in the extracellular matrix are necessary for cell migration during tissue remodeling and tumor invasion. Specific cleavage of laminin-5 (Ln-5) by matrix metalloprotease-2 (MMP2) was shown to induce migration of breast epithelial cells. MMP2 cleaved the Ln-5 gamma2 subunit at residue 587, exposing a putative cryptic promigratory site on Ln-5 that triggers cell motility. This altered form of Ln-5 is found in tumors and in tissues undergoing remodeling, but not in quiescent tissues. Cleavage of Ln-5 by MMP2 and the resulting activation of the Ln-5 cryptic site may provide new targets for modulation of tumor cell invasion and tissue remodeling.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Giannelli, G -- Falk-Marzillier, J -- Schiraldi, O -- Stetler-Stevenson, W G -- Quaranta, V -- CA47858/CA/NCI NIH HHS/ -- DE10063/DE/NIDCR NIH HHS/ -- New York, N.Y. -- Science. 1997 Jul 11;277(5323):225-8.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Cell Biology, Scripps Research Institute, La Jolla, CA 92037, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/9211848" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Breast/*cytology/metabolism ; Cell Adhesion ; Cell Adhesion Molecules/*metabolism ; Cell Division ; Cell Line ; *Cell Movement ; Cell Size ; Collagenases/metabolism ; Epithelial Cells ; Epithelium/metabolism ; Extracellular Matrix/*metabolism ; Female ; Fibrinolysin/metabolism ; Gelatinases/antagonists & inhibitors/*metabolism ; Humans ; Matrix Metalloproteinase 2 ; Matrix Metalloproteinase 9 ; Metalloendopeptidases/antagonists & inhibitors/*metabolism ; Mice ; Phenylalanine/analogs & derivatives/pharmacology ; Protease Inhibitors/pharmacology ; Rats ; Recombinant Fusion Proteins/metabolism ; Skin Neoplasms/metabolism/pathology ; Thiophenes/pharmacology
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    Peripheral and cerebral asymmetries in the rat (1997)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1997-10-23
    Description: Rats learn a novel foraging pattern better with their right-side whiskers than with their left-side whiskers. They also learn better with the left cerebral hemisphere than with the right hemisphere. Rotating an already learned maze relative to the external environment most strongly reduces right-whisker performance; starting an already learned maze at a different location most strongly reduces left-whisker performance. These results suggest that the right-periphery-left-hemisphere system accesses a map-like representation of the foraging problem, whereas the left-periphery-right-hemisphere system accesses a rote path. Thus, as in humans, functional asymmetries in rats can be elicited by both peripheral and cortical manipulation, and each hemisphere makes qualitatively distinct contributions to a complex natural behavior.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉LaMendola, N P -- Bever, T G -- New York, N.Y. -- Science. 1997 Oct 17;278(5337):483-6.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Psychology, University of Arizona, Tucson, AZ 85721, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/9334310" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Brain/*physiology ; *Dominance, Cerebral ; Functional Laterality ; Male ; *Maze Learning ; Rats ; Rats, Sprague-Dawley ; Vibrissae/*physiology
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    Spatially and functionally distinct Ca2+ stores in sarcoplasmic and endoplasmic reticulum (1997)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1997-03-14
    Description: The organization of calcium (Ca2+) stores in the sarcoplasmic and endoplasmic reticulum (S-ER) is poorly understood. The dynamics of the storage and release of calcium in the S-ER of intact, cultured astrocytes and arterial myocytes were studied with high-resolution imaging methods. The S-ER appeared to be a continuous tubular network; nevertheless, calcium stores in the S-ER were organized into small, spatially distinct compartments that functioned as discrete units. Cyclopiazonic acid (an inhibitor of the calcium pump in the S-ER membrane) and caffeine or ryanodine unloaded different, spatially separate compartments. Heterogeneity of calcium stores was also revealed in cells activated by physiological agonists. These results suggest that cells can generate spatially and temporally distinct calcium signals to control individual calcium-dependent processes.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Golovina, V A -- Blaustein, M P -- HL-32276/HL/NHLBI NIH HHS/ -- NS-16106/NS/NINDS NIH HHS/ -- New York, N.Y. -- Science. 1997 Mar 14;275(5306):1643-8.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Physiology and Center for Vascular Biology and Hypertension, University of Maryland School of Medicine, Baltimore, MD 21201, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/9054358" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Astrocytes/*metabolism/ultrastructure ; Caffeine/pharmacology ; Calcium/*metabolism ; Calcium-Transporting ATPases/antagonists & inhibitors ; Cells, Cultured ; Endoplasmic Reticulum, Smooth/*metabolism/ultrastructure ; Fluorescent Dyes/metabolism ; Fura-2/analogs & derivatives/metabolism ; Glutamic Acid/pharmacology ; Indoles/pharmacology ; Mice ; Mitochondria/metabolism ; Mitochondria, Muscle/metabolism ; Muscle, Smooth, Vascular/cytology/*metabolism/ultrastructure ; Rats ; Ryanodine/pharmacology ; Sarcoplasmic Reticulum/*metabolism/ultrastructure ; Serotonin/pharmacology
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    Defective excitation-contraction coupling in experimental cardiac hypertrophy and heart failure (1997)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1997-05-02
    Description: Cardiac hypertrophy and heart failure caused by high blood pressure were studied in single myocytes taken from hypertensive rats (Dahl SS/Jr) and SH-HF rats in heart failure. Confocal microscopy and patch-clamp methods were used to examine excitation-contraction (EC) coupling, and the relation between the plasma membrane calcium current (ICa) and evoked calcium release from the sarcoplasmic reticulum (SR), which was visualized as "calcium sparks." The ability of ICa to trigger calcium release from the SR in both hypertrophied and failing hearts was reduced. Because ICa density and SR calcium-release channels were normal, the defect appears to reside in a change in the relation between SR calcium-release channels and sarcolemmal calcium channels. beta-Adrenergic stimulation largely overcame the defect in hypertrophic but not failing heart cells. Thus, the same defect in EC coupling that develops during hypertrophy may contribute to heart failure when compensatory mechanisms fail.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Gomez, A M -- Valdivia, H H -- Cheng, H -- Lederer, M R -- Santana, L F -- Cannell, M B -- McCune, S A -- Altschuld, R A -- Lederer, W J -- Wellcome Trust/United Kingdom -- New York, N.Y. -- Science. 1997 May 2;276(5313):800-6.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Physiology and the Medical Biotechnology Center, University of Maryland School of Medicine, 725 West Lombard Street, Baltimore, MD 21201, USA. Universit.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/9115206" target="_blank"〉PubMed〈/a〉
    Keywords: Adrenergic beta-Agonists/pharmacology ; Animals ; Calcium/*metabolism ; Calcium Channel Blockers/pharmacology ; Calcium Channels/metabolism ; Calcium Channels, L-Type ; Cardiomegaly/etiology/*physiopathology ; Cell Membrane/metabolism ; Heart Failure/etiology/*physiopathology ; Hypertension/complications ; Isoproterenol/pharmacology ; Microscopy, Confocal ; Muscle Proteins/metabolism ; Myocardial Contraction/drug effects/*physiology ; Myocardium/*metabolism ; Nifedipine/pharmacology ; Patch-Clamp Techniques ; Rats ; Rats, Inbred Strains ; Ryanodine Receptor Calcium Release Channel ; Sarcoplasmic Reticulum/metabolism
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    Dopamine's role (1997)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1997-12-31
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Gray, J A -- Young, A M -- Joseph, M H -- New York, N.Y. -- Science. 1997 Nov 28;278(5343):1548-9.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/9411769" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Conditioning (Psychology) ; Dopamine/metabolism/*physiology ; Humans ; Nucleus Accumbens/*metabolism ; Rats ; Reinforcement (Psychology)
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    Phosphorylation of the translational repressor PHAS-I by the mammalian target of rapamycin (1997)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1997-07-04
    Description: The immunosuppressant rapamycin interferes with G1-phase progression in lymphoid and other cell types by inhibiting the function of the mammalian target of rapamycin (mTOR). mTOR was determined to be a terminal kinase in a signaling pathway that couples mitogenic stimulation to the phosphorylation of the eukaryotic initiation factor (eIF)-4E-binding protein, PHAS-I. The rapamycin-sensitive protein kinase activity of mTOR was required for phosphorylation of PHAS-I in insulin-stimulated human embryonic kidney cells. mTOR phosphorylated PHAS-I on serine and threonine residues in vitro, and these modifications inhibited the binding of PHAS-I to eIF-4E. These studies define a role for mTOR in translational control and offer further insights into the mechanism whereby rapamycin inhibits G1-phase progression in mammalian cells.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Brunn, G J -- Hudson, C C -- Sekulic, A -- Williams, J M -- Hosoi, H -- Houghton, P J -- Lawrence, J C Jr -- Abraham, R T -- AR41189/AR/NIAMS NIH HHS/ -- DK28312/DK/NIDDK NIH HHS/ -- DK50628/DK/NIDDK NIH HHS/ -- etc. -- New York, N.Y. -- Science. 1997 Jul 4;277(5322):99-101.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Pharmacology, University of Virginia School of Medicine, Charlottesville, VA 22908, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/9204908" target="_blank"〉PubMed〈/a〉
    Keywords: Adaptor Proteins, Signal Transducing ; Androstadienes/pharmacology ; Animals ; Carrier Proteins/pharmacology ; Cell Line ; DNA-Binding Proteins/pharmacology ; Eukaryotic Initiation Factor-4E ; G1 Phase ; Heat-Shock Proteins/pharmacology ; Humans ; Insulin/pharmacology ; Peptide Initiation Factors/metabolism ; Phosphoproteins/genetics/*metabolism ; Phosphorylation ; Phosphotransferases (Alcohol Group Acceptor)/antagonists & inhibitors/*metabolism ; Polyenes/*pharmacology ; *Protein Kinases ; Rats ; Recombinant Proteins/metabolism ; Repressor Proteins/genetics/*metabolism ; Signal Transduction ; Sirolimus ; TOR Serine-Threonine Kinases ; Tacrolimus Binding Proteins ; Transfection ; Tumor Cells, Cultured
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    Blood flow regulation by S-nitrosohemoglobin in the physiological oxygen gradient (1997)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1997-06-27
    Description: The binding of oxygen to heme irons in hemoglobin promotes the binding of nitric oxide (NO) to cysteinebeta93, forming S-nitrosohemoglobin. Deoxygenation is accompanied by an allosteric transition in S-nitrosohemoglobin [from the R (oxygenated) to the T (deoxygenated) structure] that releases the NO group. S-nitrosohemoglobin contracts blood vessels and decreases cerebral perfusion in the R structure and relaxes vessels to improve blood flow in the T structure. By thus sensing the physiological oxygen gradient in tissues, hemoglobin exploits conformation-associated changes in the position of cysteinebeta93 SNO to bring local blood flow into line with oxygen requirements.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Stamler, J S -- Jia, L -- Eu, J P -- McMahon, T J -- Demchenko, I T -- Bonaventura, J -- Gernert, K -- Piantadosi, C A -- HL 52529/HL/NHLBI NIH HHS/ -- HR59130/HR/NHLBI NIH HHS/ -- New York, N.Y. -- Science. 1997 Jun 27;276(5321):2034-7.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Medicine, Duke University Medical Center, Room 321 MSRB, Box 2612, Durham, NC 27710, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/9197264" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Blood Pressure ; *Cerebrovascular Circulation ; Cysteine/chemistry/metabolism ; *Hemodynamics ; Hemoglobins/analysis/chemistry/*physiology ; *Mercaptoethanol ; Models, Molecular ; Nitric Oxide/blood/metabolism ; Nitroso Compounds/blood ; Oxygen/*blood ; Oxyhemoglobins/chemistry ; Protein Conformation ; Rats ; Rats, Sprague-Dawley ; *S-Nitrosothiols
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    Proinsulin C-peptide--biological activity? (1997)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1997-07-25
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Steiner, D F -- Rubenstein, A H -- New York, N.Y. -- Science. 1997 Jul 25;277(5325):531-2.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Howard Hughes Medical Institute, University of Chicago, Chicago, IL 60637, USA. dfsteine@midway.uchicago.edu〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/9254422" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Blood Glucose/metabolism ; C-Peptide/chemistry/pharmacology/*physiology ; Capillary Permeability/drug effects ; Cell Membrane/metabolism ; Diabetes Mellitus, Experimental/drug therapy/*physiopathology ; Humans ; Insulin/chemistry/metabolism ; Models, Molecular ; Neural Conduction ; Proinsulin/chemistry ; Protein Folding ; Rats ; Sodium-Potassium-Exchanging ATPase/metabolism
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    Dual role of phosphatidylinositol-3,4,5-trisphosphate in the activation of protein kinase B (1997)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1997-07-25
    Description: Protein kinase B (PKB) is a proto-oncogene that is activated in signaling pathways initiated by phosphoinositide 3-kinase. Chromatographic separation of brain cytosol revealed a kinase activity that phosphorylated and activated PKB only in the presence of phosphatidylinositol-3,4,5-trisphosphate [PtdIns(3,4,5)P3]. Phosphorylation occurred exclusively on threonine-308, a residue implicated in activation of PKB in vivo. PtdIns(3,4,5)P3 was determined to have a dual role: Its binding to the pleckstrin homology domain of PKB was required to allow phosphorylation by the upstream kinase and it directly activated the upstream kinase.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Stokoe, D -- Stephens, L R -- Copeland, T -- Gaffney, P R -- Reese, C B -- Painter, G F -- Holmes, A B -- McCormick, F -- Hawkins, P T -- New York, N.Y. -- Science. 1997 Jul 25;277(5325):567-70.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Onyx Pharmaceuticals, 3031 Research Drive, Richmond, CA 94806, USA. stokoe@cc.ucsf.edu〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/9228007" target="_blank"〉PubMed〈/a〉
    Keywords: 3-Phosphoinositide-Dependent Protein Kinases ; Adenosine Triphosphate/metabolism ; Amino Acid Sequence ; Animals ; Blood Proteins/chemistry ; Brain/enzymology ; COS Cells ; Cytosol/enzymology ; Enzyme Activation ; Humans ; Male ; Molecular Sequence Data ; Phosphatidylinositol Phosphates/*metabolism ; *Phosphoproteins ; Phosphorylation ; Phosphothreonine/metabolism ; Protein-Serine-Threonine Kinases/chemistry/*metabolism ; Proto-Oncogene Proteins/chemistry/*metabolism ; Proto-Oncogene Proteins c-akt ; Rats ; Rats, Sprague-Dawley ; Signal Transduction ; Stereoisomerism
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    Sensitization to morphine induced by viral-mediated gene transfer (1997)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1997-08-08
    Description: Repeated administration of morphine sensitizes animals to the stimulant and rewarding properties of the drug. It also selectively increases expression of GluR1 (an AMPA glutamate receptor subunit) in the ventral tegmental area, a midbrain region implicated in morphine action. By viral-mediated gene transfer, a causal relation is shown between these behavioral and biochemical adaptations: Morphine's stimulant and rewarding properties are intensified after microinjections of a viral vector expressing GluR1 into the ventral tegmental area. These results confirm the importance of AMPA receptors in morphine action and demonstrate specific locomotor and motivational adaptations resulting from altered expression of a single localized gene product.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Carlezon, W A Jr -- Boundy, V A -- Haile, C N -- Lane, S B -- Kalb, R G -- Neve, R L -- Nestler, E J -- New York, N.Y. -- Science. 1997 Aug 8;277(5327):812-4.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Psychiatry, Yale University School of Medicine, Connecticut Mental Health Center, 34 Park Street, New Haven, CT 06508, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/9242609" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Calcium/metabolism ; Conditioning, Classical ; *Gene Transfer Techniques ; Genetic Vectors ; Injections, Subcutaneous ; Male ; Morphine/administration & dosage/*pharmacology ; Motor Activity/drug effects ; Rats ; Rats, Sprague-Dawley ; Receptors, AMPA/*genetics/*physiology ; Reward ; Simplexvirus/genetics ; Transgenes ; Tyrosine 3-Monooxygenase/metabolism ; Up-Regulation ; Ventral Tegmental Area/*drug effects/metabolism
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    Marijuana addiction (1997)
    American Association for the Advancement of Science (AAAS)
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    Publication Date: 1997-08-08
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Grinspoon, L -- Bakalar, J B -- Zimmer, L -- Morgan, J P -- New York, N.Y. -- Science. 1997 Aug 8;277(5327):749; author reply 750-2.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/9273692" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; *Cannabis ; Dopamine/metabolism ; Dronabinol/antagonists & inhibitors/pharmacology ; Humans ; Nucleus Accumbens/drug effects/metabolism ; Rats ; Reward ; Substance Withdrawal Syndrome ; *Substance-Related Disorders
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    Repair of adult rat corticospinal tract by transplants of olfactory ensheathing cells (1997)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1997-09-26
    Description: The upper cervical corticospinal tract was transected on one side in adult rats. A suspension of ensheathing cells cultured from adult rat olfactory bulb was injected into the lesion site. This induced unbranched, elongative growth of the cut corticospinal axons. The axons grew through the transplant and continued to regenerate into the denervated caudal host tract. Rats with complete transections and no transplanted cells did not use the forepaw on the lesioned side for directed reaching. Rats in which the transplanted cells had formed a continuous bridge across the lesion exhibited directed forepaw reaching on the lesioned side.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Li, Y -- Field, P M -- Raisman, G -- New York, N.Y. -- Science. 1997 Sep 26;277(5334):2000-2.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉The Norman and Sadie Lee Research Centre, Division of Neurobiology, National Institute for Medical Research, Medical Research Council, London NW7 1AA, UK.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/9302296" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Axons/*physiology/ultrastructure ; Brain Tissue Transplantation ; Cell Transplantation ; Cells, Cultured ; Denervation ; Female ; Microscopy, Electron ; Myelin Sheath/physiology ; *Nerve Regeneration ; Neuroglia/physiology/*transplantation/ultrastructure ; Olfactory Bulb/*cytology ; Olfactory Nerve/*cytology ; Rats ; Spinal Cord/*physiology ; Spinal Cord Injuries/*surgery
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    Measuring serotonin distribution in live cells with three-photon excitation (1997)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1997-01-24
    Description: Tryptophan and serotonin were imaged with infrared illumination by three-photon excitation (3PE) of their native ultraviolet (UV) fluorescence. This technique, established by 3PE cross section measurements of tryptophan and the monoamines serotonin and dopamine, circumvents the limitations imposed by photodamage, scattering, and indiscriminate background encountered in other UV microscopies. Three-dimensionally resolved images are presented along with measurements of the serotonin concentration ( approximately 50 mM) and content (up to approximately 5 x 10(8) molecules) of individual secretory granules.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Maiti, S -- Shear, J B -- Williams, R M -- Zipfel, W R -- Webb, W W -- RR04224/RR/NCRR NIH HHS/ -- RR07719/RR/NCRR NIH HHS/ -- New York, N.Y. -- Science. 1997 Jan 24;275(5299):530-2.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉School of Applied and Engineering Physics, Cornell University, Ithaca, NY 14853, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/8999797" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Cell Survival ; Cytoplasmic Granules/*chemistry ; Dopamine/analysis ; Lasers ; Microscopy, Fluorescence/instrumentation/*methods ; Photochemistry ; *Photons ; Rats ; Serotonin/*analysis ; Tryptophan/analysis ; Tumor Cells, Cultured ; Ultraviolet Rays
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    Regulation of synaptic efficacy by coincidence of postsynaptic APs and EPSPs (1997)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1997-01-10
    Description: Activity-driven modifications in synaptic connections between neurons in the neocortex may occur during development and learning. In dual whole-cell voltage recordings from pyramidal neurons, the coincidence of postsynaptic action potentials (APs) and unitary excitatory postsynaptic potentials (EPSPs) was found to induce changes in EPSPs. Their average amplitudes were differentially up- or down-regulated, depending on the precise timing of postsynaptic APs relative to EPSPs. These observations suggest that APs propagating back into dendrites serve to modify single active synaptic connections, depending on the pattern of electrical activity in the pre- and postsynaptic neurons.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Markram, H -- Lubke, J -- Frotscher, M -- Sakmann, B -- New York, N.Y. -- Science. 1997 Jan 10;275(5297):213-5.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Max-Planck-Institut fur Medizinische Forschung, Abteilung Zellphysiologie, Jahnstrasse 29, D-69120 Heidelberg, Germany. bnmark@weizmann.weizmann.ac.il〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/8985014" target="_blank"〉PubMed〈/a〉
    Keywords: Action Potentials ; Animals ; Calcium/metabolism ; Cerebral Cortex/cytology/physiology ; Dendrites/*physiology ; Down-Regulation ; Electric Stimulation ; In Vitro Techniques ; Patch-Clamp Techniques ; Pyramidal Cells/*physiology ; Rats ; Rats, Wistar ; Receptors, N-Methyl-D-Aspartate/metabolism ; Synapses/*physiology ; *Synaptic Transmission ; Time Factors ; Up-Regulation
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    An NGF-TrkA-mediated retrograde signal to transcription factor CREB in sympathetic neurons (1997)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1997-08-22
    Description: Nerve growth factor (NGF) is a neurotrophic factor secreted by cells that are the targets of innervation of sympathetic and some sensory neurons. However, the mechanism by which the NGF signal is propagated from the axon terminal to the cell body, which can be more than 1 meter away, to influence biochemical events critical for growth and survival of neurons has remained unclear. An NGF-mediated signal transmitted from the terminals and distal axons of cultured rat sympathetic neurons to their nuclei regulated phosphorylation of the transcription factor CREB (cyclic adenosine monophosphate response element-binding protein). Internalization of NGF and its receptor tyrosine kinase TrkA, and their transport to the cell body, were required for transmission of this signal. The tyrosine kinase activity of TrkA was required to maintain it in an autophosphorylated state upon its arrival in the cell body and for propagation of the signal to CREB within neuronal nuclei. Thus, an NGF-TrkA complex is a messenger that delivers the NGF signal from axon terminals to cell bodies of sympathetic neurons.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Riccio, A -- Pierchala, B A -- Ciarallo, C L -- Ginty, D D -- New York, N.Y. -- Science. 1997 Aug 22;277(5329):1097-100.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Neuroscience, Johns Hopkins University School of Medicine, 725 North Wolfe Street, Baltimore, MD 21205, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/9262478" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Animals, Newborn ; *Axonal Transport ; Axons/*metabolism ; Carbazoles/pharmacology ; Cell Membrane/metabolism ; Cells, Cultured ; Cyclic AMP Response Element-Binding Protein/*metabolism ; Indole Alkaloids ; Microspheres ; Nerve Growth Factors/*metabolism/pharmacology ; Neurons/*metabolism ; Phosphorylation ; Proto-Oncogene Proteins/antagonists & inhibitors/*metabolism ; Rats ; Receptor Protein-Tyrosine Kinases/antagonists & inhibitors/*metabolism ; Receptor, trkA ; Receptors, Nerve Growth Factor/antagonists & inhibitors/*metabolism ; Signal Transduction ; Superior Cervical Ganglion/cytology
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    Requirement for the CD95 receptor-ligand pathway in c-Myc-induced apoptosis (1997)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1997-11-21
    Description: Induction of apoptosis by oncogenes like c-myc may be important in restraining the emergence of neoplasia. However, the mechanism by which c-myc induces apoptosis is unknown. CD95 (also termed Fas or APO-1) is a cell surface transmembrane receptor of the tumor necrosis factor receptor family that activates an intrinsic apoptotic suicide program in cells upon binding either its ligand CD95L or antibody. c-myc-induced apoptosis was shown to require interaction on the cell surface between CD95 and its ligand. c-Myc acts downstream of the CD95 receptor by sensitizing cells to the CD95 death signal. Moreover, IGF-I signaling and Bcl-2 suppress c-myc-induced apoptosis by also acting downstream of CD95. These findings link two apoptotic pathways previously thought to be independent and establish the dependency of Myc on CD95 signaling for its killing activity.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Hueber, A O -- Zornig, M -- Lyon, D -- Suda, T -- Nagata, S -- Evan, G I -- New York, N.Y. -- Science. 1997 Nov 14;278(5341):1305-9.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Imperial Cancer Research Fund (ICRF) Laboratories, 44 Lincoln's Inn Fields, London WC2A 3PX, UK.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/9360929" target="_blank"〉PubMed〈/a〉
    Keywords: 3T3 Cells ; *Adaptor Proteins, Signal Transducing ; Animals ; Antigens, CD95/*metabolism ; *Apoptosis ; Autocrine Communication ; Carrier Proteins/metabolism ; Cell Line ; Cell Membrane/metabolism ; Cells, Cultured ; Fas Ligand Protein ; Fas-Associated Death Domain Protein ; Gene Expression Regulation ; Genes, myc ; Insulin-Like Growth Factor I/pharmacology/physiology ; Membrane Glycoproteins/*metabolism ; Mice ; Proto-Oncogene Proteins c-bcl-2/pharmacology/physiology ; Proto-Oncogene Proteins c-myc/*metabolism ; Rats
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    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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    Good pain, bad pain (1997)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1997-10-27
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Iadarola, J M -- Caudle, R M -- New York, N.Y. -- Science. 1997 Oct 10;278(5336):239-40.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Pain and Neurosensory Mechanisms Branch, National Institute of Dental Research, NIH, Bethesda, MD 20892-4410, USA. iadarola@yoda.nidr.nih.gov〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/9340772" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Gene Expression Regulation ; Humans ; Hyperalgesia/physiopathology/*therapy ; *Immunotoxins ; Isoenzymes/genetics/*metabolism ; Mice ; Mutation ; *N-Glycosyl Hydrolases ; Neuronal Plasticity ; Neurons/*metabolism/pathology ; Pain/physiopathology ; *Pain Management ; Plant Proteins/*administration & dosage ; Protein Kinase C/genetics/*metabolism ; Rats ; Receptors, Neurokinin-1/biosynthesis ; Ribosome Inactivating Proteins, Type 1 ; Signal Transduction ; Spinal Cord ; Substance P/administration & dosage
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    Maternal care, hippocampal glucocorticoid receptors, and hypothalamic-pituitary-adrenal responses to stress (1997)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1997-09-12
    Description: Variations in maternal care affect the development of individual differences in neuroendocrine responses to stress in rats. As adults, the offspring of mothers that exhibited more licking and grooming of pups during the first 10 days of life showed reduced plasma adrenocorticotropic hormone and corticosterone responses to acute stress, increased hippocampal glucocorticoid receptor messenger RNA expression, enhanced glucocorticoid feedback sensitivity, and decreased levels of hypothalamic corticotropin-releasing hormone messenger RNA. Each measure was significantly correlated with the frequency of maternal licking and grooming (all r's 〉 -0.6). These findings suggest that maternal behavior serves to "program" hypothalamic-pituitary-adrenal responses to stress in the offspring.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Liu, D -- Diorio, J -- Tannenbaum, B -- Caldji, C -- Francis, D -- Freedman, A -- Sharma, S -- Pearson, D -- Plotsky, P M -- Meaney, M J -- New York, N.Y. -- Science. 1997 Sep 12;277(5332):1659-62.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Developmental Neuroendocrinology Laboratory, Douglas Hospital Research Center, McGill University, Montreal, Canada H4H 1R3.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/9287218" target="_blank"〉PubMed〈/a〉
    Keywords: Adrenocorticotropic Hormone/blood ; Animals ; Animals, Newborn ; Corticosterone/blood/pharmacology ; Corticotropin-Releasing Hormone/genetics ; Feedback ; Female ; Gene Expression Regulation ; Grooming ; Handling (Psychology) ; Hippocampus/*physiology ; Hypothalamo-Hypophyseal System/*physiology ; *Maternal Behavior ; Pituitary-Adrenal System/*physiology ; RNA, Messenger/genetics/metabolism ; Rats ; Receptors, Glucocorticoid/genetics/*metabolism ; Stress, Physiological/*physiopathology
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    Synaptic depression and cortical gain control (1997)
    American Association for the Advancement of Science (AAAS)
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    Publication Date: 1997-01-10
    Description: Cortical neurons receive synaptic inputs from thousands of afferents that fire action potentials at rates ranging from less than 1 hertz to more than 200 hertz. Both the number of afferents and their large dynamic range can mask changes in the spatial and temporal pattern of synaptic activity, limiting the ability of a cortical neuron to respond to its inputs. Modeling work based on experimental measurements indicates that short-term depression of intracortical synapses provides a dynamic gain-control mechanism that allows equal percentage rate changes on rapidly and slowly firing afferents to produce equal postsynaptic responses. Unlike inhibitory and adaptive mechanisms that reduce responsiveness to all inputs, synaptic depression is input-specific, leading to a dramatic increase in the sensitivity of a neuron to subtle changes in the firing patterns of its afferents.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Abbott, L F -- Varela, J A -- Sen, K -- Nelson, S B -- New York, N.Y. -- Science. 1997 Jan 10;275(5297):220-4.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Volen Center, Brandeis University, Waltham, MA 02254, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/8985017" target="_blank"〉PubMed〈/a〉
    Keywords: Action Potentials ; Animals ; Electric Stimulation ; In Vitro Techniques ; *Models, Neurological ; Neuronal Plasticity ; Neurons/*physiology ; Neurons, Afferent/physiology ; Rats ; Synapses/*physiology ; *Synaptic Transmission ; Visual Cortex/physiology
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    Prevention of vascular and neural dysfunction in diabetic rats by C-peptide (1997)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1997-07-25
    Description: C-peptide, a cleavage product from the processing of proinsulin to insulin, has been considered to possess little if any biological activity other than its participation in insulin synthesis. Injection of human C-peptide prevented or attenuated vascular and neural (electrophysiological) dysfunction and impaired Na+- and K+-dependent adenosine triphosphate activity in tissues of diabetic rats. Nonpolar amino acids in the midportion of the peptide were required for these biological effects. Synthetic reverse sequence (retro) and all-D-amino acid (enantio) C-peptides were equipotent to native C-peptide, which indicates that the effects of C-peptide on diabetic vascular and neural dysfunction were mediated by nonchiral interactions instead of stereospecific receptors or binding sites.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Ido, Y -- Vindigni, A -- Chang, K -- Stramm, L -- Chance, R -- Heath, W F -- DiMarchi, R D -- Di Cera, E -- Williamson, J R -- EY 06600/EY/NEI NIH HHS/ -- HL 39934/HL/NHLBI NIH HHS/ -- HL 58141/HL/NHLBI NIH HHS/ -- etc. -- New York, N.Y. -- Science. 1997 Jul 25;277(5325):563-6.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Pathology, Washington University School of Medicine, 660 South Euclid Avenue, St. Louis, MO 63110, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/9228006" target="_blank"〉PubMed〈/a〉
    Keywords: Amino Acid Sequence ; Animals ; Blood Circulation/drug effects ; Blood Glucose/metabolism ; C-Peptide/*chemistry/pharmacology/*therapeutic use ; Capillary Permeability/drug effects ; Circular Dichroism ; Diabetes Mellitus, Experimental/drug therapy/physiopathology ; Diabetic Angiopathies/*prevention & control ; Diabetic Neuropathies/*prevention & control ; Humans ; Male ; Molecular Sequence Data ; Neural Conduction/drug effects ; Peptide Fragments/pharmacology ; Protein Structure, Secondary ; Rats ; Rats, Sprague-Dawley ; Sodium-Potassium-Exchanging ATPase/metabolism ; Stereoisomerism
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    Activation of corticotropin-releasing factor in the limbic system during cannabinoid withdrawal (1997)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1997-06-27
    Description: Corticotropin-releasing factor (CRF) has been implicated in the mediation of the stress-like and negative affective consequences of withdrawal from drugs of abuse, such as alcohol, cocaine, and opiates. This study sought to determine whether brain CRF systems also have a role in cannabinoid dependence. Rats were treated daily for 2 weeks with the potent synthetic cannabinoid HU-210. Withdrawal, induced by the cannabinoid antagonist SR 141716A, was accompanied by a marked elevation in extracellular CRF concentration and a distinct pattern of Fos activation in the central nucleus of the amygdala. Maximal increases in CRF corresponded to the time when behavioral signs resulting from cannabinoid withdrawal were at a maximum. These data suggest that long-term cannabinoid administration alters CRF function in the limbic system of the brain, in a manner similar to that observed with other drugs of abuse, and also induces neuroadaptive processes that may result in future vulnerability to drug dependence.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Rodriguez de Fonseca, F -- Carrera, M R -- Navarro, M -- Koob, G F -- Weiss, F -- DA 08426/DA/NIDA NIH HHS/ -- DK26741/DK/NIDDK NIH HHS/ -- New York, N.Y. -- Science. 1997 Jun 27;276(5321):2050-4.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Instituto Complutense de Drogodependencias, Departamento de Psicobiologia, Facultad de Psicologia, Universidad Complutense de Madrid, 28223 Madrid, Spain.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/9197270" target="_blank"〉PubMed〈/a〉
    Keywords: Amygdala/drug effects/*metabolism ; Animals ; Anxiety/chemically induced ; Behavior, Animal/drug effects ; Brain/drug effects/*metabolism ; Corticosterone/blood ; Corticotropin-Releasing Hormone/*metabolism ; Dronabinol/adverse effects/*analogs & derivatives/antagonists & ; inhibitors/pharmacology ; Male ; Microdialysis ; Piperidines/pharmacology ; Proto-Oncogene Proteins c-fos/analysis ; Pyrazoles/pharmacology ; Rats ; Rats, Wistar ; Receptors, Cannabinoid ; Receptors, Drug/antagonists & inhibitors ; Substance Withdrawal Syndrome/metabolism
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    Paradoxical improvement of impulse conduction in cardiac tissue by partial cellular uncoupling (1997)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1997-02-07
    Description: Generally, impulse propagation in cardiac tissue is assumed to be impaired by a reduction of intercellular electrical coupling or by the presence of structural discontinuities. Contrary to this notion, the spatially uniform reduction of electrical coupling induced successful conduction in discontinuous cardiac tissue structures exhibiting unidirectional conduction block. This seemingly paradoxical finding can be explained by a nonsymmetric effect of uncoupling on the current source and the current sink in the preparations used. It suggests that partial cellular uncoupling might prevent the initiation of cardiac arrhythmias that are dependent on the presence of unidirectional conduction block.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Rohr, S -- Kucera, J P -- Fast, V G -- Kleber, A G -- New York, N.Y. -- Science. 1997 Feb 7;275(5301):841-4.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Physiology, University of Bern, Buhlplatz 5, CH-3012 Bern, Switzerland. rohr@pyl.unibe.ch〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/9012353" target="_blank"〉PubMed〈/a〉
    Keywords: Action Potentials ; Animals ; Arrhythmias, Cardiac/physiopathology ; Cells, Cultured ; Diffusion ; Fatty Acids, Monounsaturated/pharmacology ; Gap Junctions/physiology ; Heart/*physiology ; Heart Conduction System/*physiology ; Microscopy, Video ; Rats
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    Neuroscience. More than just frequency detectors? (1997)
    American Association for the Advancement of Science (AAAS)
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    Publication Date: 1997-01-10
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Thomson, A M -- New York, N.Y. -- Science. 1997 Jan 10;275(5297):179-80.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Physiology, Royal Free Hospital School of Medicine, London NW3 2PF, UK. alext@rfhsm.ac.uk〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/8999547" target="_blank"〉PubMed〈/a〉
    Keywords: Action Potentials ; Animals ; Dendrites/physiology ; Interneurons/physiology ; *Models, Neurological ; Neurotransmitter Agents/metabolism ; Probability ; Pyramidal Cells/*physiology ; Rats ; Synapses/*physiology ; *Synaptic Transmission
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    Evolution of a strain of CJD that induces BSE-like plaques (1997)
    American Association for the Advancement of Science (AAAS)
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    Publication Date: 1997-07-04
    Description: Bovine spongiform encephalopathy (BSE) has become a public health issue because a recently evolved BSE agent has infected people, yielding an unusual form of Creutzfeld-Jakob disease (CJD). A new CJD agent that provokes similar amyloid plaques and cerebellar pathology was serially propagated. First-passage rats showed obvious clinical signs and activated microglia but had negligible PrP-res (the more protease-resistant form of host PrP) or cerebellar lesions. Microglia and astrocytes may participate in strain selection because the agent evolved, stabilized, and reproducibly provoked BSE-like disease in subsequent passages. Early vacuolar change involving activated microglia and astrocytes preceded significant PrP-res accumulation by more than 50 days. These studies reveal several inflammatory host reactions to an exogenous agent.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Manuelidis, L -- Fritch, W -- Xi, Y G -- NS12674/NS/NINDS NIH HHS/ -- NS34569/NS/NINDS NIH HHS/ -- New York, N.Y. -- Science. 1997 Jul 4;277(5322):94-8.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Section of Neuropathology, Yale Medical School, 310 Cedar Street, New Haven, CT 06510, USA. laura.manuelidis@yale.edu〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/9204907" target="_blank"〉PubMed〈/a〉
    Keywords: Amyloid beta-Protein Precursor/analysis ; Animals ; Astrocytes/chemistry/*ultrastructure ; Brain/*pathology ; Brain Chemistry ; Cerebellum/chemistry/pathology ; Clusterin ; Creutzfeldt-Jakob Syndrome/metabolism/*pathology ; Cricetinae ; Cricetulus ; Encephalopathy, Bovine Spongiform/metabolism/*pathology ; Glial Fibrillary Acidic Protein/genetics/metabolism ; Glycoproteins/analysis ; Inflammation ; Macrophages/chemistry/ultrastructure ; Mice ; Mice, Inbred Strains ; Microglia/chemistry/*ultrastructure ; Microscopy, Electron ; *Molecular Chaperones ; PrPSc Proteins/*analysis/pathogenicity ; RNA/metabolism ; Rats ; Rats, Sprague-Dawley ; Time Factors ; Ubiquitins/analysis ; Vacuoles/ultrastructure ; Virulence
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    Interactions between epithelial cells and bacteria, normal and pathogenic (1997)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1997-05-09
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Umesaki, Y -- Okada, Y -- Imaoka, A -- Setoyama, H -- Matsumoto, S -- New York, N.Y. -- Science. 1997 May 9;276(5314):964-5.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/9139662" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Bacteroides/physiology ; Enzyme Induction ; Fucosyltransferases/biosynthesis/metabolism ; G(M1) Ganglioside/biosynthesis ; Germ-Free Life ; Gram-Positive Bacteria/*physiology ; Histocompatibility Antigens Class II/biosynthesis ; Intestinal Mucosa/cytology/immunology/metabolism/*microbiology ; Intestine, Small/cytology/immunology/metabolism/*microbiology ; Lymphocytes/cytology ; Mice ; Rats
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    Inhibition of hyperalgesia by ablation of lamina I spinal neurons expressing the substance P receptor (1997)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1997-10-10
    Description: Substance P is released in the spinal cord in response to painful stimuli, but its role in nociceptive signaling remains unclear. When a conjugate of substance P and the ribosome-inactivating protein saporin was infused into the spinal cord, it was internalized and cytotoxic to lamina I spinal cord neurons that express the substance P receptor. This treatment left responses to mild noxious stimuli unchanged, but markedly attenuated responses to highly noxious stimuli and mechanical and thermal hyperalgesia. Thus, lamina I spinal cord neurons that express the substance P receptor play a pivotal role in the transmission of highly noxious stimuli and the maintenance of hyperalgesia.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Mantyh, P W -- Rogers, S D -- Honore, P -- Allen, B J -- Ghilardi, J R -- Li, J -- Daughters, R S -- Lappi, D A -- Wiley, R G -- Simone, D A -- MH56368/MH/NIMH NIH HHS/ -- NS23970/NS/NINDS NIH HHS/ -- NS31223/NS/NINDS NIH HHS/ -- New York, N.Y. -- Science. 1997 Oct 10;278(5336):275-9.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Molecular Neurobiology Laboratory (151), Veterans Administration Medical Center, Minneapolis, MN 55417, USA. manty001@maroon.tc.umn.edu〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/9323204" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Capsaicin ; Cell Membrane/metabolism ; Cells, Cultured ; Fluorescent Antibody Technique ; Hyperalgesia/physiopathology/*therapy ; *Immunotoxins ; Injections, Spinal ; *N-Glycosyl Hydrolases ; Neurons/cytology/*metabolism ; Pain/physiopathology ; *Pain Management ; Pain Measurement ; Plant Proteins/metabolism/pharmacology ; Rats ; Rats, Sprague-Dawley ; Receptors, Neurokinin-1/biosynthesis/*metabolism ; Ribosome Inactivating Proteins, Type 1 ; Signal Transduction ; Spinal Cord/*cytology/metabolism ; Substance P/*metabolism/pharmacology
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    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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    Cancer chemopreventive activity of resveratrol, a natural product derived from grapes (1997)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1997-01-10
    Description: Resveratrol, a phytoalexin found in grapes and other food products, was purified and shown to have cancer chemopreventive activity in assays representing three major stages of carcinogenesis. Resveratrol was found to act as an antioxidant and antimutagen and to induce phase II drug-metabolizing enzymes (anti-initiation activity); it mediated anti-inflammatory effects and inhibited cyclooxygenase and hydroperoxidase functions (antipromotion activity); and it induced human promyelocytic leukemia cell differentiation (antiprogression activity). In addition, it inhibited the development of preneoplastic lesions in carcinogen-treated mouse mammary glands in culture and inhibited tumorigenesis in a mouse skin cancer model. These data suggest that resveratrol, a common constituent of the human diet, merits investigation as a potential cancer chemopreventive agent in humans.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Jang, M -- Cai, L -- Udeani, G O -- Slowing, K V -- Thomas, C F -- Beecher, C W -- Fong, H H -- Farnsworth, N R -- Kinghorn, A D -- Mehta, R G -- Moon, R C -- Pezzuto, J M -- P01 CA48112/CA/NCI NIH HHS/ -- New York, N.Y. -- Science. 1997 Jan 10;275(5297):218-20.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Medicinal Chemistry and Pharmacognosy, College of Pharmacy, University of Illinois at Chicago, Chicago, IL 60612, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/8985016" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Anti-Inflammatory Agents, Non-Steroidal/pharmacology/therapeutic use ; Anticarcinogenic Agents/*pharmacology/therapeutic use ; Antimutagenic Agents/pharmacology ; Carcinogens ; Cell Differentiation/drug effects ; Cyclooxygenase 1 ; Cyclooxygenase Inhibitors/pharmacology/therapeutic use ; Female ; Fruit/*chemistry ; Humans ; Inflammation/drug therapy ; Isoenzymes/metabolism ; Mammary Neoplasms, Experimental/chemically induced/prevention & control ; Membrane Proteins ; Mice ; Neoplasms, Experimental/*prevention & control ; Peroxidases/antagonists & inhibitors ; Precancerous Conditions/prevention & control ; Prostaglandin-Endoperoxide Synthases/metabolism ; Rats ; Rats, Wistar ; Skin Neoplasms/chemically induced/prevention & control ; Stilbenes/*pharmacology/therapeutic use ; Tumor Cells, Cultured
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    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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    Interdomain interactions underlying activation of cyclic nucleotide-gated channels (1997)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1997-10-06
    Description: Cyclic nucleotide-gated (CNG) ion channels are multimeric proteins that activate in response to the binding of cyclic nucleotide to intracellular domains. Here, an intramolecular protein-protein interaction between the amino-terminal domain and the carboxyl-terminal ligand-binding domain of the rat olfactory CNG channel was shown to exert an autoexcitatory effect on channel activation. Calcium-calmodulin, which modulates CNG channel activity during odorant adaptation, blocked this interaction. A specific deletion within the amino-terminal domain disrupted the interdomain interaction in vitro and altered the gating properties and calmodulin sensitivity of expressed channels. Thus, the amino-terminal domain may promote channel opening by directly interacting with the carboxyl-terminal gating machinery; calmodulin regulates channel activity by targeting this interaction.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Varnum, M D -- Zagotta, W N -- EY 10329/EY/NEI NIH HHS/ -- R01 EY010329/EY/NEI NIH HHS/ -- New York, N.Y. -- Science. 1997 Oct 3;278(5335):110-3.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Physiology and Biophysics, and Howard Hughes Medical Institute, Box 357370, University of Washington School of Medicine, Seattle, WA 98195, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/9311913" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Calcium/pharmacology ; Calmodulin/pharmacology ; Cyclic AMP/metabolism ; Cyclic GMP/metabolism ; Cyclic Nucleotide-Gated Cation Channels ; *Ion Channel Gating ; Ion Channels/*metabolism ; Ligands ; Olfactory Receptor Neurons/*metabolism ; Patch-Clamp Techniques ; Rats ; Recombinant Fusion Proteins/metabolism ; Retinal Rod Photoreceptor Cells/metabolism ; Xenopus
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    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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    Elementary calcium-release units induced by inositol trisphosphate (1997)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1997-06-13
    Description: The extent to which inositol 1,4,5-trisphosphate (InsP3)-induced calcium signals are localized is a critical parameter for understanding the mechanism of effector activation. The spatial characteristics of InsP3-mediated calcium signals were determined by targeting a dextran-based calcium indicator to intracellular membranes through the in situ addition of a geranylgeranyl lipid group. Elementary calcium-release events observed with this indicator typically lasted less than 33 milliseconds, had diameters less than 2 micrometers, and were uncoupled from each other by the calcium buffer EGTA. Cellwide calcium transients are likely to result from synchronized triggering of such local release events, suggesting that calcium-dependent effector proteins could be selectively activated by localization near sites of local calcium release.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Horne, J H -- Meyer, T -- GM-51457/GM/NIGMS NIH HHS/ -- P01-HL-47053/HL/NHLBI NIH HHS/ -- R01-GM-48113/GM/NIGMS NIH HHS/ -- New York, N.Y. -- Science. 1997 Jun 13;276(5319):1690-3.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Cell Biology, Duke University Medical Center, Durham, NC 27710, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/9180077" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Calcium/*metabolism ; Calcium Channels/metabolism ; Cytosol/metabolism ; Egtazic Acid/pharmacology ; Electroporation ; Fluorescent Dyes ; Inositol 1,4,5-Trisphosphate/*pharmacology ; Intracellular Membranes/*metabolism ; Kinetics ; Microscopy, Confocal ; Microscopy, Fluorescence ; Organic Chemicals ; Peptides/metabolism ; Rats ; Signal Transduction ; Tumor Cells, Cultured
    Print ISSN: 0036-8075
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    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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    Requirement of NF-kappaB activation to suppress p53-independent apoptosis induced by oncogenic Ras (1997)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1997
    Description: The ras proto-oncogene is frequently mutated in human tumors and functions to chronically stimulate signal transduction cascades resulting in the synthesis or activation of specific transcription factors, including Ets, c-Myc, c-Jun, and nuclear factor kappa B (NF-kappaB). These Ras-responsive transcription factors are required for transformation, but the mechanisms by which these proteins facilitate oncogenesis have not been fully established. Oncogenic Ras was shown to initiate a p53-independent apoptotic response that was suppressed through the activation of NF-kappaB. These results provide an explanation for the requirement of NF-kappaB for Ras-mediated oncogenesis and provide evidence that Ras-transformed cells are susceptible to apoptosis even if they do not express the p53 tumor-suppressor gene product.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Mayo, M W -- Wang, C Y -- Cogswell, P C -- Rogers-Graham, K S -- Lowe, S W -- Der, C J -- Baldwin, A S Jr -- CA13106/CA/NCI NIH HHS/ -- CA52072/CA/NCI NIH HHS/ -- CA72771/CA/NCI NIH HHS/ -- etc. -- New York, N.Y. -- Science. 1997 Dec 5;278(5344):1812-5.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Lineberger Comprehensive Cancer Center, University of North Carolina School of Medicine, Chapel Hill, NC 27599, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/9388187" target="_blank"〉PubMed〈/a〉
    Keywords: 3T3 Cells ; Adenovirus E1A Proteins/genetics/metabolism ; Animals ; *Apoptosis ; Cell Line, Transformed ; Cell Survival ; *Cell Transformation, Neoplastic ; *Gene Expression Regulation, Neoplastic ; *Genes, p53 ; *Genes, ras ; Mice ; NF-kappa B/*metabolism ; Rats ; Transfection ; Tumor Suppressor Protein p53/physiology
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    Putative cancer gene shows up in development instead (1997)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1997-04-25
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Roush, W -- New York, N.Y. -- Science. 1997 Apr 25;276(5312):534-5.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/9148413" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Axons/*physiology ; Caenorhabditis elegans/genetics/growth & development ; Cell Adhesion Molecules/*metabolism ; Central Nervous System/abnormalities/embryology/*growth & development ; Chromosomes, Human, Pair 18 ; Colorectal Neoplasms/genetics ; *Genes, DCC ; Humans ; Mice ; Nerve Growth Factors/*metabolism ; Rats ; Receptors, Cell Surface/*metabolism ; Signal Transduction ; *Tumor Suppressor Proteins
    Print ISSN: 0036-8075
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    Marijuana addiction (1997)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1997-08-08
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉McGregor, I S -- New York, N.Y. -- Science. 1997 Aug 8;277(5327):749-50; author reply 750-2.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/9273693" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Anxiety ; *Cannabis ; Dopamine/*metabolism ; Dronabinol/*pharmacology ; Humans ; Nucleus Accumbens/*drug effects/metabolism ; Rats ; Reward ; *Substance-Related Disorders
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    Heat shock protein linked to stroke protection (1997)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1997-12-31
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Wickelgren, I -- New York, N.Y. -- Science. 1997 Nov 21;278(5342):1405.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/9411765" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Cell Survival ; Cerebrovascular Disorders/pathology/*prevention & control/therapy ; Corpus Striatum/pathology ; Gene Transfer Techniques ; *Genetic Therapy ; Genetic Vectors ; HSP72 Heat-Shock Proteins ; Heat-Shock Proteins/*genetics/metabolism ; Neurons/metabolism/pathology ; Rats
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    Regulation of neuronal survival by the serine-threonine protein kinase Akt (1997)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1997-01-31
    Description: A signaling pathway was delineated by which insulin-like growth factor 1 (IGF-1) promotes the survival of cerebellar neurons. IGF-1 activation of phosphoinositide 3-kinase (PI3-K) triggered the activation of two protein kinases, the serine-threonine kinase Akt and the p70 ribosomal protein S6 kinase (p70(S6K)). Experiments with pharmacological inhibitors, as well as expression of wild-type and dominant-inhibitory forms of Akt, demonstrated that Akt but not p70(S6K) mediates PI3-K-dependent survival. These findings suggest that in the developing nervous system, Akt is a critical mediator of growth factor-induced neuronal survival.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Dudek, H -- Datta, S R -- Franke, T F -- Birnbaum, M J -- Yao, R -- Cooper, G M -- Segal, R A -- Kaplan, D R -- Greenberg, M E -- DK39519/DK/NIDDK NIH HHS/ -- R01 CA18689/CA/NCI NIH HHS/ -- R01 CA43855/CA/NCI NIH HHS/ -- etc. -- New York, N.Y. -- Science. 1997 Jan 31;275(5300):661-5.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Neurology, Children's Hospital, Boston, MA 02115, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/9005851" target="_blank"〉PubMed〈/a〉
    Keywords: Androstadienes/pharmacology ; Animals ; *Apoptosis/drug effects ; Calcium-Calmodulin-Dependent Protein Kinases/metabolism ; Cell Survival/drug effects ; Cells, Cultured ; Cerebellum/cytology ; Chromones/pharmacology ; Enzyme Activation ; Enzyme Inhibitors/pharmacology ; Insulin/pharmacology ; Insulin-Like Growth Factor I/*pharmacology ; Morpholines/pharmacology ; Neurons/*cytology/drug effects/enzymology ; Phosphatidylinositol 3-Kinases ; Phosphotransferases (Alcohol Group Acceptor)/metabolism ; Protein-Serine-Threonine Kinases/*metabolism ; Proto-Oncogene Proteins/chemistry/genetics/*metabolism ; Proto-Oncogene Proteins c-akt ; Rats ; Ribosomal Protein S6 Kinases ; *Signal Transduction ; Transfection
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    Functional role of high-affinity anandamide transport, as revealed by selective inhibition (1997)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1997-08-22
    Description: Anandamide, an endogenous ligand for central cannabinoid receptors, is released from neurons on depolarization and rapidly inactivated. Anandamide inactivation is not completely understood, but it may occur by transport into cells or by enzymatic hydrolysis. The compound N-(4-hydroxyphenyl)arachidonylamide (AM404) was shown to inhibit high-affinity anandamide accumulation in rat neurons and astrocytes in vitro, an indication that this accumulation resulted from carrier-mediated transport. Although AM404 did not activate cannabinoid receptors or inhibit anandamide hydrolysis, it enhanced receptor-mediated anandamide responses in vitro and in vivo. The data indicate that carrier-mediated transport may be essential for termination of the biological effects of anandamide, and may represent a potential drug target.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Beltramo, M -- Stella, N -- Calignano, A -- Lin, S Y -- Makriyannis, A -- Piomelli, D -- New York, N.Y. -- Science. 1997 Aug 22;277(5329):1094-7.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉The Neurosciences Institute, 10640 J. J. Hopkins Drive, San Diego, CA 92121, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/9262477" target="_blank"〉PubMed〈/a〉
    Keywords: Analgesics/pharmacology ; Animals ; Arachidonic Acids/antagonists & inhibitors/*metabolism/pharmacology ; Astrocytes/drug effects/*metabolism ; Benzoxazines ; Biological Transport/drug effects ; Bromcresol Green/pharmacology ; Cannabinoids/antagonists & inhibitors/*metabolism/pharmacology ; Cells, Cultured ; Colforsin/pharmacology ; Cyclic AMP/metabolism ; Endocannabinoids ; Male ; Mice ; Morpholines/pharmacology ; Naphthalenes/pharmacology ; Neurons/drug effects/*metabolism ; Piperidines/pharmacology ; Polyunsaturated Alkamides ; Pyrazoles/pharmacology ; Rats ; Receptors, Cannabinoid ; Receptors, Drug/agonists/metabolism
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    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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    Differential ligand activation of estrogen receptors ERalpha and ERbeta at AP1 sites (1997)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1997-09-05
    Description: The transactivation properties of the two estrogen receptors, ERalpha and ERbeta, were examined with different ligands in the context of an estrogen response element and an AP1 element. ERalpha and ERbeta were shown to signal in opposite ways when complexed with the natural hormone estradiol from an AP1 site: with ERalpha, 17beta-estradiol activated transcription, whereas with ERbeta, 17beta-estradiol inhibited transcription. Moreover, the antiestrogens tamoxifen, raloxifene, and Imperial Chemical Industries 164384 were potent transcriptional activators with ERbeta at an AP1 site. Thus, the two ERs signal in different ways depending on ligand and response element. This suggests that ERalpha and ERbeta may play different roles in gene regulation.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Paech, K -- Webb, P -- Kuiper, G G -- Nilsson, S -- Gustafsson, J -- Kushner, P J -- Scanlan, T S -- GM 50672/GM/NIGMS NIH HHS/ -- New York, N.Y. -- Science. 1997 Sep 5;277(5331):1508-10.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Pharmaceutical Chemistry, University of California, San Francisco, CA 94143-0446, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/9278514" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Breast Neoplasms/metabolism ; Cell Line ; Diethylstilbestrol/metabolism/pharmacology ; *Enhancer Elements, Genetic ; Estradiol/analogs & derivatives/metabolism/pharmacology ; Estrogen Antagonists/*pharmacology ; Estrogen Receptor alpha ; Estrogen Receptor beta ; Estrogens/*pharmacology ; Female ; HeLa Cells ; Humans ; Ligands ; Piperidines/metabolism/pharmacology ; Polyunsaturated Alkamides ; Raloxifene Hydrochloride ; Rats ; Receptors, Estrogen/*metabolism ; Tamoxifen/metabolism/pharmacology ; Transcription Factor AP-1/*genetics ; *Transcriptional Activation/drug effects ; Transfection ; Tumor Cells, Cultured ; Uterus/metabolism
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    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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    How TRAIL kills cancer cells, but not normal cells (1997)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1997-08-08
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Gura, T -- New York, N.Y. -- Science. 1997 Aug 8;277(5327):768.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/9273698" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; *Apoptosis ; Apoptosis Regulatory Proteins ; Binding Sites ; Databases, Factual ; GPI-Linked Proteins ; Humans ; Membrane Glycoproteins/*metabolism/therapeutic use ; Neoplasms/*metabolism/pathology ; Rats ; Receptors, TNF-Related Apoptosis-Inducing Ligand ; Receptors, Tumor Necrosis Factor/chemistry/*metabolism ; TNF-Related Apoptosis-Inducing Ligand ; Tumor Cells, Cultured ; Tumor Necrosis Factor Decoy Receptors ; Tumor Necrosis Factor-alpha/*metabolism/therapeutic use
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    Forward and backward propagation of dendritic impulses and their synaptic control in mitral cells (1997)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1997-10-23
    Description: The site of impulse initiation is crucial for the integrative actions of mammalian central neurons, but this question is currently controversial. Some recent studies support classical evidence that the impulse always arises in the soma-axon hillock region, with back-propagation through excitable dendrites, whereas others indicate that the dendrites are sufficiently excitable to initiate impulses that propagate forward along the dendrite to the soma-axon hillock. This issue has been addressed in the olfactory mitral cell, in which excitatory synaptic input is restricted to the distal tuft of a single primary dendrite. In rat olfactory bulb slices, dual whole cell recordings were made at or near the soma and from distal sites on the primary dendrite. The results show that the impulse can be initiated in either the soma-axon hillock or in the distal primary dendrite, and that the initiation site is controlled physiologically by the excitatory synaptic inputs to the distal tuft and inhibitory synaptic inputs near the soma.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Chen, W R -- Midtgaard, J -- Shepherd, G M -- New York, N.Y. -- Science. 1997 Oct 17;278(5337):463-7.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Section of Neurobiology, Yale University School of Medicine, New Haven, CT 06510, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/9334305" target="_blank"〉PubMed〈/a〉
    Keywords: Action Potentials ; Animals ; Dendrites/*physiology ; Electric Stimulation ; Evoked Potentials ; Excitatory Postsynaptic Potentials ; In Vitro Techniques ; Olfactory Bulb/*cytology/physiology ; Patch-Clamp Techniques ; Pyramidal Cells/*physiology ; Rats ; Rats, Sprague-Dawley ; Synapses/*physiology
    Print ISSN: 0036-8075
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    Cannabinoid and heroin activation of mesolimbic dopamine transmission by a common mu1 opioid receptor mechanism (1997)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1997-06-27
    Description: The effects of the active ingredient of Cannabis, Delta9-tetrahydrocannabinol (Delta9-THC), and of the highly addictive drug heroin on in vivo dopamine transmission in the nucleus accumbens were compared in Sprague-Dawley rats by brain microdialysis. Delta9-THC and heroin increased extracellular dopamine concentrations selectively in the shell of the nucleus accumbens; these effects were mimicked by the synthetic cannabinoid agonist WIN55212-2. SR141716A, an antagonist of central cannabinoid receptors, prevented the effects of Delta9-THC but not those of heroin. Naloxone, a generic opioid antagonist, administered systemically, or naloxonazine, an antagonist of micro1 opioid receptors, infused into the ventral tegmentum, prevented the action of cannabinoids and heroin on dopamine transmission. Thus, Delta9-THC and heroin exert similar effects on mesolimbic dopamine transmission through a common mu1 opioid receptor mechanism located in the ventral mesencephalic tegmentum.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Tanda, G -- Pontieri, F E -- Di Chiara, G -- New York, N.Y. -- Science. 1997 Jun 27;276(5321):2048-50.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Toxicology and Consiglio Nazionale delle Ricerche (CNR), Center for Neuropharmacology, University of Cagliari, Viale A. Diaz 182, 09126 Cagliari, Italy.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/9197269" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Benzoxazines ; Dopamine/*metabolism ; Dronabinol/antagonists & inhibitors/*pharmacology ; Heroin/*pharmacology ; Male ; Microdialysis ; Morpholines/antagonists & inhibitors/pharmacology ; Naloxone/analogs & derivatives/pharmacology ; Naphthalenes/antagonists & inhibitors/pharmacology ; Narcotic Antagonists/pharmacology ; Nucleus Accumbens/*drug effects/metabolism ; Piperidines/pharmacology ; Pyrazoles/pharmacology ; Rats ; Rats, Sprague-Dawley ; Receptors, Cannabinoid ; Receptors, Drug/antagonists & inhibitors/metabolism ; Receptors, Opioid, mu/antagonists & inhibitors/*metabolism
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    Dopaminergic neurons protected from degeneration by GDNF gene therapy (1997)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1997-02-07
    Description: Glial cell line-derived neurotrophic factor (GDNF) supports growth and survival of dopaminergic (DA) neurons. A replication-defective adenoviral (Ad) vector encoding human GDNF injected near the rat substantia nigra was found to protect DA neurons from the progressive degeneration induced by the neurotoxin 6-hydroxydopamine (6-OHDA) injected into the striatum. Ad GDNF gene therapy reduced loss of DA neurons approximately threefold 6 weeks after 6-OHDA lesion, as compared with no treatment or injection of Ad lacZ or Ad mGDNF (encoding a biologically inactive deletion mutant GDNF). These results suggest that Ad vector-mediated GDNF gene therapy may slow the DA neuronal cell loss in humans with Parkinson's disease.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Choi-Lundberg, D L -- Lin, Q -- Chang, Y N -- Chiang, Y L -- Hay, C M -- Mohajeri, H -- Davidson, B L -- Bohn, M C -- NS31957/NS/NINDS NIH HHS/ -- T32AG00107/AG/NIA NIH HHS/ -- New York, N.Y. -- Science. 1997 Feb 7;275(5301):838-41.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Neurobiology and Anatomy, University of Rochester, Box 603, 601 Elmwood Avenue, Rochester, NY 14642, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/9012352" target="_blank"〉PubMed〈/a〉
    Keywords: Adenoviridae/genetics ; Animals ; Corpus Striatum/metabolism/pathology ; Dopamine/*physiology ; Gene Expression ; *Genetic Therapy ; Genetic Vectors ; Glial Cell Line-Derived Neurotrophic Factor ; Humans ; Male ; Molecular Sequence Data ; *Nerve Degeneration ; *Nerve Growth Factors ; Nerve Tissue Proteins/*genetics ; Neurons/pathology/physiology ; *Neuroprotective Agents ; Oxidopamine ; PC12 Cells ; Parkinson Disease/pathology/*therapy ; Rats ; Rats, Inbred F344 ; Substantia Nigra/metabolism/pathology ; Transgenes
    Print ISSN: 0036-8075
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    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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    Synaptic efficacy enhanced by glial cells in vitro (1997)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1997-09-12
    Description: In the developing nervous system, glial cells guide axons to their target areas, but it is unknown whether they help neurons to establish functional synaptic connections. The role of glial cells in synapse formation and function was studied in cultures of purified neurons from the rat central nervous system. In glia-free cultures, retinal ganglion cells formed synapses with normal ultrastructure but displayed little spontaneous synaptic activity and high failure rates in evoked synaptic transmission. In cocultures with neuroglia, the frequency and amplitude of spontaneous postsynaptic currents were potentiated by 70-fold and 5-fold, respectively, and fewer transmission failures occurred. Glial cells increased the action potential-independent quantal release by 12-fold without affecting neuronal survival. Thus, developing neurons in culture form inefficient synapses that require glial signals to become fully functional.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Pfrieger, F W -- Barres, B A -- New York, N.Y. -- Science. 1997 Sep 12;277(5332):1684-7.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Neurobiology, Stanford University, School of Medicine, Sherman Fairchild Science Building, 299 Campus Drive, Stanford, CA 94305-5125, USA. fpfrieg@mdc-berlin.de〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/9287225" target="_blank"〉PubMed〈/a〉
    Keywords: Action Potentials ; Animals ; Astrocytes/physiology ; Cell Survival ; Cells, Cultured ; Coculture Techniques ; Microglia/physiology ; Neuroglia/*physiology ; Oligodendroglia/physiology ; Rats ; Rats, Sprague-Dawley ; Retinal Ganglion Cells/cytology/*physiology/ultrastructure ; Synapses/*physiology/ultrastructure ; *Synaptic Transmission
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    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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    Common neural substrates for the addictive properties of nicotine and cocaine (1997)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1997-01-03
    Description: Regional brain activation was assessed by mapping of Fos-related protein expression in rats trained to self-administration of intravenous nicotine and cocaine. Both drugs produced specific overlapping patterns of activation in the shell and the core of the nucleus accumbens, medial prefrontal cortex, and medial caudate areas, but not in the amygdala. Thus, the reinforcing properties of cocaine and nicotine map on selected structures of the terminal fields of the mesocorticolimbic dopamine system, supporting the idea that common substrates for these addictive drugs exist.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Pich, E M -- Pagliusi, S R -- Tessari, M -- Talabot-Ayer, D -- Hooft van Huijsduijnen, R -- Chiamulera, C -- New York, N.Y. -- Science. 1997 Jan 3;275(5296):83-6.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Geneva Biomedical Research Institute, Glaxo-Wellcome R&D, CH-1228 Geneva, Switzerland.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/8974398" target="_blank"〉PubMed〈/a〉
    Keywords: Amygdala/drug effects/metabolism ; Animals ; Brain/*drug effects/metabolism ; Brain Mapping ; Cocaine/administration & dosage/*pharmacology ; DNA/metabolism ; Neostriatum/drug effects/metabolism ; Neurons/drug effects/metabolism ; Nicotine/administration & dosage/*pharmacology ; Nucleus Accumbens/drug effects/metabolism ; Opioid-Related Disorders/*etiology ; Prefrontal Cortex/drug effects/metabolism ; Proto-Oncogene Proteins c-fos/biosynthesis ; Rats ; Reinforcement (Psychology) ; Self Administration ; Substance-Related Disorders/*etiology ; Transcription Factor AP-1/metabolism
    Print ISSN: 0036-8075
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    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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    mTOR-dependent synapse formation underlies the rapid antidepressant effects of NMDA antagonists (2010)
    American Association for the Advancement of Science (AAAS)
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    Publication Date: 2010-08-21
    Description: The rapid antidepressant response after ketamine administration in treatment-resistant depressed patients suggests a possible new approach for treating mood disorders compared to the weeks or months required for standard medications. However, the mechanisms underlying this action of ketamine [a glutamate N-methyl-D-aspartic acid (NMDA) receptor antagonist] have not been identified. We observed that ketamine rapidly activated the mammalian target of rapamycin (mTOR) pathway, leading to increased synaptic signaling proteins and increased number and function of new spine synapses in the prefrontal cortex of rats. Moreover, blockade of mTOR signaling completely blocked ketamine induction of synaptogenesis and behavioral responses in models of depression. Our results demonstrate that these effects of ketamine are opposite to the synaptic deficits that result from exposure to stress and could contribute to the fast antidepressant actions of ketamine.〈br /〉〈br /〉〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3116441/" target="_blank"〉〈img src="https://static.pubmed.gov/portal/portal3rc.fcgi/4089621/img/3977009" border="0"〉〈/a〉   〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3116441/" target="_blank"〉This paper as free author manuscript - peer-reviewed and accepted for publication〈/a〉〈br /〉〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Li, Nanxin -- Lee, Boyoung -- Liu, Rong-Jian -- Banasr, Mounira -- Dwyer, Jason M -- Iwata, Masaaki -- Li, Xiao-Yuan -- Aghajanian, George -- Duman, Ronald S -- 2P01 MH25642/MH/NIMH NIH HHS/ -- MH45481/MH/NIMH NIH HHS/ -- P01 MH025642/MH/NIMH NIH HHS/ -- P01 MH025642-30/MH/NIMH NIH HHS/ -- P01 MH025642-31/MH/NIMH NIH HHS/ -- P01 MH025642-32/MH/NIMH NIH HHS/ -- R01 MH045481/MH/NIMH NIH HHS/ -- R01 MH045481-13/MH/NIMH NIH HHS/ -- R01 MH045481-14/MH/NIMH NIH HHS/ -- R01 MH045481-15/MH/NIMH NIH HHS/ -- New York, N.Y. -- Science. 2010 Aug 20;329(5994):959-64. doi: 10.1126/science.1190287.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Laboratory of Molecular Psychiatry, Center for Genes and Behavior, Department of Psychiatry, Yale University School of Medicine, 34 Park Street, New Haven, CT 06508, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/20724638" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Antidepressive Agents/pharmacokinetics/*pharmacology ; Dendritic Spines/drug effects/metabolism ; Depression/drug therapy/metabolism ; Intracellular Signaling Peptides and Proteins/agonists ; Ketamine/pharmacokinetics/*pharmacology ; Male ; Neurons/drug effects/metabolism ; Neuropeptides/*biosynthesis/metabolism ; Phenols/pharmacology ; Piperidines/pharmacology ; Protein Biosynthesis/drug effects ; Protein-Serine-Threonine Kinases ; Rats ; Rats, Sprague-Dawley ; Receptors, N-Methyl-D-Aspartate/*antagonists & inhibitors ; Signal Transduction/drug effects ; Sirolimus/pharmacology ; Synapses/*drug effects/metabolism ; TOR Serine-Threonine Kinases ; Time Factors
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    Spiroindolones, a potent compound class for the treatment of malaria (2010)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2010-09-04
    Description: Recent reports of increased tolerance to artemisinin derivatives--the most recently adopted class of antimalarials--have prompted a need for new treatments. The spirotetrahydro-beta-carbolines, or spiroindolones, are potent drugs that kill the blood stages of Plasmodium falciparum and Plasmodium vivax clinical isolates at low nanomolar concentration. Spiroindolones rapidly inhibit protein synthesis in P. falciparum, an effect that is ablated in parasites bearing nonsynonymous mutations in the gene encoding the P-type cation-transporter ATPase4 (PfATP4). The optimized spiroindolone NITD609 shows pharmacokinetic properties compatible with once-daily oral dosing and has single-dose efficacy in a rodent malaria model.〈br /〉〈br /〉〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3050001/" target="_blank"〉〈img src="https://static.pubmed.gov/portal/portal3rc.fcgi/4089621/img/3977009" border="0"〉〈/a〉   〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3050001/" target="_blank"〉This paper as free author manuscript - peer-reviewed and accepted for publication〈/a〉〈br /〉〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Rottmann, Matthias -- McNamara, Case -- Yeung, Bryan K S -- Lee, Marcus C S -- Zou, Bin -- Russell, Bruce -- Seitz, Patrick -- Plouffe, David M -- Dharia, Neekesh V -- Tan, Jocelyn -- Cohen, Steven B -- Spencer, Kathryn R -- Gonzalez-Paez, Gonzalo E -- Lakshminarayana, Suresh B -- Goh, Anne -- Suwanarusk, Rossarin -- Jegla, Timothy -- Schmitt, Esther K -- Beck, Hans-Peter -- Brun, Reto -- Nosten, Francois -- Renia, Laurent -- Dartois, Veronique -- Keller, Thomas H -- Fidock, David A -- Winzeler, Elizabeth A -- Diagana, Thierry T -- R01 AI059472/AI/NIAID NIH HHS/ -- R01 AI059472-04/AI/NIAID NIH HHS/ -- R01 AI059472-05/AI/NIAID NIH HHS/ -- R01AI059472/AI/NIAID NIH HHS/ -- WT078285/Wellcome Trust/United Kingdom -- New York, N.Y. -- Science. 2010 Sep 3;329(5996):1175-80. doi: 10.1126/science.1193225.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Swiss Tropical and Public Health Institute, Parasite Chemotherapy, CH-4002 Basel, Switzerland.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/20813948" target="_blank"〉PubMed〈/a〉
    Keywords: Adenosine Triphosphatases/antagonists & inhibitors/chemistry/genetics/metabolism ; Animals ; Antimalarials/administration & dosage/chemistry/pharmacokinetics/*pharmacology ; Cell Line ; Drug Discovery ; Drug Resistance ; Erythrocytes/parasitology ; Female ; Genes, Protozoan ; Humans ; Indoles/administration & dosage/chemistry/pharmacokinetics/*pharmacology ; Malaria/*drug therapy/parasitology ; Male ; Mice ; Models, Molecular ; Mutant Proteins/antagonists & inhibitors/chemistry/metabolism ; Mutation ; Parasitic Sensitivity Tests ; Plasmodium berghei/*drug effects ; Plasmodium falciparum/*drug effects/genetics/growth & development ; Plasmodium vivax/*drug effects/growth & development ; Protein Synthesis Inhibitors/administration & ; dosage/chemistry/pharmacokinetics/pharmacology ; Protozoan Proteins/biosynthesis/chemistry/genetics/metabolism ; Rats ; Rats, Wistar ; Spiro Compounds/administration & dosage/chemistry/pharmacokinetics/*pharmacology
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    A gating charge transfer center in voltage sensors (2010)
    American Association for the Advancement of Science (AAAS)
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    Publication Date: 2010-04-03
    Description: Voltage sensors regulate the conformations of voltage-dependent ion channels and enzymes. Their nearly switchlike response as a function of membrane voltage comes from the movement of positively charged amino acids, arginine or lysine, across the membrane field. We used mutations with natural and unnatural amino acids, electrophysiological recordings, and x-ray crystallography to identify a charge transfer center in voltage sensors that facilitates this movement. This center consists of a rigid cyclic "cap" and two negatively charged amino acids to interact with a positive charge. Specific mutations induce a preference for lysine relative to arginine. By placing lysine at specific locations, the voltage sensor can be stabilized in different conformations, which enables a dissection of voltage sensor movements and their relation to ion channel opening.〈br /〉〈br /〉〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC2869078/" target="_blank"〉〈img src="https://static.pubmed.gov/portal/portal3rc.fcgi/4089621/img/3977009" border="0"〉〈/a〉   〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC2869078/" target="_blank"〉This paper as free author manuscript - peer-reviewed and accepted for publication〈/a〉〈br /〉〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Tao, Xiao -- Lee, Alice -- Limapichat, Walrati -- Dougherty, Dennis A -- MacKinnon, Roderick -- GM43949/GM/NIGMS NIH HHS/ -- NS 34407/NS/NINDS NIH HHS/ -- P30 EB009998/EB/NIBIB NIH HHS/ -- R01 GM043949/GM/NIGMS NIH HHS/ -- R01 GM043949-20/GM/NIGMS NIH HHS/ -- R37 NS034407/NS/NINDS NIH HHS/ -- R37 NS034407-15/NS/NINDS NIH HHS/ -- R37 NS034407-15S1/NS/NINDS NIH HHS/ -- Howard Hughes Medical Institute/ -- New York, N.Y. -- Science. 2010 Apr 2;328(5974):67-73. doi: 10.1126/science.1185954.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Laboratory of Molecular Neurobiology and Biophysics, Rockefeller University, Howard Hughes Medical Institute, 1230 York Avenue, New York, NY 10065, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/20360102" target="_blank"〉PubMed〈/a〉
    Keywords: Amino Acid Sequence ; Amino Acid Substitution ; Animals ; Arginine/chemistry ; Binding Sites ; Crystallography, X-Ray ; Electric Capacitance ; *Ion Channel Gating ; Kv1.2 Potassium Channel/*chemistry/*metabolism ; Lysine/chemistry ; Models, Molecular ; Molecular Sequence Data ; Patch-Clamp Techniques ; Phenylalanine/chemistry ; Protein Conformation ; Rats ; Recombinant Fusion Proteins/chemistry/metabolism ; Shab Potassium Channels/*chemistry/*metabolism ; Shaker Superfamily of Potassium Channels/chemistry/metabolism ; Tryptophan/chemistry ; Xenopus laevis
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    Dlg1-PTEN interaction regulates myelin thickness to prevent damaging peripheral nerve overmyelination (2010)
    American Association for the Advancement of Science (AAAS)
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    Publication Date: 2010-05-08
    Description: The thickness of the myelin sheath that insulates axons is fitted for optimal nerve conduction velocity. Here, we show that, in Schwann cells, mammalian disks large homolog 1 (Dlg1) interacts with PTEN (phosphatase and tensin homolog deleted on chromosome 10) to inhibit axonal stimulation of myelination. This mechanism limits myelin sheath thickness and prevents overmyelination in mouse sciatic nerves. Removing this brake results also in myelin outfoldings and demyelination, characteristics of some peripheral neuropathies. Indeed, the Dlg1 brake is no longer functional in a mouse model of Charcot-Marie-Tooth disease. Therefore, negative regulation of myelination appears to be essential for optimization of nerve conduction velocity and myelin maintenance.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Cotter, Laurent -- Ozcelik, Murat -- Jacob, Claire -- Pereira, Jorge A -- Locher, Veronica -- Baumann, Reto -- Relvas, Joao B -- Suter, Ueli -- Tricaud, Nicolas -- New York, N.Y. -- Science. 2010 Jun 11;328(5984):1415-8. doi: 10.1126/science.1187735. Epub 2010 May 6.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Institute of Cell Biology, Department of Biology, Eidgenossische Technische Hochschule (ETH) Zurich, CH-8093 Zurich, Switzerland.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/20448149" target="_blank"〉PubMed〈/a〉
    Keywords: Adaptor Proteins, Signal Transducing/genetics/*metabolism ; Animals ; Axons/physiology ; Coculture Techniques ; Ganglia, Spinal/cytology ; Membrane Proteins/genetics/*metabolism ; Mice ; Mice, Inbred C57BL ; Myelin Sheath/*physiology/ultrastructure ; Nerve Tissue Proteins/genetics/*metabolism ; Neural Conduction ; Neuregulin-1/metabolism ; PTEN Phosphohydrolase/*metabolism ; Proto-Oncogene Proteins c-akt/metabolism ; RNA Interference ; Rats ; Schwann Cells/*physiology ; Sciatic Nerve/physiology
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    Neuroscience. A Kantian view of space (2010)
    American Association for the Advancement of Science (AAAS)
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    Publication Date: 2010-06-19
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Palmer, Linda -- Lynch, Gary -- New York, N.Y. -- Science. 2010 Jun 18;328(5985):1487-8. doi: 10.1126/science.1191527.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Anatomy and Neurobiology, University of California, Irvine, CA 92697, USA. lcpalmer@uci.edu〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/20558692" target="_blank"〉PubMed〈/a〉
    Keywords: Aging ; Animals ; Brain Mapping ; Electrodes, Implanted ; Exploratory Behavior ; Hippocampus/cytology/*physiology ; Learning ; Long-Term Potentiation ; Nerve Net/physiology ; Neural Pathways ; Neurons/*physiology ; Orientation ; Philosophy ; Rats ; *Space Perception ; Spatial Behavior
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    The CRAC channel activator STIM1 binds and inhibits L-type voltage-gated calcium channels (2010)
    American Association for the Advancement of Science (AAAS)
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    Publication Date: 2010-10-12
    Description: Voltage- and store-operated calcium (Ca(2+)) channels are the major routes of Ca(2+) entry in mammalian cells, but little is known about how cells coordinate the activity of these channels to generate coherent calcium signals. We found that STIM1 (stromal interaction molecule 1), the main activator of store-operated Ca(2+) channels, directly suppresses depolarization-induced opening of the voltage-gated Ca(2+) channel Ca(V)1.2. STIM1 binds to the C terminus of Ca(V)1.2 through its Ca(2+) release-activated Ca(2+) activation domain, acutely inhibits gating, and causes long-term internalization of the channel from the membrane. This establishes a previously unknown function for STIM1 and provides a molecular mechanism to explain the reciprocal regulation of these two channels in cells.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Park, Chan Young -- Shcheglovitov, Aleksandr -- Dolmetsch, Ricardo -- DP1 OD003889/OD/NIH HHS/ -- DP1OD003889/OD/NIH HHS/ -- R01 NS048564/NS/NINDS NIH HHS/ -- R21MH087898/MH/NIMH NIH HHS/ -- New York, N.Y. -- Science. 2010 Oct 1;330(6000):101-5. doi: 10.1126/science.1191027.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Neurobiology, Stanford University School of Medicine, Stanford, CA 94305, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/20929812" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Calcium/metabolism ; Calcium Channels, L-Type/chemistry/genetics/*metabolism ; Calcium Signaling ; Cell Line ; Cell Membrane/*metabolism ; Humans ; Ion Channel Gating ; Jurkat Cells ; Membrane Proteins/chemistry/genetics/*metabolism ; Models, Biological ; Neoplasm Proteins/chemistry/genetics/*metabolism ; Neurons/*metabolism ; Patch-Clamp Techniques ; Protein Binding ; Protein Structure, Tertiary ; Rats ; Rats, Sprague-Dawley ; T-Lymphocytes/*metabolism
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    Cbln1 is a ligand for an orphan glutamate receptor delta2, a bidirectional synapse organizer (2010)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2010-04-17
    Description: Cbln1, secreted from cerebellar granule cells, and the orphan glutamate receptor delta2 (GluD2), expressed by Purkinje cells, are essential for synapse integrity between these neurons in adult mice. Nevertheless, no endogenous binding partners for these molecules have been identified. We found that Cbln1 binds directly to the N-terminal domain of GluD2. GluD2 expression by postsynaptic cells, combined with exogenously applied Cbln1, was necessary and sufficient to induce new synapses in vitro and in the adult cerebellum in vivo. Further, beads coated with recombinant Cbln1 directly induced presynaptic differentiation and indirectly caused clustering of postsynaptic molecules via GluD2. These results indicate that the Cbln1-GluD2 complex is a unique synapse organizer that acts bidirectionally on both pre- and postsynaptic components.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Matsuda, Keiko -- Miura, Eriko -- Miyazaki, Taisuke -- Kakegawa, Wataru -- Emi, Kyoichi -- Narumi, Sakae -- Fukazawa, Yugo -- Ito-Ishida, Aya -- Kondo, Tetsuro -- Shigemoto, Ryuichi -- Watanabe, Masahiko -- Yuzaki, Michisuke -- New York, N.Y. -- Science. 2010 Apr 16;328(5976):363-8. doi: 10.1126/science.1185152.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Physiology, School of Medicine, Keio University, Tokyo 160-8582, Japan.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/20395510" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Binding Sites ; Cell Line ; Cells, Cultured ; Cerebellum/cytology/*physiology ; Coculture Techniques ; Excitatory Postsynaptic Potentials ; Humans ; Ligands ; Mice ; Nerve Tissue Proteins/*metabolism ; Presynaptic Terminals/physiology ; Protein Binding ; Protein Interaction Domains and Motifs ; Protein Precursors/*metabolism ; Purkinje Cells/metabolism/*physiology ; Rats ; Receptors, Glutamate/chemistry/*metabolism ; Recombinant Fusion Proteins/metabolism ; Synapses/*physiology ; Synaptic Membranes/metabolism
    Print ISSN: 0036-8075
    Electronic ISSN: 1095-9203
    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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    Neuroscience. A glutamate pathway to faster-acting antidepressants? (2010)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2010-08-21
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Cryan, John F -- O'Leary, Olivia F -- New York, N.Y. -- Science. 2010 Aug 20;329(5994):913-4. doi: 10.1126/science.1194313.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉School of Pharmacy, Department of Pharmacology and Therapeutics, Alimentary Pharmabiotic Centre, University College Cork, College Road, Cork, Ireland. j.cryan@ucc.ie〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/20724626" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Antidepressive Agents/*pharmacokinetics ; Drug Synergism ; Excitatory Amino Acid Antagonists/*pharmacology/therapeutic use ; Humans ; Intracellular Signaling Peptides and Proteins/antagonists & inhibitors/metabolism ; Ketamine/*pharmacology/therapeutic use ; Protein-Serine-Threonine Kinases/antagonists & inhibitors/metabolism ; Rats ; Sirolimus/pharmacology ; Synaptic Transmission/drug effects ; TOR Serine-Threonine Kinases
    Print ISSN: 0036-8075
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    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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  • 91
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    Doc2b is a high-affinity Ca2+ sensor for spontaneous neurotransmitter release (2010)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2010-02-13
    Description: Synaptic vesicle fusion in brain synapses occurs in phases that are either tightly coupled to action potentials (synchronous), immediately following action potentials (asynchronous), or as stochastic events in the absence of action potentials (spontaneous). Synaptotagmin-1, -2, and -9 are vesicle-associated Ca2+ sensors for synchronous release. Here we found that double C2 domain (Doc2) proteins act as Ca2+ sensors to trigger spontaneous release. Although Doc2 proteins are cytosolic, they function analogously to synaptotagmin-1 but with a higher Ca2+ sensitivity. Doc2 proteins bound to N-ethylmaleimide-sensitive factor attachment receptor (SNARE) complexes in competition with synaptotagmin-1. Thus, different classes of multiple C2 domain-containing molecules trigger synchronous versus spontaneous fusion, which suggests a general mechanism for synaptic vesicle fusion triggered by the combined actions of SNAREs and multiple C2 domain-containing proteins.〈br /〉〈br /〉〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC2846320/" target="_blank"〉〈img src="https://static.pubmed.gov/portal/portal3rc.fcgi/4089621/img/3977009" border="0"〉〈/a〉   〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC2846320/" target="_blank"〉This paper as free author manuscript - peer-reviewed and accepted for publication〈/a〉〈br /〉〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Groffen, Alexander J -- Martens, Sascha -- Diez Arazola, Rocio -- Cornelisse, L Niels -- Lozovaya, Natalia -- de Jong, Arthur P H -- Goriounova, Natalia A -- Habets, Ron L P -- Takai, Yoshimi -- Borst, J Gerard -- Brose, Nils -- McMahon, Harvey T -- Verhage, Matthijs -- MC_U105178795/Medical Research Council/United Kingdom -- U.1051.02.007(78795)/Medical Research Council/United Kingdom -- Medical Research Council/United Kingdom -- New York, N.Y. -- Science. 2010 Mar 26;327(5973):1614-8. doi: 10.1126/science.1183765. Epub 2010 Feb 11.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Functional Genomics, CNCR, Neuroscience Campus Amsterdam, VU University and VU Medical Center, Amsterdam, 1081 HV, Netherlands. sander.groffen@cncr.vu.nl〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/20150444" target="_blank"〉PubMed〈/a〉
    Keywords: Action Potentials ; Animals ; Binding Sites ; Calcium/*metabolism ; Calcium-Binding Proteins/chemistry/genetics/*metabolism ; Cells, Cultured ; Excitatory Postsynaptic Potentials ; Hippocampus/cytology ; Inhibitory Postsynaptic Potentials ; Membrane Fusion ; Mice ; Mice, Knockout ; Mutant Proteins/genetics/metabolism ; Nerve Tissue Proteins/chemistry/genetics/*metabolism ; Neurons/physiology ; Neurotransmitter Agents/*metabolism ; Patch-Clamp Techniques ; Protein Structure, Tertiary ; Purkinje Cells/physiology ; Rats ; SNARE Proteins/metabolism ; *Synaptic Transmission ; Synaptic Vesicles/*physiology ; Synaptotagmin I/metabolism
    Print ISSN: 0036-8075
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  • 92
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    Tissue-engineered lungs for in vivo implantation (2010)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2010-06-26
    Description: Because adult lung tissue has limited regeneration capacity, lung transplantation is the primary therapy for severely damaged lungs. To explore whether lung tissue can be regenerated in vitro, we treated lungs from adult rats using a procedure that removes cellular components but leaves behind a scaffold of extracellular matrix that retains the hierarchical branching structures of airways and vasculature. We then used a bioreactor to culture pulmonary epithelium and vascular endothelium on the acellular lung matrix. The seeded epithelium displayed remarkable hierarchical organization within the matrix, and the seeded endothelial cells efficiently repopulated the vascular compartment. In vitro, the mechanical characteristics of the engineered lungs were similar to those of native lung tissue, and when implanted into rats in vivo for short time intervals (45 to 120 minutes) the engineered lungs participated in gas exchange. Although representing only an initial step toward the ultimate goal of generating fully functional lungs in vitro, these results suggest that repopulation of lung matrix is a viable strategy for lung regeneration.〈br /〉〈br /〉〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3640463/" target="_blank"〉〈img src="https://static.pubmed.gov/portal/portal3rc.fcgi/4089621/img/3977009" border="0"〉〈/a〉   〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3640463/" target="_blank"〉This paper as free author manuscript - peer-reviewed and accepted for publication〈/a〉〈br /〉〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Petersen, Thomas H -- Calle, Elizabeth A -- Zhao, Liping -- Lee, Eun Jung -- Gui, Liqiong -- Raredon, MichaSam B -- Gavrilov, Kseniya -- Yi, Tai -- Zhuang, Zhen W -- Breuer, Christopher -- Herzog, Erica -- Niklason, Laura E -- HL 098220/HL/NHLBI NIH HHS/ -- R01 HL098220/HL/NHLBI NIH HHS/ -- R01 HL098220-01/HL/NHLBI NIH HHS/ -- R01 HL098220-02/HL/NHLBI NIH HHS/ -- T32 GM007171/GM/NIGMS NIH HHS/ -- T32 GM007171-26/GM/NIGMS NIH HHS/ -- New York, N.Y. -- Science. 2010 Jul 30;329(5991):538-41. doi: 10.1126/science.1189345. Epub 2010 Jun 24.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Biomedical Engineering, Yale University, New Haven, CT 06520, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/20576850" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Bioreactors ; Detergents ; Endothelial Cells/cytology/physiology ; Epithelial Cells/cytology/physiology ; *Extracellular Matrix/physiology ; Humans ; *Lung/blood supply/cytology/physiology ; Lung Compliance ; Lung Transplantation ; Male ; Pulmonary Alveoli/blood supply/ultrastructure ; Pulmonary Gas Exchange ; Rats ; Rats, Inbred F344 ; *Regeneration ; Respiratory Mucosa/cytology ; Tissue Engineering/*methods ; Tissue Scaffolds
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    Local and long-range reciprocal regulation of cAMP and cGMP in axon/dendrite formation (2010)
    American Association for the Advancement of Science (AAAS)
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    Publication Date: 2010-01-30
    Description: Cytosolic cyclic adenosine monophosphate (cAMP) and cyclic guanosine monophosphate (cGMP) often mediate antagonistic cellular actions of extracellular factors, from the regulation of ion channels to cell volume control and axon guidance. We found that localized cAMP and cGMP activities in undifferentiated neurites of cultured hippocampal neurons promote and suppress axon formation, respectively, and exert opposite effects on dendrite formation. Fluorescence resonance energy transfer imaging showed that alterations of the amount of cAMP resulted in opposite changes in the amount of cGMP, and vice versa, through the activation of specific phosphodiesterases and protein kinases. Local elevation of cAMP in one neurite resulted in cAMP reduction in all other neurites of the same neuron. Thus, local and long-range reciprocal regulation of cAMP and cGMP together ensures coordinated development of one axon and multiple dendrites.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Shelly, Maya -- Lim, Byung Kook -- Cancedda, Laura -- Heilshorn, Sarah C -- Gao, Hongfeng -- Poo, Mu-ming -- NS-22764/NS/NINDS NIH HHS/ -- New York, N.Y. -- Science. 2010 Jan 29;327(5965):547-52. doi: 10.1126/science.1179735.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Division of Neurobiology, Department of Molecular and Cell Biology, Helen Wills Neuroscience Institute, University of California, Berkeley, CA 94720, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/20110498" target="_blank"〉PubMed〈/a〉
    Keywords: Adenylyl Cyclase Inhibitors ; Adenylyl Cyclases/metabolism ; Animals ; Axons/metabolism/*physiology ; Cell Differentiation ; Cell Line ; Cell Polarity ; Cells, Cultured ; Cyclic AMP/*metabolism ; Cyclic AMP-Dependent Protein Kinases/antagonists & inhibitors/metabolism ; Cyclic GMP/*metabolism ; Dendrites/metabolism/*physiology ; Enzyme Inhibitors/pharmacology ; Fluorescence Resonance Energy Transfer ; Guanylate Cyclase/antagonists & inhibitors/metabolism ; Hippocampus/*cytology ; Humans ; Neurites/metabolism/physiology ; Neurons/cytology/*physiology ; Phosphodiesterase Inhibitors/pharmacology ; Phosphoric Diester Hydrolases/metabolism ; Phosphorylation ; Rats ; Signal Transduction ; Transfection
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    Dendritic discrimination of temporal input sequences in cortical neurons (2010)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2010-08-14
    Description: The detection and discrimination of temporal sequences is fundamental to brain function and underlies perception, cognition, and motor output. By applying patterned, two-photon glutamate uncaging, we found that single dendrites of cortical pyramidal neurons exhibit sensitivity to the sequence of synaptic activation. This sensitivity is encoded by both local dendritic calcium signals and somatic depolarization, leading to sequence-selective spike output. The mechanism involves dendritic impedance gradients and nonlinear synaptic N-methyl-D-aspartate receptor activation and is generalizable to dendrites in different neuronal types. This enables discrimination of patterns delivered to a single dendrite, as well as patterns distributed randomly across the dendritic tree. Pyramidal cell dendrites can thus act as processing compartments for the detection of synaptic sequences, thereby implementing a fundamental cortical computation.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Branco, Tiago -- Clark, Beverley A -- Hausser, Michael -- Wellcome Trust/United Kingdom -- New York, N.Y. -- Science. 2010 Sep 24;329(5999):1671-5. doi: 10.1126/science.1189664. Epub 2010 Aug 12.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Wolfson Institute for Biomedical Research and Department of Neuroscience, Physiology, and Pharmacology, University College London, Gower Street, London WC1E 6BT, UK.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/20705816" target="_blank"〉PubMed〈/a〉
    Keywords: Action Potentials ; Animals ; Calcium/metabolism ; Calcium Signaling ; Dendrites/*physiology/ultrastructure ; Dendritic Spines/*physiology/ultrastructure ; Excitatory Postsynaptic Potentials ; Models, Neurological ; Pyramidal Cells/*physiology/ultrastructure ; Rats ; Rats, Sprague-Dawley ; Receptors, N-Methyl-D-Aspartate/metabolism ; Somatosensory Cortex/cytology/*physiology ; Synapses/*physiology ; Time Factors ; Visual Cortex/cytology/*physiology
    Print ISSN: 0036-8075
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    Cell biology. How to STIMulate calcium channels (2010)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2010-10-12
    Description: 〈br /〉〈br /〉〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3133971/" target="_blank"〉〈img src="https://static.pubmed.gov/portal/portal3rc.fcgi/4089621/img/3977009" border="0"〉〈/a〉   〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3133971/" target="_blank"〉This paper as free author manuscript - peer-reviewed and accepted for publication〈/a〉〈br /〉〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Cahalan, Michael D -- R37 NS014609/NS/NINDS NIH HHS/ -- R37 NS014609-33/NS/NINDS NIH HHS/ -- New York, N.Y. -- Science. 2010 Oct 1;330(6000):43-4. doi: 10.1126/science.1196348.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Physiology and Biophysics, University of California, Irvine, CA 92697, USA. mcahalan@uci.edu〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/20929798" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Calcium/metabolism ; Calcium Channel Blockers/metabolism ; Calcium Channels/*metabolism ; Calcium Channels, L-Type/chemistry/*metabolism ; Calcium Signaling ; Cell Membrane/*metabolism ; Endoplasmic Reticulum/metabolism ; Humans ; Lymphocytes/metabolism ; Membrane Glycoproteins/chemistry/*metabolism ; Membrane Proteins/chemistry/*metabolism ; Neoplasm Proteins/chemistry/*metabolism ; Neurons/metabolism ; Protein Structure, Tertiary ; Rats
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    Reconstructing the lung (2010)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2010-07-31
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Wagner, William R -- Griffith, Bartley P -- R01 HL069368/HL/NHLBI NIH HHS/ -- New York, N.Y. -- Science. 2010 Jul 30;329(5991):520-2. doi: 10.1126/science.1194087.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉McGowan Institute for Regenerative Medicine, Department of Surgery, University of Pittsburgh, Pittsburgh, PA 15219, USA. wagnerwr@upmc.edu〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/20671176" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Bioreactors ; Endothelial Cells/cytology ; Epithelial Cells/cytology/physiology ; *Extracellular Matrix/physiology ; Humans ; *Lung/blood supply/cytology/physiology ; Lung Transplantation ; Pulmonary Gas Exchange ; Rats ; *Regeneration ; Respiratory Mucosa/cytology/physiology ; Tissue Engineering/*methods ; Tissue Scaffolds
    Print ISSN: 0036-8075
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    Biomedical research. Of mice and women: the bias in animal models (2010)
    American Association for the Advancement of Science (AAAS)
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    Publication Date: 2010-03-27
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Wald, Chelsea -- Wu, Corinna -- New York, N.Y. -- Science. 2010 Mar 26;327(5973):1571-2. doi: 10.1126/science.327.5973.1571.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/20339045" target="_blank"〉PubMed〈/a〉
    Keywords: *Animal Experimentation ; Animals ; *Bias (Epidemiology) ; Editorial Policies ; Female ; Financing, Government ; Guidelines as Topic ; Humans ; Male ; Mice ; *Models, Animal ; National Institutes of Health (U.S.) ; Rats ; Research Support as Topic ; *Sex Characteristics ; United States ; Women's Health
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  • 98
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    Paradoxical false memory for objects after brain damage (2010)
    American Association for the Advancement of Science (AAAS)
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    Publication Date: 2010-12-04
    Description: Poor memory after brain damage is usually considered to be a result of information being lost or rendered inaccessible. It is assumed that such memory impairment must be due to the incorrect interpretation of previously encountered information as being novel. In object recognition memory experiments with rats, we found that memory impairment can take the opposite form: a tendency to treat novel experiences as familiar. This impairment could be rescued with the use of a visual-restriction procedure that reduces interference. Such a pattern of data can be explained in terms of a recent representational-hierarchical view of cognition.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉McTighe, Stephanie M -- Cowell, Rosemary A -- Winters, Boyer D -- Bussey, Timothy J -- Saksida, Lisa M -- Biotechnology and Biological Sciences Research Council/United Kingdom -- Medical Research Council/United Kingdom -- New York, N.Y. -- Science. 2010 Dec 3;330(6009):1408-10. doi: 10.1126/science.1194780.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Experimental Psychology, University of Cambridge, Cambridge CB2 3EB, UK.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/21127256" target="_blank"〉PubMed〈/a〉
    Keywords: Amnesia/physiopathology ; Animals ; Brain Injuries/*physiopathology ; Brain Mapping ; Cognition ; Darkness ; Male ; *Memory ; Memory Disorders/*physiopathology ; Models, Neurological ; Neural Pathways/physiology ; Random Allocation ; Rats ; *Recognition (Psychology) ; Sensory Deprivation ; Temporal Lobe/*injuries/*physiopathology ; Vision, Ocular
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  • 99
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    The calcium store sensor, STIM1, reciprocally controls Orai and CaV1.2 channels (2010)
    American Association for the Advancement of Science (AAAS)
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    Publication Date: 2010-10-12
    Description: Calcium signals, pivotal in controlling cell function, can be generated by calcium entry channels activated by plasma membrane depolarization or depletion of internal calcium stores. We reveal a regulatory link between these two channel subtypes mediated by the ubiquitous calcium-sensing STIM proteins. STIM1 activation by store depletion or mutational modification strongly suppresses voltage-operated calcium (Ca(V)1.2) channels while activating store-operated Orai channels. Both actions are mediated by the short STIM-Orai activating region (SOAR) of STIM1. STIM1 interacts with Ca(V)1.2 channels and localizes within discrete endoplasmic reticulum/plasma membrane junctions containing both Ca(V)1.2 and Orai1 channels. Hence, STIM1 interacts with and reciprocally controls two major calcium channels hitherto thought to operate independently. Such coordinated control of the widely expressed Ca(V)1.2 and Orai channels has major implications for Ca(2+) signal generation in excitable and nonexcitable cells.〈br /〉〈br /〉〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3601900/" target="_blank"〉〈img src="https://static.pubmed.gov/portal/portal3rc.fcgi/4089621/img/3977009" border="0"〉〈/a〉   〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3601900/" target="_blank"〉This paper as free author manuscript - peer-reviewed and accepted for publication〈/a〉〈br /〉〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Wang, Youjun -- Deng, Xiaoxiang -- Mancarella, Salvatore -- Hendron, Eunan -- Eguchi, Satoru -- Soboloff, Jonathan -- Tang, Xiang D -- Gill, Donald L -- AI058173/AI/NIAID NIH HHS/ -- HL55426/HL/NHLBI NIH HHS/ -- R01 AI058173/AI/NIAID NIH HHS/ -- R01 HL055426/HL/NHLBI NIH HHS/ -- New York, N.Y. -- Science. 2010 Oct 1;330(6000):105-9. doi: 10.1126/science.1191086.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Biochemistry and Cardiovascular Research Center, Temple University School of Medicine, 3400 North Broad Street, Philadelphia, PA 19140, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/20929813" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Calcium/metabolism ; Calcium Channels/genetics/*metabolism ; Calcium Channels, L-Type/*metabolism ; Calcium Signaling ; Cell Line ; Cell Membrane/metabolism ; Endoplasmic Reticulum/metabolism ; Humans ; Membrane Glycoproteins/chemistry/genetics/*metabolism ; Muscle, Smooth, Vascular/cytology ; Mutant Proteins/metabolism ; Myocytes, Smooth Muscle/*metabolism ; Patch-Clamp Techniques ; RNA Interference ; Rats ; Transfection
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    Induction of fear extinction with hippocampal-infralimbic BDNF (2010)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2010-06-05
    Description: The extinction of conditioned fear memories requires plasticity in the infralimbic medial prefrontal cortex (IL mPFC), but little is known about the molecular mechanisms involved. Brain-derived neurotrophic factor (BDNF) is a key mediator of synaptic plasticity in multiple brain areas. In rats subjected to auditory fear conditioning, BDNF infused into the IL mPFC reduced conditioned fear for up to 48 hours, even in the absence of extinction training, which suggests that BDNF substituted for extinction. Similar to extinction, BDNF-induced reduction in fear required N-methyl-D-aspartate receptors and did not erase the original fear memory. Rats failing to learn extinction showed reduced BDNF in hippocampal inputs to the IL mPFC, and augmenting BDNF in this pathway prevented extinction failure. Hence, boosting BDNF activity in hippocampal-infralimbic circuits may ameliorate disorders of learned fear.〈br /〉〈br /〉〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3570764/" target="_blank"〉〈img src="https://static.pubmed.gov/portal/portal3rc.fcgi/4089621/img/3977009" border="0"〉〈/a〉   〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3570764/" target="_blank"〉This paper as free author manuscript - peer-reviewed and accepted for publication〈/a〉〈br /〉〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Peters, Jamie -- Dieppa-Perea, Laura M -- Melendez, Loyda M -- Quirk, Gregory J -- F32 MH085383/MH/NIMH NIH HHS/ -- G12 MD007600/MD/NIMHD NIH HHS/ -- G12 RR003051-20/RR/NCRR NIH HHS/ -- MH058883/MH/NIMH NIH HHS/ -- MH081975/MH/NIMH NIH HHS/ -- MH083516/MH/NIMH NIH HHS/ -- MH085383/MH/NIMH NIH HHS/ -- NS043011/NS/NINDS NIH HHS/ -- RR003051/RR/NCRR NIH HHS/ -- New York, N.Y. -- Science. 2010 Jun 4;328(5983):1288-90. doi: 10.1126/science.1186909.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Psychiatry, University of Puerto Rico School of Medicine, San Juan, PR 00936.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/20522777" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Brain-Derived Neurotrophic Factor/administration & ; dosage/*metabolism/*pharmacology ; *Conditioning (Psychology) ; Excitatory Amino Acid Antagonists/pharmacology ; *Extinction, Psychological ; Fear/*drug effects ; Hippocampus/drug effects/metabolism/*physiology ; Humans ; Male ; Memory/drug effects ; Neural Pathways/drug effects/physiology ; Piperazines/pharmacology ; Prefrontal Cortex/drug effects/metabolism/*physiology ; Rats ; Rats, Sprague-Dawley ; Receptors, N-Methyl-D-Aspartate/antagonists & inhibitors/metabolism ; Recombinant Proteins/administration & dosage/pharmacology
    Print ISSN: 0036-8075
    Electronic ISSN: 1095-9203
    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
    Published by American Association for the Advancement of Science (AAAS)
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