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  • Articles  (9)
  • Rats
  • American Association for the Advancement of Science (AAAS)  (9)
  • 2020-2023
  • 1995-1999  (9)
  • 1999  (9)
  • 1
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    Focal adhesion motility revealed in stationary fibroblasts (1999)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1999-11-05
    Description: Focal adhesions (FAs) are clustered integrins and associated proteins that mediate cell adhesion and signaling. A green fluorescent protein-beta1 integrin chimera was used to label FAs in living cells. In stationary cells, FAs were highly motile, moving linearly for several plaque lengths toward the cell center. FA motility was independent of cell density and resulted from contraction of associated actin fibers. In migrating cells, FAs were stationary and only moved in the tail. FA motility in stationary cells suggests that cell movement may be regulated by a clutch-like mechanism by which the affinity of integrins to substrate may be altered in response to migratory cues.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Smilenov, L B -- Mikhailov, A -- Pelham, R J -- Marcantonio, E E -- Gundersen, G G -- GM42026/GM/NIGMS NIH HHS/ -- GM44585/GM/NIGMS NIH HHS/ -- New York, N.Y. -- Science. 1999 Nov 5;286(5442):1172-4.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Pathology, Columbia University, New York, NY 10032, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/10550057" target="_blank"〉PubMed〈/a〉
    Keywords: 3T3 Cells ; Actins/physiology ; Animals ; Antigens, CD29/*metabolism ; *Cell Adhesion ; Cell Count ; Cell Line ; *Cell Movement ; Fibroblasts/*cytology/metabolism ; Fluorescence ; Green Fluorescent Proteins ; Luminescent Proteins ; Mice ; Microscopy, Interference ; Rats ; Recombinant Fusion Proteins/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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  • 2
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    Blockade of NMDA receptors and apoptotic neurodegeneration in the developing brain (1999)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1999-01-05
    Description: Programmed cell death (apoptosis) occurs during normal development of the central nervous system. However, the mechanisms that determine which neurons will succumb to apoptosis are poorly understood. Blockade of N-methyl-D-aspartate (NMDA) glutamate receptors for only a few hours during late fetal or early neonatal life triggered widespread apoptotic neurodegeneration in the developing rat brain, suggesting that the excitatory neurotransmitter glutamate, acting at NMDA receptors, controls neuronal survival. These findings may have relevance to human neurodevelopmental disorders involving prenatal (drug-abusing mothers) or postnatal (pediatric anesthesia) exposure to drugs that block NMDA receptors.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Ikonomidou, C -- Bosch, F -- Miksa, M -- Bittigau, P -- Vockler, J -- Dikranian, K -- Tenkova, T I -- Stefovska, V -- Turski, L -- Olney, J W -- AG 11355/AG/NIA NIH HHS/ -- DA 05072/DA/NIDA NIH HHS/ -- MH 38894/MH/NIMH NIH HHS/ -- New York, N.Y. -- Science. 1999 Jan 1;283(5398):70-4.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Pediatric Neurology, Charite-Virchow Clinics, Humboldt University, Augustenburger Platz 1, 13353 Berlin, Germany. hrissanthi.ikonomidou@charite.de〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/9872743" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; *Apoptosis ; Brain/*cytology/drug effects/embryology/growth & development ; Calcium Channel Blockers/pharmacology ; Dizocilpine Maleate/pharmacology ; Dopamine Antagonists/pharmacology ; Dose-Response Relationship, Drug ; Excitatory Amino Acid Antagonists/pharmacology ; Fetus ; Haloperidol/pharmacology ; Immunohistochemistry ; In Situ Nick-End Labeling ; Microscopy, Electron ; Muscarinic Antagonists/pharmacology ; *Nerve Degeneration ; Neurons/*cytology/drug effects/metabolism ; Quinoxalines/pharmacology ; Rats ; Receptors, N-Methyl-D-Aspartate/*antagonists & inhibitors/metabolism ; Scopolamine Hydrobromide/pharmacology
    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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    Transmission of chronic nociception by spinal neurons expressing the substance P receptor (1999)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1999-11-24
    Description: Substance P receptor (SPR)-expressing spinal neurons were ablated with the selective cytotoxin substance P-saporin. Loss of these neurons resulted in a reduction of thermal hyperalgesia and mechanical allodynia associated with persistent neuropathic and inflammatory pain states. This loss appeared to be permanent. Responses to mildly painful stimuli and morphine analgesia were unaffected by this treatment. These results identify a target for treating persistent pain and suggest that the small population of SPR-expressing neurons in the dorsal horn of the spinal cord plays a pivotal role in the generation and maintenance of chronic neuropathic and inflammatory pain.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Nichols, M L -- Allen, B J -- Rogers, S D -- Ghilardi, J R -- Honore, P -- Luger, N M -- Finke, M P -- Li, J -- Lappi, D A -- Simone, D A -- Mantyh, P W -- 23970/PHS HHS/ -- 31223/PHS HHS/ -- DEO 7288/DE/NIDCR NIH HHS/ -- etc. -- New York, N.Y. -- Science. 1999 Nov 19;286(5444):1558-61.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Preventive Sciences, University of Minnesota, Minneapolis, MN 55455, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/10567262" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Dose-Response Relationship, Drug ; Ganglia, Spinal/drug effects/physiology ; *Immunotoxins ; Inflammation/physiopathology ; Ligation ; *N-Glycosyl Hydrolases ; Neuralgia/drug therapy/physiopathology ; Pain/*drug therapy/*physiopathology ; Plant Proteins/administration & dosage/*pharmacology ; Posterior Horn Cells/drug effects/*physiology ; Rats ; Receptors, Neurokinin-1/*metabolism ; Ribosome Inactivating Proteins, Type 1 ; Spinal Nerves ; Substance P/administration & dosage/*pharmacology ; Time 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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  • 4
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    Dual function of the selenoprotein PHGPx during sperm maturation (1999)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1999-08-28
    Description: The selenoprotein phospholipid hydroperoxide glutathione peroxidase (PHGPx) changes its physical characteristics and biological functions during sperm maturation. PHGPx exists as a soluble peroxidase in spermatids but persists in mature spermatozoa as an enzymatically inactive, oxidatively cross-linked, insoluble protein. In the midpiece of mature spermatozoa, PHGPx protein represents at least 50 percent of the capsule material that embeds the helix of mitochondria. The role of PHGPx as a structural protein may explain the mechanical instability of the mitochondrial midpiece that is observed in selenium deficiency.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Ursini, F -- Heim, S -- Kiess, M -- Maiorino, M -- Roveri, A -- Wissing, J -- Flohe, L -- New York, N.Y. -- Science. 1999 Aug 27;285(5432):1393-6.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Dipartmento di Chimica Biologica, Universita di Padova, Viale G. Colombo 3, I-35121 Padova, Italy.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/10464096" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Electrophoresis, Gel, Two-Dimensional ; Electrophoresis, Polyacrylamide Gel ; Glutathione Peroxidase/chemistry/isolation & purification/*physiology ; Infertility, Male/metabolism ; Male ; Mitochondria/chemistry/enzymology ; Oxidation-Reduction ; Proteins/chemistry/isolation & purification/*physiology ; Rats ; Rats, Wistar ; Selenium/deficiency/*physiology ; Selenoproteins ; Solubility ; Spectrometry, Mass, Matrix-Assisted Laser Desorption-Ionization ; Spermatids/chemistry/enzymology ; *Spermatogenesis ; Spermatozoa/chemistry/enzymology/*physiology
    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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  • 5
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    A nonpeptidyl mimic of superoxide dismutase with therapeutic activity in rats (1999)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1999-10-09
    Description: Many human diseases are associated with the overproduction of oxygen free radicals that inflict cell damage. A manganese(II) complex with a bis(cyclohexylpyridine)-substituted macrocyclic ligand (M40403) was designed to be a functional mimic of the superoxide dismutase (SOD) enzymes that normally remove these radicals. M40403 had high catalytic SOD activity and was chemically and biologically stable in vivo. Injection of M40403 into rat models of inflammation and ischemia-reperfusion injury protected the animals against tissue damage. Such mimics may result in better clinical therapies for diseases mediated by superoxide radicals.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Salvemini, D -- Wang, Z Q -- Zweier, J L -- Samouilov, A -- Macarthur, H -- Misko, T P -- Currie, M G -- Cuzzocrea, S -- Sikorski, J A -- Riley, D P -- New York, N.Y. -- Science. 1999 Oct 8;286(5438):304-6.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉MetaPhore Pharmaceuticals, 1910 Innerbelt Business Center Drive, St. Louis, MO 63114, USA. dsalvemini@metaphore.com〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/10514375" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Anti-Inflammatory Agents, Non-Steroidal/chemical ; synthesis/chemistry/metabolism/*therapeutic use ; Cytoprotection ; Dinoprostone/metabolism ; Dose-Response Relationship, Drug ; Drug Design ; Drug Stability ; Inflammation/*drug therapy ; Interleukin-1/metabolism ; L-Lactate Dehydrogenase/metabolism ; Male ; Manganese ; Molecular Mimicry ; Neutrophils/drug effects ; Organometallic Compounds/chemical synthesis/chemistry/metabolism/*toxicity ; Rats ; Rats, Sprague-Dawley ; Reperfusion Injury/*drug therapy ; Splanchnic Circulation ; *Superoxide Dismutase/metabolism ; Superoxides/*metabolism ; Time Factors ; Tumor Necrosis Factor-alpha/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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  • 6
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    Modulation of respiratory frequency by peptidergic input to rhythmogenic neurons in the preBotzinger complex (1999)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1999-11-24
    Description: Neurokinin-1 receptor (NK1R) and mu-opioid receptor (muOR) agonists affected respiratory rhythm when injected directly into the preBotzinger Complex (preBotC), the hypothesized site for respiratory rhythmogenesis in mammals. These effects were mediated by actions on preBotC rhythmogenic neurons. The distribution of NK1R+ neurons anatomically defined the preBotC. Type 1 neurons in the preBotC, which have rhythmogenic properties, expressed both NK1Rs and muORs, whereas type 2 neurons expressed only NK1Rs. These findings suggest that the preBotC is a definable anatomic structure with unique physiological function and that a subpopulation of neurons expressing both NK1Rs and muORs generate respiratory rhythm and modulate respiratory frequency.〈br /〉〈br /〉〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC2811082/" 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/PMC2811082/" target="_blank"〉This paper as free author manuscript - peer-reviewed and accepted for publication〈/a〉〈br /〉〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Gray, P A -- Rekling, J C -- Bocchiaro, C M -- Feldman, J L -- HL37941/HL/NHLBI NIH HHS/ -- HL40959/HL/NHLBI NIH HHS/ -- R01 HL040959/HL/NHLBI NIH HHS/ -- R01 HL040959-12/HL/NHLBI NIH HHS/ -- New York, N.Y. -- Science. 1999 Nov 19;286(5444):1566-8.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Neurobiology, University of California Los Angeles, Box 951763, Los Angeles, CA 90095-1763, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/10567264" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Enkephalin, Ala(2)-MePhe(4)-Gly(5)-/pharmacology ; Female ; In Vitro Techniques ; Medulla Oblongata/cytology/drug effects/*physiology ; Mice ; Mice, Inbred BALB C ; Neurons/chemistry/drug effects/*physiology ; Rats ; Rats, Sprague-Dawley ; Receptors, GABA-B/analysis/physiology ; Receptors, Neurokinin-1/agonists/analysis/*physiology ; Receptors, Opioid, mu/agonists/analysis/*physiology ; Respiratory Mechanics/drug effects/*physiology ; Substance P/pharmacology ; Synaptic Transmission/drug effects
    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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  • 7
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    Regulation of NMDA receptors by an associated phosphatase-kinase signaling complex (1999)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1999-07-03
    Description: Regulation of N-methyl-D-aspartate (NMDA) receptor activity by kinases and phosphatases contributes to the modulation of synaptic transmission. Targeting of these enzymes near the substrate is proposed to enhance phosphorylation-dependent modulation. Yotiao, an NMDA receptor-associated protein, bound the type I protein phosphatase (PP1) and the adenosine 3',5'-monophosphate (cAMP)-dependent protein kinase (PKA) holoenzyme. Anchored PP1 was active, limiting channel activity, whereas PKA activation overcame constitutive PP1 activity and conferred rapid enhancement of NMDA receptor currents. Hence, yotiao is a scaffold protein that physically attaches PP1 and PKA to NMDA receptors to regulate channel activity.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Westphal, R S -- Tavalin, S J -- Lin, J W -- Alto, N M -- Fraser, I D -- Langeberg, L K -- Sheng, M -- Scott, J D -- F32 NS010202/NS/NINDS NIH HHS/ -- GM 48231/GM/NIGMS NIH HHS/ -- NS10202/NS/NINDS NIH HHS/ -- NS10543/NS/NINDS NIH HHS/ -- etc. -- New York, N.Y. -- Science. 1999 Jul 2;285(5424):93-6.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Howard Hughes Medical Institute, Vollum Institute, Oregon Health Sciences University, 3181 S.W. Sam Jackson Road, Portland, OR 97201, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/10390370" target="_blank"〉PubMed〈/a〉
    Keywords: A Kinase Anchor Proteins ; *Adaptor Proteins, Signal Transducing ; Amino Acid Sequence ; Animals ; Binding Sites ; Carrier Proteins/*metabolism ; Cell Line ; Cyclic AMP/analogs & derivatives/pharmacology ; Cyclic AMP-Dependent Protein Kinases/*metabolism ; Cytoskeletal Proteins/*metabolism ; Enzyme Inhibitors/pharmacology ; Holoenzymes/metabolism ; Humans ; Molecular Sequence Data ; Okadaic Acid/pharmacology ; Patch-Clamp Techniques ; Peptide Fragments/pharmacology ; Phosphoprotein Phosphatases/*metabolism ; Phosphorylation ; Rats ; Receptors, N-Methyl-D-Aspartate/*metabolism ; Recombinant Fusion Proteins/metabolism ; Signal Transduction ; Thionucleotides/pharmacology ; Transfection
    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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  • 8
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    Redefining rats, mice, and birds. AAA (American Association of Anatomists) Public Affairs Committee (1999)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1999-04-24
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Besharse, J C -- Carlson, B M -- Jenkins, D P -- Lester, D S -- Olds, J L -- Satir, P -- New York, N.Y. -- Science. 1999 Apr 2;284(5411):49-50.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/10215528" target="_blank"〉PubMed〈/a〉
    Keywords: Animal Rights/*legislation & jurisprudence ; Animal Welfare/*legislation & jurisprudence ; Animals ; *Animals, Laboratory ; Birds ; Mice ; Rats ; Research ; Societies, Scientific ; United States ; United States Department of Agriculture/legislation & jurisprudence
    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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  • 9
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    Testing the genetics of behavior in mice (1999)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1999-10-16
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Pohorecky, L A -- New York, N.Y. -- Science. 1999 Sep 24;285(5436):2067-8; author reply 2069-70.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/10523200" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Animals, Laboratory ; *Behavior, Animal ; Confounding Factors (Epidemiology) ; Genetics, Behavioral/*methods ; Handling (Psychology) ; *Housing, Animal ; Mice ; 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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