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  • Cell Line  (349)
  • Rats  (326)
  • Organic Chemistry
  • Polymer and Materials Science
  • American Association for the Advancement of Science (AAAS)  (632)
  • 1995-1999  (632)
Collection
Keywords
Publisher
Years
Year
  • 1
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    Modulation of brain reward circuitry by leptin (1999)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1999-12-30
    Description: Leptin, a hormone secreted by fat cells, suppresses food intake and promotes weight loss. To assess the action of this hormone on brain reward circuitry, changes in the rewarding effect of lateral hypothalamic stimulation were measured after leptin administration. At five stimulation sites near the fornix, the effectiveness of the rewarding electrical stimulation was enhanced by chronic food restriction and attenuated by intracerebroventricular infusion of leptin. In contrast, the rewarding effect of stimulating neighboring sites was insensitive to chronic food restriction and was enhanced by leptin in three of four cases. These opposing effects of leptin may mirror complementary changes in the rewarding effects of feeding and of competing behaviors.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Fulton, S -- Woodside, B -- Shizgal, P -- New York, N.Y. -- Science. 2000 Jan 7;287(5450):125-8.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Center for Studies in Behavioural Neurobiology, Concordia University, Montreal, QC, H3G 1M8, Canada.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/10615045" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Electric Stimulation ; Energy Metabolism ; Feeding Behavior ; Food Deprivation/*physiology ; Hypothalamic Area, Lateral/drug effects/*physiology ; Injections, Intraventricular ; Leptin/administration & dosage/*pharmacology ; Male ; Neurons/physiology ; Neuropeptides/physiology ; Rats ; Rats, Long-Evans ; Recombinant Proteins/administration & dosage/pharmacology ; *Reward ; Self Stimulation/physiology ; Time Factors
    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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  • 2
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    A mammalian H+ channel generated through alternative splicing of the NADPH oxidase homolog NOH-1 (1999)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1999-12-30
    Description: Voltage-gated proton (H+) channels are found in many human and animal tissues and play an important role in cellular defense against acidic stress. However, a molecular identification of these unique ion conductances has so far not been achieved. A 191-amino acid protein is described that, upon heterologous expression, has properties indistinguishable from those of native H+ channels. This protein is generated through alternative splicing of messenger RNA derived from the gene NOH-1 (NADPH oxidase homolog 1, where NADPH is the reduced form of nicotinamide adenine dinucleotide phosphate).〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Banfi, B -- Maturana, A -- Jaconi, S -- Arnaudeau, S -- Laforge, T -- Sinha, B -- Ligeti, E -- Demaurex, N -- Krause, K H -- New York, N.Y. -- Science. 2000 Jan 7;287(5450):138-42.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Biology of Aging Laboratory, Department of Geriatrics, Geneva University Hospitals, Geneva Medical School, CH-1211 Geneva 4, Switzerland.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/10615049" target="_blank"〉PubMed〈/a〉
    Keywords: *Alternative Splicing ; Amino Acid Sequence ; Cell Line ; Cytosol/metabolism ; Electric Conductivity ; Electron Transport ; Expressed Sequence Tags ; Humans ; Hydrogen/*metabolism ; Hydrogen-Ion Concentration ; Ion Channel Gating ; Ion Channels/chemistry/*genetics/metabolism ; Membrane Glycoproteins/chemistry/*genetics ; Molecular Sequence Data ; NADPH Oxidase/chemistry/*genetics ; Patch-Clamp Techniques ; Protons ; Transfection ; Tumor Cells, Cultured ; Zinc/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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    Stem cells. Rat spinal cord function partially restored (1999)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1999-12-28
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Wickelgren, I -- New York, N.Y. -- Science. 1999 Dec 3;286(5446):1826-7.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/10610569" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Astrocytes/cytology ; Cell Differentiation ; Cell Survival ; Embryo, Mammalian ; Mice ; Neurons/cytology ; Oligodendroglia/cytology ; Rats ; Spinal Cord/cytology/*physiology ; Spinal Cord Injuries/*therapy ; *Stem Cell Transplantation ; Stem Cells/cytology
    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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    Key brain receptor gets an unusual regulator (1999)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1999-12-28
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Wickelgren, I -- New York, N.Y. -- Science. 1999 Nov 12;286(5443):1265-6.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/10610528" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Astrocytes/*enzymology ; Brain/*enzymology ; Cloning, Molecular ; Glutamic Acid/metabolism ; Neurons/metabolism ; Racemases and Epimerases/*genetics/metabolism ; Rats ; Receptors, N-Methyl-D-Aspartate/metabolism ; Serine/*biosynthesis/metabolism ; Stereoisomerism ; Synapses/metabolism
    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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  • 5
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    Cholesterol-lowering drugs may boost bones (1999)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1999-12-28
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Vogel, G -- New York, N.Y. -- Science. 1999 Dec 3;286(5446):1825-6.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/10610568" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Anticholesteremic Agents/*pharmacology ; Bone Density/*drug effects ; Bone Morphogenetic Protein 2 ; Bone Morphogenetic Proteins/biosynthesis ; Clinical Trials as Topic ; Female ; Humans ; Hydroxymethylglutaryl-CoA Reductase Inhibitors/*pharmacology ; Lovastatin/*pharmacology ; Mice ; Osteogenesis/*drug effects ; Osteoporosis/drug therapy ; Rats ; Simvastatin/pharmacology ; *Transforming Growth Factor beta
    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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  • 6
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    Learning visualised, on the double (1999)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1999-12-28
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Barinaga, M -- New York, N.Y. -- Science. 1999 Nov 26;286(5445):1661.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/10610556" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Brain/physiology/*ultrastructure ; Calcium/metabolism ; Image Processing, Computer-Assisted ; In Vitro Techniques ; Learning/*physiology ; *Long-Term Potentiation ; Microscopy, Electron ; Rats ; Synapses/*ultrastructure ; Synaptic Transmission
    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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  • 7
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    Cutting back the calories (1999)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1999-12-28
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Gerhard, G S -- New York, N.Y. -- Science. 1999 Nov 26;286(5445):1679-80.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/10610562" target="_blank"〉PubMed〈/a〉
    Keywords: Aging/*genetics ; Animals ; Cerebral Cortex/metabolism ; *Energy Intake ; Gene Expression ; *Gene Expression Profiling ; Mice ; Mice, Inbred C57BL ; Muscle, Skeletal/*metabolism ; Oligonucleotide Array Sequence Analysis ; Rats ; Research Design
    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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    Mediation by a CREB family transcription factor of NGF-dependent survival of sympathetic neurons (1999)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1999-12-22
    Description: Nerve growth factor (NGF) and other neurotrophins support survival of neurons through processes that are incompletely understood. The transcription factor CREB is a critical mediator of NGF-dependent gene expression, but whether CREB family transcription factors regulate expression of genes that contribute to NGF-dependent survival of sympathetic neurons is unknown. CREB-mediated gene expression was both necessary for NGF-dependent survival and sufficient on its own to promote survival of sympathetic neurons. Moreover, expression of Bcl-2 was activated by NGF and other neurotrophins by a CREB-dependent transcriptional mechanism. Overexpression of Bcl-2 reduced the death-promoting effects of CREB inhibition. Together, these data support a model in which neurotrophins promote survival of neurons, in part through a mechanism involving CREB family transcription factor-dependent expression of genes encoding prosurvival factors.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Riccio, A -- Ahn, S -- Davenport, C M -- Blendy, J A -- Ginty, D D -- NS34814-04/NS/NINDS NIH HHS/ -- New York, N.Y. -- Science. 1999 Dec 17;286(5448):2358-61.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Neuroscience, The Johns Hopkins University School of Medicine, 725 North Wolfe Street, Baltimore, MD 21205-2185, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/10600750" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Apoptosis ; Axons/drug effects/metabolism ; Brain-Derived Neurotrophic Factor/pharmacology ; Cell Nucleus/metabolism ; Cell Survival ; Cells, Cultured ; Cyclic AMP Response Element-Binding Protein/antagonists & inhibitors/*metabolism ; *Gene Expression Regulation ; Genes, bcl-2 ; Genetic Vectors ; Nerve Growth Factor/*pharmacology ; Neurons/*cytology/drug effects/metabolism ; PC12 Cells ; Promoter Regions, Genetic ; Proto-Oncogene Proteins c-bcl-2/genetics/metabolism ; Rats ; Recombinant Fusion Proteins/metabolism ; Signal Transduction ; Sympathetic Nervous System/*cytology/drug effects/metabolism ; 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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  • 9
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    Mouse models of tumor development in neurofibromatosis type 1 (1999)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1999-12-11
    Description: Neurofibromatosis type 1 (NF1) is a prevalent familial cancer syndrome resulting from germ line mutations in the NF1 tumor suppressor gene. Hallmark features of the disease are the development of benign peripheral nerve sheath tumors (neurofibromas), which can progress to malignancy. Unlike humans, mice that are heterozygous for a mutation in Nf1 do not develop neurofibromas. However, as described here, chimeric mice composed in part of Nf1-/- cells do, which demonstrates that loss of the wild-type Nf1 allele is rate-limiting in tumor formation. In addition, mice that carry linked germ line mutations in Nf1 and p53 develop malignant peripheral nerve sheath tumors (MPNSTs), which supports a cooperative and causal role for p53 mutations in MPNST development. These two mouse models provide the means to address fundamental aspects of disease development and to test therapeutic strategies.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Cichowski, K -- Shih, T S -- Schmitt, E -- Santiago, S -- Reilly, K -- McLaughlin, M E -- Bronson, R T -- Jacks, T -- New York, N.Y. -- Science. 1999 Dec 10;286(5447):2172-6.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Biology and Center for Cancer Research and Howard Hughes Medical Institute, Massachusetts Institute of Technology, Cambridge, MA 02139, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/10591652" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Cell Line ; Chimera ; *Disease Models, Animal ; Female ; *Genes, Neurofibromatosis 1 ; Genes, p53 ; Germ-Line Mutation ; Humans ; Loss of Heterozygosity ; Male ; Mice ; Mice, Inbred C57BL ; Mice, Transgenic ; Mutation ; Nerve Sheath Neoplasms/*genetics/*pathology ; Nerve Tissue Proteins/analysis/physiology ; Neurofibromatosis 1/*genetics/*pathology ; Neurofibromin 1 ; Proteins/analysis/physiology ; S100 Proteins/analysis ; Schwann Cells/chemistry/ultrastructure ; Stem Cells
    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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  • 10
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    Functional human corneal equivalents constructed from cell lines (1999)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1999-12-11
    Description: Human corneal equivalents comprising the three main layers of the cornea (epithelium, stroma, and endothelium) were constructed. Each cellular layer was fabricated from immortalized human corneal cells that were screened for use on the basis of morphological, biochemical, and electrophysiological similarity to their natural counterparts. The resulting corneal equivalents mimicked human corneas in key physical and physiological functions, including morphology, biochemical marker expression, transparency, ion and fluid transport, and gene expression. Morphological and functional equivalents to human corneas that can be produced in vitro have immediate applications in toxicity and drug efficacy testing, and form the basis for future development of implantable tissues.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Griffith, M -- Osborne, R -- Munger, R -- Xiong, X -- Doillon, C J -- Laycock, N L -- Hakim, M -- Song, Y -- Watsky, M A -- New York, N.Y. -- Science. 1999 Dec 10;286(5447):2169-72.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉University of Ottawa Eye Institute and Department of Cellular and Molecular Medicine, University of Ottawa, Ottawa Hospital-General Campus, Ottawa, Ontario K1H 8L6, Canada. mgriffith@ogh.on.ca〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/10591651" target="_blank"〉PubMed〈/a〉
    Keywords: Animal Testing Alternatives ; *Biomedical Engineering ; Cell Line ; Cells, Cultured ; Chondroitin Sulfates ; Collagen ; *Cornea/cytology/growth & development/physiology ; Corneal Opacity/chemically induced ; Corneal Stroma/cytology/growth & development/physiology ; Corneal Transplantation ; Cross-Linking Reagents ; *Culture Techniques ; Electrophysiology ; Endothelium, Corneal/cytology/growth & development ; Epithelium, Corneal/cytology/growth & development ; Gene Expression ; Glutaral ; Humans ; Ion Channels ; Ouabain/pharmacology ; Patch-Clamp Techniques ; Sodium Dodecyl Sulfate/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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