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  • Male  (85)
  • Tumor Cells, Cultured  (49)
  • American Association for the Advancement of Science (AAAS)  (132)
  • American Institute of Physics (AIP)
  • Elsevier
  • Oxford University Press
  • 1995-1999  (132)
  • 1970-1974
  • 1997  (132)
Collection
Keywords
Publisher
  • American Association for the Advancement of Science (AAAS)  (132)
  • American Institute of Physics (AIP)
  • Elsevier
  • Oxford University Press
Years
  • 1995-1999  (132)
  • 1970-1974
Year
  • 1
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    Genetic testing for cancer risk (1997)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1997-11-14
    Description: Genetic testing for cancer susceptibility is already part of the clinical management of families with some of the well-defined (but uncommon) inherited cancer syndromes. In cases where the risks associated with a predisposing mutation are less certain, or where there is no clearly effective intervention to offer those with a positive result, its use is more controversial. Careful evaluation of costs and benefits, and of the efficacy of interventions in those found to be at risk, is essential and is only just beginning. An immediate challenge is to ensure that both health professionals and the public understand clearly the issues involved.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Ponder, B -- New York, N.Y. -- Science. 1997 Nov 7;278(5340):1050-4.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Oncology, University of Cambridge, Addenbrooke's Hospital, Box 238, Level 3 Lab Block, Hills Road, Cambridge CB2 2QQ, UK. bajp@mole.bio.cam.ac.uk〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/9353178" target="_blank"〉PubMed〈/a〉
    Keywords: Confidentiality ; Cost-Benefit Analysis ; Female ; Genetic Counseling ; Genetic Predisposition to Disease ; Genetic Services ; *Genetic Testing ; Genetic Variation ; Humans ; Insurance, Health ; Insurance, Life ; Male ; Mutation ; Neoplasms/*diagnosis/*genetics ; Resource Allocation ; Risk Assessment ; Risk Factors ; Uncertainty
    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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    Sexual selection in Asian elephants (1997)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1997-12-31
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Tiedemann, R -- New York, N.Y. -- Science. 1997 Nov 28;278(5343):1550-1.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/9411772" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Elephants/*anatomy & histology/*physiology ; Female ; Incisor/anatomy & histology ; India ; Male ; Models, Biological ; Models, Statistical ; *Sexual Behavior, Animal ; Sri Lanka
    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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    Pain affect encoded in human anterior cingulate but not somatosensory cortex (1997)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1997-08-15
    Description: Recent evidence demonstrating multiple regions of human cerebral cortex activated by pain has prompted speculation about their individual contributions to this complex experience. To differentiate cortical areas involved in pain affect, hypnotic suggestions were used to alter selectively the unpleasantness of noxious stimuli, without changing the perceived intensity. Positron emission tomography revealed significant changes in pain-evoked activity within anterior cingulate cortex, consistent with the encoding of perceived unpleasantness, whereas primary somatosensory cortex activation was unaltered. These findings provide direct experimental evidence in humans linking frontal-lobe limbic activity with pain affect, as originally suggested by early clinical lesion studies.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Rainville, P -- Duncan, G H -- Price, D D -- Carrier, B -- Bushnell, M C -- New York, N.Y. -- Science. 1997 Aug 15;277(5328):968-71.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉D-epartement de Psychologie and Centre de Recherche en Sciences Neurologiques, Universite de Montreal, Montreal, Quebec, Canada H3C 3J7.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/9252330" target="_blank"〉PubMed〈/a〉
    Keywords: Adult ; Affect/*physiology ; *Brain Mapping ; Female ; Frontal Lobe/blood supply/*physiology/radionuclide imaging ; Gyrus Cinguli/blood supply/*physiology/radionuclide imaging ; Humans ; Hypnosis ; Male ; Middle Aged ; Pain/*physiopathology/*psychology ; Pain Measurement ; Regional Blood Flow ; Regression Analysis ; Somatosensory Cortex/blood supply/*physiology/radionuclide imaging ; Thermosensing ; Tomography, Emission-Computed
    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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    A mouse model with features of familial combined hyperlipidemia (1997)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1997-01-17
    Description: Familial combined hyperlipidemia (FCHL) is a common inherited lipid disorder, affecting 1 to 2 percent of the population in Westernized societies. Individuals with FCHL have large quantities of very low density lipoprotein (VLDL) and low density lipoprotein (LDL) and develop premature coronary heart disease. A mouse model displaying some of the features of FCHL was created by crossing mice carrying the human apolipoprotein C-III (APOC3) transgene with mice deficient in the LDL receptor. A synergistic interaction between the apolipoprotein C-III and the LDL receptor defects produced large quantities of VLDL and LDL and enhanced the development of atherosclerosis. This mouse model may provide clues to the origin of human FCHL.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Masucci-Magoulas, L -- Goldberg, I J -- Bisgaier, C L -- Serajuddin, H -- Francone, O L -- Breslow, J L -- Tall, A R -- HL 21006/HL/NHLBI NIH HHS/ -- HL 54591/HL/NHLBI NIH HHS/ -- New York, N.Y. -- Science. 1997 Jan 17;275(5298):391-4.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Medicine, Columbia University, 630 West 168 Street, New York, NY 10032, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/8994037" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Apolipoprotein C-III ; Apolipoproteins B/blood ; Apolipoproteins C/*genetics ; Apolipoproteins E/blood ; Arteriosclerosis/etiology ; Carrier Proteins/genetics ; Cholesterol/blood ; Cholesterol Ester Transfer Proteins ; Cholesterol, HDL/blood ; Cholesterol, LDL/blood ; Cholesterol, VLDL/blood ; Diet ; *Disease Models, Animal ; Disease Susceptibility ; Female ; *Glycoproteins ; Humans ; *Hyperlipidemia, Familial Combined/blood/genetics ; Hyperlipoproteinemia Type IV/genetics ; Lipoproteins/blood ; Lipoproteins, VLDL/blood ; Male ; Mice ; Mice, Inbred C57BL ; *Mice, Transgenic ; Receptors, LDL/*genetics/metabolism ; Transgenes ; Triglycerides/blood
    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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    Conditional mutator phenotypes in hMSH2-deficient tumor cell lines (1997)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1997-09-05
    Description: Two human tumor cell lines that are deficient in the mismatch repair protein hMSH2 show little or no increase in mutation rate relative to that of a mismatch repair-proficient cell line when the cells are maintained in culture conditions allowing rapid growth. However, mutations accumulate at a high rate in these cells when they are maintained at high density. Thus the mutator phenotype of some mismatch repair-deficient cell lines is conditional and strongly depends on growth conditions. These observations have implications for tumor development because they suggest that mutations may accumulate in tumor cells when growth is limited.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Richards, B -- Zhang, H -- Phear, G -- Meuth, M -- R01-CA-62244/CA/NCI NIH HHS/ -- T32-CA-09602/CA/NCI NIH HHS/ -- New York, N.Y. -- Science. 1997 Sep 5;277(5331):1523-6.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Oncological Sciences, Eccles Institute of Human Genetics, University of Utah, Salt Lake City, UT, 84112, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/9278518" target="_blank"〉PubMed〈/a〉
    Keywords: *Cell Count ; *Cell Division ; *DNA Repair ; DNA Replication ; *DNA-Binding Proteins ; Drug Resistance, Neoplasm ; Female ; Frameshift Mutation ; Humans ; Hypoxanthine Phosphoribosyltransferase/genetics ; Microsatellite Repeats ; MutS Homolog 2 Protein ; *Mutation ; Neoplasms/*genetics/pathology ; Ouabain/pharmacology ; Ovarian Neoplasms/genetics/pathology ; Phenotype ; Proto-Oncogene Proteins/genetics/*physiology ; Tumor Cells, Cultured ; Uterine Neoplasms/genetics/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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  • 6
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    Thanks to a parasite, asexual reproduction catches on (1997)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1997-03-21
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Enserink, M -- New York, N.Y. -- Science. 1997 Mar 21;275(5307):1743.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/9122678" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Biological Evolution ; Butterflies/parasitology ; Female ; Male ; Moths/parasitology ; Ovum/parasitology ; *Parthenogenesis ; Rickettsiaceae/*physiology ; Wasps/microbiology/*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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  • 7
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    How much pain for cardiac gain? (1997)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1997-05-30
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Barinaga, M -- New York, N.Y. -- Science. 1997 May 30;276(5317):1324-7.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/9190672" target="_blank"〉PubMed〈/a〉
    Keywords: Adult ; Aged ; Centers for Disease Control and Prevention (U.S.) ; Exercise/*physiology/psychology ; Female ; Guidelines as Topic ; Heart Diseases/epidemiology/*prevention & control ; Humans ; Male ; Middle Aged ; Risk Factors ; United States
    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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    Life and death of neurons in the aging brain (1997)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1997-10-23
    Description: Neurodegenerative disorders are characterized by extensive neuron death that leads to functional decline, but the neurobiological correlates of functional decline in normal aging are less well defined. For decades, it has been a commonly held notion that widespread neuron death in the neocortex and hippocampus is an inevitable concomitant of brain aging, but recent quantitative studies suggest that neuron death is restricted in normal aging and unlikely to account for age-related impairment of neocortical and hippocampal functions. In this article, the qualitative and quantitative differences between aging and Alzheimer's disease with respect to neuron loss are discussed, and age-related changes in functional and biochemical attributes of hippocampal circuits that might mediate functional decline in the absence of neuron death are explored. When these data are viewed comprehensively, it appears that the primary neurobiological substrates for functional impairment in aging differ in important ways from those in neurodegenerative disorders such as Alzheimer's disease.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Morrison, J H -- Hof, P R -- AG05138/AG/NIA NIH HHS/ -- AG06647/AG/NIA NIH HHS/ -- MHDA52145/MH/NIMH NIH HHS/ -- New York, N.Y. -- Science. 1997 Oct 17;278(5337):412-9.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Neurobiology of Aging Laboratories, the Fishberg Research Center for Neurobiology, and the Department of Geriatrics and Adult Development, Mount Sinai School of Medicine, New York, NY 10029, USA. morrison@cortex.neuro.mssm.edu〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/9334292" target="_blank"〉PubMed〈/a〉
    Keywords: *Aging ; Alzheimer Disease/pathology ; Animals ; Cell Death ; Cell Survival ; Entorhinal Cortex/pathology ; Estrogens/physiology ; Female ; Hippocampus/cytology/pathology/*physiology ; Humans ; Male ; Memory ; Neocortex/cytology/pathology/*physiology ; *Nerve Degeneration ; Neurofibrillary Tangles/pathology ; Neurofilament Proteins/metabolism ; Neurons/cytology/pathology/*physiology
    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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    Longer tusks are healthy signs (1997)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1997-06-27
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Bagla, P -- New York, N.Y. -- Science. 1997 Jun 27;276(5321):1972.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/9221498" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Commerce ; Elephants/*anatomy & histology/genetics/*parasitology ; Female ; Helminthiasis, Animal/*immunology ; Immunity, Innate ; Incisor/anatomy & histology ; Male ; Parasite Egg Count/veterinary ; Sexual Behavior, Animal
    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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    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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  • 11
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    Estrogen stakes claim to cognition (1997)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1997-05-02
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Wickelgren, I -- New York, N.Y. -- Science. 1997 May 2;276(5313):675-8.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/9157544" target="_blank"〉PubMed〈/a〉
    Keywords: Alzheimer Disease/*drug therapy ; Animals ; Antioxidants/pharmacology ; Brain/cytology/metabolism ; Choline O-Acetyltransferase/metabolism ; Cognition/drug effects/*physiology ; Controlled Clinical Trials as Topic ; Estrogens/pharmacology/*physiology/therapeutic use ; Female ; Humans ; Male ; Memory/drug effects/*physiology ; Nerve Growth Factors/metabolism ; Receptors, N-Methyl-D-Aspartate/metabolism ; Synapses/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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  • 12
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    Subtle, secret female chimpanzees (1997)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1997-08-08
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Wrangham, R W -- New York, N.Y. -- Science. 1997 Aug 8;277(5327):774-5.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Anthropology, Harvard University, Cambridge, MA 02138, USA. wrangham@fas.harvard.edu〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/9273699" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Female ; Male ; Pan troglodytes/*psychology ; *Reproduction ; *Sexual Behavior, Animal ; *Social Dominance
    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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  • 13
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    The many faces of WAS protein (1997)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1997-01-03
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Featherstone, C -- New York, N.Y. -- Science. 1997 Jan 3;275(5296):27-8.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/8999530" target="_blank"〉PubMed〈/a〉
    Keywords: Actins/*metabolism/ultrastructure ; Adaptor Proteins, Signal Transducing ; Cell Cycle Proteins/*metabolism ; Cell Division ; Cell Membrane/metabolism/ultrastructure ; Cytoskeleton/metabolism/ultrastructure ; GTP-Binding Proteins/*metabolism ; Humans ; Male ; Oncogene Proteins/metabolism ; Protein-Tyrosine Kinases/metabolism ; Proteins/genetics/*metabolism ; Proto-Oncogene Proteins/metabolism ; Proto-Oncogene Proteins c-fyn ; *Signal Transduction ; Wiskott-Aldrich Syndrome/genetics/*metabolism ; Wiskott-Aldrich Syndrome Protein ; cdc42 GTP-Binding Protein ; src Homology Domains
    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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  • 14
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    Trafficking of matrix collagens through bone-resorbing osteoclasts (1997)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1997-04-11
    Description: An intracellular pathway for proteins liberated from mineralized matrix during resorption was identified in osteoclasts. Analysis by confocal microscopy of sites of active bone resorption showed that released matrix proteins, including degraded type I collagen, were endocytosed along the ruffled border within the resorption compartment and transcytosed through the osteoclast to the basolateral membrane. Intracellular trafficking of degraded collagen, as typified by the resorbing osteoclast, may provide the cell with a regulatory mechanism for the control of tissue degradation.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Nesbitt, S A -- Horton, M A -- Wellcome Trust/United Kingdom -- New York, N.Y. -- Science. 1997 Apr 11;276(5310):266-9.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Bone and Mineral Centre, Department of Medicine, University College London Medical School, University College London, London WIN 8AA, UK.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/9092478" target="_blank"〉PubMed〈/a〉
    Keywords: Bone Matrix/*metabolism ; *Bone Resorption ; Cell Membrane/metabolism/ultrastructure ; Collagen/*metabolism ; Dentin/metabolism ; *Endocytosis ; Humans ; Microscopy, Confocal ; Osteoclasts/*metabolism/ultrastructure ; 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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  • 15
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    A new way to resist AIDS? (1997)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1997-02-28
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Kaiser, J -- New York, N.Y. -- Science. 1997 Feb 28;275(5304):1258.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/9064779" target="_blank"〉PubMed〈/a〉
    Keywords: Acquired Immunodeficiency Syndrome/*immunology/virology ; CD4-Positive T-Lymphocytes/immunology/*virology ; Cells, Cultured ; HIV/*physiology ; Humans ; Immunity, Innate ; Male ; Virus Replication
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  • 16
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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
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  • 17
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    Quantitative trait loci for refractoriness of Anopheles gambiae to Plasmodium cynomolgi B (1997)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1997-04-18
    Description: The severity of the malaria pandemic in the tropics is aggravated by the ongoing spread of parasite resistance to antimalarial drugs and mosquito resistance to insecticides. A strain of Anopheles gambiae, normally a major vector for human malaria in Africa, can encapsulate and kill the malaria parasites within a melanin-rich capsule in the mosquito midgut. Genetic mapping revealed one major and two minor quantitative trait loci (QTLs) for this encapsulation reaction. Understanding such antiparasite mechanisms in mosquitoes may lead to new strategies for malaria control.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Zheng, L -- Cornel, A J -- Wang, R -- Erfle, H -- Voss, H -- Ansorge, W -- Kafatos, F C -- Collins, F H -- New York, N.Y. -- Science. 1997 Apr 18;276(5311):425-8.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉European Molecular Biology Laboratory, Meyerhofstrasse 1, 69117 Heidelberg, Germany. Disease Control and Prevention, 4770 Buford Hi.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/9103203" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Anopheles/*genetics/immunology/*parasitology ; Chromosome Mapping ; Crosses, Genetic ; Female ; *Genes, Insect ; Genotype ; Insect Vectors/*genetics/immunology/*parasitology ; Lod Score ; Male ; Melanins/physiology ; Microsatellite Repeats ; Phenotype ; Plasmodium cynomolgi/*immunology
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  • 18
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    Rapid colorectal adenoma formation initiated by conditional targeting of the Apc gene (1997)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1997-10-06
    Description: Familial adenomatous polyposis coli (FAP) is a disease characterized by the development of multiple colorectal adenomas, and affected individuals carry germline mutations in the APC gene. With the use of a conditional gene targeting system, a mouse model of FAP was created that circumvents the embryonic lethality of Apc deficiency and directs Apc inactivation specifically to the colorectal epithelium. loxP sites were inserted into the introns around Apc exon 14, and the resultant mutant allele (Apc580S) was introduced into the mouse germline. Mice homozygous for Apc580S were normal; however, upon infection of the colorectal region with an adenovirus encoding the Cre recombinase, the mice developed adenomas within 4 weeks. The adenomas showed deletion of Apc exon 14, indicating that the loss of Apc function was caused by Cre-loxP-mediated recombination.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Shibata, H -- Toyama, K -- Shioya, H -- Ito, M -- Hirota, M -- Hasegawa, S -- Matsumoto, H -- Takano, H -- Akiyama, T -- Toyoshima, K -- Kanamaru, R -- Kanegae, Y -- Saito, I -- Nakamura, Y -- Shiba, K -- Noda, T -- New York, N.Y. -- Science. 1997 Oct 3;278(5335):120-3.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Cell Biology, Cancer Institute, Toshima-ku, Tokyo 170, Japan.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/9311916" target="_blank"〉PubMed〈/a〉
    Keywords: Adenomatous Polyposis Coli/*genetics ; Adenomatous Polyposis Coli Protein ; Adenoviridae/genetics ; Animals ; Colon/metabolism ; Cytoskeletal Proteins/biosynthesis ; Disease Models, Animal ; Exons ; Female ; Frameshift Mutation ; Gene Deletion ; *Gene Targeting ; *Genes, APC ; Genetic Vectors ; Germ-Line Mutation ; Homozygote ; Integrases/genetics/metabolism ; Introns ; Male ; Mice ; Mice, Inbred C57BL ; Recombination, Genetic ; *Viral Proteins
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  • 19
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    Caspase-3-generated fragment of gelsolin: effector of morphological change in apoptosis (1997)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1997-10-10
    Description: The caspase-3 (CPP32, apopain, YAMA) family of cysteinyl proteases has been implicated as key mediators of apoptosis in mammalian cells. Gelsolin was identified as a substrate for caspase-3 by screening the translation products of small complementary DNA pools for sensitivity to cleavage by caspase-3. Gelsolin was cleaved in vivo in a caspase-dependent manner in cells stimulated by Fas. Caspase-cleaved gelsolin severed actin filaments in vitro in a Ca2+-independent manner. Expression of the gelsolin cleavage product in multiple cell types caused the cells to round up, detach from the plate, and undergo nuclear fragmentation. Neutrophils isolated from mice lacking gelsolin had delayed onset of both blebbing and DNA fragmentation, following apoptosis induction, compared with wild-type neutrophils. Thus, cleaved gelsolin may be one physiological effector of morphologic change during apoptosis.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Kothakota, S -- Azuma, T -- Reinhard, C -- Klippel, A -- Tang, J -- Chu, K -- McGarry, T J -- Kirschner, M W -- Koths, K -- Kwiatkowski, D J -- Williams, L T -- P01 HL48743/HL/NHLBI NIH HHS/ -- R01 HL54188/HL/NHLBI NIH HHS/ -- New York, N.Y. -- Science. 1997 Oct 10;278(5336):294-8.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Chiron Corporation, Emeryville, CA 94608, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/9323209" target="_blank"〉PubMed〈/a〉
    Keywords: Actins/metabolism ; Amino Acid Chloromethyl Ketones/pharmacology ; Animals ; Antigens, CD95/physiology ; *Apoptosis ; Caspase 3 ; *Caspases ; Cell Line ; *Cell Size ; Cycloheximide/pharmacology ; Cysteine Endopeptidases/*metabolism ; Cysteine Proteinase Inhibitors/pharmacology ; Cytoskeleton/metabolism ; DNA Fragmentation ; Gelsolin/*metabolism ; Humans ; Mice ; Neutrophils/cytology/metabolism ; Recombinant Proteins/metabolism ; Transfection ; Tumor Cells, Cultured ; Tumor Necrosis Factor-alpha/pharmacology
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  • 20
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    Antagonism of central melanocortin receptors in vitro and in vivo by agouti-related protein (1997)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1997-10-06
    Description: Expression of Agouti protein is normally limited to the skin where it affects pigmentation, but ubiquitous expression causes obesity. An expressed sequence tag was identified that encodes Agouti-related protein, whose RNA is normally expressed in the hypothalamus and whose levels were increased eightfold in ob/ob mice. Recombinant Agouti-related protein was a potent, selective antagonist of Mc3r and Mc4r, melanocortin receptor subtypes implicated in weight regulation. Ubiquitous expression of human AGRP complementary DNA in transgenic mice caused obesity without altering pigmentation. Thus, Agouti-related protein is a neuropeptide implicated in the normal control of body weight downstream of leptin signaling.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Ollmann, M M -- Wilson, B D -- Yang, Y K -- Kerns, J A -- Chen, Y -- Gantz, I -- Barsh, G S -- EY07106/EY/NEI NIH HHS/ -- GM07365/GM/NIGMS NIH HHS/ -- P30DK-34933/DK/NIDDK NIH HHS/ -- etc. -- New York, N.Y. -- Science. 1997 Oct 3;278(5335):135-8.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Pediatrics, Howard Hughes Medical Institute, 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/9311920" target="_blank"〉PubMed〈/a〉
    Keywords: Adrenal Glands/metabolism ; Amino Acid Sequence ; Animals ; Female ; Humans ; Hypothalamus/metabolism ; Male ; Melanocyte-Stimulating Hormones/antagonists & inhibitors/pharmacology ; Melanophores/metabolism ; Mice ; Mice, Inbred C57BL ; Mice, Inbred CBA ; Mice, Obese ; Mice, Transgenic ; Molecular Sequence Data ; Obesity/etiology ; Organophosphorus Compounds/pharmacology ; Proteins/chemistry/genetics/pharmacology/*physiology ; RNA/genetics/metabolism ; Receptor, Melanocortin, Type 3 ; Receptor, Melanocortin, Type 4 ; Receptors, Corticotropin/*antagonists & inhibitors/metabolism ; Receptors, Peptide/*antagonists & inhibitors/metabolism ; Recombinant Proteins/metabolism ; Signal Transduction ; Xenopus
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  • 21
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    Constitutive transcriptional activation by a beta-catenin-Tcf complex in APC-/- colon carcinoma (1997)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1997-03-21
    Description: The adenomatous polyposis coli (APC) tumor suppressor protein binds to beta-catenin, a protein recently shown to interact with Tcf and Lef transcription factors. The gene encoding hTcf-4, a Tcf family member that is expressed in colonic epithelium, was cloned and characterized. hTcf-4 transactivates transcription only when associated with beta-catenin. Nuclei of APC-/- colon carcinoma cells were found to contain a stable beta-catenin-hTcf-4 complex that was constitutively active, as measured by transcription of a Tcf reporter gene. Reintroduction of APC removed beta-catenin from hTcf-4 and abrogated the transcriptional transactivation. Constitutive transcription of Tcf target genes, caused by loss of APC function, may be a crucial event in the early transformation of colonic epithelium.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Korinek, V -- Barker, N -- Morin, P J -- van Wichen, D -- de Weger, R -- Kinzler, K W -- Vogelstein, B -- Clevers, H -- CA57345/CA/NCI NIH HHS/ -- New York, N.Y. -- Science. 1997 Mar 21;275(5307):1784-7.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Immunology, University Hospital, Post Office Box 85500, 3508 GA Utrecht, Netherlands.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/9065401" target="_blank"〉PubMed〈/a〉
    Keywords: Adenomatous Polyposis Coli Protein ; Amino Acid Sequence ; Animals ; Cell Line ; Cell Transformation, Neoplastic ; Cloning, Molecular ; Colon/metabolism ; Colonic Neoplasms/*genetics/metabolism ; Cytoskeletal Proteins/genetics/*metabolism ; Gene Expression Regulation, Neoplastic ; *Genes, APC ; Genes, Reporter ; Humans ; Intestinal Mucosa/metabolism ; Mice ; Molecular Sequence Data ; Signal Transduction ; TCF Transcription Factors ; *Trans-Activators ; Transcription Factor 7-Like 2 Protein ; Transcription Factors/chemistry/genetics/*metabolism ; *Transcriptional Activation ; Transfection ; Tumor Cells, Cultured ; beta Catenin
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  • 22
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    When should fatherhood stop? (1997)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1997-07-04
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Gavrilov, L A -- Gavrilova, N S -- New York, N.Y. -- Science. 1997 Jul 4;277(5322):17-8.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/9229762" target="_blank"〉PubMed〈/a〉
    Keywords: Female ; Humans ; *Longevity ; Male ; *Nuclear Family ; *Paternal Age
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  • 23
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    The origin of dogs: running with the wolves (1997)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1997-06-13
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Morell, V -- New York, N.Y. -- Science. 1997 Jun 13;276(5319):1647-8.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/9206828" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; *Biological Evolution ; Breeding ; Carnivora/*genetics ; Crosses, Genetic ; DNA, Mitochondrial/*genetics ; Dogs/*genetics ; Female ; Haplotypes ; Male
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  • 24
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    Requirement for the transcription factor LSIRF/IRF4 for mature B and T lymphocyte function (1997)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1997-01-24
    Description: Lymphocyte-specific interferon regulatory factor (LSIRF) (now called IRF4) is a transcription factor expressed only in lymphocytes. Mice deficient in IRF4 showed normal distribution of B and T lymphocyes at 4 to 5 weeks of age but developed progressive generalized lymphadenopathy. IRF4-deficient mice exhibited a profound reduction in serum immunoglobulin concentrations and did not mount detectable antibody responses. T lymphocyte function was also impaired in vivo; these mice could not generate cytotoxic or antitumor responses. Thus, IRF4 is essential for the function and homeostasis of both mature B and mature T lymphocytes.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Mittrucker, H W -- Matsuyama, T -- Grossman, A -- Kundig, T M -- Potter, J -- Shahinian, A -- Wakeham, A -- Patterson, B -- Ohashi, P S -- Mak, T W -- New York, N.Y. -- Science. 1997 Jan 24;275(5299):540-3.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Immunology, University of Toronto, Toronto, Ontario, M5G 2C1, Canada.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/8999800" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Antigen Presentation ; B-Lymphocytes/*immunology ; Bone Marrow Cells ; Cytotoxicity, Immunologic ; DNA-Binding Proteins/genetics/*physiology ; Female ; Gene Targeting ; Graft vs Host Reaction ; Immunization ; Immunoglobulins/blood ; Interferon Regulatory Factors ; Lymphatic Diseases/etiology ; Lymphocyte Activation ; Lymphocyte Subsets/cytology ; Lymphoid Tissue/cytology ; Male ; Mast-Cell Sarcoma/immunology ; Mice ; Mice, Inbred C57BL ; Mice, SCID ; Neoplasm Transplantation ; T-Lymphocytes/*immunology ; T-Lymphocytes, Cytotoxic/immunology ; Transcription Factors/genetics/*physiology
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  • 25
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    Fyn-kinase as a determinant of ethanol sensitivity: relation to NMDA-receptor function (1997)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1997-10-24
    Description: Animals vary in their sensitivity to ethanol, a trait at least partly determined by genetic factors. In order to identify possible responsible genes, mice lacking Fyn, a non-receptor type tyrosine kinase, were investigated. These mice were hypersensitive to the hypnotic effect of ethanol. The administration of ethanol enhanced tyrosine phosphorylation of the N-methyl-D-aspartate receptor (NMDAR) in the hippocampus of control mice but not in Fyn-deficient mice. An acute tolerance to ethanol inhibition of NMDAR-mediated excitatory postsynaptic potentials in hippocampal slices developed in control mice but not in Fyn-deficient mice. These results indicate that Fyn affects behavioral, biochemical, and physiological responses to ethanol.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Miyakawa, T -- Yagi, T -- Kitazawa, H -- Yasuda, M -- Kawai, N -- Tsuboi, K -- Niki, H -- New York, N.Y. -- Science. 1997 Oct 24;278(5338):698-701.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Laboratory for Neurobiology of Emotion, Brain Science Institute, RIKEN, Hirosawa, Wako-shi, Saitama-ken 351-01, Japan.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/9381182" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Central Nervous System Depressants/*pharmacology ; Ethanol/*pharmacology ; Excitatory Postsynaptic Potentials/drug effects ; Flurazepam/pharmacology ; Hippocampus/metabolism ; Hypnotics and Sedatives/pharmacology ; In Vitro Techniques ; Male ; Mice ; Mice, Knockout ; Motor Activity/*drug effects ; N-Methylaspartate/pharmacology ; Phosphorylation ; Phosphotyrosine/metabolism ; Protein-Tyrosine Kinases/deficiency/genetics/*metabolism ; Proto-Oncogene Proteins/deficiency/genetics/*metabolism ; Proto-Oncogene Proteins c-fyn ; Receptors, N-Methyl-D-Aspartate/*metabolism
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  • 26
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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
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  • 27
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    Control of TRAIL-induced apoptosis by a family of signaling and decoy receptors (1997)
    American Association for the Advancement of Science (AAAS)
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    Publication Date: 1997-08-08
    Description: TRAIL (also called Apo2L) belongs to the tumor necrosis factor family, activates rapid apoptosis in tumor cells, and binds to the death-signaling receptor DR4. Two additional TRAIL receptors were identified. The receptor designated death receptor 5 (DR5) contained a cytoplasmic death domain and induced apoptosis much like DR4. The receptor designated decoy receptor 1 (DcR1) displayed properties of a glycophospholipid-anchored cell surface protein. DcR1 acted as a decoy receptor that inhibited TRAIL signaling. Thus, a cell surface mechanism exists for the regulation of cellular responsiveness to pro-apoptotic stimuli.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Sheridan, J P -- Marsters, S A -- Pitti, R M -- Gurney, A -- Skubatch, M -- Baldwin, D -- Ramakrishnan, L -- Gray, C L -- Baker, K -- Wood, W I -- Goddard, A D -- Godowski, P -- Ashkenazi, A -- New York, N.Y. -- Science. 1997 Aug 8;277(5327):818-21.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Molecular Oncology, Genentech, South San Francisco, CA 94080-4918, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/9242611" target="_blank"〉PubMed〈/a〉
    Keywords: Amino Acid Sequence ; *Apoptosis ; Apoptosis Regulatory Proteins ; Cell Membrane/metabolism ; Cells, Cultured ; GPI-Linked Proteins ; Glycosylphosphatidylinositols/metabolism ; HeLa Cells ; Humans ; Ligands ; Membrane Glycoproteins/*metabolism ; Molecular Sequence Data ; NF-kappa B/metabolism ; Receptors, TNF-Related Apoptosis-Inducing Ligand ; Receptors, Tumor Necrosis Factor/chemistry/genetics/*metabolism ; Signal Transduction ; TNF-Related Apoptosis-Inducing Ligand ; Transfection ; Tumor Cells, Cultured ; Tumor Necrosis Factor Decoy Receptors ; Tumor Necrosis Factor-alpha/*metabolism
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  • 28
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    Genetic feminization of pheromones and its behavioral consequences in Drosophila males (1997)
    American Association for the Advancement of Science (AAAS)
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    Publication Date: 1997-06-06
    Description: Pheromones are intraspecific chemical signals important for mate attraction and discrimination. In the fruit fly Drosophila melanogaster, hydrocarbons on the cuticular surface of the animal are sexually dimorphic in both their occurrence and their effects: Female-specific molecules stimulate male sexual excitation, whereas the predominant male-specific molecule tends to inhibit male excitation. Complete feminization of the pheromone mixture produced by males was induced by targeted expression of the transformer gene in adult oenocytes (subcuticular abdominal cells) or by ubiquitous expression during early imaginal life. The resulting flies generally exhibited male heterosexual orientation but elicited homosexual courtship from other males.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Ferveur, J F -- Savarit, F -- O'Kane, C J -- Sureau, G -- Greenspan, R J -- Jallon, J M -- Wellcome Trust/United Kingdom -- New York, N.Y. -- Science. 1997 Jun 6;276(5318):1555-8.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Mecanismes de communication, Unite de Recherche Associee-CNRS 1491, Batiment 446, Universite Paris-Sud, 91405, Orsay-Cedex, France. ferveur@ext.jussieu.fr〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/9171057" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Drosophila melanogaster ; Female ; Gene Expression Regulation, Developmental ; Homosexuality ; Male ; Nuclear Proteins/genetics/physiology ; Recombinant Fusion Proteins ; Sex Attractants/genetics/*physiology ; *Sex Characteristics ; Sex Differentiation ; *Sexual Behavior, Animal/physiology ; Transgenes
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    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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    Neighborhoods and violent crime: a multilevel study of collective efficacy (1997)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1997-08-15
    Description: It is hypothesized that collective efficacy, defined as social cohesion among neighbors combined with their willingness to intervene on behalf of the common good, is linked to reduced violence. This hypothesis was tested on a 1995 survey of 8782 residents of 343 neighborhoods in Chicago, Illinois. Multilevel analyses showed that a measure of collective efficacy yields a high between-neighborhood reliability and is negatively associated with variations in violence, when individual-level characteristics, measurement error, and prior violence are controlled. Associations of concentrated disadvantage and residential instability with violence are largely mediated by collective efficacy.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Sampson, R J -- Raudenbush, S W -- Earls, F -- New York, N.Y. -- Science. 1997 Aug 15;277(5328):918-24.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Sociology, University of Chicago, Chicago, IL 60637, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/9252316" target="_blank"〉PubMed〈/a〉
    Keywords: Chicago ; Female ; Humans ; Male ; Models, Statistical ; *Residence Characteristics ; Social Conditions ; *Social Control, Informal ; *Social Environment ; Social Values ; Socioeconomic Factors ; *Violence
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    Neural correlates of motor memory consolidation (1997)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1997-08-08
    Description: Computational studies suggest that acquisition of a motor skill involves learning an internal model of the dynamics of the task, which enables the brain to predict and compensate for mechanical behavior. During the hours that follow completion of practice, representation of the internal model gradually changes, becoming less fragile with respect to behavioral interference. Here, functional imaging of the brain demonstrates that within 6 hours after completion of practice, while performance remains unchanged, the brain engages new regions to perform the task; there is a shift from prefrontal regions of the cortex to the premotor, posterior parietal, and cerebellar cortex structures. This shift is specific to recall of an established motor skill and suggests that with the passage of time, there is a change in the neural representation of the internal model and that this change may underlie its increased functional stability.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Shadmehr, R -- Holcomb, H H -- New York, N.Y. -- Science. 1997 Aug 8;277(5327):821-5.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Biomedical Engineering, School of Medicine, Johns Hopkins University, 720 Rutland Avenue, 419 Traylor, Baltimore, MD 21205-2195, USA. reza@bme.jhu.edu〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/9242612" target="_blank"〉PubMed〈/a〉
    Keywords: Adult ; Brain Mapping ; Cerebellar Cortex/blood supply/*physiology/radionuclide imaging ; Humans ; Learning ; Male ; *Memory ; Motor Cortex/blood supply/*physiology/radionuclide imaging ; *Motor Skills ; Parietal Lobe/blood supply/*physiology/radionuclide imaging ; Prefrontal Cortex/blood supply/*physiology/radionuclide imaging ; Putamen/blood supply/physiology/radionuclide imaging ; Regional Blood Flow ; Time Factors ; Tomography, Emission-Computed
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    Separate neural bases of two fundamental memory processes in the human medial temporal lobe (1997)
    American Association for the Advancement of Science (AAAS)
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    Publication Date: 1997-04-11
    Description: The participation of medial temporal-lobe structures in memory performance was examined by functional magnetic resonance imaging of local blood oxygenation level-dependent signals. Signals were measured during encoding into memory complex scenes or line drawings and during retrieval from memory of previously studied line drawings or words. Encoding tasks yielded increased signals for unfamiliar information in a posterior medial-temporal region that were focused in the parahippocampal cortex. Retrieval tasks yielded increased signals for successfully remembered information in an anterior medial-temporal region that were focused in the subiculum. These results indicate that separate components of the human medial temporal-lobe memory system are active during distinct memory processes.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Gabrieli, J D -- Brewer, J B -- Desmond, J E -- Glover, G H -- New York, N.Y. -- Science. 1997 Apr 11;276(5310):264-6.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Psychology and Neuroscience Program, Stanford University, Stanford, CA 94305, USA. gabrieli@psych.stanford.edu〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/9092477" target="_blank"〉PubMed〈/a〉
    Keywords: Adult ; Brain Mapping ; Female ; Hippocampus/physiology ; Humans ; Magnetic Resonance Imaging ; Male ; Memory/*physiology ; Mental Recall/*physiology ; Temporal Lobe/*physiology
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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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    Independent and additive effects of central POMC and leptin pathways on murine obesity (1997)
    American Association for the Advancement of Science (AAAS)
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    Publication Date: 1997-12-31
    Description: The lethal yellow (AY/a) mouse has a defect in proopiomelanocortin (POMC) signaling in the brain that leads to obesity, and is resistant to the anorexigenic effects of the hormone leptin. It has been proposed that the weight-reducing effects of leptin are thus transmitted primarily by way of POMC neurons. However, the central effects of defective POMC signaling, and the absence of leptin, on weight gain in double-mutant lethal yellow (AY/a) leptin-deficient (lepob/lepob) mice were shown to be independent and additive. Furthermore, deletion of the leptin gene restored leptin sensitivity to AY/a mice. This result implies that in the AY/a mouse, obesity is independent of leptin action, and resistance to leptin results from desensitization of leptin signaling.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Boston, B A -- Blaydon, K M -- Varnerin, J -- Cone, R D -- DK/AR517330/DK/NIDDK NIH HHS/ -- DK02404/DK/NIDDK NIH HHS/ -- HD33703/HD/NICHD NIH HHS/ -- New York, N.Y. -- Science. 1997 Nov 28;278(5343):1641-4.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Pediatrics, Oregon Health Sciences University, Portland, OR 97201, USA. Laboratories, Rahway, NJ 07065, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/9374468" target="_blank"〉PubMed〈/a〉
    Keywords: Adrenalectomy ; Agouti Signaling Protein ; Alleles ; Animals ; Arcuate Nucleus of Hypothalamus/*metabolism ; Blood Glucose/analysis ; Corticosterone/blood ; Crosses, Genetic ; Eating/drug effects ; Energy Metabolism ; Female ; Homeostasis ; Insulin/blood ; *Intercellular Signaling Peptides and Proteins ; Leptin ; Male ; Mice ; Mice, Inbred C57BL ; Mice, Obese ; Neurons/metabolism ; Obesity/genetics/*metabolism ; Pro-Opiomelanocortin/*metabolism ; Proteins/genetics/*metabolism/pharmacology ; Signal Transduction ; Weight Gain
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    Modulation of hepatic gene expression by hepatocyte nuclear factor 1 (1997)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1997-07-04
    Description: Hepatocyte nuclear factors 1 and 4 (HNF-1 and HNF-4) are liver-enriched transcription factors that function in the regulation of several liver-specific genes. HNF-1 activates genes containing promoters with HNF-1 binding sites. However, this factor negatively regulates its own expression and that of other HNF-4-dependent genes that lack HNF-1 binding sites in their promoter region. This repression is exerted by a direct interaction of HNF-1 with AF2, the main activation domain of HNF-4. The dual functions of gene activation and repression suggest that HNF-1 is a global regulator of the transcriptional network involved in the maintenance of hepatocyte-specific phenotype.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Ktistaki, E -- Talianidis, I -- New York, N.Y. -- Science. 1997 Jul 4;277(5322):109-12.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Institute of Molecular Biology and Biotechnology, Foundation for Research and Technology-Hellas, Post Office Box 1527, 711 10 Heraklion, Crete, Greece.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/9204893" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Basic Helix-Loop-Helix Leucine Zipper Transcription Factors ; Binding Sites ; COS Cells ; *DNA-Binding Proteins ; *Gene Expression Regulation ; Hepatocyte Nuclear Factor 1 ; Hepatocyte Nuclear Factor 1-alpha ; Hepatocyte Nuclear Factor 1-beta ; Hepatocyte Nuclear Factor 4 ; Humans ; Liver/cytology/*metabolism ; Nuclear Proteins/genetics/metabolism ; Phosphoproteins/genetics/metabolism ; Promoter Regions, Genetic ; RNA, Messenger/genetics/metabolism ; Recombinant Fusion Proteins/metabolism ; Transcription Factors/*genetics/*metabolism ; Transcriptional Activation ; Tumor Cells, Cultured
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    Environment and cancer: who are susceptible? (1997)
    American Association for the Advancement of Science (AAAS)
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    Publication Date: 1997-11-14
    Description: Acting in concert with individual susceptibility, environmental factors such as smoking, diet, and pollutants play a role in most human cancer. However, new molecular evidence indicates that specific groups-characterized by predisposing genetic traits or ethnicity, the very young, and women-may have heightened risk from certain exposures. This is illustrated by molecular epidemiologic studies of environmental carcinogens such as polycyclic aromatic hydrocarbons and aromatic amines. Individual genetic screening for rare high-risk traits or for more common, low-penetrant susceptibility genes is problematic and not routinely recommended. However, knowledge of the full spectrum of both genetic and acquired susceptibility in the population will be instrumental in developing health and regulatory policies that increase protection of the more susceptible groups from risks of environmental carcinogens. This will necessitate revision of current risk assessment methodologies to explicitly account for individual variation in susceptibility to environmental carcinogens.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Perera, F P -- New York, N.Y. -- Science. 1997 Nov 7;278(5340):1068-73.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Division of Environmental Health Sciences, Columbia University School of Public Health, 60 Haven Avenue, B-1, New York, NY 10032, USA. fpp1@columbia.edu〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/9353182" target="_blank"〉PubMed〈/a〉
    Keywords: *Aging ; Amines/adverse effects ; Carcinogens, Environmental/*adverse effects ; Continental Population Groups ; Female ; *Genetic Predisposition to Disease ; Humans ; Male ; Neoplasms/chemically induced/ethnology/*etiology/genetics/prevention & control ; Nutritional Physiological Phenomena ; Polycyclic Hydrocarbons, Aromatic/adverse effects ; Risk Factors ; *Sex Characteristics
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    Identification of a chemokine receptor encoded by human cytomegalovirus as a cofactor for HIV-1 entry (1997)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1997-06-20
    Description: The human cytomegalovirus encodes a beta-chemokine receptor (US28) that is distantly related to the human chemokine receptors CCR5 and CXCR4, which also serve as cofactors for the entry into cells of human immunodeficiency virus-type 1 (HIV-1). Like CCR5, US28 allowed infection of CD4-positive human cell lines by primary isolates of HIV-1 and HIV-2, as well as fusion of these cell lines with cells expressing the viral envelope proteins. In addition, US28 mediated infection by cell line-adapted HIV-1 for which CXCR4 was an entry cofactor.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Pleskoff, O -- Treboute, C -- Brelot, A -- Heveker, N -- Seman, M -- Alizon, M -- New York, N.Y. -- Science. 1997 Jun 20;276(5320):1874-8.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Inserm U.332, Institut Cochin de Genetique Moleculaire, 22 rue Mechain, 75014 Paris, France.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/9188536" target="_blank"〉PubMed〈/a〉
    Keywords: AIDS-Related Opportunistic Infections/virology ; Amino Acid Sequence ; Cell Fusion ; Chemokines ; Coculture Techniques ; Cytomegalovirus/*genetics/physiology ; Cytomegalovirus Infections/virology ; Giant Cells ; HIV Infections/virology ; HIV-1/*physiology ; HIV-2/*physiology ; HeLa Cells ; Humans ; Membrane Proteins/physiology ; Molecular Sequence Data ; Receptors, CCR2 ; Receptors, CCR5 ; Receptors, CXCR4 ; *Receptors, Chemokine ; Receptors, Cytokine/genetics/*physiology ; Receptors, HIV/genetics/*physiology ; Transfection ; Tumor Cells, Cultured ; Viral Proteins/genetics/*physiology
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    Cystic fibrosis transmembrane conductance regulator and adenosine triphosphate (1997)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1997-02-28
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Abraham, E H -- Okunieff, P -- Scala, S -- Vos, P -- Oosterveld, M J -- Chen, A Y -- Shrivastav, B -- New York, N.Y. -- Science. 1997 Feb 28;275(5304):1324-6.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/9064787" target="_blank"〉PubMed〈/a〉
    Keywords: ATP-Binding Cassette Transporters/metabolism ; Adenosine Triphosphate/*metabolism ; Biological Transport ; Cell Membrane/*metabolism ; Cystic Fibrosis Transmembrane Conductance Regulator/*metabolism ; Humans ; P-Glycoprotein/metabolism ; Tumor Cells, Cultured
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    A mammalian telomerase-associated protein (1997)
    American Association for the Advancement of Science (AAAS)
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    Publication Date: 1997-02-14
    Description: The telomerase ribonucleoprotein catalyzes the addition of new telomeres onto chromosome ends. A gene encoding a mammalian telomerase homolog called TP1 (telomerase-associated protein 1) was identified and cloned. TP1 exhibited extensive amino acid similarity to the Tetrahymena telomerase protein p80 and was shown to interact specifically with mammalian telomerase RNA. Antiserum to TP1 immunoprecipitated telomerase activity from cell extracts, suggesting that TP1 is associated with telomerase in vivo. The identification of TP1 suggests that telomerase-associated proteins are conserved from ciliates to humans.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Harrington, L -- McPhail, T -- Mar, V -- Zhou, W -- Oulton, R -- Bass, M B -- Arruda, I -- Robinson, M O -- New York, N.Y. -- Science. 1997 Feb 14;275(5302):973-7.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Arruda, Ontario Cancer Institute-Amgen Institute, Department of Medical Biophysics, University of Toronto, 620 University Avenue, Toronto, Ontario M5G 2C1, Canada.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/9020079" target="_blank"〉PubMed〈/a〉
    Keywords: Amino Acid Sequence ; Animals ; Blotting, Northern ; Carrier Proteins/*chemistry/genetics/immunology/*metabolism ; Cell Line ; Cloning, Molecular ; DNA, Complementary/genetics ; Humans ; Mice ; Molecular Sequence Data ; Precipitin Tests ; RNA/*metabolism ; RNA, Messenger/genetics/metabolism ; Sequence Homology, Amino Acid ; Telomerase/*chemistry/genetics/metabolism ; Tetrahymena/chemistry/genetics ; Transfection ; Tumor Cells, Cultured
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    Requirement for GD3 ganglioside in CD95- and ceramide-induced apoptosis (1997)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1997-09-12
    Description: Gangliosides participate in development and tissue differentiation. Cross-linking of the apoptosis-inducing CD95 protein (also called Fas or APO-1) in lymphoid and myeloid tumor cells triggered GD3 ganglioside synthesis and transient accumulation. CD95-induced GD3 accumulation depended on integral receptor "death domains" and on activation of a family of cysteine proteases called caspases. Cell-permeating ceramides, which are potent inducers of apoptosis, also triggered GD3 synthesis. GD3 disrupted mitochondrial transmembrane potential (DeltaPsim), and induced apoptosis, in a caspase-independent fashion. Transient overexpression of the GD3 synthase gene directly triggered apoptosis. Pharmacological inhibition of GD3 synthesis and exposure to GD3 synthase antisense oligodeoxynucleotides prevented CD95-induced apoptosis. Thus, GD3 ganglioside mediates the propagation of CD95-generated apoptotic signals in hematopoietic cells.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉De Maria, R -- Lenti, L -- Malisan, F -- d'Agostino, F -- Tomassini, B -- Zeuner, A -- Rippo, M R -- Testi, R -- New York, N.Y. -- Science. 1997 Sep 12;277(5332):1652-5.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Experimental Medicine and Biochemical Sciences, University of Rome "Tor Vergata," 00133 Rome, Italy.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/9287216" target="_blank"〉PubMed〈/a〉
    Keywords: Antigens, CD95/metabolism/*physiology ; *Apoptosis ; Ceramides/pharmacology/*physiology ; Cysteine Endopeptidases/metabolism ; Cysteine Proteinase Inhibitors/pharmacology ; Enzyme Inhibitors/pharmacology ; Gangliosides/biosynthesis/*metabolism/pharmacology ; Golgi Apparatus/metabolism ; Humans ; Membrane Potentials ; Mitochondria/physiology ; Morpholines/pharmacology ; Oligonucleotides, Antisense/pharmacology ; Sialyltransferases/genetics/metabolism ; Signal Transduction ; Transfection ; Tumor Cells, Cultured
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    Attentional activation of the cerebellum independent of motor involvement (1997)
    American Association for the Advancement of Science (AAAS)
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    Publication Date: 1997-03-28
    Description: The cerebellum traditionally has been viewed as a neural device dedicated to motor control. Although recent evidence shows that it is involved in nonmotor operations as well, an important question is whether this involvement is independent of motor control and motor guidance. Functional magnetic resonance imaging was used to demonstrate that attention and motor performance independently activate distinct cerebellar regions. These findings support a broader concept of cerebellar function, in which the cerebellum is involved in diverse cognitive and noncognitive neurobehavioral systems, including the attention and motor systems, in order to anticipate imminent information acquisition, analysis, or action.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Allen, G -- Buxton, R B -- Wong, E C -- Courchesne, E -- R01-MH36840/MH/NIMH NIH HHS/ -- New York, N.Y. -- Science. 1997 Mar 28;275(5308):1940-3.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉San Diego State University-University of California, San Diego Joint Doctoral Program in Clinical Psychology, San Diego, CA 92120, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/9072973" target="_blank"〉PubMed〈/a〉
    Keywords: Adult ; *Attention ; Brain Mapping ; Cerebellar Cortex/physiology ; Cerebellum/*physiology ; *Cognition ; Female ; Humans ; Magnetic Resonance Imaging ; Male ; *Motor Activity ; *Psychomotor Performance
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    The flu pandemic that might have been (1997)
    American Association for the Advancement of Science (AAAS)
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    Publication Date: 1997-10-06
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Cohen, J -- New York, N.Y. -- Science. 1997 Sep 12;277(5332):1600-1.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/9312852" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Chickens/virology ; Child, Preschool ; China/epidemiology ; Disease Outbreaks ; Hong Kong/epidemiology ; Humans ; *Influenza A virus/isolation & purification ; Influenza in Birds/virology ; Influenza, Human/epidemiology/*transmission/*virology ; Male
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    Nonsyndromic deafness DFNA1 associated with mutation of a human homolog of the Drosophila gene diaphanous (1997)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1997-11-21
    Description: The gene responsible for autosomal dominant, fully penetrant, nonsyndromic sensorineural progressive hearing loss in a large Costa Rican kindred was previously localized to chromosome 5q31 and named DFNA1. Deafness in the family is associated with a protein-truncating mutation in a human homolog of the Drosophila gene diaphanous. The truncation is caused by a single nucleotide substitution in a splice donor, leading to a four-base pair insertion in messenger RNA and a frameshift. The diaphanous protein is a profilin ligand and target of Rho that regulates polymerization of actin, the major component of the cytoskeleton of hair cells of the inner ear.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Lynch, E D -- Lee, M K -- Morrow, J E -- Welcsh, P L -- Leon, P E -- King, M C -- R01-DC01076/DC/NIDCD NIH HHS/ -- New York, N.Y. -- Science. 1997 Nov 14;278(5341):1315-8.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Medicine, University of Washington, Seattle, WA 98195, USA. eric@lynch.com〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/9360932" target="_blank"〉PubMed〈/a〉
    Keywords: Actins/*metabolism ; *Adaptor Proteins, Signal Transducing ; Amino Acid Sequence ; Animals ; Base Sequence ; Carrier Proteins/chemistry/*genetics/physiology ; Chromosome Mapping ; Chromosomes, Human, Pair 5 ; Cochlea/metabolism ; *Contractile Proteins ; Deafness/*genetics/metabolism/pathology ; Drosophila/genetics ; *Drosophila Proteins ; Female ; Frameshift Mutation ; GTP-Binding Proteins/metabolism ; Gene Expression ; Hair Cells, Auditory/*metabolism/ultrastructure ; Humans ; Male ; Microfilament Proteins/metabolism ; Molecular Sequence Data ; Pedigree ; Profilins ; RNA Splicing ; RNA, Messenger/genetics/metabolism ; X Chromosome
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    Mutation of the Stargardt disease gene (ABCR) in age-related macular degeneration (1997)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1997-09-20
    Description: Age-related macular degeneration (AMD) is the leading cause of severe central visual impairment among the elderly and is associated both with environmental factors such as smoking and with genetic factors. Here, 167 unrelated AMD patients were screened for alterations in ABCR, a gene that encodes a retinal rod photoreceptor protein and is defective in Stargardt disease, a common hereditary form of macular dystrophy. Thirteen different AMD-associated alterations, both deletions and amino acid substitutions, were found in one allele of ABCR in 26 patients (16%). Identification of ABCR alterations will permit presymptomatic testing of high-risk individuals and may lead to earlier diagnosis of AMD and to new strategies for prevention and therapy.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Allikmets, R -- Shroyer, N F -- Singh, N -- Seddon, J M -- Lewis, R A -- Bernstein, P S -- Peiffer, A -- Zabriskie, N A -- Li, Y -- Hutchinson, A -- Dean, M -- Lupski, J R -- Leppert, M -- New York, N.Y. -- Science. 1997 Sep 19;277(5333):1805-7.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Intramural Research Support Program, SAIC-Frederick, NCI-Frederick Cancer Research and Development Center, Frederick, MD 21702, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/9295268" target="_blank"〉PubMed〈/a〉
    Keywords: ATP-Binding Cassette Transporters/*genetics/metabolism ; Adult ; Aged ; Aged, 80 and over ; Female ; Frameshift Mutation ; Heterozygote ; Humans ; Macula Lutea/pathology ; Macular Degeneration/*genetics/metabolism/pathology ; Male ; Middle Aged ; *Mutation ; Pedigree ; Pigment Epithelium of Eye/pathology ; Retinal Drusen/pathology ; Sequence Deletion
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    Microtubule architecture specified by a beta-tubulin isoform (1997)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1997-01-03
    Description: In Drosophila melanogaster, a testis-specific beta-tubulin (beta2) is required for spermatogenesis. A sequence motif was identified in carboxyl termini of axonemal beta-tubulins in diverse taxa. As a test of whether orthologous beta-tubulins from different species are functionally equivalent, the moth Heliothis virescens beta2 homolog was expressed in Drosophila testes. When coexpressed with beta2, the moth isoform imposed the 16-protofilament structure characteristic of that found in the moth on the corresponding subset of Drosophila microtubules, which normally contain only 13-protofilament microtubules. Thus, the architecture of the microtubule cytoskeleton can be directed by a component beta-tubulin.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Raff, E C -- Fackenthal, J D -- Hutchens, J A -- Hoyle, H D -- Turner, F R -- New York, N.Y. -- Science. 1997 Jan 3;275(5296):70-3.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Biology and Indiana Molecular Biology Institute, Indiana University, Bloomington, IN 47405, USA. eraff@bio.indiana.edu〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/8974394" target="_blank"〉PubMed〈/a〉
    Keywords: Amino Acid Sequence ; Animals ; Animals, Genetically Modified ; Drosophila melanogaster/genetics ; Humans ; Male ; Microtubules/chemistry/*ultrastructure ; Molecular Sequence Data ; Moths/genetics ; Spermatids/chemistry/physiology/*ultrastructure ; Spermatogenesis ; Tubulin/chemistry/genetics/*physiology
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    Somatic frameshift mutations in the BAX gene in colon cancers of the microsatellite mutator phenotype (1997)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1997-02-14
    Description: Cancers of the microsatellite mutator phenotype (MMP) show exaggerated genomic instability at simple repeat sequences. More than 50 percent (21 out of 41) of human MMP+ colon adenocarcinomas examined were found to have frameshift mutations in a tract of eight deoxyguanosines [(G)8] within BAX, a gene that promotes apoptosis. These mutations were absent in MMP- tumors and were significantly less frequent in (G)8 repeats from other genes. Frameshift mutations were present in both BAX alleles in some MMP+ colon tumor cell lines and in primary tumors. These results suggest that inactivating BAX mutations are selected for during the progression of colorectal MMP+ tumors and that the wild-type BAX gene plays a suppressor role in a p53-independent pathway for colorectal carcinogenesis.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Rampino, N -- Yamamoto, H -- Ionov, Y -- Li, Y -- Sawai, H -- Reed, J C -- Perucho, M -- CA38579/CA/NCI NIH HHS/ -- CA63585/CA/NCI NIH HHS/ -- New York, N.Y. -- Science. 1997 Feb 14;275(5302):967-9.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉The Burnham Institute, La Jolla Cancer Research Center, 10901 North Torrey Pines Road, La Jolla, CA 92037, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/9020077" target="_blank"〉PubMed〈/a〉
    Keywords: Adenocarcinoma/*genetics ; Alleles ; Apoptosis ; Base Sequence ; Colonic Neoplasms/*genetics ; *Frameshift Mutation ; Gene Expression ; *Genes, Tumor Suppressor ; Humans ; Microsatellite Repeats/*genetics ; Molecular Sequence Data ; Mutation ; Phenotype ; Polymerase Chain Reaction ; Proto-Oncogene Proteins/*genetics ; *Proto-Oncogene Proteins c-bcl-2 ; Sequence Deletion ; Tumor Cells, Cultured ; bcl-2-Associated X Protein
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    Modulating irrelevant motion perception by varying attentional load in an unrelated task (1997)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1997-12-31
    Description: Lavie's theory of attention proposes that the processing load in a relevant task determines the extent to which irrelevant distractors are processed. This theory was tested by asking participants in a study to perform linguistic tasks of low or high load while ignoring irrelevant visual motion in the periphery of the display. Although task and distractor were unrelated, both functional imaging of motion-related activity in cortical area V5 and psychophysical measures of the motion aftereffect showed reduced motion processing during high load in the linguistic task. These findings fulfill the prediction that perception of irrelevant distractors depends on the relevant processing load.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Rees, G -- Frith, C D -- Lavie, N -- Wellcome Trust/United Kingdom -- New York, N.Y. -- Science. 1997 Nov 28;278(5343):1616-9.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Wellcome Department of Cognitive Neurology, Institute of Neurology, 12 Queen Square, London WC1N 3BG, UK. g.rees@fil.ion.ucl.ac.uk〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/9374459" target="_blank"〉PubMed〈/a〉
    Keywords: Adult ; Attention/*physiology ; Cerebral Cortex/*physiology ; Female ; Humans ; Magnetic Resonance Imaging ; Male ; *Motion Perception ; Psychomotor Performance ; Superior Colliculi/physiology
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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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    Activation of beta-catenin-Tcf signaling in colon cancer by mutations in beta-catenin or APC (1997)
    American Association for the Advancement of Science (AAAS)
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    Publication Date: 1997-03-21
    Description: Inactivation of the adenomatous polyposis coli (APC) tumor suppressor gene initiates colorectal neoplasia. One of the biochemical activities associated with the APC protein is down-regulation of transcriptional activation mediated by beta-catenin and T cell transcription factor 4 (Tcf-4). The protein products of mutant APC genes present in colorectal tumors were found to be defective in this activity. Furthermore, colorectal tumors with intact APC genes were found to contain activating mutations of beta-catenin that altered functionally significant phosphorylation sites. These results indicate that regulation of beta-catenin is critical to APC's tumor suppressive effect and that this regulation can be circumvented by mutations in either APC or beta-catenin.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Morin, P J -- Sparks, A B -- Korinek, V -- Barker, N -- Clevers, H -- Vogelstein, B -- Kinzler, K W -- CA57345/CA/NCI NIH HHS/ -- New York, N.Y. -- Science. 1997 Mar 21;275(5307):1787-90.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Howard Hughes Medical Institute and Johns Hopkins Oncology Center, 424 North Bond Street, Baltimore, MD 21231, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/9065402" target="_blank"〉PubMed〈/a〉
    Keywords: Adenomatous Polyposis Coli Protein ; Colonic Neoplasms/*genetics/metabolism ; Cytoskeletal Proteins/*genetics/*metabolism ; Gene Expression Regulation, Neoplastic ; *Genes, APC ; Genes, Reporter ; Germ-Line Mutation ; Humans ; Mutation ; Phosphorylation ; Signal Transduction ; TCF Transcription Factors ; *Trans-Activators ; Transcription Factor 7-Like 2 Protein ; Transcription Factors/*metabolism ; *Transcription, Genetic ; Transfection ; Tumor Cells, Cultured ; beta Catenin
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    Evolutionary psychologists look for roots of cognition (1997)
    American Association for the Advancement of Science (AAAS)
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    Publication Date: 1997-01-03
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Williams, N -- New York, N.Y. -- Science. 1997 Jan 3;275(5296):29-30.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/8999531" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; *Behavior, Animal ; *Biological Evolution ; Birds ; *Cognition ; Female ; Humans ; Macaca mulatta/psychology ; Male ; Memory ; Reward ; *Social Sciences
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    Getting the brain's attention (1997)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1997-10-27
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Wickelgren, I -- New York, N.Y. -- Science. 1997 Oct 3;278(5335):35-7.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/9340756" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Attention/*physiology ; Brain/*physiology ; Dopamine/*physiology ; Emotions/*physiology ; Female ; Humans ; Learning/*physiology ; Male ; Memory/physiology ; Neurons/physiology ; Nucleus Accumbens/physiology ; Prefrontal Cortex/physiology ; *Reward ; Ventral Tegmental Area/physiology
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    Deciding advantageously before knowing the advantageous strategy (1997)
    American Association for the Advancement of Science (AAAS)
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    Publication Date: 1997-02-28
    Description: Deciding advantageously in a complex situation is thought to require overt reasoning on declarative knowledge, namely, on facts pertaining to premises, options for action, and outcomes of actions that embody the pertinent previous experience. An alternative possibility was investigated: that overt reasoning is preceded by a nonconscious biasing step that uses neural systems other than those that support declarative knowledge. Normal participants and patients with prefrontal damage and decision-making defects performed a gambling task in which behavioral, psychophysiological, and self-account measures were obtained in parallel. Normals began to choose advantageously before they realized which strategy worked best, whereas prefrontal patients continued to choose disadvantageously even after they knew the correct strategy. Moreover, normals began to generate anticipatory skin conductance responses (SCRs) whenever they pondered a choice that turned out to be risky, before they knew explicitly that it was a risky choice, whereas patients never developed anticipatory SCRs, although some eventually realized which choices were risky. The results suggest that, in normal individuals, nonconscious biases guide behavior before conscious knowledge does. Without the help of such biases, overt knowledge may be insufficient to ensure advantageous behavior.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Bechara, A -- Damasio, H -- Tranel, D -- Damasio, A R -- P01 NS19632/NS/NINDS NIH HHS/ -- New York, N.Y. -- Science. 1997 Feb 28;275(5304):1293-5.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Neurology, Division of Behavioral Neurology and Cognitive Neuroscience, University of Iowa College of Medicine, Iowa City, IA 52242, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/9036851" target="_blank"〉PubMed〈/a〉
    Keywords: Aged ; Brain Damage, Chronic/physiopathology/psychology ; *Decision Making ; Female ; Galvanic Skin Response ; Gambling/psychology ; Humans ; *Intuition ; Male ; Middle Aged ; Prefrontal Cortex/*physiology/physiopathology ; *Unconscious (Psychology)
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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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    Synergy paper questioned at toxicology meeting (1997)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1997-03-28
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Kaiser, J -- New York, N.Y. -- Science. 1997 Mar 28;275(5308):1879.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/9122688" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Chlordan/metabolism/pharmacology ; Dieldrin/metabolism/pharmacology ; Drug Synergism ; Endosulfan/metabolism/pharmacology ; Estrogens, Non-Steroidal/metabolism/*pharmacology ; Female ; Humans ; Insecticides/metabolism/*pharmacology ; Receptors, Estrogen/*drug effects/metabolism ; Reproducibility of Results ; Tumor Cells, Cultured
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    Macrophages as a source of HIV during opportunistic infections (1997)
    American Association for the Advancement of Science (AAAS)
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    Publication Date: 1997-06-20
    Description: The source of increasing viremia that characterizes the latter stages of human immunodeficiency virus (HIV) disease has remained a paradox because it occurs at a time when lymphoid tissue is quantitatively and qualitatively impaired, and the patients' CD4 T lymphocytes are steadily declining. Here, macrophages, both infected and uninfected with common opportunistic pathogens of HIV disease such as Mycobacterium avium complex and Pneumocystis carinii, were identified as highly productive sources of HIV in coinfected lymph nodes. These observations indicate that tissue macrophages are not only infected with HIV, but that common pathogens of HIV disease can dramatically increase their production of virus. Thus, prevention or successful treatment of opportunistic coinfections, or both, potentially benefits the patient twofold by limiting the pathology caused by opportunistic infection and by controlling induction of HIV replication.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Orenstein, J M -- Fox, C -- Wahl, S M -- DE12585/DE/NIDCR NIH HHS/ -- New York, N.Y. -- Science. 1997 Jun 20;276(5320):1857-61.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Pathology, George Washington University, Washington, DC 20037, USA. jmo@gwis2.circ.gwu.edu〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/9188531" target="_blank"〉PubMed〈/a〉
    Keywords: AIDS-Related Opportunistic Infections/*virology ; Adult ; Dendritic Cells/virology ; HIV Infections/*virology ; HIV-1/isolation & purification/*physiology ; Humans ; In Situ Hybridization ; Lymph Nodes/virology ; Macrophages/*virology ; Male ; Microscopy, Electron ; Mycobacterium avium-intracellulare Infection/virology ; Pneumonia, Pneumocystis/virology ; RNA, Viral/analysis ; Virus Replication
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    Angiogenic and HIV-inhibitory functions of KSHV-encoded chemokines (1997)
    American Association for the Advancement of Science (AAAS)
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    Publication Date: 1997-10-10
    Description: Unique among known human herpesviruses, Kaposi's sarcoma-associated herpesvirus (KSHV or HHV-8) encodes chemokine-like proteins (vMIP-I and vMIP-II). vMIP-II was shown to block infection of human immunodeficiency virus-type 1 (HIV-1) on a CD4-positive cell line expressing CCR3 and to a lesser extent on one expressing CCR5, whereas both vMIP-I and vMIP-II partially inhibited HIV infection of peripheral blood mononuclear cells. Like eotaxin, vMIP-II activated and chemoattracted human eosinophils by way of CCR3. vMIP-I and vMIP-II, but not cellular MIP-1alpha or RANTES, were highly angiogenic in the chorioallantoic assay, suggesting a possible pathogenic role in Kaposi's sarcoma.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Boshoff, C -- Endo, Y -- Collins, P D -- Takeuchi, Y -- Reeves, J D -- Schweickart, V L -- Siani, M A -- Sasaki, T -- Williams, T J -- Gray, P W -- Moore, P S -- Chang, Y -- Weiss, R A -- CA 67391/CA/NCI NIH HHS/ -- Wellcome Trust/United Kingdom -- New York, N.Y. -- Science. 1997 Oct 10;278(5336):290-4.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Institute of Cancer Research, Chester Beatty Laboratories, London SW3 6JB, UK.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/9323208" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; CD4-Positive T-Lymphocytes/virology ; Chemokines/genetics/metabolism/pharmacology/*physiology ; Chemotaxis, Leukocyte ; Chick Embryo ; Eosinophils/physiology ; HIV-1/*physiology ; Herpesvirus 8, Human/*genetics/physiology ; Humans ; Leukocytes, Mononuclear/virology ; Macrophage Inflammatory Proteins/genetics/metabolism/pharmacology/*physiology ; Neovascularization, Pathologic/*etiology ; Neutrophils/physiology ; Receptors, CCR3 ; *Receptors, Chemokine ; Receptors, Cytokine/agonists/metabolism ; Receptors, HIV/metabolism ; Tumor Cells, Cultured ; *Viral Proteins ; Virus Replication
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    The inverse association between tuberculin responses and atopic disorder (1997)
    American Association for the Advancement of Science (AAAS)
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    Publication Date: 1997-01-03
    Description: Human immune responses are heterogeneous and may involve antagonism between T helper (TH) lymphocyte subsets and their cytokines. Atopy is characterized by immediate immunoglobulin E (IgE)-mediated hypersensitivity to agents such as dust mites and pollen, and it underlies the increasingly prevalent disorder asthma. Among Japanese schoolchildren, there was a strong inverse association between delayed hypersensitivity to Mycobacterium tuberculosis and atopy. Positive tuberculin responses predicted a lower incidence of asthma, lower serum IgE levels, and cytokine profiles biased toward TH1 type. Exposure and response to M. tuberculosis may, by modification of immune profiles, inhibit atopic disorder.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Shirakawa, T -- Enomoto, T -- Shimazu, S -- Hopkin, J M -- New York, N.Y. -- Science. 1997 Jan 3;275(5296):77-9.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Lung Research Laboratory, Osler Chest Unit, Churchill Hospital, Oxford OX3 7LJ, UK. jhopkin@immsvr.jr2.ox.ac.uk〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/8974396" target="_blank"〉PubMed〈/a〉
    Keywords: Adolescent ; Asthma/epidemiology/etiology/immunology ; BCG Vaccine/immunology ; Child ; Confounding Factors (Epidemiology) ; Cytokines/blood ; Female ; Humans ; Hypersensitivity, Delayed/*immunology ; Hypersensitivity, Immediate/epidemiology/*etiology/immunology ; Immunoglobulin E/blood ; Interferon-gamma/blood ; Japan/epidemiology ; Male ; Th1 Cells/immunology ; Th2 Cells/immunology ; Tuberculin/*immunology ; Tuberculin Test ; Tuberculosis/*epidemiology/immunology
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    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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    Bcl-2: prolonging life in a transgenic mouse model of familial amyotrophic lateral sclerosis (1997)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1997-07-25
    Description: Mutations in the gene encoding copper/zinc superoxide dismutase enzyme produce an animal model of familial amyotrophic lateral sclerosis (FALS), a fatal disorder characterized by paralysis. Overexpression of the proto-oncogene bcl-2 delayed onset of motor neuron disease and prolonged survival in transgenic mice expressing the FALS-linked mutation in which glycine is substituted by alanine at position 93. It did not, however, alter the duration of the disease. Overexpression of bcl-2 also attenuated the magnitude of spinal cord motor neuron degeneration in the FALS-transgenic mice.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Kostic, V -- Jackson-Lewis, V -- de Bilbao, F -- Dubois-Dauphin, M -- Przedborski, S -- NS01724/NS/NINDS NIH HHS/ -- New York, N.Y. -- Science. 1997 Jul 25;277(5325):559-62.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Neurology, Columbia University, 650 West 168 Street, BB-307, New York, NY 10032, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/9228005" target="_blank"〉PubMed〈/a〉
    Keywords: Amyotrophic Lateral Sclerosis/genetics/mortality/pathology/*therapy ; Animals ; Disease Models, Animal ; Female ; *Gene Expression ; *Genes, bcl-2 ; *Genetic Therapy ; Humans ; Male ; Mice ; Mice, Transgenic ; Motor Neurons/pathology ; Nerve Degeneration ; Proto-Oncogene Proteins c-bcl-2/*physiology ; Proto-Oncogene Proteins c-jun/analysis ; Spinal Cord/pathology ; Superoxide Dismutase/genetics/metabolism ; Survival Rate ; Ubiquitins/analysis
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    A critical role for tapasin in the assembly and function of multimeric MHC class I-TAP complexes (1997)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1997-08-29
    Description: Newly assembled major histocompatibility complex (MHC) class I molecules, together with the endoplasmic reticulum chaperone calreticulin, interact with the transporter associated with antigen processing (TAP) through a molecule called tapasin. The molecular cloning of tapasin revealed it to be a transmembrane glycoprotein encoded by an MHC-linked gene. It is a member of the immunoglobulin superfamily with a probable cytoplasmic endoplasmic reticulum retention signal. Up to four MHC class I-tapasin complexes were found to bind to each TAP molecule. Expression of tapasin in a negative mutant human cell line (220) restored class I-TAP association and normal class I cell surface expression. Tapasin expression also corrected the defective recognition of virus-infected 220 cells by class I-restricted cytotoxic T cells, establishing a critical functional role for tapasin in MHC class I-restricted antigen processing.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Ortmann, B -- Copeman, J -- Lehner, P J -- Sadasivan, B -- Herberg, J A -- Grandea, A G -- Riddell, S R -- Tampe, R -- Spies, T -- Trowsdale, J -- Cresswell, P -- AI30581/AI/NIAID NIH HHS/ -- Wellcome Trust/United Kingdom -- New York, N.Y. -- Science. 1997 Aug 29;277(5330):1306-9.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Howard Hughes Medical Institute, Section of Immunobiology, Yale University School of Medicine, 310 Cedar Street, New Haven, CT 06510, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/9271576" target="_blank"〉PubMed〈/a〉
    Keywords: ATP-Binding Cassette Transporters/*metabolism ; Amino Acid Sequence ; Antigen Presentation ; Antiporters/chemistry/genetics/*metabolism ; Calcium-Binding Proteins/metabolism ; Calreticulin ; Cell Line ; Cell Line, Transformed ; Chromosome Mapping ; Chromosomes, Human, Pair 6 ; Cloning, Molecular ; Dimerization ; Endoplasmic Reticulum/metabolism ; Genetic Linkage ; HLA Antigens/*metabolism ; Histocompatibility Antigens Class I/*metabolism ; Humans ; Immunoglobulin G/chemistry ; Immunoglobulins/chemistry/genetics/*metabolism ; Major Histocompatibility Complex/genetics ; Membrane Transport Proteins ; Molecular Sequence Data ; Ribonucleoproteins/metabolism ; Sequence Homology, Amino Acid ; T-Lymphocytes, Cytotoxic ; Tumor Cells, Cultured
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    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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    An antagonist decoy receptor and a death domain-containing receptor for TRAIL (1997)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1997-08-08
    Description: TRAIL, also called Apo2L, is a cytotoxic protein that induces apoptosis of many transformed cell lines but not of normal tissues, even though its death domain-containing receptor, DR4, is expressed on both cell types. An antagonist decoy receptor (designated as TRID for TRAIL receptor without an intracellular domain) that may explain the resistant phenotype of normal tissues was identified. TRID is a distinct gene product with an extracellular TRAIL-binding domain and a transmembrane domain but no intracellular signaling domain. TRID transcripts were detected in many normal human tissues but not in most cancer cell lines examined. Ectopic expression of TRID protected mammalian cells from TRAIL-induced apoptosis, which is consistent with a protective role. Another death domain-containing receptor for TRAIL (designated as death receptor-5), which preferentially engaged a FLICE (caspase-8)-related death protease, was also identified.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Pan, G -- Ni, J -- Wei, Y F -- Yu, G -- Gentz, R -- Dixit, V M -- ES08111/ES/NIEHS NIH HHS/ -- New York, N.Y. -- Science. 1997 Aug 8;277(5327):815-8.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Pathology, University of Michigan Medical School, Ann Arbor, MI, 48109, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/9242610" target="_blank"〉PubMed〈/a〉
    Keywords: Amino Acid Sequence ; Animals ; *Apoptosis ; Apoptosis Regulatory Proteins ; Caspase 10 ; Caspase 8 ; Caspase 9 ; *Caspases ; Cell Line, Transformed ; Cysteine Endopeptidases/metabolism ; GPI-Linked Proteins ; HeLa Cells ; Humans ; Ligands ; Membrane Glycoproteins/*metabolism ; Molecular Sequence Data ; Protein Sorting Signals ; Receptors, TNF-Related Apoptosis-Inducing Ligand ; Receptors, Tumor Necrosis Factor/chemistry/genetics/*metabolism ; Sequence Alignment ; Signal Transduction ; TNF-Related Apoptosis-Inducing Ligand ; Transfection ; Tumor Cells, Cultured ; Tumor Necrosis Factor Decoy Receptors ; Tumor Necrosis Factor-alpha/*metabolism
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    Association of mutations in a lysosomal protein with classical late-infantile neuronal ceroid lipofuscinosis (1997)
    American Association for the Advancement of Science (AAAS)
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    Publication Date: 1997-09-20
    Description: Classical late-infantile neuronal ceroid lipofuscinosis (LINCL) is a fatal neurodegenerative disease whose defective gene has remained elusive. A molecular basis for LINCL was determined with an approach applicable to other lysosomal storage diseases. When the mannose 6-phosphate modification of newly synthesized lysosomal enzymes was used as an affinity marker, a single protein was identified that is absent in LINCL. Sequence comparisons suggest that this protein is a pepstatin-insensitive lysosomal peptidase, and a corresponding enzymatic activity was deficient in LINCL autopsy specimens. Mutations in the gene encoding this protein were identified in LINCL patients but not in normal controls.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Sleat, D E -- Donnelly, R J -- Lackland, H -- Liu, C G -- Sohar, I -- Pullarkat, R K -- Lobel, P -- DK45992/DK/NIDDK NIH HHS/ -- NS30147/NS/NINDS NIH HHS/ -- New York, N.Y. -- Science. 1997 Sep 19;277(5333):1802-5.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Center for Advanced Biotechnology and Medicine, Piscataway, NJ 08854, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/9295267" target="_blank"〉PubMed〈/a〉
    Keywords: Amino Acid Sequence ; Aminopeptidases ; Chromosome Mapping ; Chromosomes, Human, Pair 11 ; Codon ; Dipeptidyl-Peptidases and Tripeptidyl-Peptidases ; Endopeptidases ; Female ; Glycosylation ; Humans ; Isoelectric Point ; Lysosomes/*enzymology ; Male ; Mannosephosphates/analysis ; Molecular Sequence Data ; Molecular Weight ; *Mutation ; Neuronal Ceroid-Lipofuscinoses/enzymology/*genetics ; Pepstatins/pharmacology ; Peptide Hydrolases/*chemistry/deficiency/*genetics ; Polymerase Chain Reaction ; Serine Proteases
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    The receptor for the cytotoxic ligand TRAIL (1997)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1997-04-04
    Description: TRAIL (also known as Apo-2L) is a member of the tumor necrosis factor (TNF) ligand family that rapidly induces apoptosis in a variety of transformed cell lines. The human receptor for TRAIL was found to be an undescribed member of the TNF-receptor family (designated death receptor-4, DR4) that contains a cytoplasmic "death domain" capable of engaging the cell suicide apparatus but not the nuclear factor kappa B pathway in the system studied. Unlike Fas, TNFR-1, and DR3, DR4 could not use FADD to transmit the death signal, suggesting the use of distinct proximal signaling machinery. Thus, the DR4-TRAIL axis defines another receptor-ligand pair involved in regulating cell suicide and tissue homeostasis.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Pan, G -- O'Rourke, K -- Chinnaiyan, A M -- Gentz, R -- Ebner, R -- Ni, J -- Dixit, V M -- DAMD17-96-1-6085/DA/NIDA NIH HHS/ -- ES08111/ES/NIEHS NIH HHS/ -- New York, N.Y. -- Science. 1997 Apr 4;276(5309):111-3.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Pathology, University of Michigan Medical School, Ann Arbor, MI 48109, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/9082980" target="_blank"〉PubMed〈/a〉
    Keywords: *Adaptor Proteins, Signal Transducing ; Amino Acid Sequence ; *Apoptosis ; Apoptosis Regulatory Proteins ; Carrier Proteins/metabolism ; Cell Line ; Fas-Associated Death Domain Protein ; Humans ; Ligands ; Membrane Glycoproteins/*metabolism ; Molecular Sequence Data ; NF-kappa B/metabolism ; Proteins/metabolism ; RNA, Messenger/genetics/metabolism ; Receptor-Interacting Protein Serine-Threonine Kinases ; Receptors, TNF-Related Apoptosis-Inducing Ligand ; Receptors, Tumor Necrosis Factor/chemistry/genetics/*metabolism ; Recombinant Fusion Proteins/metabolism ; Signal Transduction ; TNF Receptor-Associated Factor 1 ; TNF-Related Apoptosis-Inducing Ligand ; Transfection ; Tumor Cells, Cultured ; Tumor Necrosis Factor-alpha/*metabolism
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    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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    Bone sizes trace the decline of man (and woman) (1997)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1997-05-09
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Gibbons, A -- New York, N.Y. -- Science. 1997 May 9;276(5314):896-7.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/9163034" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Biological Evolution ; *Body Constitution ; Body Weight ; Brain/*anatomy & histology ; Female ; Femur Head/*anatomy & histology ; *Fossils ; Hominidae/*anatomy & histology ; Humans ; Male
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    Ideas on human origins evolve at anthropology gathering (1997)
    American Association for the Advancement of Science (AAAS)
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    Publication Date: 1997-04-25
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Gibbons, A -- New York, N.Y. -- Science. 1997 Apr 25;276(5312):535-4.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/9148414" target="_blank"〉PubMed〈/a〉
    Keywords: Africa ; Animals ; Asia ; Biological Evolution ; Europe ; *Family ; Female ; Fossils ; *Haplotypes ; Hominidae/*genetics ; Humans ; *Longevity ; Male ; *Postmenopause
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    Transgenic knockout mice with exclusively human sickle hemoglobin and sickle cell disease (1997)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1997-11-05
    Description: To create mice expressing exclusively human sickle hemoglobin (HbS), transgenic mice expressing human alpha-, gamma-, and betaS-globin were generated and bred with knockout mice that had deletions of the murine alpha- and beta-globin genes. These sickle cell mice have the major features (irreversibly sickled red cells, anemia, multiorgan pathology) found in humans with sickle cell disease and, as such, represent a useful in vivo system to accelerate the development of improved therapies for this common genetic disease.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Paszty, C -- Brion, C M -- Manci, E -- Witkowska, H E -- Stevens, M E -- Mohandas, N -- Rubin, E M -- HL20985/HL/NHLBI NIH HHS/ -- HL31579/HL/NHLBI NIH HHS/ -- N01-HB-07086/HB/NHLBI NIH HHS/ -- New York, N.Y. -- Science. 1997 Oct 31;278(5339):876-8.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Human Genome Center and Department of Subcellular Structure, Lawrence Berkeley National Laboratory, 1 Cyclotron Road (MS 74-157), University of California, Berkeley, CA 94720, USA. c_paszty@csa2.lbl.gov〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/9346488" target="_blank"〉PubMed〈/a〉
    Keywords: Anemia, Sickle Cell/*genetics/pathology ; Animals ; Disease Models, Animal ; Female ; Globins/genetics ; Hemoglobin, Sickle/genetics ; Humans ; Male ; Mice ; Mice, Inbred C57BL ; Mice, Knockout ; Mice, Transgenic
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    Beta-catenin as oncogene: the smoking gun (1997)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1997-03-21
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Peifer, M -- New York, N.Y. -- Science. 1997 Mar 21;275(5307):1752-3.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Biology, University of North Carolina at Chapel Hill, Chapel Hill, NC 27599-3280, USA. peifer@unc.edu〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/9122680" target="_blank"〉PubMed〈/a〉
    Keywords: Adenomatous Polyposis Coli Protein ; Animals ; Apoptosis ; Cell Division ; Cell Movement ; Colon/cytology/metabolism ; Colonic Neoplasms/*genetics/metabolism ; Cytoskeletal Proteins/*genetics/*metabolism ; DNA-Binding Proteins/metabolism ; *Drosophila Proteins ; Gene Expression Regulation, Neoplastic ; Genes, APC ; Humans ; Insect Proteins/metabolism ; Intestinal Mucosa/cytology/metabolism ; Lymphoid Enhancer-Binding Factor 1 ; Melanoma/*genetics/metabolism ; Mutation ; *Oncogenes ; *Repressor Proteins ; Signal Transduction ; *Trans-Activators ; Transcription Factors/metabolism ; Tumor Cells, Cultured ; beta Catenin
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    A TEL-JAK2 fusion protein with constitutive kinase activity in human leukemia (1997)
    American Association for the Advancement of Science (AAAS)
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    Publication Date: 1997-11-21
    Description: The Janus family of tyrosine kinases (JAK) plays an essential role in development and in coupling cytokine receptors to downstream intracellular signaling events. A t(9;12)(p24;p13) chromosomal translocation in a T cell childhood acute lymphoblastic leukemia patient was characterized and shown to fuse the 3' portion of JAK2 to the 5' region of TEL, a gene encoding a member of the ETS transcription factor family. The TEL-JAK2 fusion protein includes the catalytic domain of JAK2 and the TEL-specific oligomerization domain. TEL-induced oligomerization of TEL-JAK2 resulted in the constitutive activation of its tyrosine kinase activity and conferred cytokine-independent proliferation to the interleukin-3-dependent Ba/F3 hematopoietic cell line.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Lacronique, V -- Boureux, A -- Valle, V D -- Poirel, H -- Quang, C T -- Mauchauffe, M -- Berthou, C -- Lessard, M -- Berger, R -- Ghysdael, J -- Bernard, O A -- New York, N.Y. -- Science. 1997 Nov 14;278(5341):1309-12.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉U 301 de l'Institut National de la Sante et de la Recherche Medicale and SD 401 No. 301 CNRS, Institut de Genetique Moleculaire, 27 rue Juliette Dodu, 75010 Paris, France.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/9360930" target="_blank"〉PubMed〈/a〉
    Keywords: Amino Acid Sequence ; Animals ; Base Sequence ; Biopolymers ; Cell Division ; Cell Line ; Child, Preschool ; DNA-Binding Proteins/chemistry/genetics/metabolism ; Enzyme Activation ; Humans ; Interleukin-3/physiology ; Janus Kinase 2 ; Leukemia-Lymphoma, Adult T-Cell/genetics/*metabolism ; Male ; Mice ; *Milk Proteins ; Molecular Sequence Data ; Oncogene Proteins, Fusion/chemistry/genetics/*metabolism ; Phosphorylation ; Protein-Tyrosine Kinases/chemistry/genetics/*metabolism ; *Proto-Oncogene Proteins ; Proto-Oncogene Proteins c-ets ; *Repressor Proteins ; STAT5 Transcription Factor ; Signal Transduction ; Trans-Activators/metabolism ; Transcription Factors/chemistry/genetics/metabolism ; Transfection ; Translocation, Genetic
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    Potential involvement of Fas and its ligand in the pathogenesis of Hashimoto's thyroiditis (1997)
    American Association for the Advancement of Science (AAAS)
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    Publication Date: 1997-02-14
    Description: The mechanisms responsible for thyrocyte destruction in Hashimoto's thyroiditis (HT) are poorly understood. Thyrocytes from HT glands, but not from nonautoimmune thyroids, expressed Fas. Interleukin-1beta (IL-1beta), abundantly produced in HT glands, induced Fas expression in normal thyrocytes, and cross-linking of Fas resulted in massive thyrocyte apoptosis. The ligand for Fas (FasL) was shown to be constitutively expressed both in normal and HT thyrocytes and was able to kill Fas-sensitive targets. Exposure to IL-1beta induced thyrocyte apoptosis, which was prevented by antibodies that block Fas, suggesting that IL-1beta-induced Fas expression serves as a limiting factor for thyrocyte destruction. Thus, Fas-FasL interactions among HT thyrocytes may contribute to clinical hypothyroidism.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Giordano, C -- Stassi, G -- De Maria, R -- Todaro, M -- Richiusa, P -- Papoff, G -- Ruberti, G -- Bagnasco, M -- Testi, R -- Galluzzo, A -- A.066/Telethon/Italy -- New York, N.Y. -- Science. 1997 Feb 14;275(5302):960-3.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Laboratory of Immunology, Endocrinology Section, Institute of Clinica Medica, University of Palermo, Palermo, Italy.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/9020075" target="_blank"〉PubMed〈/a〉
    Keywords: Antibodies, Monoclonal/immunology ; Antigens, CD95/biosynthesis/immunology/*metabolism ; *Apoptosis ; Cells, Cultured ; Cytokines/pharmacology ; Fas Ligand Protein ; Humans ; Immunoenzyme Techniques ; Interleukin-1/pharmacology ; Membrane Glycoproteins/biosynthesis/*metabolism ; Nucleic Acid Synthesis Inhibitors/pharmacology ; Polymerase Chain Reaction ; Protein Synthesis Inhibitors/pharmacology ; RNA, Messenger/genetics/metabolism ; Recombinant Proteins/pharmacology ; Thyroid Gland/*metabolism/pathology ; Thyroiditis, Autoimmune/*etiology/metabolism/pathology ; Tumor Cells, Cultured
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    Functional coherence of the human Y chromosome (1997)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1997-10-24
    Description: A systematic search of the nonrecombining region of the human Y chromosome (NRY) identified 12 novel genes or families, 10 with full-length complementary DNA sequences. All 12 genes, and six of eight NRY genes or families previously isolated by less systematic means, fell into two classes. Genes in the first group were expressed in many organs; these housekeeping genes have X homologs that escape X inactivation. The second group, consisting of Y-chromosomal gene families expressed specifically in testes, may account for infertility among men with Y deletions. The coherence of the NRY's gene content contrasts with the apparently haphazard content of most eukaryotic chromosomes.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Lahn, B T -- Page, D C -- New York, N.Y. -- Science. 1997 Oct 24;278(5338):675-80.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Howard Hughes Medical Institute, Whitehead Institute, and Department of Biology, Massachusetts Institute of Technology, 9 Cambridge Center, Cambridge, MA 02142, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/9381176" target="_blank"〉PubMed〈/a〉
    Keywords: Adult ; Biological Evolution ; Chromosome Mapping ; Cloning, Molecular ; DNA, Complementary ; Dosage Compensation, Genetic ; Gene Dosage ; Gene Expression ; *Genes ; Humans ; Infertility, Male/genetics ; Male ; Molecular Sequence Data ; Multigene Family ; Proteins ; Recombination, Genetic ; Repetitive Sequences, Nucleic Acid ; Seminal Plasma Proteins ; Sequence Analysis, DNA ; Spermatogenesis/genetics ; Testis/metabolism ; X Chromosome/genetics ; Y Chromosome/*genetics
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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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    The endocrinology of aging (1997)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1997-10-23
    Description: Most aging individuals die from atherosclerosis, cancer, or dementia; but in the oldest old, loss of muscle strength resulting in frailty is the limiting factor for an individual's chances of living an independent life until death. Three hormonal systems show decreasing circulating hormone concentrations during normal aging: (i) estrogen (in menopause) and testosterone (in andropause), (ii) dehydroepiandrosterone and its sulphate (in adrenopause), and (iii) the growth hormone/insulin-like growth factor I axis (in somatopause). Physical changes during aging have been considered physiologic, but there is evidence that some of these changes are related to this decline in hormonal activity. Hormone replacement strategies have been developed, but many of their aspects remain controversial, and increasing blood hormone levels in aging individuals to those found during mid-adult life has not been uniformly proven to be safe and of benefit.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Lamberts, S W -- van den Beld, A W -- van der Lely, A J -- New York, N.Y. -- Science. 1997 Oct 17;278(5337):419-24.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Medicine, Erasmus University, Rotterdam, Netherlands. lamberts@inw3.azr.nl〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/9334293" target="_blank"〉PubMed〈/a〉
    Keywords: Adrenal Glands/physiology ; Aged ; Aged, 80 and over ; Aging/*physiology ; Animals ; Climacteric/physiology ; Dehydroepiandrosterone/blood/therapeutic use ; Endocrine Glands/*physiology ; Estrogen Replacement Therapy ; Female ; Frail Elderly ; Human Growth Hormone/secretion/therapeutic use ; Humans ; Male ; Menopause/physiology ; Pituitary Gland/physiology ; Testosterone/blood/therapeutic use
    Print ISSN: 0036-8075
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    Inhibition of phosphatases and increased Ca2+ channel activity by inositol hexakisphosphate (1997)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1997-10-23
    Description: Inositol hexakisphosphate (InsP6), the dominant inositol phosphate in insulin-secreting pancreatic beta cells, inhibited the serine-threonine protein phosphatases type 1, type 2A, and type 3 in a concentration-dependent manner. The activity of voltage-gated L-type calcium channels is increased in cells treated with inhibitors of serine-threonine protein phosphatases. Thus, the increased calcium channel activity obtained in the presence of InsP6 might result from the inhibition of phosphatase activity. Glucose elicited a transient increase in InsP6 concentration, which indicates that this inositol polyphosphate may modulate calcium influx over the plasma membrane and serve as a signal in the pancreatic beta cell stimulus-secretion coupling.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Larsson, O -- Barker, C J -- Sjoholm, A -- Carlqvist, H -- Michell, R H -- Bertorello, A -- Nilsson, T -- Honkanen, R E -- Mayr, G W -- Zwiller, J -- Berggren, P O -- New York, N.Y. -- Science. 1997 Oct 17;278(5337):471-4.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Rolf Luft Center for Diabetes Research, Department of Molecular Medicine, Karolinska Institute, S-171 76 Stockholm, Sweden.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/9334307" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Calcium/metabolism ; Calcium Channels/drug effects/*metabolism ; Cell Membrane/metabolism ; Cricetinae ; Dose-Response Relationship, Drug ; Glucose/pharmacology ; Inositol/pharmacology ; Inositol Phosphates/pharmacology ; Ion Channel Gating ; Islets of Langerhans/drug effects/*metabolism ; Patch-Clamp Techniques ; Phosphoprotein Phosphatases/*antagonists & inhibitors ; Phytic Acid/*pharmacology ; Tumor Cells, Cultured
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    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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    The architecture of hearing (1997)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1997-12-31
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Pennisi, E -- New York, N.Y. -- Science. 1997 Nov 14;278(5341):1223-4.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/9411747" target="_blank"〉PubMed〈/a〉
    Keywords: *Adaptor Proteins, Signal Transducing ; Animals ; Carrier Proteins/*genetics/physiology ; Chromosome Mapping ; Cilia/ultrastructure ; Cochlea/metabolism ; Connexins/*genetics ; Deafness/*genetics/pathology ; Dyneins ; Female ; Gap Junctions/physiology/ultrastructure ; Genes, Recessive ; Hair Cells, Auditory/physiology/ultrastructure ; Humans ; Male ; Mice ; Mice, Neurologic Mutants ; Mutation ; Myosins/*genetics ; Pedigree
    Print ISSN: 0036-8075
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    Differing roles found for estrogen's two receptors (1997)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1997-09-26
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Pennisi, E -- New York, N.Y. -- Science. 1997 Sep 5;277(5331):1439.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/9304214" target="_blank"〉PubMed〈/a〉
    Keywords: Enhancer Elements, Genetic ; Estrogen Antagonists/metabolism/pharmacology ; Estrogen Receptor alpha ; Estrogen Receptor beta ; Estrogens/metabolism/pharmacology ; Gene Expression Regulation ; Genes, Reporter ; Humans ; Ligands ; Receptors, Estrogen/genetics/*physiology ; Regulatory Sequences, Nucleic Acid ; Transcription Factor AP-1/metabolism ; Tumor Cells, Cultured
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    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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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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    Coding the locations of objects in the dark (1997)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1997-07-11
    Description: The ventral premotor cortex in primates is thought to be involved in sensory-motor integration. Many of its neurons respond to visual stimuli in the space near the arms or face. In this study on the ventral premotor cortex of monkeys, an object was presented within the visual receptive fields of individual neurons, then the lights were turned off and the object was silently removed. A subset of the neurons continued to respond in the dark as if the object were still present and visible. Such cells exhibit "object permanence," encoding the presence of an object that is no longer visible. These cells may underlie the ability to reach toward or avoid objects that are no longer directly visible.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Graziano, M S -- Hu, X T -- Gross, C G -- EY11347/EY/NEI NIH HHS/ -- New York, N.Y. -- Science. 1997 Jul 11;277(5323):239-41.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Psychology, Princeton University, Princeton, NJ 08544, USA. graziano@princeon.edu〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/9211852" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; *Darkness ; Macaca fascicularis ; Male ; *Memory ; Motor Cortex/*physiology ; Neurons/*physiology ; Photic Stimulation ; Psychomotor Performance ; *Space Perception ; Touch ; Visual Pathways
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    A catalog of cancer genes at the click of a mouse (1997)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1997-05-16
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Pennisi, E -- New York, N.Y. -- Science. 1997 May 16;276(5315):1023-4.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/9173535" target="_blank"〉PubMed〈/a〉
    Keywords: *Computer Communication Networks ; DNA, Complementary/genetics ; *Databases, Factual ; Europe ; Financing, Government ; Gene Expression ; *Gene Library ; Genes ; Humans ; Male ; National Institutes of Health (U.S.)/economics ; Neoplasms/*genetics ; Prostatic Neoplasms/genetics ; Research Support as Topic ; United States
    Print ISSN: 0036-8075
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    Newfound gene holds key to cell's cholesterol traffic (1997)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1997-07-11
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Pennisi, E -- New York, N.Y. -- Science. 1997 Jul 11;277(5323):180-1.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/9235630" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; *Carrier Proteins ; Child ; Cholesterol/*metabolism ; Chromosome Mapping ; *Chromosomes, Human, Pair 18 ; Disease Models, Animal ; Female ; Humans ; Male ; *Membrane Glycoproteins ; Mice ; Mice, Mutant Strains ; Niemann-Pick Diseases/*genetics/metabolism ; Proteins/chemistry/*genetics/physiology
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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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    New tumor suppressor found--twice (1997)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1997-03-28
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Pennisi, E -- New York, N.Y. -- Science. 1997 Mar 28;275(5308):1876-8.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/9122687" target="_blank"〉PubMed〈/a〉
    Keywords: Brain Neoplasms/genetics ; Breast Neoplasms/genetics ; Chromosome Mapping ; *Chromosomes, Human, Pair 10 ; Female ; Gene Deletion ; *Genes, Tumor Suppressor ; Glioma/genetics ; Humans ; Male ; Microfilament Proteins/chemistry/metabolism ; Neoplasms/*genetics ; Patents as Topic ; Prostatic Neoplasms/genetics ; Protein Tyrosine Phosphatases/chemistry/*genetics/metabolism/physiology ; Publishing ; Tumor Cells, Cultured
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    Identification of a gene that causes primary open angle glaucoma (1997)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1997-01-31
    Description: Glaucoma is a major cause of blindness and is characterized by progressive degeneration of the optic nerve and is usually associated with elevated intraocular pressure. Analyses of sequence tagged site (STS) content and haplotype sharing between families affected with chromosome 1q-linked open angle glaucoma (GLC1A) were used to prioritize candidate genes for mutation screening. A gene encoding a trabecular meshwork protein (TIGR) mapped to the narrowest disease interval by STS content and radiation hybrid mapping. Thirteen glaucoma patients were found to have one of three mutations in this gene (3.9 percent of the population studied). One of these mutations was also found in a control individual (0.2 percent). Identification of these mutations will aid in early diagnosis, which is essential for optimal application of existing therapies.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Stone, E M -- Fingert, J H -- Alward, W L -- Nguyen, T D -- Polansky, J R -- Sunden, S L -- Nishimura, D -- Clark, A F -- Nystuen, A -- Nichols, B E -- Mackey, D A -- Ritch, R -- Kalenak, J W -- Craven, E R -- Sheffield, V C -- EY02477/EY/NEI NIH HHS/ -- EY08905/EY/NEI NIH HHS/ -- EY10564/EY/NEI NIH HHS/ -- etc. -- New York, N.Y. -- Science. 1997 Jan 31;275(5300):668-70.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Ophthalmology, University of Iowa College of Medicine, Iowa City, IA 52242, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/9005853" target="_blank"〉PubMed〈/a〉
    Keywords: Base Sequence ; Chromosome Mapping ; Chromosomes, Artificial, Yeast ; *Chromosomes, Human, Pair 1 ; Cytoskeletal Proteins ; Eye Proteins/*genetics ; Female ; Genetic Linkage ; Glaucoma, Open-Angle/*genetics ; *Glycoproteins ; Haplotypes ; Humans ; Male ; Molecular Sequence Data ; Mutation ; Pedigree ; Polymerase Chain Reaction ; Polymorphism, Single-Stranded Conformational ; Sequence Tagged Sites ; Trabecular Meshwork/*metabolism
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    Cysteine and glutathione secretion in response to protein disulfide bond formation in the ER (1997)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1997-09-12
    Description: Protein folding in the endoplasmic reticulum (ER) often involves the formation of disulfide bonds. The oxidizing conditions required within this organelle were shown to be maintained through the release of small thiols, mainly cysteine and glutathione. Thiol secretion was stimulated when proteins rich in disulfide bonds were translocated into the ER, and secretion was prevented by the inhibition of protein synthesis. Endogenously generated cysteine and glutathione counteracted thiol-mediated retention in the ER and altered the extracellular redox. The secretion of thiols might link disulfide bond formation in the ER to intra- and intercellular redox signaling.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Carelli, S -- Ceriotti, A -- Cabibbo, A -- Fassina, G -- Ruvo, M -- Sitia, R -- New York, N.Y. -- Science. 1997 Sep 12;277(5332):1681-4.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉DIBIT, Istituto Scientifico San Raffaele, Milano, Italy.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/9287224" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Benzopyrans/metabolism ; Brefeldin A ; Cycloheximide/pharmacology ; Cyclopentanes/pharmacology ; Cysteine/*secretion ; Cystine/secretion ; Disulfides/*metabolism ; Endoplasmic Reticulum/*metabolism ; Exocytosis ; Glutathione/analogs & derivatives/*secretion ; Glutathione Disulfide ; Golgi Apparatus/metabolism ; Hemagglutinin Glycoproteins, Influenza Virus/biosynthesis ; Immunoglobulin M/biosynthesis ; Immunoglobulin lambda-Chains/metabolism ; Oocytes ; Oxidation-Reduction ; Protein Synthesis Inhibitors/pharmacology ; Proteins/*metabolism ; Temperature ; Tumor Cells, Cultured ; Xenopus laevis
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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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    PTEN, a putative protein tyrosine phosphatase gene mutated in human brain, breast, and prostate cancer (1997)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1997-03-28
    Description: Mapping of homozygous deletions on human chromosome 10q23 has led to the isolation of a candidate tumor suppressor gene, PTEN, that appears to be mutated at considerable frequency in human cancers. In preliminary screens, mutations of PTEN were detected in 31% (13/42) of glioblastoma cell lines and xenografts, 100% (4/4) of prostate cancer cell lines, 6% (4/65) of breast cancer cell lines and xenografts, and 17% (3/18) of primary glioblastomas. The predicted PTEN product has a protein tyrosine phosphatase domain and extensive homology to tensin, a protein that interacts with actin filaments at focal adhesions. These homologies suggest that PTEN may suppress tumor cell growth by antagonizing protein tyrosine kinases and may regulate tumor cell invasion and metastasis through interactions at focal adhesions.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Li, J -- Yen, C -- Liaw, D -- Podsypanina, K -- Bose, S -- Wang, S I -- Puc, J -- Miliaresis, C -- Rodgers, L -- McCombie, R -- Bigner, S H -- Giovanella, B C -- Ittmann, M -- Tycko, B -- Hibshoosh, H -- Wigler, M H -- Parsons, R -- 5R35 CA39829/CA/NCI NIH HHS/ -- New York, N.Y. -- Science. 1997 Mar 28;275(5308):1943-7.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Pathology, College of Physicians & Surgeons, Columbia University, 630 West 168 Street, New York, NY 10032, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/9072974" target="_blank"〉PubMed〈/a〉
    Keywords: Amino Acid Sequence ; Brain Neoplasms/genetics ; Breast Neoplasms/genetics ; Chromosome Mapping ; *Chromosomes, Human, Pair 10 ; Female ; Frameshift Mutation ; *Genes, Tumor Suppressor ; Glioblastoma/genetics ; Humans ; Male ; Microfilament Proteins/chemistry ; Molecular Sequence Data ; *Mutation ; Neoplasm Transplantation ; Neoplasms/*genetics ; PTEN Phosphohydrolase ; *Phosphoric Monoester Hydrolases ; Phosphotyrosine/metabolism ; Prostatic Neoplasms/genetics ; Protein Tyrosine Phosphatases/chemistry/*genetics/physiology ; Protein-Tyrosine Kinases/antagonists & inhibitors ; Sequence Deletion ; Sequence Homology, Amino Acid ; Transplantation, Heterologous ; Tumor Cells, Cultured ; *Tumor Suppressor Proteins
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  • 84
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    Failure of parturition in mice lacking the prostaglandin F receptor (1997)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1997-08-01
    Description: Mice lacking the gene encoding the receptor for prostaglandin F2alpha (FP) developed normally but were unable to deliver normal fetuses at term. Although these FP-deficient mice showed no abnormality in the estrous cycle, ovulation, fertilization, or implantation, they did not respond to exogenous oxytocin because of the lack of induction of oxytocin receptor (a proposed triggering event in parturition), and they did not show the normal decline of serum progesterone concentrations that precedes parturition. Ovariectomy at day 19 of pregnancy restored induction of the oxytocin receptor and permitted successful delivery in the FP-deficient mice. These results indicate that parturition is initiated when prostaglandin F2alpha interacts with FP in ovarian luteal cells of the pregnant mice to induce luteolysis.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Sugimoto, Y -- Yamasaki, A -- Segi, E -- Tsuboi, K -- Aze, Y -- Nishimura, T -- Oida, H -- Yoshida, N -- Tanaka, T -- Katsuyama, M -- Hasumoto, K -- Murata, T -- Hirata, M -- Ushikubi, F -- Negishi, M -- Ichikawa, A -- Narumiya, S -- New York, N.Y. -- Science. 1997 Aug 1;277(5326):681-3.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Physiological Chemistry, Faculty of Pharmaceutical Sciences, Kyoto University, Kyoto 606, Japan.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/9235889" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Corpus Luteum/*metabolism ; Dinoprost/*metabolism ; Female ; Gene Targeting ; Heterozygote ; Homozygote ; *Labor, Obstetric ; Male ; Mice ; Mice, Inbred C57BL ; Ovariectomy ; Oxytocin/biosynthesis/pharmacology ; Pregnancy ; Progesterone/blood ; Receptors, Oxytocin/biosynthesis ; Receptors, Prostaglandin/genetics/*metabolism ; Uterine Contraction/drug effects ; Uterus/metabolism
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    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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  • 85
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    Human DNA-(cytosine-5) methyltransferase-PCNA complex as a target for p21WAF1 (1997)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1997-09-26
    Description: DNA-(cytosine-5) methyltransferase (MCMT) methylates newly replicated mammalian DNA, but the factors regulating this activity are unknown. Here, MCMT is shown to bind proliferating cell nuclear antigen (PCNA), an auxiliary factor for DNA replication and repair. Binding of PCNA requires amino acids 163 to 174 of MCMT, occurs in intact cells at foci of newly replicated DNA, and does not alter MCMT activity. A peptide derived from the cell cycle regulator p21(WAF1) can disrupt the MCMT-PCNA interaction, which suggests that p21(WAF1) may regulate methylation by blocking access of MCMT to PCNA. MCMT and p21(WAF1) may be linked in a regulatory pathway, because the extents of their expression are inversely related in both SV40-transformed and nontransformed cells.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Chuang, L S -- Ian, H I -- Koh, T W -- Ng, H H -- Xu, G -- Li, B F -- New York, N.Y. -- Science. 1997 Sep 26;277(5334):1996-2000.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Chemical Carcinogenesis Laboratory, Institute of Molecular and Cell Biology, National University of Singapore, Kent Ridge Crescent, Singapore 119260, Republic of Singapore.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/9302295" target="_blank"〉PubMed〈/a〉
    Keywords: Amino Acid Sequence ; Cell Line, Transformed ; Cell Nucleus/metabolism ; Cyclin-Dependent Kinase Inhibitor p21 ; Cyclins/chemistry/*metabolism ; DNA (Cytosine-5-)-Methyltransferase/*metabolism ; DNA Damage ; *DNA Methylation ; DNA Repair ; DNA Replication ; Humans ; Molecular Sequence Data ; Peptides/pharmacology ; Proliferating Cell Nuclear Antigen/*metabolism ; Recombinant Fusion Proteins/metabolism/pharmacology ; Tumor Cells, Cultured
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  • 86
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    Specific inhibition of Stat3 signal transduction by PIAS3 (1997)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1997-12-31
    Description: The signal transducer and activator of transcription-3 (Stat3) protein is activated by the interleukin 6 (IL-6) family of cytokines, epidermal growth factor, and leptin. A protein named PIAS3 (protein inhibitor of activated STAT) that binds to Stat3 was isolated and characterized. The association of PIAS3 with Stat3 in vivo was only observed in cells stimulated with ligands that cause the activation of Stat3. PIAS3 blocked the DNA-binding activity of Stat3 and inhibited Stat3-mediated gene activation. Although Stat1 is also phosphorylated in response to IL-6, PIAS3 did not interact with Stat1 or affect its DNA-binding or transcriptional activity. The results indicate that PIAS3 is a specific inhibitor of Stat3.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Chung, C D -- Liao, J -- Liu, B -- Rao, X -- Jay, P -- Berta, P -- Shuai, K -- AI39612/AI/NIAID NIH HHS/ -- T32CA09056/CA/NCI NIH HHS/ -- New York, N.Y. -- Science. 1997 Dec 5;278(5344):1803-5.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Biological Chemistry, University of California, Los Angeles, CA 90095, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/9388184" target="_blank"〉PubMed〈/a〉
    Keywords: Amino Acid Sequence ; Animals ; Carrier Proteins/chemistry/genetics/*metabolism/pharmacology ; Cell Line ; DNA/metabolism ; DNA-Binding Proteins/genetics/*metabolism ; Gene Expression Regulation ; Humans ; Interferon Regulatory Factor-1 ; Interferon-alpha/pharmacology ; Interleukin-6/pharmacology ; *Intracellular Signaling Peptides and Proteins ; Mice ; Molecular Sequence Data ; NF-kappa B/metabolism ; Phosphoproteins/genetics ; Phosphorylation ; Phosphotyrosine/metabolism ; Protein Inhibitors of Activated STAT ; Recombinant Fusion Proteins/pharmacology ; STAT1 Transcription Factor ; STAT3 Transcription Factor ; *Signal Transduction ; Trans-Activators/*metabolism ; Transcriptional Activation ; Transfection ; Tumor Cells, Cultured ; Tumor Necrosis Factor-alpha/pharmacology
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    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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  • 87
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    Transient expression of a mutator phenotype in cancer cells (1997)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1997-09-26
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Loeb, L A -- New York, N.Y. -- Science. 1997 Sep 5;277(5331):1449-50.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Pathology, University of Washington, Seattle, WA 98195-7705, USA. laloeb@u.washington.edu〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/9304215" target="_blank"〉PubMed〈/a〉
    Keywords: Cell Division ; DNA Repair ; Disease Progression ; Humans ; Microsatellite Repeats/*genetics ; *Mutation ; Neoplasm Invasiveness ; Neoplasm Metastasis ; Neoplasms/*genetics/pathology ; Neovascularization, Pathologic ; Phenotype ; Tumor Cells, Cultured
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  • 88
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    Mutation in the alpha-synuclein gene identified in families with Parkinson's disease (1997)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1997-06-27
    Description: Parkinson's disease (PD) is a common neurodegenerative disorder with a lifetime incidence of approximately 2 percent. A pattern of familial aggregation has been documented for the disorder, and it was recently reported that a PD susceptibility gene in a large Italian kindred is located on the long arm of human chromosome 4. A mutation was identified in the alpha-synuclein gene, which codes for a presynaptic protein thought to be involved in neuronal plasticity, in the Italian kindred and in three unrelated families of Greek origin with autosomal dominant inheritance for the PD phenotype. This finding of a specific molecular alteration associated with PD will facilitate the detailed understanding of the pathophysiology of the disorder.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Polymeropoulos, M H -- Lavedan, C -- Leroy, E -- Ide, S E -- Dehejia, A -- Dutra, A -- Pike, B -- Root, H -- Rubenstein, J -- Boyer, R -- Stenroos, E S -- Chandrasekharappa, S -- Athanassiadou, A -- Papapetropoulos, T -- Johnson, W G -- Lazzarini, A M -- Duvoisin, R C -- Di Iorio, G -- Golbe, L I -- Nussbaum, R L -- New York, N.Y. -- Science. 1997 Jun 27;276(5321):2045-7.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Laboratory of Genetic Disease Research, National Human Genome Research Institute, National Institutes of Health, Bethesda, MD 20892-1430, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/9197268" target="_blank"〉PubMed〈/a〉
    Keywords: Age of Onset ; Amino Acid Sequence ; Animals ; Base Sequence ; Chromosome Mapping ; Chromosomes, Human, Pair 4 ; Female ; Genes, Dominant ; Genetic Markers ; Greece ; Humans ; Italy ; Male ; Molecular Sequence Data ; Nerve Tissue Proteins/chemistry/*genetics/physiology ; Parkinson Disease/*genetics ; Pedigree ; Phenotype ; *Point Mutation ; Polymerase Chain Reaction ; Protein Structure, Secondary ; Synucleins ; alpha-Synuclein
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    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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  • 89
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    HIV suppressed long after treatment (1997)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1997-10-23
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Cohen, J -- New York, N.Y. -- Science. 1997 Sep 26;277(5334):1927.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/9333945" target="_blank"〉PubMed〈/a〉
    Keywords: Adult ; Anti-HIV Agents/*therapeutic use ; Drug Therapy, Combination ; HIV/*physiology ; HIV Infections/complications/*drug therapy/virology ; Hepatitis A/complications ; Humans ; Hydroxyurea/therapeutic use ; Male ; Time Factors ; *Viral Load
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  • 90
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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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    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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  • 91
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    Potency of combined estrogenic pesticides (1997)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1997-01-17
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Ramamoorthy, K -- Wang, F -- Chen, I C -- Safe, S -- Norris, J D -- McDonnell, D P -- Gaido, K W -- Bocchinfuso, W P -- Korach, K S -- New York, N.Y. -- Science. 1997 Jan 17;275(5298):405-6.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/9005556" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Dieldrin/metabolism/*pharmacology ; Drug Interactions ; Drug Synergism ; Estrogens, Non-Steroidal/metabolism/*pharmacology ; Female ; Humans ; Insecticides/metabolism/*pharmacology ; Mice ; Receptors, Estrogen/metabolism ; Toxaphene/metabolism/*pharmacology ; Tumor Cells, Cultured
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  • 92
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    Two modulatory effects of attention that mediate object categorization in human cortex (1997)
    American Association for the Advancement of Science (AAAS)
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    Publication Date: 1997-02-07
    Description: Attentional modulation of cortical activity was examined by varying the rate of visual stimuli in object categorization tasks according to single and conjoined features. Activation of dorsolateral frontal cortex was independent of the stimulus presentation rate and elicited by the participant's attention to conjoined compared with single features. Several cortical regions showed attentionally modulated activity. In inferior temporal cortex, modulation was due to an additional bias signal underlying normal rate-correlated activity. In two other regions (premotor cortex and cerebellum), attention modified the correlation of activity and the stimulus presentation rate. Attentional effects in the human cortex are expressed by at least two physiologically distinct mechanisms acting on spatially distributed areas.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Rees, G -- Frackowiak, R -- Frith, C -- Wellcome Trust/United Kingdom -- New York, N.Y. -- Science. 1997 Feb 7;275(5301):835-8.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉The Wellcome Department of Cognitive Neurology, Institute of Neurology, Queen Square, London WC1N 3BG, UK.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/9012351" target="_blank"〉PubMed〈/a〉
    Keywords: Adult ; Aged ; *Attention ; Brain Mapping ; Cerebellum/blood supply/physiology ; Cerebral Cortex/blood supply/*physiology ; Frontal Lobe/blood supply/physiology ; Humans ; Male ; Middle Aged ; Motor Cortex/blood supply/physiology ; Neurons/physiology ; Regional Blood Flow ; Temporal Lobe/blood supply/physiology ; Tomography, Emission-Computed ; Visual Perception/*physiology
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  • 93
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    Differential effects of early hippocampal pathology on episodic and semantic memory (1997)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1997-07-18
    Description: Global anterograde amnesia is described in three patients with brain injuries that occurred in one case at birth, in another by age 4, and in the third at age 9. Magnetic resonance techniques revealed bilateral hippocampal pathology in all three cases. Remarkably, despite their pronounced amnesia for the episodes of everyday life, all three patients attended mainstream schools and attained levels of speech and language competence, literacy, and factual knowledge that are within the low average to average range. The findings provide support for the view that the episodic and semantic components of cognitive memory are partly dissociable, with only the episodic component being fully dependent on the hippocampus.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Vargha-Khadem, F -- Gadian, D G -- Watkins, K E -- Connelly, A -- Van Paesschen, W -- Mishkin, M -- Wellcome Trust/United Kingdom -- New York, N.Y. -- Science. 1997 Jul 18;277(5324):376-80.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Cognitive Neuroscience Unit, Institute of Child Health, University College London Medical School, Wolfson Centre, Mecklenburgh Square, London WC1N 2AP, UK. fkhadem@ich.ucl.ac.uk〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/9219696" target="_blank"〉PubMed〈/a〉
    Keywords: Adolescent ; Adult ; Amnesia/*pathology/physiopathology/psychology ; Brain Mapping ; Cerebral Cortex/pathology/physiopathology ; Child ; Female ; Hippocampus/*pathology/physiopathology ; Humans ; Magnetic Resonance Imaging ; Male ; *Memory ; Neuropsychological Tests ; Temporal Lobe/pathology/physiopathology
    Print ISSN: 0036-8075
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  • 94
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    Tumor infarction in mice by antibody-directed targeting of tissue factor to tumor vasculature (1997)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1997-01-24
    Description: Selective occlusion of tumor vasculature was tested as a therapy for solid tumors in a mouse model. The formation of blood clots (thrombosis) within the tumor vessels was initiated by targeting the cell surface domain of human tissue factor, by means of a bispecific antibody, to an experimentally induced marker on tumor vascular endothelial cells. This truncated form of tissue factor (tTF) had limited ability to initiate thrombosis when free in the circulation, but became an effective and selective thrombogen when targeted to tumor endothelial cells. Intravenous administration of the antibody-tTF complex to mice with large neuroblastomas resulted in complete tumor regressions in 38 percent of the mice.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Huang, X -- Molema, G -- King, S -- Watkins, L -- Edgington, T S -- Thorpe, P E -- P01-HL16411/HL/NHLBI NIH HHS/ -- R01-CA54168/CA/NCI NIH HHS/ -- R01-CA59569/CA/NCI NIH HHS/ -- New York, N.Y. -- Science. 1997 Jan 24;275(5299):547-50.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Pharmacology and Hamon Center for Therapeutic Oncology Research, University of Texas Southwestern Medical Center, Dallas, TX 75235, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/8999802" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Antibodies/immunology ; *Blood Coagulation ; Endothelium, Vascular/immunology ; Histocompatibility Antigens Class II/immunology/metabolism ; Humans ; Immunoconjugates/administration & dosage/metabolism/*therapeutic use ; Injections, Intravenous ; Mice ; Mice, Inbred BALB C ; Mice, Nude ; Neuroblastoma/*blood supply/*drug therapy/pathology ; Thromboplastin/administration & dosage/metabolism/*therapeutic use ; Tumor Cells, Cultured
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  • 95
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    Multiple and ancient origins of the domestic dog (1997)
    American Association for the Advancement of Science (AAAS)
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    Publication Date: 1997-06-13
    Description: Mitochondrial DNA control region sequences were analyzed from 162 wolves at 27 localities worldwide and from 140 domestic dogs representing 67 breeds. Sequences from both dogs and wolves showed considerable diversity and supported the hypothesis that wolves were the ancestors of dogs. Most dog sequences belonged to a divergent monophyletic clade sharing no sequences with wolves. The sequence divergence within this clade suggested that dogs originated more than 100,000 years before the present. Associations of dog haplotypes with other wolf lineages indicated episodes of admixture between wolves and dogs. Repeated genetic exchange between dog and wolf populations may have been an important source of variation for artificial selection.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Vila, C -- Savolainen, P -- Maldonado, J E -- Amorim, I R -- Rice, J E -- Honeycutt, R L -- Crandall, K A -- Lundeberg, J -- Wayne, R K -- New York, N.Y. -- Science. 1997 Jun 13;276(5319):1687-9.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Biology, University of California, Los Angeles, CA 90095-1606, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/9180076" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Base Sequence ; *Biological Evolution ; Breeding ; Carnivora/*genetics ; Crosses, Genetic ; DNA, Mitochondrial/*genetics ; Dogs/classification/*genetics ; Female ; Haplotypes ; Male ; Molecular Sequence Data ; Phylogeny ; Sequence Homology, Nucleic Acid
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  • 96
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    Testing the power of prayer (1997)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1997-06-13
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Cox, B M -- New York, N.Y. -- Science. 1997 Jun 13;276(5319):1630-1.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/9206821" target="_blank"〉PubMed〈/a〉
    Keywords: Controlled Clinical Trials as Topic ; Double-Blind Method ; Female ; Humans ; Male ; Mental Disorders/*therapy ; *Mental Healing ; Religion and Medicine ; Rheumatic Diseases/*therapy
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  • 97
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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
    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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  • 98
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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
    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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  • 99
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    Effect of transmembrane and cytoplasmic domains of IgE on the IgE response (1997)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1997-04-18
    Description: B cells use immunoglobulin M (IgM) and IgD as antigen receptors, but after contact with antigen they can switch and use IgG, IgA, or IgE. In mice lacking the transmembrane and cytoplasmic domains of IgE, serum IgE is reduced by more than 95 percent and, after immunization, specific responses are negligible. In mice lacking most of the cytoplasmic tail of IgE, serum IgE levels are reduced by 50 percent and specific responses are reduced by 40 to 80 percent, without a clear secondary response. Thus, membrane expression is indispensable for IgE secretion in vivo, and the cytoplasmic tail influences the degree and quality of the response.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Achatz, G -- Nitschke, L -- Lamers, M C -- New York, N.Y. -- Science. 1997 Apr 18;276(5311):409-11.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Max-Planck-Institut fur Immunbiologie, Stubeweg 51, D-79108 Freiburg, Germany.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/9103198" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Antibody-Producing Cells/immunology ; *Antigen Presentation ; Cytoplasm ; Dimerization ; Female ; Gene Targeting ; Immunization ; Immunoglobulin Class Switching ; Immunoglobulin E/blood/chemistry/genetics/*immunology ; Immunoglobulin G/blood ; Immunologic Memory ; Male ; Mice ; Mutation ; Nippostrongylus ; Receptors, Antigen, B-Cell/*immunology ; Signal Transduction ; Strongylida Infections/immunology ; Th2 Cells/immunology
    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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  • 100
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    The influence of dominance rank on the reproductive success of female chimpanzees (1997)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1997-08-08
    Description: Female chimpanzees often forage alone and do not display obvious linear dominance hierarchies; consequently, it has been suggested that dominance is not of great importance to them. However, with the use of data from a 35-year field study of chimpanzees, high-ranking females were shown to have significantly higher infant survival, faster maturing daughters, and more rapid production of young. Given the foraging behavior of chimpanzees, high rank probably influences reproductive success by helping females establish and maintain access to good foraging areas rather than by sparing them stress from aggression.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Pusey, A -- Williams, J -- Goodall, J -- New York, N.Y. -- Science. 1997 Aug 8;277(5327):828-31.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Jane Goodall Institute's Center for Primate Studies, Department of Ecology, Evolution and Behavior, University of Minnesota, 1987 Upper Buford Circle, St. Paul, MN 55108, USA. pusey001@maroon.tc.umn.edu〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/9242614" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Behavior, Animal ; Feeding Behavior ; Female ; Longevity ; Male ; Pan troglodytes/physiology/*psychology ; *Reproduction ; Sexual Maturation ; *Social Dominance ; Tanzania
    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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