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  • Humans  (94)
  • Geophysics  (50)
  • 1995-1999  (144)
  • 1980-1984
  • 1945-1949
  • 1940-1944
  • 1997  (144)
  • 1
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    Identification of a reservoir for HIV-1 in patients on highly active antiretroviral therapy (1997)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1997-11-21
    Description: The hypothesis that quiescent CD4+ T lymphocytes carrying proviral DNA provide a reservoir for human immunodeficiency virus-type 1 (HIV-1) in patients on highly active antiretroviral therapy (HAART) was examined. In a study of 22 patients successfully treated with HAART for up to 30 months, replication-competent virus was routinely recovered from resting CD4+ T lymphocytes. The frequency of resting CD4+ T cells harboring latent HIV-1 was low, 0.2 to 16.4 per 10(6) cells, and, in cross-sectional analysis, did not decrease with increasing time on therapy. The recovered viruses generally did not show mutations associated with resistance to the relevant antiretroviral drugs. This reservoir of nonevolving latent virus in resting CD4+ T cells should be considered in deciding whether to terminate treatment in patients who respond to HAART.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Finzi, D -- Hermankova, M -- Pierson, T -- Carruth, L M -- Buck, C -- Chaisson, R E -- Quinn, T C -- Chadwick, K -- Margolick, J -- Brookmeyer, R -- Gallant, J -- Markowitz, M -- Ho, D D -- Richman, D D -- Siliciano, R F -- AI23871/AI/NIAID NIH HHS/ -- AI27670/AI/NIAID NIH HHS/ -- AI28108/AI/NIAID NIH HHS/ -- etc. -- New York, N.Y. -- Science. 1997 Nov 14;278(5341):1295-300.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Medicine, Johns Hopkins University School of Medicine, Baltimore, MD 21205, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/9360927" target="_blank"〉PubMed〈/a〉
    Keywords: Anti-HIV Agents/pharmacology/*therapeutic use ; CD4-Positive T-Lymphocytes/immunology/*virology ; Cell Separation ; Cross-Sectional Studies ; Drug Resistance, Microbial/genetics ; Drug Therapy, Combination ; HIV Infections/*drug therapy/*virology ; HIV-1/drug effects/genetics/isolation & purification/*physiology ; Humans ; Immunologic Memory ; Lymphocyte Activation ; Mutation ; Proviruses/physiology ; RNA, Viral/blood ; Time Factors ; Viral Load ; Viremia ; Virus Integration ; *Virus Latency ; *Virus Replication
    Print ISSN: 0036-8075
    Electronic ISSN: 1095-9203
    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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  • 2
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    Niemann-Pick C1 disease gene: homology to mediators of cholesterol homeostasis (1997)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1997-07-11
    Description: Niemann-Pick type C (NP-C) disease, a fatal neurovisceral disorder, is characterized by lysosomal accumulation of low density lipoprotein (LDL)-derived cholesterol. By positional cloning methods, a gene (NPC1) with insertion, deletion, and missense mutations has been identified in NP-C patients. Transfection of NP-C fibroblasts with wild-type NPC1 cDNA resulted in correction of their excessive lysosomal storage of LDL cholesterol, thereby defining the critical role of NPC1 in regulation of intracellular cholesterol trafficking. The 1278-amino acid NPC1 protein has sequence similarity to the morphogen receptor PATCHED and the putative sterol-sensing regions of SREBP cleavage-activating protein (SCAP) and 3-hydroxy-3-methyl-glutaryl coenzyme A (HMG-CoA) reductase.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Carstea, E D -- Morris, J A -- Coleman, K G -- Loftus, S K -- Zhang, D -- Cummings, C -- Gu, J -- Rosenfeld, M A -- Pavan, W J -- Krizman, D B -- Nagle, J -- Polymeropoulos, M H -- Sturley, S L -- Ioannou, Y A -- Higgins, M E -- Comly, M -- Cooney, A -- Brown, A -- Kaneski, C R -- Blanchette-Mackie, E J -- Dwyer, N K -- Neufeld, E B -- Chang, T Y -- Liscum, L -- Strauss, J F 3rd -- Ohno, K -- Zeigler, M -- Carmi, R -- Sokol, J -- Markie, D -- O'Neill, R R -- van Diggelen, O P -- Elleder, M -- Patterson, M C -- Brady, R O -- Vanier, M T -- Pentchev, P G -- Tagle, D A -- New York, N.Y. -- Science. 1997 Jul 11;277(5323):228-31.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉National Institute of Neurological Disorders and Stroke, National Institutes of Health, Bethesda, MD 20892, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/9211849" target="_blank"〉PubMed〈/a〉
    Keywords: Amino Acid Sequence ; *Carrier Proteins ; Cholesterol/*metabolism ; Cholesterol, LDL/metabolism ; Chromosome Mapping ; Chromosomes, Human, Pair 18 ; Cloning, Molecular ; *Drosophila Proteins ; Homeostasis ; Humans ; Hydroxymethylglutaryl CoA Reductases/chemistry ; Insect Proteins/chemistry ; Intracellular Signaling Peptides and Proteins ; Lysosomes/metabolism ; *Membrane Glycoproteins ; Membrane Proteins/chemistry ; Molecular Sequence Data ; Mutation ; Niemann-Pick Diseases/*genetics/metabolism ; Polymorphism, Single-Stranded Conformational ; Proteins/chemistry/*genetics/physiology ; Receptors, Cell Surface/chemistry ; Sequence Homology, Amino Acid ; Transfection
    Print ISSN: 0036-8075
    Electronic ISSN: 1095-9203
    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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  • 3
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    Identification of the tuberous sclerosis gene TSC1 on chromosome 9q34 (1997)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1997-08-08
    Description: Tuberous sclerosis complex (TSC) is an autosomal dominant disorder characterized by the widespread development of distinctive tumors termed hamartomas. TSC-determining loci have been mapped to chromosomes 9q34 (TSC1) and 16p13 (TSC2). The TSC1 gene was identified from a 900-kilobase region containing at least 30 genes. The 8.6-kilobase TSC1 transcript is widely expressed and encodes a protein of 130 kilodaltons (hamartin) that has homology to a putative yeast protein of unknown function. Thirty-two distinct mutations were identified in TSC1, 30 of which were truncating, and a single mutation (2105delAAAG) was seen in six apparently unrelated patients. In one of these six, a somatic mutation in the wild-type allele was found in a TSC-associated renal carcinoma, which suggests that hamartin acts as a tumor suppressor.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉van Slegtenhorst, M -- de Hoogt, R -- Hermans, C -- Nellist, M -- Janssen, B -- Verhoef, S -- Lindhout, D -- van den Ouweland, A -- Halley, D -- Young, J -- Burley, M -- Jeremiah, S -- Woodward, K -- Nahmias, J -- Fox, M -- Ekong, R -- Osborne, J -- Wolfe, J -- Povey, S -- Snell, R G -- Cheadle, J P -- Jones, A C -- Tachataki, M -- Ravine, D -- Sampson, J R -- Reeve, M P -- Richardson, P -- Wilmer, F -- Munro, C -- Hawkins, T L -- Sepp, T -- Ali, J B -- Ward, S -- Green, A J -- Yates, J R -- Kwiatkowska, J -- Henske, E P -- Short, M P -- Haines, J H -- Jozwiak, S -- Kwiatkowski, D J -- New York, N.Y. -- Science. 1997 Aug 8;277(5327):805-8.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Clinical Genetics, Erasmus University and University Hospital, Rotterdam, Netherlands.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/9242607" target="_blank"〉PubMed〈/a〉
    Keywords: Amino Acid Sequence ; Chromosome Mapping ; Chromosomes, Human, Pair 9/*genetics ; Exons ; *Genes, Tumor Suppressor ; Humans ; Microsatellite Repeats ; Molecular Sequence Data ; Molecular Weight ; Mutation ; Polymerase Chain Reaction ; Proteins/chemistry/*genetics/physiology ; Repressor Proteins/genetics/physiology ; Tuberous Sclerosis/*genetics ; Tumor Suppressor Proteins
    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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    Enduring cognitive deficits and cortical dopamine dysfunction in monkeys after long-term administration of phencyclidine (1997)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1997-08-15
    Description: The effects of the psychotomimetic drug phencyclidine on the neurochemistry and function of the prefrontal cortex in vervet monkeys were investigated. Monkeys treated with phencyclidine twice a day for 14 days displayed performance deficits on a task that was sensitive to prefrontal cortex function; the deficits were ameliorated by the atypical antipsychotic drug clozapine. Repeated exposure to phencyclidine caused a reduction in both basal and evoked dopamine utilization in the dorsolateral prefrontal cortex, a brain region that has long been associated with cognitive function. Behavioral deficits and decreased dopamine utilization remained after phencyclidine treatment was stopped, an indication that these effects were not simply due to direct drug effects. The data suggest that repeated administration of phencyclidine in monkeys may be useful for studying psychiatric disorders associated with cognitive dysfunction and dopamine hypofunction in the prefrontal cortex, particularly schizophrenia.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Jentsch, J D -- Redmond, D E Jr -- Elsworth, J D -- Taylor, J R -- Youngren, K D -- Roth, R H -- MH14092/MH/NIMH NIH HHS/ -- MH44866/MH/NIMH NIH HHS/ -- RSA K05-MH00643/MH/NIMH NIH HHS/ -- New York, N.Y. -- Science. 1997 Aug 15;277(5328):953-5.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Section of Neurobiology, Yale University School of Medicine, New Haven, CT, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/9252326" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Antipsychotic Agents/pharmacology ; Behavior, Animal/drug effects ; Cercopithecus aethiops ; Clozapine/pharmacology ; Cognition/*drug effects ; Disease Models, Animal ; Dopamine/*metabolism ; Excitatory Amino Acid Antagonists/administration & dosage/*pharmacology ; Humans ; Phencyclidine/administration & dosage/*pharmacology ; Prefrontal Cortex/*drug effects/metabolism ; Schizophrenia/chemically induced/drug therapy/metabolism ; Time Factors
    Print ISSN: 0036-8075
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    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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  • 5
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    Recovery of replication-competent HIV despite prolonged suppression of plasma viremia (1997)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1997-11-21
    Description: In evaluating current combination drug regimens for treatment of human immunodeficiency virus (HIV) disease, it is important to determine the existence of viral reservoirs. After depletion of CD8 cells from the peripheral blood mononuclear cells (PBMCs) of both patients and normal donors, activation of patient CD4 lymphocytes with immobilized antibodies to CD3 and CD28 enabled the isolation of virus from PBMCs of six patients despite the suppression of their plasma HIV RNA to fewer than 50 copies per milliliter for up to 2 years. Partial sequencing of HIV pol revealed no new drug resistance mutations or discernible evolution, providing evidence for viral latency rather than drug failure.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Wong, J K -- Hezareh, M -- Gunthard, H F -- Havlir, D V -- Ignacio, C C -- Spina, C A -- Richman, D D -- AI 01361/AI/NIAID NIH HHS/ -- AI 27670/AI/NIAID NIH HHS/ -- AI 38858/AI/NIAID NIH HHS/ -- etc. -- New York, N.Y. -- Science. 1997 Nov 14;278(5341):1291-5.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Medicine, University of California, San Diego, School of Medicine, 9500 Gilman Drive, La Jolla, CA 92093, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/9360926" target="_blank"〉PubMed〈/a〉
    Keywords: Anti-HIV Agents/*therapeutic use ; CD4-Positive T-Lymphocytes/immunology/*virology ; Coculture Techniques ; Drug Resistance, Microbial/genetics ; Drug Therapy, Combination ; HIV Infections/*drug therapy/*virology ; HIV-1/genetics/isolation & purification/*physiology ; Humans ; Immunologic Memory ; Indinavir/therapeutic use ; Lamivudine/therapeutic use ; Lymphocyte Activation ; Mutation ; RNA, Viral/analysis/blood ; T-Lymphocyte Subsets/immunology/virology ; Viral Load ; Viremia/*drug therapy/virology ; Virus Activation ; Virus Latency ; Virus Replication ; Zidovudine/therapeutic use
    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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    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
    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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    An information-intensive approach to the molecular pharmacology of cancer (1997)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1997-01-17
    Description: Since 1990, the National Cancer Institute (NCI) has screened more than 60,000 compounds against a panel of 60 human cancer cell lines. The 50-percent growth-inhibitory concentration (GI50) for any single cell line is simply an index of cytotoxicity or cytostasis, but the patterns of 60 such GI50 values encode unexpectedly rich, detailed information on mechanisms of drug action and drug resistance. Each compound's pattern is like a fingerprint, essentially unique among the many billions of distinguishable possibilities. These activity patterns are being used in conjunction with molecular structural features of the tested agents to explore the NCI's database of more than 460,000 compounds, and they are providing insight into potential target molecules and modulators of activity in the 60 cell lines. For example, the information is being used to search for candidate anticancer drugs that are not dependent on intact p53 suppressor gene function for their activity. It remains to be seen how effective this information-intensive strategy will be at generating new clinically active agents.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Weinstein, J N -- Myers, T G -- O'Connor, P M -- Friend, S H -- Fornace, A J Jr -- Kohn, K W -- Fojo, T -- Bates, S E -- Rubinstein, L V -- Anderson, N L -- Buolamwini, J K -- van Osdol, W W -- Monks, A P -- Scudiero, D A -- Sausville, E A -- Zaharevitz, D W -- Bunow, B -- Viswanadhan, V N -- Johnson, G S -- Wittes, R E -- Paull, K D -- New York, N.Y. -- Science. 1997 Jan 17;275(5298):343-9.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Laboratory of Molecular Pharmacology (LMP), Division of Basic Science, National Cancer Institute (NCI), National Institutes of Health, Bethesda, MD 20892, USA. weinstein@dtpax2.ncifcrf.gov〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/8994024" target="_blank"〉PubMed〈/a〉
    Keywords: Algorithms ; Antineoplastic Agents/chemistry/*pharmacology ; Cluster Analysis ; *Computational Biology ; Computer Communication Networks ; *Databases, Factual ; *Drug Screening Assays, Antitumor ; Genes, p53 ; Humans ; Molecular Structure ; Mutation ; Software ; Tumor Cells, Cultured ; Tumor Suppressor Protein p53/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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  • 8
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    Relationship of Topside Ionospheric Ion Outflows to Auroral Forms and Precipitations, Plasma Waves, and Convection Observed by POLAR (1997)
    In:  Other Sources
    Details
    Publication Date: 2019-07-17
    Description: The POLAR satellite often observes upflowing ionospheric ions (UFls) in and near the auroral oval on southern perigee (approximately 5000 km altitude) passes. We present the UFI features observed by the thermal ion dynamics experiment (TIDE) and the toroidal imaging mass-angle spectrograph (TIMAS) in the dusk-dawn sector under two different geomagnetic activity conditions in order to elicit their relationships with auroral forms, wave emissions, and convection pattern from additional POLAR instruments. During the active interval, the ultraviolet imager (UVI) observed a bright discrete aurora on the dusk side after the substorm onset and then observed a small isolated aurora form and diffuse auroras on the dawn side during the recovery phase. The UFls showed clear conic distributions when the plasma wave instrument (PWI) detected strong broadband wave emissions below approximately 10 kHz, while no significant auroral activities were observed by UVI. At higher latitudes, the low-energy UFI conics gradually changed to the polar wind component with decreasing intensity of the broadband emissions. V-shaped auroral kilometric radiation (AKR) signatures observed above approximately 200 kHz by PWI coincided with the region where the discrete aurora and the UFI beams were detected. The latitude of these features was lower than that of the UFI conics. During the observations of the UFI beams and conics, the lower-frequency fluctuations observed by the electric field instrument (EFI) were also enhanced, and the convection directions exhibited large fluctuations. It is evident that large electrostatic potential drops produced the precipitating electrons and discrete auroras, the UFI beams, and the AKR, which is also supported by the energetic plasma data from HYDRA. Since the intense broadband emissions were also observed with the UFIs. the ionospheric ions could be energized transversely before or during the parallel acceleration due to the potential drops.
    Keywords: Geophysics
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    NASA TECHNICAL REPORTS
  • 9
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    Angiopoietin-2, a natural antagonist for Tie2 that disrupts in vivo angiogenesis (1997)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1997-07-04
    Description: Angiogenesis is thought to depend on a precise balance of positive and negative regulation. Angiopoietin-1 (Ang1) is an angiogenic factor that signals through the endothelial cell-specific Tie2 receptor tyrosine kinase. Like vascular endothelial growth factor, Ang1 is essential for normal vascular development in the mouse. An Ang1 relative, termed angiopoietin-2 (Ang2), was identified by homology screening and shown to be a naturally occurring antagonist for Ang1 and Tie2. Transgenic overexpression of Ang2 disrupts blood vessel formation in the mouse embryo. In adult mice and humans, Ang2 is expressed only at sites of vascular remodeling. Natural antagonists for vertebrate receptor tyrosine kinases are atypical; thus, the discovery of a negative regulator acting on Tie2 emphasizes the need for exquisite regulation of this angiogenic receptor system.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Maisonpierre, P C -- Suri, C -- Jones, P F -- Bartunkova, S -- Wiegand, S J -- Radziejewski, C -- Compton, D -- McClain, J -- Aldrich, T H -- Papadopoulos, N -- Daly, T J -- Davis, S -- Sato, T N -- Yancopoulos, G D -- New York, N.Y. -- Science. 1997 Jul 4;277(5322):55-60.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Regeneron Pharmaceuticals Inc., 777 Old Saw Mill River Road, Tarrytown, NY 10591, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/9204896" target="_blank"〉PubMed〈/a〉
    Keywords: Amino Acid Sequence ; Angiopoietin-1 ; Angiopoietin-2 ; Animals ; Blood Vessels/embryology/*metabolism ; Cells, Cultured ; Cloning, Molecular ; Embryo, Mammalian/metabolism ; Endothelial Growth Factors/genetics/metabolism ; Endothelium, Vascular/*cytology/metabolism ; Female ; Humans ; Ligands ; Lymphokines/genetics/metabolism ; Membrane Glycoproteins/antagonists & inhibitors/metabolism ; Mice ; Mice, Transgenic ; Molecular Sequence Data ; *Neovascularization, Physiologic ; Phosphorylation ; Proteins/chemistry/*metabolism ; Rats ; Rats, Sprague-Dawley ; Receptor Protein-Tyrosine Kinases/*antagonists & inhibitors/metabolism ; Receptor, TIE-2 ; Recombinant Fusion Proteins/metabolism ; Signal Transduction ; Vascular Endothelial Growth Factor A ; Vascular Endothelial Growth Factors
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  • 10
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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
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    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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