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  • Life and Medical Sciences  (162)
  • Humans  (96)
  • ASTROPHYSICS  (67)
  • 2020-2024
  • 2015-2019
  • 1995-1999  (325)
  • 1985-1989
  • 1920-1924
  • 1995  (325)
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  • 2020-2024
  • 2015-2019
  • 1995-1999  (325)
  • 1985-1989
  • 1920-1924
Year
  • 1
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    An STS-based map of the human genome (1995)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1995-12-22
    Description: A physical map has been constructed of the human genome containing 15,086 sequence-tagged sites (STSs), with an average spacing of 199 kilobases. The project involved assembly of a radiation hybrid map of the human genome containing 6193 loci and incorporated a genetic linkage map of the human genome containing 5264 loci. This information was combined with the results of STS-content screening of 10,850 loci against a yeast artificial chromosome library to produce an integrated map, anchored by the radiation hybrid and genetic maps. The map provides radiation hybrid coverage of 99 percent and physical coverage of 94 percent of the human genome. The map also represents an early step in an international project to generate a transcript map of the human genome, with more than 3235 expressed sequences localized. The STSs in the map provide a scaffold for initiating large-scale sequencing of the human genome.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Hudson, T J -- Stein, L D -- Gerety, S S -- Ma, J -- Castle, A B -- Silva, J -- Slonim, D K -- Baptista, R -- Kruglyak, L -- Xu, S H -- Hu, X -- Colbert, A M -- Rosenberg, C -- Reeve-Daly, M P -- Rozen, S -- Hui, L -- Wu, X -- Vestergaard, C -- Wilson, K M -- Bae, J S -- Maitra, S -- Ganiatsas, S -- Evans, C A -- DeAngelis, M M -- Ingalls, K A -- Nahf, R W -- Horton, L T Jr -- Anderson, M O -- Collymore, A J -- Ye, W -- Kouyoumjian, V -- Zemsteva, I S -- Tam, J -- Devine, R -- Courtney, D F -- Renaud, M T -- Nguyen, H -- O'Connor, T J -- Fizames, C -- Faure, S -- Gyapay, G -- Dib, C -- Morissette, J -- Orlin, J B -- Birren, B W -- Goodman, N -- Weissenbach, J -- Hawkins, T L -- Foote, S -- Page, D C -- Lander, E S -- HG00017/HG/NHGRI NIH HHS/ -- HG00098/HG/NHGRI NIH HHS/ -- New York, N.Y. -- Science. 1995 Dec 22;270(5244):1945-54.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Whitehead-MIT Center for Genome Research, Whitehead Institute for Biomedical Research, Cambridge, MA 02142, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/8533086" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Cell Line ; *Chromosome Mapping ; Chromosomes, Artificial, Yeast ; Databases, Factual ; Gene Expression ; Genetic Markers ; *Genome, Human ; *Human Genome Project ; Humans ; Hybrid Cells ; Polymerase Chain Reaction ; *Sequence Analysis, DNA ; *Sequence Tagged Sites
    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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    Inhibitors of HIV nucleocapsid protein zinc fingers as candidates for the treatment of AIDS (1995)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1995-11-17
    Description: Strategies for the treatment of human immunodeficiency virus-type 1 (HIV-1) infection must contend with the obstacle of drug resistance. HIV-1 nucleocapsid protein zinc fingers are prime antiviral targets because they are mutationally intolerant and are required both for acute infection and virion assembly. Nontoxic disulfide-substituted benzamides were identified that attack the zinc fingers, inactivate cell-free virions, inhibit acute and chronic infections, and exhibit broad antiretroviral activity. The compounds were highly synergistic with other antiviral agents, and resistant mutants have not been detected. Zinc finger-reactive compounds may offer an anti-HIV strategy that restricts drug-resistance development.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Rice, W G -- Supko, J G -- Malspeis, L -- Buckheit, R W Jr -- Clanton, D -- Bu, M -- Graham, L -- Schaeffer, C A -- Turpin, J A -- Domagala, J -- Gogliotti, R -- Bader, J P -- Halliday, S M -- Coren, L -- Sowder, R C 2nd -- Arthur, L O -- Henderson, L E -- New York, N.Y. -- Science. 1995 Nov 17;270(5239):1194-7.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Laboratory of Antiviral Drug Mechanisms, PRI/DynCorp., National Cancer Institute-Frederick Cancer Research and Development Center, MD 21702, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/7502043" target="_blank"〉PubMed〈/a〉
    Keywords: Amino Acid Sequence ; Animals ; Antiviral Agents/chemistry/pharmacokinetics/*pharmacology ; Benzamides/chemistry/pharmacokinetics/*pharmacology ; Biological Availability ; Capsid/chemistry/*metabolism ; *Capsid Proteins ; Cell Line ; Disulfides/chemistry/pharmacokinetics/*pharmacology ; Drug Resistance, Microbial ; Drug Synergism ; Gene Products, gag/*antagonists & inhibitors/chemistry ; HIV-1/*drug effects/physiology ; Humans ; Male ; Mice ; Molecular Sequence Data ; *Viral Proteins ; Zinc Fingers/*drug effects ; gag Gene Products, Human Immunodeficiency Virus
    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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    Translational suppression by trinucleotide repeat expansion at FMR1 (1995)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1995-05-05
    Description: Fragile X syndrome is the result of the unstable expansion of a trinucleotide repeat in the 5'-untranslated region of the FMR1 gene. Fibroblast subclones from a mildly affected patient, each containing stable FMR1 alleles with 57 to 285 CGG repeats, were shown to exhibit normal steady-state levels of FMR1 messenger RNA. However, FMR protein was markedly diminished from transcript with more than 200 repeats. Such transcripts were associated with stalled 40S ribosomal subunits. These results suggest that a structural RNA transition beyond 200 repeats impedes the linear 40S migration along the 5'-untranslated region. This results in translational inhibition by trinucleotide repeat expansion.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Feng, Y -- Zhang, F -- Lokey, L K -- Chastain, J L -- Lakkis, L -- Eberhart, D -- Warren, S T -- HD20521/HD/NICHD NIH HHS/ -- New York, N.Y. -- Science. 1995 May 5;268(5211):731-4.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Howard Hughes Medical Institute, Emory University School of Medicine, Atlanta, GA 30322.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/7732383" target="_blank"〉PubMed〈/a〉
    Keywords: Centrifugation, Density Gradient ; Clone Cells ; Down-Regulation/genetics ; Female ; Fibroblasts/chemistry ; Fragile X Mental Retardation Protein ; Fragile X Syndrome/*genetics ; Humans ; Infant ; Male ; Nerve Tissue Proteins/*genetics ; Polymerase Chain Reaction ; Protein Biosynthesis/*genetics ; RNA, Messenger/analysis ; *RNA-Binding Proteins ; Repetitive Sequences, Nucleic Acid/*genetics
    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 morbillivirus that caused fatal disease in horses and humans (1995)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1995-04-07
    Description: A morbillivirus has been isolated and added to an increasing list of emerging viral diseases. This virus caused an outbreak of fatal respiratory disease in horses and humans. Genetic analyses show it to be only distantly related to the classic morbilliviruses rinderpest, measles, and canine distemper. When seen by electron microscopy, viruses had 10- and 18-nanometer surface projections that gave them a "double-fringed" appearance. The virus induced syncytia that developed in the endothelium of blood vessels, particularly the lungs.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Murray, K -- Selleck, P -- Hooper, P -- Hyatt, A -- Gould, A -- Gleeson, L -- Westbury, H -- Hiley, L -- Selvey, L -- Rodwell, B -- New York, N.Y. -- Science. 1995 Apr 7;268(5207):94-7.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉CSIRO Australian Animal Health Laboratory, East Geelong, Victoria.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/7701348" target="_blank"〉PubMed〈/a〉
    Keywords: Adult ; Amino Acid Sequence ; Animals ; Base Sequence ; Cercopithecus aethiops ; Disease Outbreaks/*veterinary ; Female ; Horse Diseases/epidemiology/mortality/*virology ; Horses ; Humans ; Kidney/virology ; Lung/virology ; Male ; Middle Aged ; Molecular Sequence Data ; Morbillivirus/genetics/*isolation & purification ; Morbillivirus Infections/epidemiology/mortality/*veterinary/*virology ; Pregnancy ; Queensland/epidemiology ; Respiratory Tract Infections/veterinary/virology ; Spleen/virology ; Vero Cells ; Virus Cultivation
    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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    Weight-reducing effects of the plasma protein encoded by the obese gene (1995)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1995-07-28
    Description: The gene product of the ob locus is important in the regulation of body weight. The ob product was shown to be present as a 16-kilodalton protein in mouse and human plasma but was undetectable in plasma from C57BL/6J ob/ob mice. Plasma levels of this protein were increased in diabetic (db) mice, a mutant thought to be resistant to the effects of ob. Daily intraperitoneal injections of either mouse or human recombinant OB protein reduced the body weight of ob/ob mice by 30 percent after 2 weeks of treatment with no apparent toxicity but had no effect on db/db mice. The protein reduced food intake and increased energy expenditure in ob/ob mice. Injections of wild-type mice twice daily with the mouse protein resulted in a sustained 12 percent weight loss, decreased food intake, and a reduction of body fat from 12.2 to 0.7 percent. These data suggest that the OB protein serves an endocrine function to regulate body fat stores.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Halaas, J L -- Gajiwala, K S -- Maffei, M -- Cohen, S L -- Chait, B T -- Rabinowitz, D -- Lallone, R L -- Burley, S K -- Friedman, J M -- DK41096/DK/NIDDK NIH HHS/ -- RR00862/RR/NCRR NIH HHS/ -- New York, N.Y. -- Science. 1995 Jul 28;269(5223):543-6.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Laboratory of Molecular Genetics, Howard Hughes Medical Institute, Rockfeller University, New York, NY 10021, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/7624777" target="_blank"〉PubMed〈/a〉
    Keywords: Adipose Tissue/drug effects ; Animals ; Blood Glucose/analysis ; Body Composition/drug effects ; Diabetes Mellitus/blood/physiopathology ; Eating/drug effects ; Energy Metabolism/drug effects ; Female ; Humans ; Leptin ; Mice ; Mice, Inbred C57BL ; Mice, Obese ; Obesity/blood/genetics/*physiopathology ; Proteins/analysis/genetics/*pharmacology/physiology ; Recombinant Proteins/administration & dosage/pharmacology ; Weight Loss/*drug effects
    Print ISSN: 0036-8075
    Electronic ISSN: 1095-9203
    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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  • 6
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    BATSE observations of gamma-ray burst spectra. 2: Peak energy evolution in bright, long bursts (1995)
    In:  Other Sources
    Details
    Publication Date: 2019-07-13
    Description: We investigate spectral evolution in 37 bright, long gamma-ray bursts observed with the Burst and Transient Source Experiment (BATSE) spectroscopy detectors. High-resolution spectra are chracterized by the energy of the peak of nu F(sub nu), and the evolution of this quantity is examined relative to the emission intensity. In most cases it is found that this peak energy either rises with or slightly precedes major intensity increases and softens for the remainder of the pulse. Interpulse emission is generally harder early in the burst. For bursts with multiple intensity pulses, later spikes tend to be softer than earlier ones, indicating that the energy of the peak of nu F(sub nu) is bounded by an envelope which decays with time. Evidence is found that bursts in which the bulk of the flux comes well after the event which triggers the instrument tend to show less peak energy variability and are not as hard as several bursts in which the emission occurs promptly after the trigger. Several recently proposed burst models are examined in light of these results and no qualitative conflicts with the observations presented here are found.
    Keywords: ASTROPHYSICS
    Type: Astrophysical Journal, Part 1 (ISSN 0004-637X); 439; 1; p. 307-321
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    NASA TECHNICAL REPORTS
  • 7
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    The unusual helium variable AM Canum Venaticorum (1995)
    In:  Other Sources
    Details
    Publication Date: 2019-08-28
    Description: The unusual variable star AM CVn has puzzled astronomers for over 40 years. This object, both a photometric and spectroscopic variable, is believed to contain a pair of hydrogen-deficient white dwarfs of extreme mass ratio, transferring material via an accretion disk. We examine the photometric properties of AM CVn, analyzing 289 hours of high-speed photometric data spanning 1976 to 1992. The power spectrum displays significant peaks at 988.7, 1248.8, 1902.5, 2853.8, 3805.2, 4756.5, and 5707.8 microHz (1011.4, 800.8, 525.6, 350.4, 262.8, 210.2, and 175.2 s). We find no detectable power at 951.3 microHz (1051 s), the previously reported main frequency. The 1902.5, 2853.9, and 3805.2 microHz peaks are multiplets, with frequency splitting in each case of 20.77 +/- 0.05 microHz. The 1902.5 microHz seasonal pulse shapes are identical, within measurement noise, and maintain the same amplitude and phase as a function of color. We have determined the dominant frequency to be 1902.50902 +/- 0.00001 microHz with dot P = +1.71 (+/- 0.04) x 10(exp -11) s/s. We discuss the implications of these findings on a model for AM CVn.
    Keywords: ASTROPHYSICS
    Type: Astrophysical Journal, Part 1 (ISSN 0004-637X); 445; 2; p. 927-938
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    NASA TECHNICAL REPORTS
  • 8
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    Chromospheric variations in main-sequence stars (1995)
    In:  Other Sources
    Details
    Publication Date: 2019-08-28
    Description: The fluxes in passbands 0.1 nm wide and centered on the Ca II H and K emission cores have been monitored in 111 stars of spectral type F2-M2 on or near the main sequence in a continuation of an observing program started by O. C. Wilson. Most of the measurements began in 1966, with observations scheduled monthly until 1980, when observations were schedueld sevral times per week. The records, with a long-term precision of about 1.5%, display fluctuations that can be idntified with variations on timescales similar to the 11 yr cycle of solar activity as well as axial rotation, and the growth and decay of emitting regions. We present the records of chromospheric emission and general conclusions about variations in surface magnetic activity on timescales greater than 1 yr but less than a few decades. The results for stars of spectral type G0-K5 V indicate a pattern of change in rotation and chromospheric activity on an evolutionary timescale, in which (1) young stars exhibit high average levels of activity, rapid rotation rates, no Maunder minimum phase and rarely display a smooth, cyclic variation; (2) stars of intermediate age (approximately 1-2 Gyr for 1 solar mass) have moderate levels of activity and rotation rates, and occasional smooth cycles; and (3) stars as old as the Sun and older have slower rotation rates, lower activity levels and smooth cycles with occasional Maunder minimum-phases.
    Keywords: ASTROPHYSICS
    Type: Astrophysical Journal, Part 1 (ISSN 0004-637X); 438; 1; p. 269-287
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  • 9
    Electronic Resource
    Electronic Resource
    In vivo occupancy of histone gene proximal promoter elements reflects gene copy number-dependent titratable transactivation factors and cross-species compatibility of regulatory sequences (1995)
    New York, N.Y. : Wiley-Blackwell
    Journal of Cellular Biochemistry 57 (1995), S. 191-207 
    Details
    ISSN: 0730-2312
    Keywords: histone gene transcription ; chromosome ; H4 gene ; C127 cell ; titratable transcription factors ; Life and Medical Sciences ; Cell & Developmental Biology
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Biology , Chemistry and Pharmacology , Medicine
    Notes: To assess systematically the structural and functional aspects of histone gene transcription within a chromosomal context, we stably integrated an extensive set of human histone H4 gene constructs into mouse C127 cells. Levels of expression were determined by S1 nuclease protection assays for multiple mouse monoclonal cell lines containing these human H4 genes. For each cell line, we quantitated the number of integrated human H4 genes by Southern blot analysis. The results indicate that the expression of the human H4 gene is in part copy number dependent at low gene dosages. However, the level of expression varies among different cell lines containing similar numbers of copies of the same H4 gene construct. This result suggests that position-dependent chromosomal integration effects contribute to H4 gene transcription, consistent with the roles of long-range gene organization and nuclear architecture in gene regulation. At high copy number, the level of human H4 gene expression per copy decreased, and endogenous mouse H4 mRNA levels were also reduced. Furthermore, in vivo occupancy at the human H4 gene immediate 5′ regulatory elements, as defined by genomic fingerprinting, showed copy number-dependent protein/DNA interactions. Hence, human and mouse H4 genes compete for titratable transcription factors in a cellular environment. Taken together, these results indicate cross-species compatibility and suggest limited representation in vivo of the factors involved in regulating histone H4 gene transcription.
    Additional Material: 12 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/jcb.240570204
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  • 10
    Electronic Resource
    Electronic Resource
    Cultured AIDS-related kaposi's sarcoma (AIDS-KS) cells demonstrate impaired bioenergetic adaptation to oxidant challenge: Implication for oxidant stress in AIDS-KS pathogenesis (1995)
    New York, N.Y. : Wiley-Blackwell
    Journal of Cellular Biochemistry 59 (1995), S. 317-328 
    Details
    ISSN: 0730-2312
    Keywords: reactive oxygen intermediates ; nucleotides ; glutathione ; redox state ; energy charge ; DNA damage ; apoptosis ; Life and Medical Sciences ; Cell & Developmental Biology
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Biology , Chemistry and Pharmacology , Medicine
    Notes: Despite its recognition as the most prevalent HIV associated cancer, speculation still abounds regarding the pathogenesis of AIDS-related Kaposi's sarcoma (AIDS-KS). However, it has been established that both cytokines, e.g. IL-6, and HIV-associated products, e.g., Tat, are integral in AIDS-KS cellular proliferation. Further, both experimental and clinical evidence is accumulating to link reactive oxygen intermediates (ROI) with both cytokine induction (primarily via nuclear factor-κB [NF-κB] dependent routes) as well as the subsequent cytokine, tumor necrosis factor α (TNFα) stimulation of HIV replication. Features of AIDS-KS patients, such as retention of phagocytes, presence of sustained immunostimulation, and a frequent history of KS lesions arising at traumatized sites, make oxidant stress a viable clinical factor in AIDS-KS development. Time course nucleotide profile analyses show that AIDS-KS cells have an inherent, statistically significant, biochemical deficit, even prior to oxidant stress, due to (1) a more glycolytic bioenergetic profile, resulting in lower levels of high energy phosphates (impairing capacity for glutathione [GSH] synthesis and DNA repair); (2) lower levels of NADPH (compromising the activities of GSSG reductase and peroxidase function of catalase); and (3) reduced levels of GSH (impeding both GSH peroxidase and GSH-S-transferases). Following exposure to physiologically relevant levels of H2O2 only the human microvascular endothelial cells (a putative AIDS-KS progenitor cell) responded with bioenergetic adaptations that reflected co-ordination of energy generating and cytoprotective pathways, e.g., retention of the cellular energy charge, increased NAD+, and an accentuation of the ATP, NADPH, and total adenine nucleotide differences relative to AIDS-KS cells. Also, some of the AIDS-KS strains retained intracellular GSSG subsequent to oxidant challenge, inviting the formation of deleterious protein mixed disulfides. While the results of our study address some AIDS-KS issues, they also raise an etiological question, i.e., Does the inability to tolerate oxidant stress arise in conjunction with AIDS-KS neoplastic development, or is it pre-existing in the population at risk? Regardless, use of antioxidant therapy (low risk/potentially high benefit) in both the “at risk” population as well as in those individuals with active disease may prove a useful preventative and/or treatment modality. © 1995 Wiley-Liss, Inc.
    Additional Material: 2 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/jcb.240590304
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