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  • Analytical Chemistry and Spectroscopy  (752)
  • LUNAR AND PLANETARY EXPLORATION  (446)
  • Animals  (383)
  • Aerodynamics
  • 1985-1989  (1,581)
  • 1935-1939  (4)
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Years
Year
  • 1
    Publication Date: 1985-12-06
    Description: Human recombinant granulocyte-macrophage colony-stimulating factor (GM-CSF) was tested for its ability to induce colony formation in human bone marrow that had been enriched for progenitor cells. In addition to its expected granulocyte-monocyte colony-stimulating activity, the recombinant GM-CSF had burst-promoting activity for erythroid burst-forming units and also stimulated colonies derived from multipotent (mixed) progenitors. In contrast, recombinant erythroid-potentiating activity did not stimulate erythroid progenitors. The experiments prove that human GM-CSF has multilineage colony-stimulating activity.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Sieff, C A -- Emerson, S G -- Donahue, R E -- Nathan, D G -- Wang, E A -- Wong, G G -- Clark, S C -- New York, N.Y. -- Science. 1985 Dec 6;230(4730):1171-3.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/3877981" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Bone Marrow/*drug effects ; Colony-Stimulating Factors/biosynthesis/*pharmacology ; DNA/genetics ; Dose-Response Relationship, Drug ; Erythroblasts/drug effects ; Granulocytes/*drug effects ; Humans ; Macrophages/*drug effects ; Mice ; Recombinant Proteins/*pharmacology ; Stem Cells/drug effects ; T-Lymphocytes/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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  • 2
    Publication Date: 2011-08-19
    Description: Voyager 2 undertook radio science investigations of the Neptune and Triton masses and densities, as well as of their atmospheric and ionospheric vertical structures, the atmospheric composition and low-order gravitational harmonics of Neptune, and ring material characteristics. Upon probing the atmosphere of Neptune to a pressure level of about 500,000 Pa, the effects of a methane cloud region and of ammonia absorption below the cloud have become apparent. The tenuous neutral atmosphere of Triton produced distinct signatures in the occultation data; it is inferred that the Triton atmosphere is controlled by water-pressure equilibrium with surface ices.
    Keywords: LUNAR AND PLANETARY EXPLORATION
    Type: Science (ISSN 0036-8075); 246; 1466-147
    Format: text
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  • 3
    ISSN: 0030-493X
    Keywords: Chemistry ; Analytical Chemistry and Spectroscopy
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Additional Material: 6 Ill.
    Type of Medium: Electronic Resource
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  • 4
    Publication Date: 1989-06-16
    Description: A technique for the transfer of endothelial cells and expression of recombinant genes in vivo could allow the introduction of proteins of therapeutic value in the management of cardiovascular diseases. Porcine endothelial cells expressing recombinant beta-galactosidase from a murine amphotropic retroviral vector were introduced with a catheter into denuded iliofemoral arteries of syngeneic animals. Arterial segments explanted 2 to 4 weeks later contained endothelial cells expressing beta-galactosidase, an indication that they were successfully implanted on the vessel wall.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Nabel, E G -- Plautz, G -- Boyce, F M -- Stanley, J C -- Nabel, G J -- New York, N.Y. -- Science. 1989 Jun 16;244(4910):1342-4.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Internal Medicine, University of Michigan Medical Center, Ann Arbor 48109-0650.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/2499928" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Catheterization, Peripheral ; DNA, Recombinant ; Endothelium, Vascular/*cytology/enzymology/transplantation ; Female ; Galactosidases/*biosynthesis ; Genetic Vectors ; Iliac Artery/cytology ; Retroviridae ; Swine ; Swine, Miniature ; beta-Galactosidase/*biosynthesis
    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
    Publication Date: 1989-11-03
    Description: Rejection of bone marrow grafts in irradiated mice is mediated by natural killer (NK) cells and is controlled by genes linked to the major histocompatibility complex (MHC). It has, however, not been possible to identify the genes or their products. An MHC class I (Dd) transgene introduced in C57BL donors prevented the rejection of their bone marrow by NK cells in irradiated allogeneic and F1 hybrid mice expressing the Dd gene. Conversely, H-2Dd transgenic C57BL recipients acquired the ability to reject bone marrow from C57BL donors but not from H-2Dd transgenic C57BL donors. These results provide formal evidence that NK cells are part of a system capable of rejecting cells because they lack normal genes of the host type, in contrast to T cells, which recognize cells that contain abnormal or novel sequences of non-host type.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Ohlen, C -- Kling, G -- Hoglund, P -- Hansson, M -- Scangos, G -- Bieberich, C -- Jay, G -- Karre, K -- 1 ROI CA 44882-01/CA/NCI NIH HHS/ -- 5 ROI CA-25250-06/CA/NCI NIH HHS/ -- New York, N.Y. -- Science. 1989 Nov 3;246(4930):666-8.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Tumor Biology, Karolinska Institute, Stockholm, Sweden.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/2814488" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; *Bone Marrow Transplantation ; *Genes, MHC Class I ; *Graft Rejection ; H-2 Antigens/*genetics ; Killer Cells, Natural/immunology ; Mice ; Mice, Inbred BALB C ; Mice, Inbred C57BL ; Mice, Transgenic ; Transplantation, Homologous
    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
    Publication Date: 1989-02-24
    Description: The complete amino acid sequence of amphiregulin, a bifunctional cell growth modulator, was determined. The truncated form contains 78 amino acids, whereas a larger form of amphiregulin contains six additional amino acids at the amino-terminal end. The amino-terminal half of amphiregulin is extremely hydrophilic and contains unusually high numbers of lysine, arginine, and asparagine residues. The carboxyl-terminal half of amphiregulin (residues 46 to 84) exhibits striking homology to the epidermal growth factor (EGF) family of proteins. Amphiregulin binds to the EGF receptor but not as well as EGF does. Amphiregulin fully supplants the requirement for EGF or transforming growth factor-alpha in murine keratinocyte growth, but it is a much weaker growth stimulator in other cell systems.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Shoyab, M -- Plowman, G D -- McDonald, V L -- Bradley, J G -- Todaro, G J -- New York, N.Y. -- Science. 1989 Feb 24;243(4894 Pt 1):1074-6.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Oncogen, Seattle, WA 98121.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/2466334" target="_blank"〉PubMed〈/a〉
    Keywords: Amino Acid Sequence ; Amphiregulin ; Animals ; Binding, Competitive ; Cell Division ; EGF Family of Proteins ; Epidermal Growth Factor/physiology ; Epidermis/cytology ; Glycoproteins/*physiology ; Growth Substances/*physiology ; Humans ; *Intercellular Signaling Peptides and Proteins ; Keratins/metabolism ; Mice ; Molecular Sequence Data ; Radioligand Assay ; Receptor, Epidermal Growth Factor/metabolism ; Sequence Homology, Nucleic Acid ; Transforming Growth Factors/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
    Publication Date: 1988-09-16
    Description: Hormone-sensitive lipase, a key enzyme in fatty acid mobilization, overall energy homeostasis, and possibly steroidogenesis, is acutely controlled through reversible phosphorylation by catecholamines and insulin. The 757-amino acid sequence predicted from a cloned rat adipocyte complementary DNA showed no homology with any other known lipase or protein. The activity-controlling phosphorylation site was localized to Ser563 in a markedly hydrophilic domain, and a lipid-binding consensus site was tentatively identified. One or several messenger RNA species (3.3, 3.5, or 3.9 kilobases) were expressed in adipose and steroidogenic tissues and heart and skeletal muscle. The human hormone-sensitive lipase gene mapped to chromosome 19 cent-q13.3.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Holm, C -- Kirchgessner, T G -- Svenson, K L -- Fredrikson, G -- Nilsson, S -- Miller, C G -- Shively, J E -- Heinzmann, C -- Sparkes, R S -- Mohandas, T -- New York, N.Y. -- Science. 1988 Sep 16;241(4872):1503-6.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Medical and Physiological Chemistry, University of Lund, Sweden.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/3420405" target="_blank"〉PubMed〈/a〉
    Keywords: Amino Acid Sequence ; Animals ; Base Sequence ; Chromosome Mapping ; *Chromosomes, Human, Pair 19 ; Cloning, Molecular ; DNA/genetics ; Gene Expression Regulation ; Humans ; Molecular Sequence Data ; Rats ; Sterol Esterase/*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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  • 8
    Publication Date: 1987-01-16
    Description: Epidermal regeneration following middermal injuries to skin requires both proliferation and migration of keratinocytes. Epidermal growth factor (EGF) stimulates the proliferation of keratinocytes in culture, and topical administration of EGF accelerates epidermal regeneration of partial thickness burns or split-thickness incisions in vivo. Transforming growth factor-alpha (TGF-alpha) and vaccinia growth factor (VGF) have substantial sequence homology with EGF, and all appear to bind to the same receptor protein. Whether TGF-alpha or VGF can affect epidermal wound healing in vivo is not known. The present studies show that topical administration of TGF-alpha or VGF in antibiotic cream to partial thickness burns (second degree) accelerated epidermal regeneration in comparison with untreated or vehicle-treated burns. Low levels of both TGF-alpha and VGF (0.1 microgram per milliliter) appeared to be more effective than EGF in stimulating epidermal regeneration. Regenerated epithelium from burns treated with TGF-alpha or VGF appeared normal histologically. This finding suggests that topical application of selected growth factors may be useful in accelerating healing of partial thickness injuries.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Schultz, G S -- White, M -- Mitchell, R -- Brown, G -- Lynch, J -- Twardzik, D R -- Todaro, G J -- EY05587/EY/NEI NIH HHS/ -- New York, N.Y. -- Science. 1987 Jan 16;235(4786):350-2.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/3492044" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Burns ; Dose-Response Relationship, Drug ; Epidermal Growth Factor/pharmacology ; Growth Substances/*pharmacology ; Peptides/*pharmacology ; Regeneration/drug effects ; Skin/cytology ; *Skin Physiological Phenomena ; Swine ; Transforming Growth Factors ; Vaccinia virus ; Wound Healing/*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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  • 9
    Publication Date: 1986-02-28
    Description: Differentiation of lymphoid precursor cells in a variety of species is induced by polypeptide hormones such as thymopoietin for T cells and bursin for B cells. In the present experiments, bursin isolated from the bursa of Fabricius of chicken was found to induce the phenotypic differentiation of mammalian and avian B precursor cells but not of T precursor cells in vitro. Similarly, bursin increased cyclic guanosine monophosphate in cells of the human B-cell line Daudi but not in cells of the human T-cell line CEM. These inducing properties of bursin are the reverse of the inducing properties of thymopoietin produced by the thymus and are appropriate to a physiological B-cell-inducing hormone. A tripeptide sequence (lysyl-histidyl-glycyl-amide) was determined for bursin and confirmed by synthesizing this proposed structure and demonstrating chemical identity of the natural and synthetic peptides. Similarity of biological action was indicated in induction assays by elevation of cyclic adenosine monophosphate and guanosine monophosphate in Daudi B cells but not in CEM T cells.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Audhya, T -- Kroon, D -- Heavner, G -- Viamontes, G -- Goldstein, G -- New York, N.Y. -- Science. 1986 Feb 28;231(4741):997-9.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/3484838" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; B-Lymphocytes/*physiology ; Bursa of Fabricius/*physiology ; Cell Line ; Chickens ; Chromatography, High Pressure Liquid ; Chromatography, Thin Layer ; Humans ; Mass Spectrometry ; Oligopeptides/*isolation & purification/pharmacology/physiology ; Rats ; T-Lymphocytes/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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  • 10
    Publication Date: 2011-08-19
    Description: The results of preliminary analyses of radio occultation data obtained by Voyager 2 as it passed Uranus are described. The occultations took place between 2-7 deg S latitude and yielded atmospheric temperature profiles between pressure levels of 10-900 mbar, an altitude range of 100 km. The mole fractions of hydrogen and helium in the tropopause were estimated, in conjunction with IR data, to about 0.85 and 0.10-0.20, respectively. Radio signal intensity data indicated the presence of a cloud deck of CH4 ice at a pressure level of 1300 mbar and a temperature of 81 K, implying a CH4 mole fraction of 0.02 at very low altitudes. The ionosphere extended upward, in two levels, to more than 10,000 km altitude. The ring system was different than the one around Saturn and possessed cylindrical substructures. The radio data also permitted mass density estimates for the five major moons, i.e., about 1.40 gr/cu cm, a value which rules out cometary origins.
    Keywords: LUNAR AND PLANETARY EXPLORATION
    Type: Science (ISSN 0036-8075); 233; 79-84
    Format: text
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