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  • 1
    Electronic Resource
    Electronic Resource
    Amsterdam : Elsevier
    Spectrochimica Acta Part A: Molecular and Biomolecular Spectroscopy Section 50 (1994), S. 1871-1878 
    ISSN: 0584-8539
    Keywords: Keywords: FT-Raman ; infrared ; normal coordinate analysis.
    Source: Elsevier Journal Backfiles on ScienceDirect 1907 - 2002
    Topics: Chemistry and Pharmacology , Physics
    Type of Medium: Electronic Resource
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  • 2
    ISSN: 1432-1440
    Keywords: Acquired immunodeficiency syndrome ; Human immundeficiency virus ; Apoptosis ; Fas antigen (CD95) ; p24 antigen ; Immune complex dissociation
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Abstract Active T cell suicide (apoptosis) is supposed to be involved in the CD4+ T cell depletion in the course of HIV infection. We investigated the expression of the apoptosis-related antigen Fas on CD4+ T cells from 25 HIV-positive individuals (CDC I-III) and 8 HIV-negative controls by two-colour flowcytometry. In addition, we evaluated: total CD4 count, HIV p24 antigen concentration in serum after immune complex dissociation, and clinical course of infection in HIV-positive individuals. We found a significant increase in mean Fas expression on CD4+ T cells from HIV-positive individuals compared to HIV-negative individuals (85.84±14.92% vs. 64.28±7.59%, P〈0.001). Within the HIV-positive group the increase in Fas expression was correlated with the decline in CD4 count (r=−0.76, P〈0.001), p24 antigen concentration in serum after immune complex dissociation (r=0.67, P〈0.001), and CDC stage (r=0.73, P〈0.001). The upregulation of Fas antigen on CD4 cells is associated with CD4 depletion and other virological and clinical marker of disease progression in HIV infection.
    Type of Medium: Electronic Resource
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  • 3
    Electronic Resource
    Electronic Resource
    Weinheim : Wiley-Blackwell
    Zeitschrift für anorganische Chemie 620 (1994), S. 1041-1045 
    ISSN: 0044-2313
    Keywords: Rubidium chalcogenidostannates(IV) ; solvatothermal synthesis ; crystal structures ; Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: Preparation and Crystal Structure of Rb2Sn3S7 · 2 H2O and Rb4Sn2Se6Rb2Sn3S7 · 2 H2O has been prepared by hydrothermal reaction of SnS2 and Rb2CO3 in an with H2S saturated aqueous solution at 190°C. The crystal lattice contains chain anions ∞1[Sn3S72-] which display both SnS4 tetrahedra and SnS6 octahedra. Methanolothermal reaction of SnCl2 with Se and Rb2CO3 at 145°C leads to the formation of Rb4Sn2Se6 which contains edge-bridged bitetrahedral [Sn2Se6]4- anions.
    Notes: Rb2Sn3S7 · 2 H2O wurde durch hydrothermale Reaktion von SnS2 und Rb2CO3 in einer mit H2S gesättigten wäßrigen Lösung bei 190°C synthetisiert. Das Kristallgitter enthält Kettenanionen ∞1[Sn3S72-], die sowohl SnS4-Tetraeder als auch SnS6-Oktaeder aufweisen. Methanolothermale Reaktion von SnCl2 mit Se und Rb2CO3 bei 145°C führt zur Bildung der Phase Rb4Sn2Se6, die isolierte kantenverknüpfte bitetraedrische Anionen [Sn2Se6]4- enthält.
    Additional Material: 3 Ill.
    Type of Medium: Electronic Resource
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