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  • 1
    Electronic Resource
    Electronic Resource
    Analysis of the age-related composition of human skin collagen and collagens synthesized by fibroblast culture (1994)
    Springer
    Archives of dermatological research 286 (1994), S. 391-395 
    Details
    ISSN: 1432-069X
    Keywords: Collagen metabolism ; Collagen donor aging ; Skin physiology
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Abstract Age-related differences in the composition and the post-translational modifications of human skin collagens were examined in the present study. The data were compared with results of collagen synthesis from in vivo-aged fibroblasts in culture. Skin extracts and newly synthesized collagen from fibroblast cultures derived from both old and young donor groups showed the same ratio of collagen III to collagen I. Furthermore, no difference was noted in the degree of prolyl and lysyl hydroxylation of collagen I and collagen III. Young and old fibroblasts synthesized a similar quantity of collagen in vitro. The data suggest that fibroblasts maintain a uniform level of collagen production, composition and modification independent of the age of the donor.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00371799
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    Paper (German National Licenses)
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  • 2
    Electronic Resource
    Electronic Resource
    Production and characterization of monoclonal antibodies to the mammalian sperm cytoskeleton (1990)
    New York, NY [u.a.] : Wiley-Blackwell
    Molecular Reproduction and Development 25 (1990), S. 384-392 
    Details
    ISSN: 1040-452X
    Keywords: Immunofluorescence ; Immunoblotting ; Spermatozoa ; Life and Medical Sciences ; Cell & Developmental Biology
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Biology
    Notes: The cytoskeleton exerts a direct effect on the function of sperm by influencing the distribution of subcellular organelles and plasma membrane molecules. We have prepared six monoclonal antibodies to Triton X-100-insoluble components of the bull sperm cytoskeleton. One of the antibodies reacts with a detachable portion of the bull sperm acrosome. The remainder include an antibody that recognizes the principal and end piece of the tail and another that is specific to the middle piece. Two of the antibodies yield dissimilar staining patterns of the neck region and the tail, and the final monoclonal antibody stains the subacrosomal region and a detachable acrosomal domain of bull sperm. The cross reactivities of the antibodies with hamster sperm and PtK2 cells are described, as is the recognition of bull sperm polypeptides on western blots. The results suggest that these antibodies will provide interesting insights concerning the role of the cytoskeleton in sperm development and function.
    Additional Material: 5 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/mrd.1080250412
    Library Location Call Number Volume/Issue/Year Availability
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    Paper (German National Licenses)
    Fulltext
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