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  • 1
    Electronic Resource
    Electronic Resource
    The effect of an LH pulse on 3H-thymidine incorporation into cultured ovaries of metestrous rats (1984)
    Springer
    Cell & tissue research 238 (1984), S. 159-163 
    Details
    ISSN: 1432-0878
    Keywords: Ovary ; Rat ; Cell division ; Luteinizing hormone
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Medicine
    Notes: Summary The effect of an LH pulse on the rate at which 3H-thymidine is incorporated into cultured ovaries of metestrous rats was studied. In comparison to ovaries cultured with tonic LH, an LH pulse (1) “rescued” follicles from atresia, (2) induced thecal cell proliferation, and (3) increased the rate at which granulosa cells enter mitosis. It is concluded that LH pulses increase follicular growth by first triggering thecal cell proliferation and then inducing mitotic divisions within the granulosa cells of both atretic and non-atretic follicles.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00215157
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    Paper (German National Licenses)
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  • 2
    Electronic Resource
    Electronic Resource
    Capacity of fertilized ova from mature and middle-aged rats to undergo preimplantation development in vitro (1983)
    Springer
    Cell & tissue research 229 (1983), S. 451-456 
    Details
    ISSN: 1432-0878
    Keywords: Preimplantation development ; Rat ; Age
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Medicine
    Notes: Summary The ability of ova collected from mated middle-aged rats (9–10 months of age) to undergo preimplantation development in vitro was compared to that of younger controls (3–4 months of age). The majority of ova from young rats underwent at least one cleavage division for every 24 h of the 96 h culture period. Seventy-two percent reached the morula/blastocyst stage at the termination of the culture. Aged ova had a reduced capacity to undergo preimplantation development in vitro with the number of fragmented and/or degenerated ova increasing after each day in culture. At the end of the culture period, 81.6% of the ova had degenerated. It is concluded that middle-aged rats ovulate defective ova and that these defective ova account, in part, for the preimplantation losses that characterize middle-aged rats.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00214986
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    Paper (German National Licenses)
    Fulltext
  • 3
    Electronic Resource
    Electronic Resource
    Etude sur le potentiel d'oxydo-réduction. Limite de croissance des bactéries anaérobies (1946)
    New York, NY : Wiley-Blackwell
    Helvetica Chimica Acta 29 (1946), S. 1267-1278 
    Details
    ISSN: 0018-019X
    Keywords: Chemistry ; Organic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Notes: 1° C1. Saccharobutyricum et C1. Sporogenes cultivés en présence de colorants indicateurs de potentiel d'oxydo-réduction, en milieu solide oú l'oxygéne diffuse, peuvent croître á un potentiel de l'ordre de E0′= + 0,123 v à pH7.
    Additional Material: 4 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/hlca.19460290541
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    Paper (German National Licenses)
    Fulltext
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