Structural analysis of purified platelet-activating factor by lipases.
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Animals↗
Biomedical subjects
M Tence
Publications and source records attributed to M Tence.
[Metabolism of testosterone in rat Sertoli cells].
Aspermatogenic seminiferous tubules were incubated in presence of labelled testosterone. This steroid is converted into androstenedione and 5 alpha-dihydro-testosterone. This finding favours the hypothesis which gives the Sertoli cell an important role in germ cell maturation.
3-Oxo-5-alpha-Steroid 4-Dehydrogenase↗
Biosynthesis and metabolism of testosterone in isolated germ cells of the ray and the ram and in the Sertoli cells of the rat.
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Animals↗
[Effect of oxygen on progesterone metabolism in the rat testis].
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Air↗
Structural analogs of platelet-activating factor (PAF-acether).
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Animals↗
[Testosterone metabolism in isolated cells of rat and ram seminiferous tubules].
Aspermatogenic seminiferous tubules were obtained from adult Wistar rats treated with Busulfan at the 20th day of foetel life. The isolated tubules converted 14C testosterone (T) into androstenedione (delta4), 3,5%) 5 alpha-dihydrotestosterone (DHT), (1%) ANd 5 alpha-androstane-3 beta, 17 beta-diol at unit gravity and incubated with 14C-T. Only delta was produced (2%). Using a similar technique the same result was obtained when pure preparation of round spermatids and primary spermatocytes from ram testis were incubated with 14C-T. From these experiments, we conclude that 5 alpha-reductase activity is present only in Sertoli cells.
Animals↗