Titlebook: Hormonal Regulation of Spermatogenesis; Frank S. French,Vidar Hansson,Shihadeh N. Nayfeh Book 1975 Plenum Press, New York 1975 endocrinolo

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Synthesis of Estradiol -17β by Sertoli Cells in Culture: Stimulation by FSH and Dibutyryl Cyclic AMPlass of steroids has been somewhat controversial. The Sertoli cell was initially implicated on the basis of early observations of feminization of dogs with Sertoli cell tumours (1); this was subsequently substantiated by the isolation of biologically active estrogenic material from Sertoli cell tumo

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Comparison of Steroid Metabolism in Testicular Compartments of Human and Rat Testesve been interested in the intratesticular localization of steroid sulfatase. Steroid sulfates have been observed to be present in high concentrations in human testicular tissue. Ruokonen .. . (1) determined the amount of various free steroids and steroid sulfates in testes obtained at the time of or

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Biosynthesis and Metabolism of Testosterone in Isolated Germ Cells of the Rat and the Ram and in theown that the tubule can produce testosterone .. from different steroids such as pregnenolone, progesterone or dehydroepiandrosterone (1,2,3); also metabolize testosterone into 5α-reduced compounds such as 5α-dihydrotestosterone (DHT) and androstanediols (DIOLS) (4,5,6).

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Perfusion of the Male Rat Reproductive Tract: A Model for the Study of Androgen Secretion and Actionms and boars (1–3). However, these methods require considerable technical expertise to cannulate the internal spermatic artery and to establish adequate perfusion without a long period of ischemia. Although a method for short term perfusion of rat testes has been reported (4), a critical evaluation

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The Blood — Testis Barrier and Steroids the possible production of steroids by the tubules or in the local action on the tubules of steroids produced in the interstitial tissue. It is now well established (see 1 for review) that many quite small molecules do not readily pass through the walls of the seminiferous tubules, while for other