title: Oestrogens and spermatogenesis.
abstract: The role of oestrogens in male reproductive tract physiology has for a long time been a subject of debate. The testis produces significant amounts of oestrogenic hormones, via aromatase, and oestrogen receptors (ERs)alpha (ESR1) and ERbeta (ESR2) are selectively expressed in cells of the testis as well as the epididymal epithelium, depending upon species. This review summarizes the current knowledge concerning the presence and activity of aromatase and ERs in testis and sperm and the potential roles that oestrogens may have in mammalian spermatogenesis. Data show that physiology of the male gonad is in part under the control of a balance of androgens and oestrogens, with aromatase serving as a modulator.
authors.affiliation: Department of Biochemistry, University of Caen, EA 2608, USC 2006 INRA, IFR 146, 14032 Caen, France.
authors.forename: Serge
authors.initials: S
authors.lastname: Carreau
authors.forename: Rex A
authors.initials: RA
authors.lastname: Hess
mesh_terms: D000818:Animals; D004967:Estrogens / Q000502:physiology*; D006801:Humans; D008297:Male; D013091:Spermatogenesis / Q000502:physiology*; D013094:Spermatozoa / Q000201:enzymology / Q000502:physiology*; D013737:Testis / Q000502:physiology*
chemical_list: D004967:Estrogens
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