title: Seasonal variation of androgen interconversion in testicular tissue of Rana temporaria in vitro.
abstract: Testicular steroid metabolism of winter and spring frogs, Rana temporaria, were studied by in vitro incubation with radioactively labelled dehydroepiandrosterone and androst-4-ene-3,17-dione. Marked seasonal differences were observed which are in line with the findings of others.
mesh_terms: D000728:Androgens / Q000378:metabolism*; D000735:Androstenedione / Q000378:metabolism*; D000818:Animals; D001001:Anura; D003687:Dehydroepiandrosterone / Q000378:metabolism*; D008297:Male; D009243:NAD / Q000494:pharmacology; D011896:Rana temporaria; D012621:Seasons; D013737:Testis / Q000378:metabolism*; D013739:Testosterone / Q000378:metabolism
chemical_list: D000728:Androgens; D009243:NAD; D013739:Testosterone; D000735:Androstenedione; D003687:Dehydroepiandrosterone