Daily melatonin injections mimic the short day-induced increase in negative feedback effects of testosterone on gonadotropin secretion in hamsters.
D000818:Animals; D002369:Castration; D006224:Cricetinae; D005246:Feedback; D006065:Gonadotropins, Pituitary / Q000378:metabolism*; D008027:Light; D008297:Male; D008550:Melatonin / Q000494:pharmacology*; D008647:Mesocricetus; D010870:Pineal Gland / Q000187:drug effects; D013493:Suprachiasmatic Nucleus / Q000187:drug effects; D013737:Testis / Q000187:drug effects; D013739:Testosterone / Q000494:pharmacology*
D006065:Gonadotropins, Pituitary; D013739:Testosterone; D008550:Melatonin