title: Age-related alterations of isolated rat leydig cell function: gonadotropin receptors, adenosine 3',5'-monophosphate response, and testosterone secretion.
mesh_terms: D000375:Aging; D000818:Animals; D006063:Chorionic Gonadotropin / Q000378:metabolism / Q000494:pharmacology; D000242:Cyclic AMP / Q000378:metabolism*; D007985:Leydig Cells / Q000187:drug effects / Q000378:metabolism*; D008297:Male; D009929:Organ Size; D051381:Rats; D011956:Receptors, Cell Surface / Q000378:metabolism*; D013737:Testis / Q000254:growth & development* / Q000378:metabolism; D013739:Testosterone / Q000378:metabolism*
chemical_list: D006063:Chorionic Gonadotropin; D011956:Receptors, Cell Surface; D013739:Testosterone; D000242:Cyclic AMP