title: Effects of age and hypophysectomy on responsiveness of rat Leydig cells to hCG.
mesh_terms: D000375:Aging; D015113:Androstane-3,17-diol / Q000378:metabolism; D000818:Animals; D000831:Animals, Newborn / Q000502:physiology; D006063:Chorionic Gonadotropin / Q000494:pharmacology*; D007016:Hypophysectomy; D066298:In Vitro Techniques; D007985:Leydig Cells / Q000187:drug effects* / Q000502:physiology; D008297:Male; D051381:Rats; D013739:Testosterone / Q000378:metabolism
chemical_list: D006063:Chorionic Gonadotropin; D015113:Androstane-3,17-diol; D013739:Testosterone