title: Demonstration of direct effect of serotonin on rat Leydig cells.
mesh_terms: D000818:Animals; D007016:Hypophysectomy; D007985:Leydig Cells / Q000187:drug effects* / Q000378:metabolism; D008297:Male; D009929:Organ Size / Q000187:drug effects; D011284:Pregnenolone / Q000378:metabolism; D051381:Rats; D012701:Serotonin / Q000494:pharmacology*; D013739:Testosterone / Q000096:biosynthesis* / Q000097:blood
chemical_list: D012701:Serotonin; D013739:Testosterone; D011284:Pregnenolone