title: Testosterone production in the aging male: where does the slowdown occur?
authors.forename: Matthew P
authors.initials: MP
authors.lastname: Hardy
authors.forename: Peter N
authors.initials: PN
authors.lastname: Schlegel
mesh_terms: D000262:Adenylyl Cyclases / Q000378:metabolism; D000375:Aging / Q000378:metabolism*; D000818:Animals; D003994:Bucladesine / Q000494:pharmacology; D019204:GTP-Binding Proteins / Q000378:metabolism; D006801:Humans; D007985:Leydig Cells / Q000187:drug effects / Q000378:metabolism; D007986:Luteinizing Hormone / Q000378:metabolism; D008297:Male; D011974:Receptors, LH / Q000378:metabolism; D013739:Testosterone / Q000096:biosynthesis*
chemical_list: D011974:Receptors, LH; D013739:Testosterone; D003994:Bucladesine; D007986:Luteinizing Hormone; D019204:GTP-Binding Proteins; D000262:Adenylyl Cyclases