title: Effects of age on testicular function.
abstract: Although frequency of sexual activity declines dramatically with age, most investigators have been able to define rather small physiologic function (hormonal and spermatogenic) changes with advancing age. Despite the development of subtle intrinsic age-related defects at all levels of the hypothalamic-pituitary-testicular axis, reproductive capacity is maintained in healthy elderly men.
authors.affiliation: Center for Aging and Adult Development, New York Medical College, Valhalla.
authors.forename: P D
authors.initials: PD
authors.lastname: Tsitouras
mesh_terms: D000328:Adult; D000368:Aged; D000369:Aged, 80 and over; D000375:Aging / Q000502:physiology*; D000818:Animals; D012739:Gonadal Steroid Hormones / Q000502:physiology; D006801:Humans; D007031:Hypothalamus / Q000502:physiology; D008297:Male; D008875:Middle Aged; D010902:Pituitary Gland / Q000502:physiology; D012723:Sex; D012725:Sexual Behavior / Q000502:physiology; D013091:Spermatogenesis; D013737:Testis / Q000502:physiology*; D013739:Testosterone / Q000502:physiology
chemical_list: D012739:Gonadal Steroid Hormones; D013739:Testosterone