title: Testosterone and erectile function, nocturnal penile tumescence and rigidity, and erectile response to visual erotic stimuli in hypogonadal and eugonadal men.
abstract: Further evidence that nocturnal erections are androgen-dependent and erectile responses to visual erotic stimuli are androgen-independent is presented from six men with secondary hypogonadism and six eugonadal controls. Erections during sleep were substantially less in the hypogonadal men, in terms of both tumescence and rigidity. In response to visual erotic stimuli, the percentage increase in circumference over baseline and the increase in rigidity were similar for the two groups.
authors.affiliation: Department of Endocrinology, Modena, Italy.
authors.forename: C
authors.initials: C
authors.lastname: Carani
authors.forename: J
authors.initials: J
authors.lastname: Bancroft
authors.forename: A
authors.initials: A
authors.lastname: Granata
authors.forename: G
authors.initials: G
authors.lastname: Del Rio
authors.forename: P
authors.initials: P
authors.lastname: Marrama
mesh_terms: D000328:Adult; D002940:Circadian Rhythm / Q000502:physiology*; D005640:Follicle Stimulating Hormone / Q000097:blood; D007987:Gonadotropin-Releasing Hormone; D006801:Humans; D007006:Hypogonadism / Q000503:physiopathology*; D007989:Libido / Q000502:physiology*; D007986:Luteinizing Hormone / Q000097:blood; D008297:Male; D008875:Middle Aged; D010410:Penile Erection / Q000502:physiology*; D011388:Prolactin / Q000097:blood; D012894:Sleep Stages / Q000502:physiology*; D013739:Testosterone / Q000097:blood*
chemical_list: D007987:Gonadotropin-Releasing Hormone; D013739:Testosterone; D011388:Prolactin; D007986:Luteinizing Hormone; D005640:Follicle Stimulating Hormone