title: Effects of surgery on testosterone secretion in male patients with pituitary adenomas.
abstract: The purpose of this study was to assess the effect of surgery on gonadal function in 42 male patients with pituitary adenomas Gonadal functions were evaluated by measuring total serum testosterone concentrations pre- and postoperatively. The subjects of the study were 20 patients with GH secreting adenoma, 7 patients with prolactinoma and 15 patients with nonfunctioning (NF) adenoma. Their ages ranged from 18 to 60 years (mean +/- SEM, 41 +/- 1.9). The serum testosterone concentration was low at less than 300 ng/dl preoperatively in 14 of 20 patients (70%) with GH producing adenoma, 6 of 7 patients (86%) with prolactinoma, and 7 of 15 patients (47%) with NF adenoma. Postoperatively, the total serum testosterone concentration was normalized in 9 of 14 patients (64%) with GH producing adenoma, one of 6 patients (17%) with prolactinoma, and 5 of 7 patients (71%) with NF adenoma. The normalization of serum GH and prolactin concentrations is indispensable for the restoration of gonadal function. It is very important to preserve the normal preoperative gonadotropin secretion by means of gentle surgery.
authors.affiliation: Department of Neurosurgery, Hiroshima University, School of Medicine, Japan.
authors.forename: A
authors.initials: A
authors.lastname: Tominaga
authors.forename: T
authors.initials: T
authors.lastname: Uozumi
authors.forename: K
authors.initials: K
authors.lastname: Arita
authors.forename: K
authors.initials: K
authors.lastname: Kurisu
authors.forename: T
authors.initials: T
authors.lastname: Yano
authors.forename: T
authors.initials: T
authors.lastname: Hirohata
authors.forename: K
authors.initials: K
authors.lastname: Eguchi
authors.forename: K
authors.initials: K
authors.lastname: Iida
authors.forename: H
authors.initials: H
authors.lastname: Kawamoto
mesh_terms: D000236:Adenoma / Q000378:metabolism / Q000503:physiopathology / Q000601:surgery*; D000293:Adolescent; D000328:Adult; D015331:Cohort Studies; D005640:Follicle Stimulating Hormone / Q000097:blood / Q000378:metabolism; D019382:Human Growth Hormone / Q000097:blood* / Q000378:metabolism; D006801:Humans; D007986:Luteinizing Hormone / Q000097:blood / Q000378:metabolism; D008297:Male; D008875:Middle Aged; D010911:Pituitary Neoplasms / Q000378:metabolism / Q000503:physiopathology / Q000601:surgery*; D011388:Prolactin / Q000097:blood / Q000378:metabolism; D015175:Prolactinoma / Q000097:blood / Q000503:physiopathology; D011446:Prospective Studies; D013739:Testosterone / Q000097:blood* / Q000378:metabolism; D016896:Treatment Outcome
chemical_list: D019382:Human Growth Hormone; D013739:Testosterone; D011388:Prolactin; D007986:Luteinizing Hormone; D005640:Follicle Stimulating Hormone