title: Polyamines and other accessory sex gland secretions in human seminal plasma 8 years after vasectomy.
abstract: In 56 males, vasectomized 8 years previously, and in 56 age-matched non-vasectomized controls, a number of secretory products of prostatic, seminal vesicular and epididymal/testicular origin were used to monitor post-operative changes in accessory sex gland function. Significant reductions were observed in seminal plasma volume (3.0 vs 4.9 ml, P less than 0.01), and the total ejaculate contents of zinc (5.1 vs 9.7 mumol, P less than 0.01), magnesium (10.6 vs 26.5 mumol, P less than 0.01), PAP (371 vs 1260 IU, P less than 0.005) and citric acid (76.7 vs 127.9 mumol, P less than 0.05), indicating a major impact on secretions of prostatic origin. Unaltered PGE-1 (54.3 vs 53.2 micrograms, P less than 0.95) and fructose (3.9 vs 4.5 mumol, P greater than 0.1) indicated no effects on the secretory function of the seminal vesicles. A marked reduction was demonstrated in the ejaculatory contents of the polyamines, spermidine (366 vs 650 nmol, P less than 0.005) and spermine (5435 vs 11 804 nmol, P less than 0.05) but not their acknowledged precursor, putrescine, which is also of prostatic origin.
authors.affiliation: Department of Urology, Herlev Hospital, University of Copenhagen, Denmark.
authors.forename: H
authors.initials: H
authors.lastname: Jakobsen
authors.forename: H
authors.initials: H
authors.lastname: Rui
authors.forename: Y
authors.initials: Y
authors.lastname: Thomassen
authors.forename: T
authors.initials: T
authors.lastname: Hald
authors.forename: K
authors.initials: K
authors.lastname: Purvis
mesh_terms: D000135:Acid Phosphatase / Q000032:analysis; D000328:Adult; D000368:Aged; D002951:Citrates / Q000032:analysis; D019343:Citric Acid; D003430:Cross-Sectional Studies; D005837:Genitalia, Male / Q000378:metabolism*; D006801:Humans; D008274:Magnesium / Q000032:analysis; D008297:Male; D008875:Middle Aged; D011184:Postoperative Period; D011467:Prostate / Q000378:metabolism; D011700:Putrescine / Q000032:analysis; D012661:Semen / Q000032:analysis*; D013095:Spermidine / Q000032:analysis / Q000378:metabolism*; D013096:Spermine / Q000032:analysis / Q000378:metabolism*; D014659:Vasectomy; D015032:Zinc / Q000032:analysis
chemical_list: D002951:Citrates; D019343:Citric Acid; D013096:Spermine; D000135:Acid Phosphatase; D008274:Magnesium; D015032:Zinc; D013095:Spermidine; D011700:Putrescine