title: Gene-polymorphisms of angiotensin converting enzyme and endothelial nitric oxide synthase in patients with erectile dysfunction.
abstract: OBJECTIVE
  Regulation of the penile smooth muscle tone and contractility is closely related to the activity of vasoactive substances, angiotensin II or nitric oxide. We investigated the relationship between gene polymorphism in the angiotensin converting enzyme (ACE) or endothelial nitric oxide synthase (ecNOS) and development of erectile dysfunction.
  
  
  METHODS
  In 84 subjects with organic erectile dysfunction and 63 control subjects, gene polymorphisms in the ACE and ecNOS were determined by the polymerase chain reaction (PCR).
  
  
  RESULTS
  The DD genotype of ACE was significantly (P < 0.01) more frequent in subjects with organic erectile dysfunction (54%) than in control subjects (24%). There was no significant difference in the distribution of the genotypes of ecNOS.
  
  
  CONCLUSIONS
  The deletion polymorphism in the ACE gene, the DD genotype, as a marker of general vascular disease, may be seen more frequently in men with a diagnosis of vasculogenic erectile dysfunction.
authors.affiliation: Department of Urology, Chonbuk National University Medical School, Chonju, Korea.
authors.forename: J K
authors.initials: JK
authors.lastname: Park
authors.forename: W
authors.initials: W
authors.lastname: Kim
authors.forename: S W
authors.initials: SW
authors.lastname: Kim
authors.forename: G Y
authors.initials: GY
authors.lastname: Koh
authors.forename: S K
authors.initials: SK
authors.lastname: Park
mesh_terms: D000328:Adult; D000368:Aged; D000483:Alleles; D007172:Erectile Dysfunction / Q000201:enzymology*; D005838:Genotype; D006801:Humans; D008297:Male; D008875:Middle Aged; D019001:Nitric Oxide Synthase / Q000235:genetics*; D052250:Nitric Oxide Synthase Type III; D007703:Peptidyl-Dipeptidase A / Q000235:genetics*; D016133:Polymerase Chain Reaction; D011110:Polymorphism, Genetic
chemical_list: C496314:NOS3 protein, human; D019001:Nitric Oxide Synthase; D052250:Nitric Oxide Synthase Type III; D007703:Peptidyl-Dipeptidase A