title: Serum angiotensin-converting enzyme level is elevated in patients with human immunodeficiency virus infection.
abstract: BACKGROUND
  Serum angiotensin-converting enzyme (ACE) level is elevated in a number of disease states and medical conditions. Based on review of the medical literature, we postulated that serum ACE level elevation may occur during infection with the human immunodeficiency virus (HIV).
  
  
  METHODS
  In a prospective, controlled study, serum ACE levels of HIV-positive patients were compared with those of an HIV-negative control population.
  
  
  RESULTS
  Serum ACE levels were significantly elevated in patients with the acquired immunodeficiency syndrome (55.4 +/- 11.4 U/L) and in patients with an intermediate stage of HIV infection (57.2 +/- 25.3 U/L) when compared with levels in controls (31.9 +/- 14.0 U/L).
  
  
  CONCLUSIONS
  Elevated serum ACE levels occur in HIV infection and may be an important marker for this disease.
authors.affiliation: Department of Pulmonary/Critical Care Medicine, Fitzsimons Army Medical Center, Aurora, Colo. 80045.
authors.forename: D R
authors.initials: DR
authors.lastname: Ouellette
authors.forename: J W
authors.initials: JW
authors.lastname: Kelly
authors.forename: G T
authors.initials: GT
authors.lastname: Anders
mesh_terms: D000163:Acquired Immunodeficiency Syndrome / Q000201:enzymology; D000328:Adult; D015658:HIV Infections / Q000201:enzymology*; D006801:Humans; D007703:Peptidyl-Dipeptidase A / Q000097:blood*; D011446:Prospective Studies
chemical_list: D007703:Peptidyl-Dipeptidase A