title: Helicobacter pylori seropositivity is not associated with inflammatory parameters, lipid concentrations and degree of coronary artery disease.
abstract: OBJECTIVE
  To determine the prevalence of chronic infection with Helicobacter pylori (HP) in patients with established coronary artery disease (CAD) and in healthy controls. Furthermore, to investigate whether HP infection is associated with inflammatory parameters, lipid concentrations and degree and progression of CAD.
  
  
  METHODS
  A case-control study combined with a prospective angiographic study.
  
  
  METHODS
  Stockholm Metropolitan Area, Sweden.
  
  
  METHODS
  A material consisting of 92 young men aged 40.9 +/- 3.2 (mean +/- SD) years, with previous myocardial infarction and documented coronary atherosclerosis, and 95 healthy sex-matched controls, aged 43.2 +/- 3.0 (mean +/- SD) years, with similar socio-economic status and ethnic background was analysed for the prevalence of HP seropositivity, plasma concentrations of the inflammatory parameters fibrinogen, tumour necrosis factor alpha and orosomucoid, and serum concentrations of lipids. The impact of HP seropositivity on degree and progression of CAD, as assessed by quantitative coronary angiography, was also determined.
  
  
  RESULTS
  The study population of mainly Scandinavian origin had a low prevalence of HP seropositivity in comparison with previously published European populations. No significant increase in HP seropositivity was found in patients compared with controls (42.2 vs. 32.6%). Furthermore, HP infection was not associated with increased levels of inflammatory parameters, lipid concentrations or with degree of angiographically determined CAD at baseline, or progression of CAD and clinical events over 5 years.
  
  
  CONCLUSIONS
  HP infection is not associated with inflammatory parameters and lipid concentrations and could not be confirmed as a risk factor for CAD.
authors.affiliation: Department of Medicine and King Gustaf V Research Institute, Karolinska Hospital, Stockholm, Sweden. jur@inst.med.ks.se
authors.forename: J
authors.initials: J
authors.lastname: Regnström
authors.forename: S
authors.initials: S
authors.lastname: Jovinge
authors.forename: P
authors.initials: P
authors.lastname: Båvenholm
authors.forename: C G
authors.initials: CG
authors.lastname: Ericsson
authors.forename: U
authors.initials: U
authors.lastname: De Faire
authors.forename: A
authors.initials: A
authors.lastname: Hamsten
authors.forename: M L
authors.initials: ML
authors.lastname: Hellenius
authors.forename: J
authors.initials: J
authors.lastname: Nilsson
authors.forename: P
authors.initials: P
authors.lastname: Tornvall
mesh_terms: D000328:Adult; D016022:Case-Control Studies; D002908:Chronic Disease; D017023:Coronary Angiography; D003324:Coronary Artery Disease / Q000097:blood / Q000150:complications* / Q000000981:diagnostic imaging / Q000276:immunology / Q000503:physiopathology*; D018450:Disease Progression; D016481:Helicobacter Infections / Q000097:blood / Q000150:complications* / Q000276:immunology / Q000503:physiopathology*; D016480:Helicobacter pylori; D006801:Humans; D008297:Male; D008875:Middle Aged; D015995:Prevalence; D011446:Prospective Studies; D012720:Severity of Illness Index