title: Circulating immune complexes containing chlamydial lipopolysaccharide in acute myocardial infarction.
abstract: The presence of circulating immune complexes (IC) was studied using two detection methods specific for chlamydial lipopolysaccharide (LPS) in paired serum samples of 44 patients (30 men and 14 women) with acute myocardial infarction (AMI). Forty-four random controls were individually matched for locality, age and sex with the AMI patients. As specificity controls for the IC assays single serum samples from 29 patients with diseases characterized by the presence of circulating IC were used. Fifty-seven per cent of AMI patients, 12% of their random controls and 10% of the patient controls were shown to have chlamydial LPS-specific immune complexes in their sera (P less than 0.0001, AMI versus random and patient controls). This finding provides further evidence of the possible association of chronic chlamydial infection with AMI.
authors.affiliation: National Public Health Institute, Helsinki, Finland.
authors.forename: M
authors.initials: M
authors.lastname: Leinonen
authors.forename: E
authors.initials: E
authors.lastname: Linnanmäki
authors.forename: K
authors.initials: K
authors.lastname: Mattila
authors.forename: M S
authors.initials: MS
authors.lastname: Nieminen
authors.forename: V
authors.initials: V
authors.lastname: Valtonen
authors.forename: M
authors.initials: M
authors.lastname: Leirisalo-Repo
authors.forename: P
authors.initials: P
authors.lastname: Saikku
mesh_terms: D000328:Adult; D000907:Antibodies, Bacterial / Q000097:blood; D000936:Antigen-Antibody Complex / Q000097:blood*; D002689:Chlamydia / Q000276:immunology*; D002690:Chlamydia Infections / Q000150:complications / Q000276:immunology; D005260:Female; D006801:Humans; D008070:Lipopolysaccharides / Q000276:immunology*; D008297:Male; D008875:Middle Aged; D009203:Myocardial Infarction / Q000150:complications / Q000276:immunology*
chemical_list: D000907:Antibodies, Bacterial; D000936:Antigen-Antibody Complex; D008070:Lipopolysaccharides