Chlamydial Heat‐Shock Protein–60 Antibody and Correlation withChlamydia pneumoniaein Atherosclerotic Plaques
Author(s) -
I. W. Fong,
Brian Chiu,
Esther Viira,
William Tucker,
Heidi Wood,
Rosanna W. Peeling
Publication year - 2002
Publication title -
the journal of infectious diseases
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 2.69
H-Index - 252
eISSN - 1537-6613
pISSN - 0022-1899
DOI - 10.1086/344730
Subject(s) - chlamydia , antigen , chlamydophila pneumoniae , chlamydiaceae , antibody , immune system , heat shock protein , chlamydiales , microbiology and biotechnology , immunology , biology , biochemistry , gene
A study was performed to determine whether serum antibody to Chlamydial heat-shock protein-60 (CHSP-60) and C-reactive protein (CRP) were associated with the presence of Chlamydia pneumoniae in atheromatous plaques in 75 patients. The mean (+/-SD) ELISA optical density (OD) of anti-CHSP-60 was 0.19+/-0.15 in 54 patients with detectable C. pneumoniae antigen, versus an OD of 0.11+/-0.08 in 21 patients without detectable C. pneumoniae I antigen (P=.008). Higher anti-CHSP-60 at an OD > or =0.12 was present in 38 (70.4%) of patients with detectable C. pneumoniae in atheromas, compared with 5 (23.8%) of patients without C. pneumoniae antigen (P<.001; 2-tailed test). The mean CRP concentration was 7.4+/-10.3 mg/L in patients with detectable C. pneumoniae antigen, versus 5.7+/-6.1 mg/L in those without (P=.556). Immune response to CHSP-60 may play a role in atherogenesis, but CRP serum levels does not appear to be related to C. pneumoniae infection.
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