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Association of periodontitis with persistent, pro‐atherogenic antibody responses
Author(s) -
Buhlin Kåre,
Holmer Jacob,
Gustafsson Anders,
Hörkkö Sohvi,
Pockley Alan Graham,
Johansson Anders,
Paju Susanna,
Klinge Björn,
Pussinen Pirkko J.
Publication year - 2015
Publication title -
journal of clinical periodontology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 3.456
H-Index - 151
eISSN - 1600-051X
pISSN - 0303-6979
DOI - 10.1111/jcpe.12456
Subject(s) - antibody , periodontitis , immunology , hsp60 , porphyromonas gingivalis , aggregatibacter actinomycetemcomitans , epitope , antigen , medicine , microbiology and biotechnology , biology , heat shock protein , hsp70 , biochemistry , gene
Aim To study antibody responses associated with molecular mimicry in periodontitis. Material & Methods Fifty‐four periodontitis cases (mean age 54.0 years) and 44 controls (53.6 years) were examined, after which cases received periodontal treatment. Established immunoassays were used to analyse levels of antibodies against two pathogens, Aggregatibacter actinomycetemcomitans (Aa) and Porphyromonas gingivalis (Pg), heat shock proteins (Hsp), Hsp60, Hsp65, and Hsp70, and epitopes of oxidized low‐density lipoprotein (ox LDL ) (CuOx‐ LDL and MDA ‐ LDL ) in plasma samples that were collected at baseline and after 3 ( n = 48) and 6 ( n = 30) months. Results When age, sex, smoking habit, and the number of teeth were considered in multivariate logistic regressions, Aa and Pg IgG, Hsp65‐IgA, CuOx‐ LDL ‐IgG and ‐IgM, and MDA ‐ LDL ‐IgG antibody levels were associated with periodontitis, whereas Hsp60‐IgG2 antibody levels were inversely associated. The Aa antibody levels significantly correlated with the levels of IgA antibodies to Hsp65 and Hsp70, and both Ox LDL IgA antibody levels. The levels of antibodies to Pg correlated with IgG antibodies to Hsp60, Hsp70, and both ox LDL antibody epitopes. None of the antibody levels changed significantly after treatment. Conclusions Periodontitis is associated with persistently high levels of circulating antibodies that are reactive with pathogen‐ and host‐derived antigens.