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Low levels of IgM antibodies against phosphorylcholine predict development of acute myocardial infarction in a population-based cohort from northern Sweden.
Umeå University, Faculty of Medicine, Department of Public Health and Clinical Medicine, Nutritional Research.ORCID iD: 0000-0001-9581-3845
Umeå University, Faculty of Medicine, Department of Public Health and Clinical Medicine, Medicine.
Umeå University, Faculty of Medicine, Department of Public Health and Clinical Medicine, Medicine.
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2009 (English)In: European Journal of Cardiovascular Prevention & Rehabilitation, ISSN 1741-8267, E-ISSN 1741-8275, Vol. 16, no 3, 382-386 p.Article in journal (Refereed) Published
Abstract [en]

OBJECTIVE: Phosphorylcholine (PC) is one important epitope on oxidized low-density lipoprotein that may play an important role by contributing to the atherogenicity of oxidized low-density lipoprotein. IgM antibodies against PC (anti-PC) are present ubiquitously in the population as natural antibodies. We here determine the association between anti-PC and incidence of myocardial infarction (MI). METHODS: We studied 462 incident cases of first events of MI and 888 age-matched and sex-matched controls identified through 13 years of follow-up (1987-1999) of participants in a population-based study from northern Sweden. Relative risks (RRs) with 95% confidence intervals (CIs) of incident MI with adjustments for age, sex, geographical region, hypertension, diabetes, BMI, smoking habits, s-cholesterol and high-sensitivity C-reactive protein were determined. Anti-PC levels were measured by enzyme-linked immunoassay. RESULTS: Low anti-PC values were associated with increased risk of MI. Significant associations were found for values below 26.8 U/ml, corresponding to the lowest 25th percentile, and the highest association was seen below 16.9 U/ml. These results remained almost the same after adjustment for confounding factors (RR crude: 1.56, CI: 1.07-2.28 and RR adjusted: 1.69, CI: 1.09-2.54). CONCLUSION: Low levels of natural IgM anti-PC could play an important role as risk markers for development of MI. Adjustment for common confounders only marginally affected the RR, suggesting that the addition of IgM anti-PC add independent information to the more traditional risk factors.

Place, publisher, year, edition, pages
Sage , 2009. Vol. 16, no 3, 382-386 p.
Identifiers
URN: urn:nbn:se:umu:diva-23136DOI: 10.1097/HJR.0b013e32832a05dfPubMedID: 19369878OAI: oai:DiVA.org:umu-23136DiVA: diva2:220459
Available from: 2009-06-01 Created: 2009-06-01 Last updated: 2017-12-13Bibliographically approved

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