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Anti-Oxidized LDL Antibodies and Coronary Artery Disease: A Systematic Review

1
Department of Cardiology, Erasmus MC, University Medical Center Rotterdam, 3015 GD Rotterdam, The Netherlands
2
National Heart and Lung Institute, Imperial College London, W12 0NN London, UK
*
Author to whom correspondence should be addressed.
Joint senior author.
Antioxidants 2019, 8(10), 484; https://doi.org/10.3390/antiox8100484
Received: 12 September 2019 / Revised: 3 October 2019 / Accepted: 9 October 2019 / Published: 15 October 2019
(This article belongs to the Special Issue Oxidized LDL Lipids)
Antibodies to oxidized LDL (oxLDL) may be associated with improved outcomes in cardiovascular disease. However, analysis is restricted by heterogenous study design and endpoints. Our objective was to conduct a comprehensive systematic review assessing anti-oxLDL antibodies in relation to coronary artery disease (CAD). Through a systematic literature search, we identified all studies assessing the relationship of either, IgG or IgM ox-LDL/ copper-oxLDL/ malondialdehyde-LDL, with coronary atherosclerosis or cardiovascular events in populations with, and without, established CAD. Systematic review best practices were adhered to and study quality was assessed. An initial electronic database search identified 2059 records, which was subsequently followed by abstract and full-text review. Finally, we included 18 studies with over 1811 patients with CAD. The studies varied according to populations studied, conventional cardiovascular risk factors and interventional modalities used to assess CAD. IgM anti-oxLDL antibodies were found to indicate protection from more severe CAD and possibly cardiovascular events, whilst the relationship with IgG is more complex and difficult to elucidate, with studies reporting divergent results. In this systematic review, there is evidence that suggests a relationship between anti-oxLDL antibodies and CAD, especially for the IgM subclass. However, further studies, with well-characterized prospective cohorts, will be important to clarify these associations. View Full-Text
Keywords: myocardial infarction; inflammation; antibody; coronary angiography; coronary artery disease myocardial infarction; inflammation; antibody; coronary angiography; coronary artery disease
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van den Berg, V.J.; Vroegindewey, M.M.; Kardys, I.; Boersma, E.; Haskard, D.; Hartley, A.; Khamis, R. Anti-Oxidized LDL Antibodies and Coronary Artery Disease: A Systematic Review. Antioxidants 2019, 8, 484.

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