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Author Notes:

Correspondence: Paolo Raggi, MD, 1365 Clifton Road NE, AT-504, Atlanta, GA,30322; Tel: 404 778-5414; Fax: 404 778-3540; Email: praggi@emory.edu

Disclosures: There is no relation with industry to be disclosed

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Research Funding:

There is no source of funding

Keywords:

  • epicardial adipose tissue
  • systemic lupus erythematosus
  • atherosclerosis
  • coronary calcium score
  • corticosteroids

Epicardial Adipose Tissue is Increased in Patients with Systemic Lupus Erythematosus

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Journal Title:

Atherosclerosis

Volume:

Volume 223, Number 2

Publisher:

, Pages 389-393

Type of Work:

Article | Post-print: After Peer Review

Abstract:

Objective Morbidity and mortality secondary to premature cardiovascular disease (CVD) in systemic lupus erythematosus (SLE) remain significant issues. The pathogenesis of CVD in SLE patients has not been fully explored. Epicardial adipose tissue (EAT) is believed to contribute to atherosclerosis development, through a paracrine and systemic inflammatory effect. We measured EAT volume in 162 SLE patients and 86 matched controls to assess the association of EAT with markers of atherosclerosis, cardiovascular risk and immunoactivation. Methods Clinical and laboratory characteristics collected included anthropomorphic measures, disease activity and damage indices, blood pressure measurement, lipid profile, inflammatory indices, adipokine levels and measures of adiposity. Coronary artery calcium (CAC) and EAT volume were measured using non-contrast cardiac computed tomography. Results EAT volume was greater in patients with SLE [(mean± SD) 96.8±45.9cm3] than controls (78.2±40.7 cm3; P=0.001). The EAT volume was 31% larger (95% CI, 16.5% – 47.4%) in SLE patients than controls (P<0.001 adjusted for age, sex, and race; after additional adjustment for waist circumference P=0.007). Within SLE patients, after adjusting for age, race, sex, and waist circumference, EAT volume was associated with cumulative corticosteroid dose (P=0.007), current corticosteroid use (P<0.001), HDL cholesterol (P=0.033), and triglycerides (P=0.005). EAT was significantly correlated with CAC score (P<0.001), but the association was attenuated after adjustment for Framingham risk score (P=0.051). Conclusion The increased EAT volume seen in SLE patients is associated with corticosteroid use. Corticosteroids could have adverse cardiovascular effects in SLE via an increase in EAT volume, a marker of risk in the general population.

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© 2012 Elsevier Ireland Ltd. All rights reserved.

This is an Open Access work distributed under the terms of the Creative Commons Attribution-NonCommerical-NoDerivs 3.0 Unported License (http://creativecommons.org/licenses/by-nc-nd/3.0/).

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