Free fatty acids are associated with metabolic syndrome and insulin resistance but not inflammation in systemic lupus erythematosus

M. J. Ormseth, L. L. Swift, Sergio Fazio, M. F. Linton, P. Raggi, J. F. Solus, A. Oeser, A. Bian, T. Gebretsadik, A. Shintani, C. M. Stein

Research output: Contribution to journalArticle

25 Citations (Scopus)

Abstract

Free fatty acids (FFAs) are implicated in the pathogenesis of insulin resistance and atherosclerosis. Inflammatory cytokines promote lipolysis and increase FFAs, a cause of endothelial dysfunction and increased atherosclerosis risk. We hypothesized that increased inflammation is associated with increased FFAs, resulting in insulin resistance and atherosclerosis in patients with systemic lupus erythematosus (SLE). We measured clinical variables, serum FFAs, homeostasis model assessment for insulin resistance (HOMA), inflammatory cytokines, markers of endothelial activation, cholesterol concentrations and coronary artery calcium in 156 patients with SLE and 90 controls. We compared FFAs in patients with SLE and controls using Wilcoxon rank sum tests and further tested for the independent association between FFAs and disease status with adjustment for age, race and sex using multivariable regression models. We assessed the relationship between FFAs and continuous variables of interest using Spearman correlation and multivariable regression analysis. Levels of FFAs were higher in patients with SLE than controls (0.55-mmol/l (0.37-0.71) vs 0.44-mmol/l (0.32-0.60), P-=-0.02). Levels of FFAs remained significantly higher among patients with SLE after adjustment for age, race and sex (P-=-0.03) but not after further adjustment for body mass index (P-=-0.13). FFA levels did not differ according to the usage of current immunosuppressive medications in univariate and adjusted analysis (all P->-0.05). Among patients with SLE, concentrations of FFAs were higher among those with metabolic syndrome compared to those without (0.66-mmol/l (0.46-0.81) vs 0.52-mmol/l (0.35-0.66), P--0.05) but were positively associated with levels of E-selectin (rho-=-0.33, P-=-

Original languageEnglish (US)
Pages (from-to)26-33
Number of pages8
JournalLupus
Volume22
Issue number1
DOIs
StatePublished - Jan 2013
Externally publishedYes

Fingerprint

Nonesterified Fatty Acids
Systemic Lupus Erythematosus
Insulin Resistance
Inflammation
Atherosclerosis
Nonparametric Statistics
Cytokines
E-Selectin
Lipolysis
Immunosuppressive Agents
Coronary Vessels
Body Mass Index
Homeostasis
Cholesterol
Regression Analysis
Calcium

Keywords

  • Cardiovascular disease
  • endothelial activation
  • free fatty acids
  • insulin resistance
  • metabolic syndrome
  • systemic lupus erythematosus

ASJC Scopus subject areas

  • Rheumatology

Cite this

Free fatty acids are associated with metabolic syndrome and insulin resistance but not inflammation in systemic lupus erythematosus. / Ormseth, M. J.; Swift, L. L.; Fazio, Sergio; Linton, M. F.; Raggi, P.; Solus, J. F.; Oeser, A.; Bian, A.; Gebretsadik, T.; Shintani, A.; Stein, C. M.

In: Lupus, Vol. 22, No. 1, 01.2013, p. 26-33.

Research output: Contribution to journalArticle

Ormseth, MJ, Swift, LL, Fazio, S, Linton, MF, Raggi, P, Solus, JF, Oeser, A, Bian, A, Gebretsadik, T, Shintani, A & Stein, CM 2013, 'Free fatty acids are associated with metabolic syndrome and insulin resistance but not inflammation in systemic lupus erythematosus', Lupus, vol. 22, no. 1, pp. 26-33. https://doi.org/10.1177/0961203312462756
Ormseth, M. J. ; Swift, L. L. ; Fazio, Sergio ; Linton, M. F. ; Raggi, P. ; Solus, J. F. ; Oeser, A. ; Bian, A. ; Gebretsadik, T. ; Shintani, A. ; Stein, C. M. / Free fatty acids are associated with metabolic syndrome and insulin resistance but not inflammation in systemic lupus erythematosus. In: Lupus. 2013 ; Vol. 22, No. 1. pp. 26-33.
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AU - Oeser, A.

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