Supplementation with ω3 Polyunsaturated Fatty Acids and all-rac Alpha-Tocopherol Alone and in Combination Failed to Exert an Anti-inflammatory Effect in Human Volunteers

Sonia Vega-López, Nalini Kaul, Sridevi Devaraj, Ru Ya Cai, Bruce German, Ishwarlal Jialal

Research output: Contribution to journalArticlepeer-review

73 Scopus citations

Abstract

There is growing evidence supporting the importance of inflammation in all stages of atherosclerosis. While both ω-3 polyunsaturated fatty acids (n3PUFA) and the lipid-soluble antioxidant alpha-tocopherol (AT) have been shown to independently have significant anti-inflammatory effects, there is paucity of data examining the effect of n3PUFA alone and in combination with AT on markers of inflammation and monocyte function. Therefore, we tested the effect of n3PUFA alone, all-rac (synthetic) AT alone, and the combination on markers of inflammation and monocyte function. Healthy nonsmoking volunteers were randomly assigned to 1 of 4 groups (n = 20 per group): 1.5 g/d n3PUFA, 800 IU/d AT, 1.5 g n3PUFA + 800 IU/d AT, or placebo in a parallel double-blinded study. Compared to baseline, 12 weeks of supplementation resulted in no changes in plasma lipids regardless of treatment. Plasma AT was significantly increased only in those groups that received AT (P < .0001). Similarly, groups receiving n3PUFA showed a significant increase in plasma docosahexaenoic acid (P < .0001). No significant within- or between-group differences were found for plasma levels of high-sensitivity C-reactive protein (hsCRP). Furthermore, there were no differences in monocyte proinflammatory cytokine release (interleukin [IL]-1β, tumor necrosis factor [TNF]-α and IL-6) after activation with monocyte chemotactic protein-1 (MCP-1). In conclusion, supplementation with n3PUFA and all-rac AT at these doses is not anti-inflammatory.

Original languageEnglish (US)
Pages (from-to)236-240
Number of pages5
JournalMetabolism: Clinical and Experimental
Volume53
Issue number2
DOIs
StatePublished - Feb 2004

ASJC Scopus subject areas

  • Endocrinology
  • Endocrinology, Diabetes and Metabolism

Fingerprint Dive into the research topics of 'Supplementation with ω3 Polyunsaturated Fatty Acids and all-rac Alpha-Tocopherol Alone and in Combination Failed to Exert an Anti-inflammatory Effect in Human Volunteers'. Together they form a unique fingerprint.

Cite this