TY - JOUR
T1 - 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
AU - Vega-López, Sonia
AU - Kaul, Nalini
AU - Devaraj, Sridevi
AU - Cai, Ru Ya
AU - German, Bruce
AU - Jialal, Ishwarlal
N1 - Funding Information:
Supported by Roche Vitamins, a NIH K24AT00596 award, and a NIH PHSDK35747-17/04 award.
PY - 2004/2
Y1 - 2004/2
N2 - 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.
AB - 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.
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U2 - 10.1016/j.metabol.2003.09.012
DO - 10.1016/j.metabol.2003.09.012
M3 - Article
C2 - 14767877
AN - SCOPUS:10744220611
SN - 0026-0495
VL - 53
SP - 236
EP - 240
JO - Metabolism: Clinical and Experimental
JF - Metabolism: Clinical and Experimental
IS - 2
ER -