Journal article
Prostaglandin E2 production and T cell function after fish-oil supplementation: response to antioxidant cosupplementation.
- Abstract:
- BACKGROUND: Prostaglandin E(2) (PGE(2)) inhibits lymphocyte proliferation and the production of interferon-gamma (IFN-gamma) by peripheral blood mononuclear cells, but the effect of PGE(2) on interleukin 4 (IL-4) production is unclear. Fish oil, which contains eicosapentaenoic and docosahexaenoic acids, inhibits production of PGE(2). The effects of fish oil on lymphocyte proliferation and production of IFN-gamma and IL-4 are unclear and may be influenced by the availability of antioxidants. OBJECTIVE: We investigated the effect of dietary fish oil with and without antioxidant cosupplementation on lymphocyte proliferation and the production of PGE(2), IFN-gamma, and IL-4 by peripheral blood mononuclear cells. DESIGN: Sixteen healthy men received dietary fish-oil supplements providing 0.3, 1, and 2 g eicosapentaenoic acid plus docosahexaenoic acid/d for 4 consecutive weeks each (total of 12 wk). All subjects were randomly assigned to daily cosupplementation with either antioxidants (200 microg Se, 3 mg Mn, 30 mg RRR-alpha-tocopheryl succinate, 90 mg ascorbic acid, 450 micro g vitamin A) or placebo. RESULTS: Fish-oil supplementation decreased PGE(2) production and increased IFN-gamma production and lymphocyte proliferation from baseline values. Cosupplementation with antioxidants did not affect cytokine production or lymphocyte proliferation. CONCLUSION: Dietary fish oil modulates production of IFN-gamma and lymphocyte proliferation in a manner consistent with decreased production of PGE(2), but this effect is not modified by antioxidant cosupplementation.
- Publication status:
- Published
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- Journal:
- American journal of clinical nutrition More from this journal
- Volume:
- 78
- Issue:
- 3
- Pages:
- 376-382
- Publication date:
- 2003-09-01
- EISSN:
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1938-3207
- ISSN:
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0002-9165
- Language:
-
English
- Keywords:
- Pubs id:
-
pubs:127042
- UUID:
-
uuid:1793f405-1e94-4798-8e4d-002844da6d31
- Local pid:
-
pubs:127042
- Source identifiers:
-
127042
- Deposit date:
-
2012-12-19
- ARK identifier:
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- Copyright date:
- 2003
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