A HIGH ALPHA-LINOLENATE DIET SUPPRESSES ANTIGEN-INDUCED IMMUNOGLOBULIN-E RESPONSE AND ANAPHYLACTIC SHOCK IN MICE

被引:37
作者
WATANABE, S
SAKAI, N
YASUI, Y
KIMURA, Y
KOBAYASHI, T
MIZUTANI, T
OKUYAMA, H
机构
[1] Department of Biological Chemistry, Faculty of Pharmaceutical Sciences, Nagoya City University, Mizuho-ku, Nagoya 467
关键词
ALPHA-LINOLENIC ACID; LINOLEIC ACID; ANAPHYLACTIC SHOCK; IMMUNOGLOBULIN E; ANTIBODY; MICE;
D O I
10.1093/jn/124.9.1566
中图分类号
R15 [营养卫生、食品卫生]; TS201 [基础科学];
学科分类号
100403 ;
摘要
Mice were fed for 2 mo diets having ratios of alpha-linoienate [18:3(n-3)] to linoleate [18:2(n-6)] of <0.01, 0.36, 1.0 and 3.9. Proportions of safflower seed oil and perilla seed oil were adjusted to obtain these ratios. The dietary alpha-linolenate to linoleate balance was reflected in the proportion of (n-3) and (n-6) highly unsaturated fatty acids with 20- and 22-carbon chains in spleen phospholipids, but the ratio did not affect the proportion of T lymphocyte subsets expressing CD4 and CD8 antigens in splenic leukocytes. The immunoglobulin (Ig) G and ISM responses against sheep red blood cells when estimated as plaque-forming cells present in spleen, were not affected significantly by the diets. However, the serum hemagglutinin titer was slightly but significantly higher in the high alpha-linolenate diet group [18:3(n-3)/18:2(n-6) = 3.9] than in the dietary groups with 18:3(n-3) to 18:2(n-6) ratios of 0.36 and <0.01. In contrast, the ISE antibody response against egg albumin, as well as the mortality from anaphylactic shock induced by a second challenge with antigen, was significantly lower in the high alpha-linolenate diet group [18: 3(n-3)/18:2(n-6) = 3.9] than in the high linoleate diet [18:3(n-3)/18:2(n-6) <0.01] group. These results, together with the reported suppressive effects of a high alpha-linolenate diet on the formation of lipid derived allergic mediators, support the hypothesis that raising the (n-3) to (n-6) ratios of diets would be effective in reducing the severity of immediate-type allergic hypersensitivity.
引用
收藏
页码:1566 / 1573
页数:8
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