Dose-Response Effect of Dietary Docosahexaenoic Acid on Fatty Acid Profiles of Serum and Tissue Lipids in Rats.
The dose-response effects of dietary docosahexaenoic acid (22:6n-3, DHA) on the fatty acid profiles of total lipids of rat serum and tissues were investigated. Rats were fed diets containing graded levels of purified DHA at 0, 1.0, 3.4, and 8.7% of total energy in the diets for 2 weeks. It was found that each tissue had its own peculiar composition of fatty acids which differed markedly from that of circulating serum lipid. This composition was basically influenced dose-dependently by the dietary lipids with graded levels of DHA, but to different degrees in different tissues. Those of brain were most resistant and of heart most susceptible to dietary DHA.
Saito
M
Division of Food Science, National Institute of Health and Nutrition, 1-23-1 Toyama, Shinjuku-ku, Tokyo 162, Japan, and Department of Food Science, Faculty of Home Economics, Jissen Women's University, Hino-shi, Tokyo 191, Japan.
Ueno
M
Kubo
K
Yamaguchi
M