期刊
JOURNAL OF OLEO SCIENCE
卷 66, 期 5, 页码 507-519出版社
JAPAN OIL CHEMISTS SOC
DOI: 10.5650/jos.ess16241
关键词
Japanese diet; Mediterranean diet; Italian diet; lipid metabolism; 1975 Japanese diet
资金
- Integration research for agriculture and interdisciplinary fields, Ministry of Agriculture, Forestry and Fisheries of Japan
- Canon Foundation
The Japanese diet and the Mediterranean diet are both known to be good for health, but there had been no direct comparison of their health benefits. In this study, we compared the 1975 Japanese diet, which has been found to have high health benefits, with the 2010 Italian diet, which contributes to the longest life expectancy in Mediterranean countries. Diets were created using one-week menus of the two diets based on FAOSTAT Food Balance Sheets. The diets were prepared, freeze-dried, powdered and fed to mice for 4 weeks to examine their effects on lipid metabolism. In mice fed the Japanese diet, the visceral fat weight was lower, adipocytes were smaller, the liver weight was lower and liver TG tended to be lower than those fed the Italian diet, and little lipid accumulation was observed in hepatocytes of mice fed the Japanese diet. In addition, in mice fed the Japanese diet, the expression levels of genes related to fatty acid synthesis were lower, whereas those of genes related to catabolism of fatty acids and cholesterol were higher than those fed the Italian diet. Therefore, the Japanese diet reduced accumulation of lipids in the white adipose tissue and liver by suppressing fatty acid synthesis and promoting catabolism of fatty acids and cholesterol in the liver, compared to the Italian diet.
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