1. Department of Pathology and Biology of Diseases, Graduate School of Medicine, Kyoto University, Kyoto, Japan.
2. Tsukuba Laboratory, Japan Oil Company, Tsukuba, Japan.
3. Department of Metabolism and Clinical Nutrition, Graduate School of Medicine, Kyoto University, Kyoto, Japan.
4. Laboratory of Food and Biodynamics, Nagoya University Graduate School of Bioagriculture, Nagoya, Japan.