2009 Fiscal Year Final Research Report

Seasonality in the balance between carbohydrates and lipids metabolism among Japan, Thai and Poland

Research Project

Project/Area Number	19207020
Research Category	Grant-in-Aid for Scientific Research (A)
Allocation Type	Single-year Grants
Section	一般
Research Field	生理人類学
Research Institution	Osaka City University
Principal Investigator	SONE Yoshiaki Osaka City University, 大学院・生活科学研究科, 教授 (60145802)
Co-Investigator(Kenkyū-buntansha)	HIROTA Naoko 松本大学, 人間健康学部・健康栄養学科, 教授 (60218857)
Project Period (FY)	2007 – 2009
Keywords	代謝バランス / 呼吸商 / 呼気中水素ガステスト / 基礎代謝 / 季節性 / 糖質代謝 / 脂質代謝 / 食物摂取 / 食物摂取頻度調査
Research Abstract	Although we found the seasonality in carbohydrate absorption in Japanese and Polish subjects, there was no significant seasonal change in the efficiency of carbohydrate absorption with Thai subjects. We found significant seasonal change in Respiratory Quotient (RQ) after overnight fasting with Japanese subject, where RQ values were the lowest in summer and the highest in winter. In Poland there was similar trend in seasonal change in RQ values (not significant). In contrast to these two countries, there was no seasonal change in RQ in Thailand. Food intake survey showed that there was no seasonal change in the ratios of carbohydrate to lipid intake (per the same energy intake) in the three counties.

(4 results)