EFFECTS OF SHORT-TERM DIETARY CHANGE FROM HIGH FAT TO HIGH CARBOHYDRATE DIETS ON ENERGY METABOLISM DURING PROLONGED EXERCISE IN UNTRAINED RATS

短期饮食从高脂肪饮食改为高碳水化合物饮食对未经训练的大鼠长时间运动期间能量代谢的影响

• 批准号: 07680092
• 负责人: SAITOH Shinichi
• 金额: $ 1.6万
• 依托单位: UNIVERSITY OF TSUKUBA
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for Scientific Research (C)
• 财政年份: 1995
• 资助国家: 日本
• 起止时间: 1995 至 1996
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-07680092/
• 关键词: CHO LOADING; GLYCOGEN STORE; TRIACLYGLYCEROL STORE; LIPOLYSIS; LIVER GLYCOGEN SPARING; RATS; グリコーゲン・ロ-ディング; グリコーゲン; 中性脂肪; 短期間の食事組成切り替え; 筋肉; グリコーゲンホスフォリラーゼ; β-アドレナリン性受容体; 肝臓

This study was conducted to obtain effects of short-term dietary change from a high fat (F) diet to a high carbohydrate (C) diet on glycogen storage and utilization of muscle and liver, and lipolysis in adipose tissue in rats previously fed F diet. The results suggest that compared with the rats fed F diet, the rats who were switched from F diet to C diet (CHO loading) for 3 days enhanced glycogen stores of muscle and liver at rest and shortly after exercise, and that liver glycogen sparing during exercise. In vitro lipolytic activity of visceral adipose tissue was not impaired by CHO loading. In addition, short-term C diet feeding with or without energy restriction resulted in liver glycogen sparing during exercse, and that the C diet feeding with energy restriction only enhanced glycogen stores of muscle and liver at rest.

本研究旨在获得从高脂肪（F）饮食到高碳水化合物（C）饮食的短期饮食变化对先前喂食F饮食的大鼠肌肉和肝脏糖原储存和利用以及脂肪组织中脂肪分解的影响。结果表明，与F组相比，C组大鼠在安静时和运动后即刻肌糖原和肝糖原储备增加，运动时肝糖原储备减少。内脏脂肪组织的体外脂解活性不受CHO负荷的影响。此外，短期C型日粮加或不加能量限制均导致运动时肝糖原储备减少，而加能量限制的C型日粮仅增加了静息时肌肉和肝脏的糖原储备。

项目成果

Shinichi Saitoh: "Effects of short-term dietory change from high fat to high carbohydrate diets on the storage and utilization of glycogen and triacylglycard in untrained rats" Eur J Appl Physiol. 74・1-2. 13-22 (1996)

Shinichi Saitoh：“从高脂肪饮食到高碳水化合物饮食的短期饮食变化对未经训练的大鼠糖原和三酰基甘油的储存和利用的影响”Eur J Appl Physiol 74・1-22（1996）。

Shinichi Saitoh: "Effects of short-term dietary change from high fat to high carbohydrate diets on the storage and utilization of glycogen and triacylglycerol in untrained rats" Eur J Appl Physiol. 74. 13-22 (1996)

Shinichi Saitoh：“从高脂肪饮食到高碳水化合物饮食的短期饮食变化对未经训练的大鼠糖原和三酰甘油的储存和利用的影响”Eur J Appl Physiol。

Shinichi Saitoh et al.: "Effects of short-term dietary change from high fat to high carbohydrate diets on the strage and utilization of glycogar and triecylglyaral in vatlaiumrn.21GC01:Eur J Appl Physiol" 74・1-2. 13-22 (1996)

Shinichi Saitoh 等人：“从高脂肪饮食到高碳水化合物饮食的短期饮食变化对 vatlaiumrn.21GC01：Eur J Appl Physiol 中糖和三酰甘油的储存和利用的影响” 74・1-2（ 1996）