ETHANE PRODUCTION-RATE INVIVO IS REDUCED WITH DIETARY RESTRICTION

被引:28
|
作者
HABIB, MP
DICKERSON, F
MOORADIAN, AD
机构
[1] UNIV ARIZONA,COLL MED,DEPT MED,DIV RESTORAT MED,1821 E ELM ST,TUCSON,AZ 85719
[2] UNIV ARIZONA,COLL MED,DEPT MED,PULM SECT,TUCSON,AZ 85719
[3] VET ADM MED CTR,TUCSON,AZ 85723
关键词
aging; diet; lipid peroxidation;
D O I
10.1152/jappl.1990.68.6.2588
中图分类号
Q4 [生理学];
学科分类号
071003 ;
摘要
Dietary restriction without malnutrition prolongs life and has a beneficial effect on age-related diseases and metabolic derangements. To test th eeffect of food restriction on ethane production rate, ethane exhalation was measured in rats with partial food restriction. Ethane production rate in room air in rats fed 60% of food consumed by ad libitum-fed animals for 2 wk was significantly reduced (3.50 ± 0.25 vs. 5.21 ± 0.34 pmol · min-1 · 100 g body wt-1, P < 0.01). In 100% oxygen, ethane production in food-restricted rats was not different from that of ad libitum-fed rats (21.81 ± 1.25 vs. 19.57 ± 1.89 pmol · min-1 · 100 g-1). Fifteen hours of fasting compared with ad libitum feeding reduced ethane production modestly in room air (4.37 ± 0.45 vs. 5.21 ± 0.34 pmol · min-1 · 100 g-1) and more significantly in 100% oxygen (12.37 ± 0.78 vs. 19.57 ± 1.89 pmol · min-1 · 100 g-1). Thus, in 100% oxygen, 15 h of fasting, compared with ad libitum feeding, resulted in an ~40% decrease in ethane production rate. It is concluded that short-term food restriction significantly reduces ethane exhalation rate in rats when measured in room air.
引用
收藏
页码:2588 / 2590
页数:3
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