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哺乳动物心脏的葡萄糖代谢氧效率要比自由脂肪酸高25～50％。为了评价其在慢性低氧适应中的作用，我们以克亚和会巴两个生活在海拔3000m以上的民族和一组低海拔自愿受试者为研究对象，利用正电子辐射断层扫描技术为手段．检测了受试者经一夜禁食后心脏局部葡萄糖摄取速率。结果
The metabolic efficiency of glucose metabolism in mammalian heart is 25% to 50% higher than that of free fatty acids. In order to evaluate its role in chronic hypoxia adaptation, we used two ethnic groups living at an altitude of 3000 m above sea level in Keyaheba and a group of volunteers at low altitudes as the research object, using positron emission tomography . The rate of local glucose uptake in the heart after a single overnight fast was tested. result