休眠(计算)
糖原
尿素
糖异生
地松鼠
内科学
糖酵解
内分泌学
化学
生物
新陈代谢
动物科学
脂肪酸
生物化学
医学
温度调节
国家(计算机科学)
计算机科学
算法
作者
William Galster,PR Morrison
标识
DOI:10.1152/ajplegacy.1975.228.1.325
摘要
The hibernation season in the arctic ground squirrel (Citellus undulatus) is broken into 8- to 18- day cycles by short homeothermal periods during which the carboydrate reserves depleted during hibernation are replenished. This study follows a number of metabolities in tissues and body fluids to assess the sources for reconstitution of the glucose reserves: lactate, urea, ammonia, free fatty acid, glycerol, triglyceride, and glucose in plasma; glycogen in liver and muscle; and urea and ammonia nitrogen in urine. Fat is the major energy source during both homeothermal and heterothermal periods, the contribution from glucose being limited to glycolysis. Reconstitution of glycogen is accomplished prior to reentry through maximal use of substrates from all sources including glycolysis, fat, and protein metabolism. Of the new gluconeogenic substrate, one-fourth is supplied from protein and three-fourths from fat.
科研通智能强力驱动
Strongly Powered by AbleSci AI