作者: Mary C. Gannon , Frank Q. Nuttall
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摘要: Rats were fasted 24, 48 or 72 hours to determine the effect of several days without food on glycogen synthase and phosphatase activity in heart. The basal percentage I decreased gradually from approximately 20% fed animals 6% rats starved for hours. Glycogen increased progressively 4.6 mg/g wet weight 7.6 72-hour rats. Thus, there was an inverse relationship between concentration I. total measured at a standardized 50% by 24 starvation then unchanged up decrease correlated directly with insulin 24-72 rapid stimulatory observed delayed This slower response insulin. lost completely proposed mechanism lack is resistance. remains be elucidated.