Effect of prolonged starvation on glycogen synthase and glycogen synthase phosphatase activity in rat heart.

作者: Mary C. Gannon , Frank Q. Nuttall

DOI: 10.1093/JN/114.11.2147

关键词:

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.

参考文章(17)
D.H. Williamson, J.T. Brosnan, Concentrations of Metabolites in Animal Tissues Methods of Enzymatic Analysis (Second English Edition)#R##N#Volume 4. pp. 2266- 2302 ,(1974) , 10.1016/B978-0-12-091304-6.50093-8
F Q Nuttali, M C Gannon, V A Corbett, M P Wheeler, Insulin stimulation of heart glycogen synthase D phosphatase (protein phosphatase). Journal of Biological Chemistry. ,vol. 251, pp. 6724- 6729 ,(1976) , 10.1016/S0021-9258(17)33005-3
Z Ahmad, A A DePaoli-Roach, P J Roach, Purification and characterization of a rabbit liver calmodulin-dependent protein kinase able to phosphorylate glycogen synthase. Journal of Biological Chemistry. ,vol. 257, pp. 8348- 8355 ,(1982) , 10.1016/S0021-9258(18)34337-0
Chiharu Nakai, James A. Thomas, Control of glycogen synthase phosphatase from rat heart. The role of substrate. Journal of Biological Chemistry. ,vol. 248, pp. 2208- 2213 ,(1973) , 10.1016/S0021-9258(19)44206-3
M.E. Payne, T.R. Soderling, Calmodulin-dependent glycogen synthase kinase. Journal of Biological Chemistry. ,vol. 255, pp. 8054- 8056 ,(1980) , 10.1016/S0021-9258(19)70605-X
C Ip, H M Tepperman, P Holohan, J Tepperman, Insulin binding and insulin response of adipocytes from rats adapted to fat feeding. Journal of Lipid Research. ,vol. 17, pp. 588- 599 ,(1976) , 10.1016/S0022-2275(20)41730-4
Michel. DuBois, K. A. Gilles, J. K. Hamilton, P. A. Rebers, Fred. Smith, Colorimetric Method for Determination of Sugars and Related Substances Analytical Chemistry. ,vol. 28, pp. 350- 356 ,(1956) , 10.1021/AC60111A017
James A. Thomas, Keith K. Schlender, Joseph Larner, A rapid filter paper assay for UDPglucose-glycogen glucosyltransferase, including an improved biosynthesis of UDP-14C-glucose Analytical Biochemistry. ,vol. 25, pp. 486- 499 ,(1968) , 10.1016/0003-2697(68)90127-9