PMID: 6539692Jan 1, 1984Paper

Muscle and liver glycogen, protein, and triglyceride in the rat. Effect of exercise and of the sympatho-adrenal system

European Journal of Applied Physiology and Occupational Physiology
E A RichterH Galbo

Abstract

We have previously found that during exercise net muscle glycogen breakdown is impaired in adrenodemedullated rats, as compared with controls. The present study was carried out to elucidate whether, in rats with deficiencies of the sympatho-adrenal system, diminished exercise-induced glycogenolysis in skeletal muscle was accompanied by increased breakdown of triglyceride and/or protein. Thus, the effect of exhausting swimming and of running on concentrations of glycogen, protein, and triglyceride in skeletal muscle and liver were studied in rats with and without deficiencies of the sympatho-adrenal system. In control rats, both swimming and running decreased the concentration of glycogen in fast-twitch red and slow-twitch red muscle whereas concentrations of protein and triglyceride did not decrease. In the liver, swimming depleted glycogen stores but protein and triglyceride concentrations did not decrease. In exercising rats, muscle glycogen breakdown was impaired by adrenodemedullation and restored by infusion of epinephrine. However, impaired glycogen breakdown during exercise was not accompanied by a significant net breakdown of protein or triglyceride. Surgical sympathectomy of the muscles did not influence muscle substra...Continue Reading

References

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Citations

Jan 1, 1988·European Journal of Applied Physiology and Occupational Physiology·J GórskiU Puch
Jun 11, 2005·Journal of Cardiac Failure·Andrew L Clark, John G F Cleland
Jun 1, 2005·European Journal of Heart Failure·Klaus K A WitteAndrew L Clark
Jan 4, 2012·Magnetic Resonance in Medicine : Official Journal of the Society of Magnetic Resonance in Medicine·Richard A M JonkersJeanine J Prompers
Oct 1, 1996·Pflügers Archiv : European journal of physiology·A N BoschT D Noakes
Jul 1, 1985·The Proceedings of the Nutrition Society·H Galbo
Jul 20, 1999·Clinics in Sports Medicine·L P Turcotte

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