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Am J Physiol Endocrinol Metab 252: E365-E369, 1987;
0193-1849/87 $5.00
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AJP - Endocrinology and Metabolism, Vol 252, Issue 3 E365-E369, Copyright © 1987 by American Physiological Society

ARTICLES

Effect of anesthesia on glucose production and utilization in rats

L. Penicaud, P. Ferre, J. Kande, A. Leturque, T. Issad and J. Girard

This study was undertaken to determine the effects of pentobarbital anesthesia (50 mg/kg ip) on glucose kinetics and individual tissue glucose utilization in vivo, in chronically catheterized rats. Glucose turnover studies were carried out using [3-3H]glucose as tracer. A transient hyperglycemia and an increased glucose production were observed 3 min after induction of anesthesia. However, 40 min after induction of anesthesia, glycemia returned to the level observed in awake animals, whereas glucose turnover was decreased by 30% as compared with unanesthetized rats. These results are discussed with regard to the variations observed in plasma insulin, glucagon, and catecholamine levels. Glucose utilization by individual tissues was studied by the 2-[1-3H]deoxyglucose technique. A four- to fivefold decrease in glucose utilization was observed in postural muscles (soleus and adductor longus), while in other nonpostural muscles (epitrochlearis, tibialis anterior, extensor digitorum longus, and diaphragm) and other tissues (white and brown adipose tissues) anesthesia did not modify the rate of glucose utilization. A decrease in glucose utilization was also observed in the brain.


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