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Journal of Nutrition Vol. 94 No. 1 January 1968, pp. 52-56
Copyright © 1968 by American Society for Nutrition
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Diet-Dependence of Rat Liver Glucose 6-Phosphate Dehydrogenase Levels1

H. F. Sassoon, Julia Watson and B. Connor Johnson

Biochemistry Section, Oklahoma Medical Research Foundation, Oklahoma City, Oklahoma

The level of glucose 6-phosphate dehydrogenase in liver is altered strikingly by starvation and also by refeeding, but the steps by which increased synthesis of this enzyme is induced have not been satisfactorily identified. Recent work suggests that hormones may have a general rather than a specific role. When starved rats were refed diets varying either in amount or in carbohydrate content, their liver glucose 6-phosphate dehydrogenase increased directly with their carbohydrate intakes. Insulin, and other hormones tested, given without carbohydrate, but with adequate protein and energy intakes, had no effect on liver glucose 6-phosphate dehydrogenase levels.

1 Supported in part by the U.S. Air Force under Contract no. AF 41 (609)-2923, monitored by the Arctic Aeromedical Laboratory. (This is not an official publication under the contract; views or opinions expressed herein are not to be construed as necessarily reflecting the views or endorsement of the Department of Air Force or of the Arctic Aeromedical Laboratory.) The cost of the sucrose component of the diet was defrayed by the Sugar Research Foundation, Inc., New York, New York.

Manuscript received 23 June 1967.




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