Pathways of glucose metabolism in the isolated islet of the goosefish in vitro

Abstract
The contribution of the pentose cycle to the oxidation of glucose by goosefish islet has been estimated in vitro using 2 different procedures. The first procedure is based on the total amount of glucose utilized and the yields of C14O2 from glucose -1-C14 and -6-C14. The second is based on the amount of randomizazation of carbon 2 of glucose-2-Cl4 during its conversion into the glucose unit of glycogen. At the normal blood glucose concentration of the goosefish (25 mg/100 ml) the fraction of glucose metabolized via the pentose cycle was less than 0.11. This fraction decreased when the glucose concentration was increased to 200 mg/100 ml.

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