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Science 8 November 1968:
Vol. 162. no. 3854, pp. 692 - 693
DOI: 10.1126/science.162.3854.692
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Articles

Dietary Regulation of Galactose-Metabolizing Enzymes: Adaptive Changes in Rat Jejunum

Fred B. Stifel 1, Robert H. Herman 1, and Norton S. Rosensweig 1

1 U.S. Army Medical Research and Nutrition Laboratory, Denver, Colorado 80240

The effects of dietary galactose, sucrose, fructose, glucose, casein, and fasting upon the activity of four galactose-metabolizing enzymes (galactokinase, galactose-1-phosphate uridyltransferase, uridine diphosphate galactose 4-epimerase, and galactose dehydrogenase) were studied in the jejunum of rats. Galactose produced the greatest increase in enzyme activity, fructose and sucrose produced effects intermediate between galactose and glucose, and casein produced a greater activity increase than fasting, but less than the sugars.

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Science. ISSN 0036-8075 (print), 1095-9203 (online)