[New aspect of carbohydrate metabolism in vitamin A deficient rats: absorption of glucose during intestinal perfusions in vivo].

24 hour fasting rats are anaesthetized and the small intestines are perfused in situ with a Tyrode solution at 37 degrees C, 1 ml/min., containing 0,5 to 15 g of glucose per liter. Larger amounts of glucose and water are absorbed by the intestine of vitamin A-deficient rats at all oncentrations of glucose. Intestines of meal fed rats absorbed more glucose than ad libitumnes. Plasma glucose and insulin levels are measured both before and during the perfusions everal higher values of hyperglycemia are noted in deficient rats which developed a particular lower insulinemia (these results are detailed in a further article).