THE INFLUENCE OF CALCIUM AND POTASSIUM UPON INTESTINAL ABSORPTION

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Abstract
KC1 when added to a 10% glucose solution in concns. from 0.03-0.15% increases the rate of absorption of the sugar solution from chronic closed intestinal loops in dogs; in similar concns. CaCl2 decreases the rate of absorption below normal. The increase produced by a 0.1% soln. of KCl is approximately equal to the decrease brought about by a similar concentration of CaCl2. The favorable action of KCl reaches a maximum at about 0.08% under these conditions. The retarding action of CaCl2 increases steadily up to 0.15% which was the highest concn. used. Normal rats given 2 cc. of a 50% glucose solution to which KCl was added (0.25 and 0.5%) absorbed more of the sugar than rats given a similar quantity of glucose to which like amounts of CaCl2 were added.

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