[Ca2(+)-dependent glucose absorption in the small intestine of rats under head-down tilt stress].

Verapamil was shown to improve the glucose absorption whereas perfusion of the rat small intestine with high-calcium solution decreased it. The transport system of glucose following the membrane hydrolysis proved rather stable under the effect of calcium. Stress seems to depress somewhat the mechanisms of glucose transport and to increase the calcium level in enterocytes against the background of occurring hypercalcemia.