[Effects of diets including an active vitamin D 3 metabolite and different contents of calcium and phosphorus on the state of blood free amino acids in hypokinetic rats].

Some aspects of amino acid metabolism in rats exposed to 30 days of hypokinesia were explored. The animals were placed on the diets with varying Ca/P ratio, containing 24, 25-dihydroxycholecalciferol (24, 25 (OH)2)D3, an active vitamin D3 metabolite. It was demonstrated that high consumption of phosphorus brought about an appreciable reduction in the blood amino acid pool, thus aggravating the body response characteristic for hypokinesia. The use of 24, 25 (OH)2D3 promoted the recovery of the amino acid status of hypokinetic rat blood, while the optimization of the Ca and P content in the diet was absolutely indispensable.