Indices of oxygen supply are studied in preadolescent rats with experimental rachitis. Disturbances in transport, capillary-tissue diffusion and oxygen utilization by tissues of the brain, liver and skeletal muscles correlating with a degree of the rachitis gravity are revealed. It is proved as possible to correct the revealed disturbances while using piracetam and vitamin D3. In this case manifestation of the tissue hypoxia in animals with experimental rachitis weakens and at the same time metabolic disturbances are eliminated.
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