We studied the effect of molecular hydrogen (H) on the content of 2,3-diphosphoglyceric acid (2,3-DPG), ATP, malondialdehyde, and catalase activity in erythrocytes in chronic heart failure. Inhalation of 2% molecular hydrogen H was carried out for 40 min repeatedly (5 days) or once. Inhalation of H caused an increase in ATP concentration in both research groups, but was more pronounced after repeated inhalation. The content of 2,3-DPG increased after repeated exposure to H. The increase in metabolic activity under the effect of H was accompanied by a decrease in malondialdehyde concentration and an increase in catalase activity. Thus, the application of H in chronic heart failure reduced oxidative stress and improved metabolism of erythrocytes, which contributes to improvement of microcirculation. This allows us to recommend H for protection against ischemic and reperfusion damage to the myocardium.
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