We compared the effect of xymedon (100 mg/kg) and Mexidol (50 mg/kg) on morphometric parameters of erythrocytes and oxygen-transporting function of hemoglobin in rats with Walker-256 carcinoma treated with docetaxel (15 mg/kg once intraperitoneally on day 11 after tumor cells transplantation). Xymedon and Mexidol were injected intramuscularly for 10 days starting from day 11 of the experiment. The studied parameters were evaluated on experimental days 14 and 22. Similar to Mexidol, xymedon prevented changes in the erythrocyte geometric parameters induced by docetaxel and neoplastic process, but increased hemoglobin packing density in erythrocytes (by 32%) more effectively than Mexidol. Optimization of oxygen-transporting function of hemoglobin and normalization of its structural and functional parameters changed by docetaxel treatment (content of oxyhemoglobin, hemoglobin affinity for oxygen and its ability to bind and release oxygen, intensity of symmetric and asymmetric vibrations of pyrrole rings) in rats receiving xymedon took longer time than in case of Mexidol treatment, but the effects were similar.
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