LAUSR

The effect of 2-ethyl-3-hydroxy-6-methylpyridine nitroxy succinate (1) on heart, brain, and liver tissues of experimental animals (C57/b1 mice) was studied by EPR. It was shown that compound 1, like nicorandil, increases the nitric oxide production in cells and, like mexidol, protects iron-sulfur clusters of the mitochondrial respiratory chain in heart, brain, and liver tissues of animals against oxidative damage. Experimental evidence was obtained that under oxidative conditions, mitochondrial iron-sulfur clusters are maintained in the reduced functional state due to the presence of succinate (as nitroxy succinic acid), as a metabolite of the tricarboxylic acid cycle, in compound 1.