Numerous researches show that data on an ethnic origin can give additional information for the personified approach in treatment of different diseases. The aim of this study was to evaluate the level of some lipid peroxidation components and antioxidant defense system in Mongoloid and Caucasian patients with Type 1 diabetes mellitus. Conjugated dienes, ketodienes and conjugated trienes, thiobarbituric acid reactants, total antioxidant activity, α-tocopherol, retinol, superoxide dismutase activity, reduced and oxidized glutathione, and oxidative stress coefficient levels were evaluated in 65 patients with type 1 diabetes (38 Mongoloids and 27 Caucasians) and in 82 healthy people (42 Mongoloids and 40 Caucasians). Spectrophotometric and fluorometric methods were used. The intensity of LPO in Mongoloid patients was lower than in Caucasians: the level of primary and intermediate products was by lower 1.53 and 1.83 times, while total antioxidant activity was elevated by 1.44 times, and decreased α-tocopherol level by 1.32 times, which was also supported by oxidative stress coefficient (1.35 in Mongoloids and 2.32 in Caucasians). Activity of the POL-AOD system in Mongoloids is low, which is probably due to the increase of antioxidant defense system work. These results are consistent with clinical characteristics of type 1 diabetes mellitus with infrequent development of complications in Mongoloids living in Eastern Siberia.
Part of the book: Free Radicals, Antioxidants and Diseases