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ISSN Druckformat: 2155-014X
ISSN Online: 2155-0158
Impact of Various Polyphenols on Disturbance of Cholesterol Metabolism under Insulin Resistance
ABSTRAKT
The effects of therapeutic and prophylactic administration of quercetin, epigallocatechin gallate, and grape polyphenolic extract on changes in cholesterol metabolism in the rat blood serum under insulin resistance were studied. The development of atherogenic dislipoproteinemia has been revealed as evidenced by the accumulation of total cholesterol (2.12 times) due to the growth of the content of very low-density lipoprotein cholesterol (1.75 times), the decrease in the concentration of high-density lipoprotein cholesterol (2.6 times), and the increase in the atherogenicity index (8.8 times) in animals on a high-fructose diet. The use of all examined polyphenols in different ways normalized cholesterol metabolism. Grape polyphenolic extract has shown more pronounced protective properties, obviously, due to more diverse composition and, accordingly, mechanisms of insulin resistance correction.