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To analyze the effect of vitamin C treatment on hepatic and muscular lipoperoxidation, as well as on biochemical parameters of C57BL / 6 mice submitted to the cafeteria diet for nine weeks. Seventeen mice of the C57BL / 6 lineage, two months old, were allocated to three groups: 1) Control, 2) Cafeteria and 3) Cafeteria + Vitamin C. The biological assay was conducted for nine weeks, the animals were kept in fasting for 12 hours and after being sacrificed, blood and tissues were collected for biochemical dosages. From the samples of liver and muscle, the contents of thiobarbituric acid reactive species (TBARS) and total lipids were quantified. The livers of mice fed with a diet of coffee or not treated with vitamin C showed higher levels of TBARS compared to controls (p <0.05). The muscle TBARS content was higher in the mice of the Cafeteria + Vitamin C group compared to that found for the Cafeteria and Control animals (p <0.05). The concentrations of hepatic and muscular cholesterol were higher in the Cafeteria + Vitamin C group compared to the Control and Cafeteria groups (p <0.05). Treatment with vitamin C increased muscle lipoperoxidation, but did not influence this parameter in the liver of C57BL 6 mice fed with cafeteria diet. In addition, vitamin C increased cholesterol concentration in liver and muscle tissues, but did not change serum glycemia and serum lipids after nine weeks of treatment.

Influência da vitamina C na lipoperoxidação hepática e muscular de camundongos C57BL/6 submetidos à dieta de cafeteria