At the modeling of diabetes mellitus type II (DM-II) in rats with the protamine the increase of malonic dialdehyde (MDA) concentration and decrease in catalase activity were shown in the blood serum and the liver tissue.
The introduction of quercetin granules of (100 mg/kg) has reduced the glucose level, MDA content and raised the catalase activity in the blood serum. The same took place in liver tissue.
The findings are evidence of hypoglycemic and hepatoprotective effect of quercetin, the main role in which is its antioxidant effect.