ANTIOXIDANT ACTIVITY OF A DIHYDROQUERCETIN ISOLATED FROM LARIX GMELINII (RUPR) RUPR WOOD

We have demonstrated that dihydroquercetin is an antioxidant and posse sses the properties of protecting capillaries, which is consistent wit h its action as an antiinflammatory agent, gastro- and hepatoprotectin g agent, and its diuretic and hypolipidaemic activity, As a capillary protector, dihydroquercetin is 3.4 times more effective at a dose of 1 00 mg/kg and 4.9 times at a dose of 300 mg/kg than the well known biof lavonoid, quercetin. Dihydroquercetin shows a dose dependent suppressi on of lipid peroxidation in the rat liver, The hypolipidaemic activity of dihydroquercetin at 250 mg/kg is comparable to that of polysponin.