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Effect of Quercetin 3-O-β-(2"-galloyl) rhamnopyranoside (QGR) on nitric oxide (NO) production in serum. Lipopolysaccharide (LPS) induced an approximately 6 fold increase in NO when compared to controls. Pretreatment of QGR attenuated approximately 50% of the LPS induced increase in NO. *Significantly different from control (p < 0.05).
