Xanthine oxidase inhibiting compounds from Ranunculus repens.

The article reports on the study which extracts and isolates xanthine oxidase inhibiting compounds from Ranunculus repens L. collected from Natia Gali, Hazara Hills in North-West Frontier Province, Pakistan. Xanthine oxidase catalyzes the hydroxylation of purines such as the conversion of the compound to uric acid and the reduction of oxygen. It employed xanthine oxidase inhibition assay which revealed that compounds with more phenolic and methoxy moieties are the most active inhibitors.