Ali, Muhammad S Ursolic acid: a potent inhibitor of superoxides produced in the cellular system. [electronic resource] - Phytotherapy research : PTR Jun 2007 - 558-61 p. digital Publication Type: Journal Article; Research Support, Non-U.S. Gov't ISSN: 0951-418X Standard No.: 10.1002/ptr.2108 doi Subjects--Topical Terms: Cells, CulturedDose-Response Relationship, DrugFree Radical Scavengers--chemistryHumansLamiaceae--chemistryMolecular StructureNeutrophils--cytologyRespiratory Burst--drug effectsSuperoxides--antagonists & inhibitorsTriterpenes--chemistryXanthine Oxidase--metabolismUrsolic Acid