Thirty male Sprague-Dawley rats were divided randomly into four treatment groups : saline , dexamethasone ( dex ) , allopurinol plus saline , and allopurinol plus dex .
O O O B-OrganismTaxon O O O O O O O O O O B-ChemicalEntity O B-ChemicalEntity O O B-ChemicalEntity O O O O B-ChemicalEntity O B-ChemicalEntity O