Gastric acid back-diffusion , mucosal LPO generation , histamine concentration , microvascular permeability , luminal hemoglobin content and ulcer areas were determined .
O O O O O B-ChemicalEntity O O B-ChemicalEntity O O O O O B-ChemicalEntity B-GeneOrGeneProduct O O B-DiseaseOrPhenotypicFeature O O O O