to assess how endogenous prostaglandin ( pg ) in gastric mucosa acts against ulcer formation , we determined the mucosal prostacyclin ( pgi2 ) , pge2 , pgf2 alpha , and thromboxane a2 ( txa2 ) concentrations before and after polypectomy in 6 patients in whom gastric ulcers were produced by electric burning resection of gastric polyps .
C0038358
gastric ulcers
C0038351
gastric