
Keywords: COX-2; cyclo-oxygenase-2; 5-FU; 5-fluorouracil; HE; hematoxylin and eosin; HQT; Huangqin Tang; HQTL; low dose of HQT extract with 1Â g/kg; HQTM; medium dose of HQT extract with 2Â g/kg; HQTH; high dose of HQT extract with 4Â g/kg; IBD; inflammatory bowel