AIM: Using Toll-like receptor 4 gene knockout( tlr4~(-/-)) mice and the wild-type( WT) mice with the same C57BL/10 J genetic background,the effects of HU210,a cannabis preparation,on caerulein( CAE)-induced acute pancreatitis( AP) and the potential mechanisms were investigated. METHODS: WT or tlr4~(-/-)mice were randomly divided into AP group,AP + HU210 group and control group. AP was induced by intraperitoneal injection of CAE( 50μg·kg~(-1)·h~(-1)) for a total of 6 times and lipopolysaccharide( LPS) at 10 ...