S (Statistical Algorithms) GCOS (Affymetrix GeneChip Operating Software) Version 1.4. The differentially expressed genes were identified using SAM (Significant Analysis of Microarray) software, and selected on the basis of their fold changes (.2-fold) as compared to the control specimens.Treatment of the Isolated Rat StomachThe isolated stomach was vascularly perfused with modified Krebs-Ringer CASIN web solution for 30 min equilibration before the formal experiments. The perfusion was then carried out sequentially with three fluids and each fluid for 20 minutes, totaling 60 minutes. The control group got: 1) Krebs-Ringer solution, 2) serum from normalCannabinoid HU210; Protective Effect on Rat Stomachcontrol rats, 3) Krebs-Ringer solution. The AP group got: 1) Krebs-Ringer solution, 2) serum from AP rats, 3) Krebs-Ringer solution. The group of AP+HU got: 1) Krebs-Ringer solution+HU210 (1027M), 2) AP serum+HU210 (1027M), 3) KrebsRinger solution. And the group of AP+AM got: 1) Krebs-Ringer solution+AM251 (1027M), 2) AP serum+AM251(1027M), 3) Krebs-Ringer solution. The gastric lumen of the isolated stomach was perfused with normal saline (pH 7.0). All perfusion fluids ran at a constant rate of 1 ml/min by using micro-infusion pumps. Meanwhile, the solutions and the isolated organs were kept at 37uC by thermostatically controlled units throughout the experiment. The samples from venous effluent or from gastric lumen effluent were collected, at the end of every 20 minutes, into chilled test tubes that were immediately SIS-3 chemical information stored at ?0uC for subsequent measuring experiments.Toledo Inc. Zurich, Switzerland) and the readings were then converted to [H+].Solutions and ChemicalsHU210 [(6aR)-trans-3-(1,1-Dimethylheptyl)-6a,7,10,10a-tetrahydro-1-hydroxy-6,6-dimethyl -6H-dibenzo[b,d]pyran-9-methanol], AM251 23115181 [(N-(Piperidin-1-yl)-5-(4-iodophenyl)-1- (2,4-dichlorophenyl)- 4-methyl-1H-pyrazole-3-carboxamide)], were purchased from Tocris (Tocris-Bioscience, Ellisville, MO, USA). Both chemicals were dissolved in a solvent consisted of ethanol, Tween80 and normal saline (NS), volume ratio 1:1:18, to concentration 1022M, at 37uC using an ultrasonicator, and then were further diluted in NS to 1025 M, and again to 1027M with perfusion fluid just before use under the conditions that were determined in pilot study [22]. The modified Krebs-Ringer solution was composed of 117.5 mM NaCl, 4.7 mM KCl, 2.4 mM CaCl2, 1.1 mM MgCl2, 1.1 mM NaH2PO4, 25 mM NaHCO3, 11.1 mM glucose, 0.05 of bovine serum albumin, and 4 dextran. Other agents, if sources were not mentioned above, were purchased from Sigma (Shanghai, China).Amylase and Lipopolysaccharide LevelsThe assays of amylase and lipopolysaccharide (LPS) levels in the serum from AP or control rats were performed based on the manufacturer recommended procedures (Cat. No: C016 for amylase assay kit, Jiancheng Technology, Nanjing, China; and Cat. No: CE32545 for LPS assay kit, Chinese Horseshoe Crab Reagent Co. Ltd., Xiamen, China).Data AnalysisAll data are expressed as mean 6 SEM. Student’s t-test or single factor analysis of variance (ANOVA) was performed using the SPSS 13.0 software (SPSS Co. Ltd., Shanghai, China). P-values of ,0.05 were considered statistically significant.Assays for Inflammatory MediatorsThe levels of interleukin-6 (IL-6) 
and cytokine-induced neutrophil chemoattractant 1 (CINC1/KC) in the serum of rat and in the venous effluent from the isolated rat stomach were quantified using the rat IL-6 and KC ELISA kits base.S (Statistical Algorithms) GCOS (Affymetrix GeneChip Operating Software) Version 1.4. The differentially expressed genes were identified using SAM (Significant Analysis of Microarray) software, and selected on the basis of their fold changes (.2-fold) as compared to the control specimens.Treatment of the Isolated Rat StomachThe isolated stomach was vascularly perfused with modified Krebs-Ringer solution for 30 min equilibration before the formal experiments. The perfusion was then carried out sequentially with three fluids and each fluid for 20 minutes, totaling 60 minutes. The control group got: 1) Krebs-Ringer solution, 2) serum from normalCannabinoid HU210; Protective Effect on Rat Stomachcontrol rats, 3) Krebs-Ringer solution. The AP group got: 1) Krebs-Ringer solution, 2) serum from AP rats, 3) Krebs-Ringer solution. The group of AP+HU got: 1) Krebs-Ringer solution+HU210 (1027M), 2) AP serum+HU210 (1027M), 3) KrebsRinger solution. And the group of AP+AM got: 1) Krebs-Ringer solution+AM251 (1027M), 2) AP serum+AM251(1027M), 3) Krebs-Ringer solution. The gastric lumen of the isolated stomach was perfused with normal saline (pH 7.0). All perfusion fluids ran at a constant rate of 1 ml/min by using micro-infusion pumps. Meanwhile, the solutions and the isolated organs were kept at 37uC by thermostatically controlled units throughout the experiment. The samples from venous effluent or from gastric lumen effluent were collected, at the end of every 20 minutes, into chilled test tubes that were immediately stored at ?0uC for subsequent measuring experiments.Toledo Inc. Zurich, Switzerland) and the readings were then converted to [H+].Solutions and ChemicalsHU210 [(6aR)-trans-3-(1,1-Dimethylheptyl)-6a,7,10,10a-tetrahydro-1-hydroxy-6,6-dimethyl -6H-dibenzo[b,d]pyran-9-methanol], AM251 23115181 [(N-(Piperidin-1-yl)-5-(4-iodophenyl)-1- (2,4-dichlorophenyl)- 4-methyl-1H-pyrazole-3-carboxamide)], were purchased from Tocris (Tocris-Bioscience, Ellisville, MO, USA). Both chemicals were dissolved in a solvent consisted of ethanol, Tween80 and normal saline (NS), volume ratio 1:1:18, to concentration 1022M, at 37uC using an ultrasonicator, and then were further diluted in NS to 1025 M, and again to 1027M with perfusion fluid just before use under the conditions that were determined in pilot study [22]. The modified Krebs-Ringer solution was composed of 117.5 mM NaCl, 4.7 mM KCl, 2.4 mM CaCl2, 1.1 mM MgCl2, 1.1 mM NaH2PO4, 25 mM NaHCO3, 11.1 mM glucose, 0.05 of bovine serum albumin, and 4 dextran. Other agents, if sources were not mentioned above, were purchased from Sigma (Shanghai, China).Amylase and Lipopolysaccharide LevelsThe assays of amylase and lipopolysaccharide (LPS) levels in the serum from AP or control rats were performed based on the manufacturer recommended procedures (Cat. No: C016 for amylase assay kit, Jiancheng Technology, Nanjing, China; 
and Cat. No: CE32545 for LPS assay kit, Chinese Horseshoe Crab Reagent Co. Ltd., Xiamen, China).Data AnalysisAll data are expressed as mean 6 SEM. Student’s t-test or single factor analysis of variance (ANOVA) was performed using the SPSS 13.0 software (SPSS Co. Ltd., Shanghai, China). P-values of ,0.05 were considered statistically significant.Assays for Inflammatory MediatorsThe levels of interleukin-6 (IL-6) and cytokine-induced neutrophil chemoattractant 1 (CINC1/KC) in the serum of rat and in the venous effluent from the isolated rat stomach were quantified using the rat IL-6 and KC ELISA kits base.
