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Objective: To observe the Yuyang chip protection acetic acid induced acute gastric mucosal injury in platelet activating factor (plateletactivatingfactor, PAF) expression, and to analyze its possible mechanism of action. Method: ① SD rats were 50 female and male and female, were randomly divided into five groups, that Yuyang-chip high-dose group and low dose group, Smecta group, saline group, blank group; advance to SD rats high dose 44.76g / (kg · d) with a low dose of 14.92 g / (kg · d) two different concentrations gavage Yuyang piece suspension, group smecta. 3.0g / (kg · d) the concentration fed Smectite reached, the saline and control groups to normal saline; gavage for one week using modified Okabe acetate smearing modeling, sham-operated control group, only saline instead of acetic acid injected into the glass tube. ② modeling 7 hours and 7 days in each group were sacrificed half the rats, take the rat gastric mucosa, the naked eye damage. ③ take gastric ulcer tissue sliced ??HE and PAS staining by immunohistochemistry ABC method to detect rat gastric mucosa PAF and quantitative determination of the expression with an optical microscope and do statistically. Results: seven hours after modeling, Yuyang piece regardless of the high dose and low dose, the ulcer index of gastric mucosal injury were lower than the the Smectite group and the saline group (P <0.05) and smecta group and Physiological saline group showed no significant difference (P> 0.05); ulcer index in rats 7 days after treatment, the drug group than in the saline group decreased significantly (P <0.05), before and after treatment, there were significant difference in the Chinese medicine group and western group (P <0.05), the Yuyang piece, no significant difference (P> 0.05) between the low-dose group. Acetic acid induced ulcer model in rats PAF ulcer tissue expression was no significant difference (P> 0.05). Conclusion: Yuyang Jianzhong Yuyang Tablets on acetic acid-induced gastric ulcer prevention and treatment, and its therapeutic effect on the dose tablets suspension to reduce the acetic acid induced ulcers in rats ulcer index, suggesting dependent on the protection and repair damage from the rat gastric mucosa; acetic acid induced ulcer model in rats PAF ulcer tissue expression was no significant difference (P> 0.05). Spleen and replenishing qi Yuyang piece represented on the protection and repair of gastric mucosal injury have a positive role, with good clinical application value.
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