左金丸和反左金对大鼠胃粘膜保护机制的比较研究

[目的]比较左金丸(m黄连：m吴茱萸=6：1)和反左金(m黄连：m吴茱萸＝1：6)对胃分泌和粘液屏障的影响。[方法]采用Shay氏大鼠幽门结扎模型，大鼠分为生理盐水对照组，左金丸1．4g／kg、2．8g／kg组以及反左金1．4g／kg、2.8g／kg组，分别从十二指肠给药，观察各组大鼠的胃分泌和粘液合成的变化。[结果]1．4g／kg、2.8g／kg左金丸和反左金都能抑制胃液分泌、降低总酸排出量及胃蛋白酶活性，且随着剂量增加药效更明显；左金丸和反左金都能增加胃壁结合粘液含量，对胃液中粘液成分也有增加的趋势。[结论]左金丸和反左金可能通过影响胃分泌和粘液合成来保护胃粘膜。

Comparison of Protective Mechanism of Zuojin Pill and Fan Zuojin Pill on Gastric Mucosa

[ Objective] To compare the protective mechanism of Zuojin Pill (Rhizoma Coptidis: Fructus Evodiae = 6:1) and Fan Zuojin Pill (Rhizoma Coptidis: Fructus Evodiae = 1: 6) on gastric secretion and gastric mucosal barrier. [Methods] Pylorus - ligated rat model was applied. Rats were divided into normal saline group, Zuojin Pill groups (1.4 g/kg and 2.8 g/kg) and Fan Zuojin Pill groups (1.4g/kg and 2.8g/kg) and then the drugs were given by duodenal feeding. Gastric secretion and gastric mucus synthesis were examined. [Results] Zuojin Pill and Fan Zuojin Pill (1.4 g/kg and 2.8 g/kg) both inhibited gastric secretion and decreased total acid output and pepsin activity in a dose- effect manner. Zuojin Pill and Fan Zuojin Pill also increased the content of gastric adherent mucus (GAM) and tended to elevate the mucus level in gastric juice. [Conclusion] The preventive mechanism of Zuojin Pill and Fan Zuojin Pill on gastric mucosa may be related to the regulation of gastric secretion and gastric mucus synthesis.