Qian Yun, Si Jian-Min, Wang Liang-Jing, Chen Shu-Jie, Zhu You-Fa
Gastroenterology Laboratory of Sir Run Run Shaw Clinic Medical Center, Zhejiang University, Hangzhou 310016, China.
Zhongguo Zhong Yao Za Zhi. 2004 Aug;29(8):781-5.
To explore the mechanisms of muscovite gastric mucosal protective effect.
Rat model of chronic gastritis were used. After gastric mucosal injury was induced, the rats were divided into 6 groups and were treated with different drugs. 2 weeks later, the tissue and blood samples were obtained and measured.
The general conditions, the observations under macroscopy, microscope and electron microscope of the middle and high dose of muscovite groups resembled those of the normal group. Their PH levels were higher than those of the model group, and the rates of intestinal metaplasia were lower, but the PGE2 level of the middle dose of muscovite group was the highest.
Muscovite can be adsorbed on the surface of the gastric mucosa. It has gastric mucosal protective effect by improving excretion of mucus and synthesis of PGE2 in gastric mucosa, restraining gastric acid, reversing of intestinal metaplasia and decreasing inflammation cells.
探讨云母对胃黏膜保护作用的机制。
采用大鼠慢性胃炎模型。诱导胃黏膜损伤后,将大鼠分为6组,分别给予不同药物治疗。2周后,获取组织和血液样本并进行检测。
中、高剂量云母组的一般情况、大体、显微镜及电子显微镜观察结果与正常组相似。其pH值高于模型组,肠化生率低于模型组,但中剂量云母组的PGE2水平最高。
云母可吸附于胃黏膜表面,通过改善胃黏膜黏液分泌及PGE2合成、抑制胃酸、逆转肠化生及减少炎症细胞等发挥胃黏膜保护作用。