弱激光对大鼠胃运动的调节及其作用途径分析

采用成年Ｗｉｓｔａｒ雄性大鼠，应用Ｒａｙｂｏｕｌｄ法测定了弱激光照射足三里穴对大鼠胃运动的调节作用，实验结果为：（１）弱激光照射足三里穴对大鼠胃内压及胃收缩频率均有明显升高作用；（２）腹腔预先注射酚托拉明，部分抑制了弱激光效应；（３）腹腔预先注射心得安，显著地抑制了弱激光的升压及升频作用，并使胃内压及胃收缩频率低于单纯心得安的效应值；（４）腹腔预选注射纳洛酮，部分抑制了弱激光的效应；（５）腹腔预先

Modulation and Its Mechanism of Low Power Laser on Gastric Motility in Rat

The effect and its mechanism of low power laser irradition of zusanli on gastric motility in rat were studied. The rusults were as follows: Laser irradition of zusanli increased the intragastric pressure and the contraction frequency of gastric motility markedly. Abdominal cavity preinjection of regitina inhibited the increased effect of laser on intragastric pressure and the contraction frequency of gastric motility partially. Abdominal cavity preinjection of naloxon also inhibited the increased effect of laser on intragastric pressure and the contraction frequency of gastric motility partially. Abdominal cavity preinjection of diphenhydramine inhibited the increased intergastric pressure of laser weakly; and inhibited the increased contraction frequency of gastric motility by laser partially. Abdominal cavity preinjection of propranolol blocked the effect of laser completely, and the intragastric pressure and gastric contraction freqency were lower than that of the single effect of propranolol. Abdominal cavity preinjection of atropine blocked the effect of laser completely also, and the intragastric pressure and gastric contraction frequency were lower than that of the single effect of atropine. It is concluded that the stimulated effect of low power laser on gastric motility was closely related to nervous system. The neurotransmitters and its receptors of NE, Opiod, Ach, Histimine etc in the entreric nervous system participated this effect of laser.