CAJ | 학술논문

目的：观察电针足三里穴对失血性休克大鼠肠胶质细胞形态的影响,探讨电针足三里穴治疗胃肠疾病的机制。方法：将18只 SD雄性大鼠随机分为假手术组、模型组和电针组,每组6只。按总血容量的45%放血制备失血性休克模型。电针组于制模完成后10 min电针足三里穴(持续刺激1.5 h,2~100 Hz,2 mA)；模型组同样方法电针非经非穴；假手术组只分离股动、静脉不放血。失血后6h 后处死大鼠,取肠道组织制作肠肌间神经丛全层铺片,采用免疫荧光法进行肠胶质纤维酸性蛋白(GFAP)染色,荧光显微镜下观察肠胶质细胞形态,同时对肠道GFAP蛋白含量进行Western Blot测定。结果：失血后6 h,肠胶质细胞出现形态学异常,细胞变形并且荧光增强,突触模糊、中断；电针足三里穴能减轻肠胶质细胞形态学异常,增加荧光强度。与假手术组相比,模型组GFAP表达量增加,但电针足三里穴后 GFAP的表达量增加更为显著(P<0.05)。结论：大鼠失血性休克后电针足三里穴能激活并保护肠胶质细胞。
목적：관찰전침족삼리혈대실혈성휴극대서장효질세포형태적영향,탐토전침족삼리혈치료위장질병적궤제。방법：장18지 SD웅성대서수궤분위가수술조、모형조화전침조,매조6지。안총혈용량적45%방혈제비실혈성휴극모형。전침조우제모완성후10 min전침족삼리혈(지속자격1.5 h,2~100 Hz,2 mA)；모형조동양방법전침비경비혈；가수술조지분리고동、정맥불방혈。실혈후6h 후처사대서,취장도조직제작장기간신경총전층포편,채용면역형광법진행장효질섬유산성단백(GFAP)염색,형광현미경하관찰장효질세포형태,동시대장도GFAP단백함량진행Western Blot측정。결과：실혈후6 h,장효질세포출현형태학이상,세포변형병차형광증강,돌촉모호、중단；전침족삼리혈능감경장효질세포형태학이상,증가형광강도。여가수술조상비,모형조GFAP표체량증가,단전침족삼리혈후 GFAP적표체량증가경위현저(P<0.05)。결론：대서실혈성휴극후전침족삼리혈능격활병보호장효질세포。
Objective:To investigate the effects of electro-acupuncture of Zusanli point (足三里穴)on enteric glial cells of the rats after hemorrhagic shock,and inquire into the mechanism of electro-acupuncture of Zusanli points in treating gastrointestinal disease. Methods:Eighteen male SD rats were randomly divided into three groups (n=6):sham operation group,model group,and electro-acupuncture group. Hemorrhagic shock was replicated by withdrawing 45% of the calculated total blood volume. Rats in electro-acupuncture group received electro-acu-puncture at Zusanli points (ST36)10 minutes after blood loss (electro-acupunctured for 1.5 hours,2-100 Hz, 2 mA). Electro-acupuncture at non-channel acupoints was performed in rats of model group. Rats in sham opera-tion group did not suffer from blood loss. Six hours after hemorrhage,animals were sacrificed,and distal small in-testine was harvested to prepare whole mount slide of myenteric plexuses. Morphological changes in enteric glial cells (EGCs)were observed with immunofluorescence staining of glial fibrillary acidic protein (GFAP),and the quantity of GFAP was also determined by Western blotting. Results:Six hours after hemorrhage,morphological abnormalities including disfigurement of EGCs with stronger fluorescence were observed. The synapses of EGCs were distorted and became blurred or even discontinued. Electro-acupuncture at ST3 6 was found to attenuate mor-phological changes in EGCs,and enhance the fluorescence. Comparing with the group of sham operation,the ex-pression of GFAP was enhanced in rats of model group,while GFAP expression was even significantly higher after electro-acupuncture at ST36 (P<0.05). Conclusions:Electroacupuncture at ST36 can activate and protect the EGCs in rats with hemorrhagic shock.