Effects of Electroacupuncture at “Shangjuxu” (ST37) and “Zusanli” (ST36) on Intestinal Motility and Morphology of Enteric Glial Cells in Model Rats with Yangming Fu-viscera Excess Syndrome
XU Ying, XIE Mingzheng, QI Qinghui, et al. Effects of Electroacupuncture at “Shangjuxu” (ST37) and “Zusanli” (ST36) on Intestinal Motility and Morphology of Enteric Glial Cells in Model Rats with Yangming Fu-viscera Excess Syndrome[J]. Journal of Traditional Chinese Medicine2020, 61(23): 2098-2101.
XU Ying, XIE Mingzheng, QI Qinghui, et al. Effects of Electroacupuncture at “Shangjuxu” (ST37) and “Zusanli” (ST36) on Intestinal Motility and Morphology of Enteric Glial Cells in Model Rats with Yangming Fu-viscera Excess Syndrome[J]. Journal of Traditional Chinese Medicine2020, 61(23): 2098-2101.DOI: 10.13288/j.11-2166/r.2020.23.016.
Objective To investigate the effects and mechanism of electroacupuncture on Zusanli(ST36) and Shangjuxu(ST37) on intestinal motility of Yangming fu-viscera excess syndrome. Methods A total of 60 Wistar rats were randomly divided into a control group
a model group and an electro-acupuncture group
with 20 rats in each group. The model group and the electro-acupuncture group were continuously administrated with Chinese drugs of heat nature for 12 days. On the 13 th and 14 th day
the self-fecal suspension was intragastrically administered
and the E. coli bacterial liquid was injected intraperitoneally on the 15 th day to establish a rat model of Yangming Fu-viscera excess syndrome; for the control group
the equal amount of normal saline was intragastrically and intraperitoneally injected. The rats in the electroacupuncture group were electro-acupunctured at bilateral"Zusanli(ST36)" and "Shangjuxu(ST37)" every day
30 minutes each time for 5 days after the successful modeling; the control group and the model group were only bound and fixed without intervention. After the intervention was completed
the frequency and amplitude of myoelectric slow wave in the upper small intestine of rats are detected to assess the changes in small intestine motor function; the upper small intestine tissue samples were taken for HE staining to observe the pathological damage of the small intestine; the enteric glial cells were observed by immunofluorescence confocal microscope and transmission electron microscope changes in morphology and ultrastructure. Results Compared with the control group
the small intestine slow wave frequency and amplitude of rats in the model group were slowed down(P<0.05 or P<0.01); small intestine pathological damage was obvious
enteric glial cell morphology was abnormal
network structure disorder
fluorescence intensity OD value decreased(P<0.05)
transmission electron microscope observation showed enteric glial cell chromatin aggregation
uneven distribution
mitochondria swelling; in the electroacupuncture group
the small intestinal slow wave frequency increased
the amplitude increased(P<0.05)
and the small intestine pathological damage and enteric glial cells and network structure damage were reduced
the fluorescence intensity OD value increased(P<0.05)
and enteric glial cell ultrastructure damage was improved. Conclusion Electro-acupuncture "Shangjuxu(ST36)" and "Zusanli(ST37)" can promote the recovery of small intestine motor function in Yangming Fu-viscera excess syndrome rats
and the mechanism may be related to repairing the damage of enteric glial cell network.