电针足三里对胃肠功能性疾病作用的研究进展

Effect of electroacupuncture at Zusanli on gastric electric rhythm in functional dyspepsia rats

AIM: To observe the influence of electroacupuncture at Zusanli on gastric electric rhythm in functional dyspepsia rats.

METHODS: Forty-eight SD rats were randomly divided into 4 groups: a blank group, a model group, an electroacupuncture group, and a domperidone group, with 12 rats in each group. Functional dyspepsia in rats was induced by moderately stimulating the tail of the rats. After 10 d of treatment, electrogastrograms were obtained in rats in hungry (30 min per rat).

RESULTS: The dominant frequency, dominant power and the percentage of normal slow waves in rats in the electroacupuncture group and domperidone group were significantly higher than those in the model group (dominant frequency: 59.89 ± 2.930 vs 40.50 ± 2.317, 49.14 ± 3.901 vs 40.50 ± 2.317, P < 0.05 or P < 0.01; dominant power: 0.758 ± 0.101 vs 0.413 ± 0.086, 0.612 ± 0.041 vs 0.413 ± 0.086, P < 0.05 or P < 0.01; percentage of normal slow waves: 66.72 ± 1.573 vs 55.44 ± 2.129, 66.35 ± 1.534 vs 55.44 ± 2.129, P < 0.05 or P < 0.01). The percentage of tachygastria and bradygastria in rats in the electroacupuncture group and domperidone group were significantly lower than those in the model group (percentage of tachygastria: 10.24 ± 0.931 vs 21.07 ± 0.951, 9.853 ± 1.057 vs 21.07 ± 0.951, P < 0.05 or P < 0.01; percentage of bradygastria: 12.41 ± 0.503 vs 14.90 ± 0.572, 12.88 ± 0.302 vs 14.90 ± 0.572, P < 0.05 or P < 0.01).

CONCLUSION: Electroacupuncture at Zusanli could increase the dominant frequency, dominant power and the percentage of normal slow waves, and reduce the percentage of tachygastria and bradygastria in functional dyspepsia rats.