Experimental research of electroacupuncture analgesia on visceral pain in rats

Objective To explore the effect of electroacupuncture on the visceral pain in rats.Methods Rats were randomly divided into the Con group,Con+EA group,VP group and VP+EA group,n=8.40 μL 5% formalin solution was injected into the rat colon to establish a visceral pain model.Electric acupuncture at Zusanli,V Rabbit point was given in advance of model establishment,with strength of rats subject to whiskers jitter but does not struggle.Visceral pain score was calculated.Results VP rats immediately appeared visceral pain behaviors after the injection of formalin,whereas,in VP+EA groups,visceral pain behaviors was delayed,as well as pain significantly decreased(P0.05).Conclusion Electroacupuncture has the analgesic effect on visceral pain in rats.