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[Effects of three Chinese traditional drugs on afferent discharge from single muscle spindle in toads]
Objective:
To shed some light on treatment of muscle atrophy through testing the effects of several Chinese traditional drugs that can invigorate blood circulation on the afferent discharge of muscle spindle.
Method:
Single muscle spindle was isolated from sartorius muscle of toad. Afferent discharge from the muscle spindle was recorded using air-gap technique and effects of three Chinese traditional drugs on afferent activity of the muscle spindle were observed.
Result:
Ligustrazine could markedly tingle the spontaneous electrical activity of the muscle spindle, and it also showed a good dose-response relationship, while Salvia Miltiorrhiza and Safflower had no such excitative effect.
Conclusion:
It is known that ligustrazine can expand blood vessels and agitate microcirculation, and this effect on the muscle spindle makes it helpful for persons with muscle atrophy.

