Original Article

Endogenous Opiates in the Nucleus Tractus Solitarius Mediate Electroacupuncture-Induced Sleep Activities in Rats

Figure 4

The effects of scopolamine on the 10 Hz EA stimuli-induced increase of -endorphin. The 10 Hz EA stimuli significantly increased the expressions of -endorphin in the brainstem and hippocampus and administration of scopolamine blocked EA-induced increases of -endorphin concentration. *Represents a statistically significant difference between the values obtained from ipketamine PFS EA and ipketamine PFS sham EA. #Depicts a statistically significant difference between the values obtained from ipketamine scopolamine EA and ipketamine PFS EA.
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