Electroacupuncture Involved in Motor Cortex and Hypoglossal Neural Control to Improve Voluntary Swallowing of Poststroke Dysphagia Mice

Figure 4

Motor conduction velocity of hypoglossal nerve. (a) Stimulation electrode: hypoglossal nerve trunk; recording electrode: mylohyoid muscle; the distance between nerve trunk and muscle: ; the latency between stimulation point and the first EMG evoked by mylohyoid muscle: ; MCV: . (b–f) The latency between the stimulation point and the first induced EMG (marked with an asterisk) in each group. Model: PSD; sham EA: acupuncture without electric; EA acute: EA for 1 day; EA chronic: EA for 3 days. MCV was detected after treatment in each group. (g) Difference of latency in each group. Compared with the normal, the model increased significantly (); compared with the model, EA (acute) and EA (chronic) have obviously decreased (^##). (h) Difference of MNCV in each group. Compared with the normal, the model increased significantly (^##); compared with the model, EA (acute) and EA (chronic) have obviously decreased ().