[The effect of electric acupuncture on SEP of local cerebral ischemic-reperfusion rats].
The results suggest that 3 hours after cerebral ischemia, the P1-N1 amplitudes of the somatosensory evoked potential (SEP) of the cerebral cortex decrease significantly by the stimulation of cerebrum, while the latency period of both wave P1 and P2 prolonged; 2 hours later, the abnormal data of SEP have not any improvement. These suggest that the post-ischemic cortex and subcortical neurons were injured permanently by a substantial lesions from reperfusional injuries. Cerebral tissue histologic studies show that the infarcted focus locates in caudate nucleus and lateral cortex of cerebral hemisphere. But after electric acupuncture at Huantiao at the late stage of cerebral ischemia of rats, the abnormal data of SEP show better recoveries and manintains till 2 hours after reperfusion, and even near to that of the normal rat. All of them suggest acupuncture is effective obviously for ischemic injury of cerebral tissue, and possesses a presetting protection for reperfusional injury of cerebral tissue. So it is concluded that the efficacy of acupuncture results from its comprehensive and optimal regulation function to multisystem of the whole body.
Chen
Z
Z
Beijing College of Acupuncture and Orthopedics.
Geng
Z
Z
Zhang
J
J
Zhao
Y
Y
Gao
Y
Y
Zhang
X
X
D000818:Animals; D002545:Brain Ischemia / Q000503:physiopathology / Q000628:therapy*; D015671:Electroacupuncture; D005073:Evoked Potentials, Somatosensory / Q000502:physiology*; D008297:Male; D051381:Rats; D017208:Rats, Wistar; D015427:Reperfusion Injury / Q000503:physiopathology / Q000628:therapy*