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Effects of Microcurrent Stimulation on c-fos and Calcitonin Gene-Related Peptide Expression in the Spinal Cord on Rats Induced Pain  

Kim, Gye-Yeop (College of Oriental Medicine, Dongshin University)
Jeong, Hyun-Woo (College of Oriental Medicine, Dongshin University)
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Journal of Physiology & Pathology in Korean Medicine / v.19, no.1, 2005 , pp. 75-80 More about this Journal
Abstract
The purpose of study is that we will observe the change of c-fos and CGRP with the immunohistochemistry method and then we will study the effect of microcurrent stimulation following the frequency after inducing pain to rats with capsaicin. The experimental groups were divided by microcurrent application and pain induce. Normal control groups is used in experiment I, the group which we induce pain is used in experiment II, the application group which we induce pain and then the high frequency microcurrent stimulation is used in experiment III, the application group which we induce pain and then the low frequency microcurrent stimulation is used in experiment IV. c-fos was strongly expressed after pain induced 2 hours and positive neurons were decreased from 2 hours. At 7 days, positive neuron recovers to normal range, But c-fos positive neuron of microcurrent stimulation group were decreased from 2 hours. CGRP was strongly expressed after pain induced 24 hours, and positive neurons were decreased from 7 days. These results suggests that microcurrent stimulation therapy effect to control pain according to expression of c-fos and CGRP examined by immunohistochemistry. Also high frequency microcurrent stimulation is more effective than low frequency microcurrent stimulation for controling the pain.
Keywords
microcurrent; c-fos; CGRP; spinal cord; pain;
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