期刊
EVIDENCE-BASED COMPLEMENTARY AND ALTERNATIVE MEDICINE
卷 2013, 期 -, 页码 -出版社
HINDAWI LTD
DOI: 10.1155/2013/160357
关键词
-
资金
- National Basic Research Program of the Ministry of Science and Technology of China [2013CB531905]
- Ministry of Education of China [109003]
- 111 Project of the Ministry of Education of China [B07001]
The present study aimed to investigate how ongoing brain rhythmical oscillations changed during the postoperative pain and whether electroacupuncture (EA) regulated these brain oscillations when it relieved pain. We established a postincisional pain model of rats with plantar incision to mimic the clinical pathological pain state, tested the analgesic effects of EA, and recorded electroencephalography (EEG) activities before and after the EA application. By analysis of power spectrum and bicoherence of EEG, we found that in rats with postincisional pain, ongoing activities at the delta-frequency band decreased, while activities at theta-, alpha-, and beta-frequency bands increased. EA treatment on these postincisional pain rats decreased the power at high-frequency bands especially at the beta-frequency band and reversed the enhancement of the cross-frequency coupling strength between the beta band and low-frequency bands. After searching for the PubMed, our study is the first time to describe that brain oscillations are correlated with the processing of spontaneous pain information in postincisional pain model of rats, and EA could regulate these brain rhythmical frequency oscillations, including the power and cross-frequency couplings.
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