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Electroacupuncture and transcutaneous electrical acupoint stimulation with different intensities relieve muscular of inflammatory pain of the rats
Ist Teil von
Zhēncì yánjiū, 2020-11, Vol.45 (11), p.902
Ort / Verlag
China
Erscheinungsjahr
2020
Link zum Volltext
Quelle
MEDLINE
Beschreibungen/Notizen
To observe and compare the ameliorate effects of electroacupuncture (EA) and transcutaneous electrical acupoint stimulation (TEAS) with different intensities on inflammatory muscle pain, so as to confirm the role of different afferent nerve fibers in different layers (skin or muscle) in pain relief of acupuncture.
The intensities of the thresholds of A (Ta) and C (Tc) were selected for TEAS and EA. TEAS and EA were applied on the layer of skin and muscle of "Liangqiu" (ST34), respectively. Forty-eight rats were randomly divided into control, model, TEAS-Ta, TEAS-Tc, EA-Ta and EA-Tc groups (
=8 in each group). The inflammatory muscle pain model was established by complete Freund's adjuvant (CFA) injection into the right biceps femoris muscle. EA or TEAS was applied once a day for 3 days. The weight difference between the hind limbs and the abnormal electromyography (EMG) activities were observed as an index for pain of the rats.
After modeling, the weight difference between the hind limbs was increased markedl