Electroacupuncture Treatment Alleviates the Remifentanil-Induced Hyperalgesia by Regulating the Activities of the Ventral Posterior Lateral Nucleus of the Thalamus Neurons in Rats
Effects of 2 Hz-EA treatment on the activity of VPL LFP in rats that received RF infusion. (a) An example of the LFP and the time-frequency representation in the EA- and mock EA-treated rats on day 3 post-RF infusion. Representatives of 4~100 Hz (left) and 4~8 Hz (right) frequency bands of LFP from the EA- and mock EA-treated rats are shown. The power spectra are normalized. Warm and cool colors indicate the increase and decrease, respectively, in field potential power of VPL LFP. (b) Summary of the power spectral density of theta, alpha, beta, and gamma bands on day 3 after RF infusion in the EA and mock EA groups. Note that 2 Hz-EA treatment abrogates the RF-induced increase in the power spectral density (PSD) of theta band oscillation (4–10 Hz) in rats on day 3 post-RF infusion. versus the corresponding mock EA group, two-way ANOVA followed by the Bonferroni post hoc test, to 5 rats per group.
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