Effect of Electroacupuncture on Noise-Induced Hearing Loss in Rats

Figure 2

Effect of electroacupuncture at right TE3 on auditory threshold shift of auditory brain stem response in rats with noise-induced hearing loss. Auditory threshold shift of the auditory brain stem response was observed in the noise, pre-EA, and post-EA groups in the immediate period after noise stimulation, whereas this shift was greatly reduced in the pre-EA and post-EA group at D3, W1, W2, W3, and W4. No prominent auditory threshold shift was found in the control and EA-only groups. At W3 and W4, the auditory threshold shift was similar in the control, EA-only, pre-EA, and post-EA groups in the click and 2, 4, and 8 KHz tone burst stimulation. , control vs. noise; , , control vs. post-EA; , , control vs. pre-EA; , , noise vs. pre-EA; , , noise vs. post-EA; pre-EA vs. post-EA.