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. 2019 Apr 5;24(7):1344. doi: 10.3390/molecules24071344

Figure 1.

Figure 1

The four graphs depict the effects of noise exposure on the hearing threshold. Mean ABR thresholds in response to click stimuli are displayed for the control group (n = 6; upper left), the RES-treated group (n = 6; upper right), the CIT-treated group (n = 6; lower left), and the NE group (n = 6; lower right) before and after exposure to narrowband noise (8 kHz, 116 dB) for 3.5 h. After noise exposure, a permanent hearing loss of approximately 50 dB SPL was seen in the NE and the drug-treated groups during the following 4 weeks. * p < 0.05, ** p < 0.01 and *** p < 0.001 versus the control group. (ABR: auditory brainstem response, CIT: citalopram, RES: resveratrol, NE: noise exposure).