Representative SEM pictures and ABR thresholds obtained from cochleae treated with the Atoh1 gene one month after noise deafening.

<p><i>A, B:</i> SEM images obtained from basal and middle turns. The reticular lamina was flat with no sign of stereocilia. Bars represent 10 µm. <i>C:</i> ABR thresholds (means ± SD, n = 4) measured from control and Atoh1-treated ears one month after the treatment.