FIG. 3.

Twenty-four hour hair cell survival after neomycin. Fluorescently labeled 5 dpf zebrafish were pretreated with each protective drug for 1 h, followed by treatment with 200 μM neomycin for 1 h. Zebrafish then recovered for 24 h, and then were fixed for hair cell counts. All seven drugs demonstrated significant protection 24 h after the neomycin exposure relative to control + neomycin (**p < 0.01, student t-test). Bars represent mean hair cell survival of 10–15 fish. Error bars = ±1 SD from the mean.