brsk2ab−/− zebrafish displayed escalating anxiety-like behaviors. (A) The analytical paradigm showed that the open field tank was divided into two equal zones, and the thigmotaxis was calculated using the time and distance ratio that fish spent in the peripheral zone. (B) There was no significant difference in the thigmotaxis index between WT and brska2b−/− zebrafish at 2 mpf (WT vs. brsk2ab−/−, n = 20: 27, distance: 0.7737 ± 0.14 vs. 0.8376 ± 0.16, p = 0.1622; time: 0.8245 ± 0.13 vs. 0.8712 ± 0.15, p = 0.2225). (C) The thigmotaxis of brsk2ab−/− zebrafish was observed to have increased more than that of WT zebrafish at 3 mpf (WT vs. brsk2ab−/−, n = 27: 22, distance: 0.8522 ± 0.05 vs. 0.9274 ± 0.05, p < 0.0001; time: 0.8934 ± 0.05 vs. 0.9389 ± 0.06, p = 0.0038). Data are shown as mean ± SEM s, ** p < 0.01, **** p < 0.0001.
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Full text @ Int. J. Mol. Sci.
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