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Fig. 1 BG pretreatment alleviates E. piscicida infection-induced enteritis in zebrafish. (A) Schematic model of BG-pretreatment and E. piscicida infection in zebrafish. (B) Histological analysis of posterior intestines in PBS- and BG-pretreated zebrafish during E. piscicida infection. Scale bar, 50 μm. (C) Histological index of zebrafish posterior intestines. (D) Statistical analysis of the histological score as indicated in panel B. (E) Transcriptional expression of tight junction protein-encode genes in posterior intestines of PBS- and BG-pretreated zebrafish during E. piscicida infection. Data are replicated with three independent experiments and shown as mean ± SD by a two-way ANOVA with multiple comparisons. ∗p < 0.05, ∗∗p < 0.01, ∗∗∗p < 0.001, ∗∗∗∗p < 0.0001; ns, not significant.