Relative expression of six genes in zebrafish embryos exposed to ZnO NPs and ZnSO₄ for 96 hpf.

<p>Values are presented as means ± SEM (<i>n</i> = 3). Significant differences among treatment groups are denoted by different letter labels (one-way ANOVA, followed by a <i>post hoc</i> test: Tukey’s (<i>cyb5d1</i>, <i>intl2</i> and <i>ogfrl2</i>) and LSD (<i>aicda</i>, <i>edar</i>, and <i>tnfsf13b</i>), <i>p</i> < 0.05).