Fig. 4

Fig. 4 Fig. 4. Western blot analyses of TTR protein levels in larvae after exposure to TBBPA (0, 50, 100, and 200 μg/L) alone or in combination with n-SiO₂ (25 mg/L) for 120 h. (A) Representative Western blots of TTR; (B) Quantification of the relative repression of TTR. Results are expressed as mean ± SEM of three replicate samples. *P < 0.05, **P < 0.01, and***P < 0.001 indicates significant differences between exposure groups and the control group, and #P < 0.05, ##P < 0.01 represents significant differences between TBBPA groups and their corresponding co-exposure groups with n-SiO₂.