Fig. 4.

BPA exposure does not cause precocious neurogenesis in other brain regions. (A) Quantification of neurons born at 24 hpf in the thalamus of larvae exposed to 0.0068 μM BPA at 0–5 dpf. Data are shown as mean ± SEM; P > 0.05 (Student’s t test); n = 3 or 4 fish. (B) Representative immunohistochemistry images of the thalamus of a larval zebrafish exposed to 0.0068 μM BPA at 0–5 dpf and pulsed with EdU at 24 hpf. Mth, mouth; ot, optic tract. (Scale bar: 50 μm.)