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La exposure impaired the synaptic structure of hippocampal neurons and increased neuronal apoptosis in the offspring of treated rats. (a) H&E staining (scale bar = 50 μm); (b) TUNEL assay of the hippocampus (scale bar = 50 μm); (c) quantification of the TUNEL assay in the hippocampus; (d) TUNEL assay of the cortex (scale bar = 50 μm); (e) quantification of the TUNEL assay in the cortex; ∗P < 0.05 compared with the control group.
