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Ultrastructural changes of cerebral cortex neurons and synapses in mice offspring after maternal exposure to PM2.5 during pregnancy. (A) mock-treated group, normal neuron; (B) low-dosage group, no significant changes in the neuron; (C) The arrow shows the indistinct nuclear membrane; (D) the arrow shows the autophagic body; (E,F) the arrow shows the synapse. Bar = 1.0 μm.
