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. 2020 Aug 21;15:6279–6294. doi: 10.2147/IJN.S254969

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© 2020 Han et al.

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Effects of Nano-TiO₂ exposure on the histopathological changes in the lung, liver, and kidney at 7 days after treatment. (A) The representative images of lung tissue of rats stained with HE. (B) The representative images of liver tissue of rats stained with HE. (C) The representative images of kidney tissue of rats stained with HE. Scale bar represents 50 μm. The arrow in A₂ indicated irregular luminal inflammatory cell infiltration; The arrow in A₃indicated the alveolar wall thickening. The arrow in B₂ indicated cell disorder. The arrow in B₃ indicated the spotty necrosis. The arrow in C₂ indicated the gap increases. The arrow in C₃ indicated necrosis. 1: Control group, 2: 0.2 g/kg group, 3: 1 g/kg group.