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. 2020 Feb 11;11:46. doi: 10.3389/fphys.2020.00046

FIGURE 1.

FIGURE 1

Representative light [Periodic acid-Schiff (PAS) staining] micrographs of kidney tissues of mice at the end of 1-week exposure period to air (control, A), 1-week exposure period water pipe smoke (WPS) exposure (B), 4-week exposure period to air (control, C) or 4-week exposure period to WPS (D). Note that the kidney sections of mice exposed to WPS showed vacuoles (V), glomerular degeneration (), and loss of loss of PAS staining (arrows). Scale bar = 100 μm; n = 12.