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Morphologic features revealed using Masson’s trichrome staining (A–C) and the expression of α-SMA in the kidneys revealed by immunohistochemistry (D–F). Sections from (A and D) a sham-operated rat, (B and E) a rat subjected to IRI, and (C and F) a rat subjected to OzoneOP. Original magnification ×200. SMA, smooth muscle actin; IRI, ischemia and reperfusion injury; OzoneOP, ozone oxidative preconditioning.
