Sulforaphane Attenuates Contrast-Induced Nephropathy in Rats via Nrf2/HO-1 Pathway

Figure 4

Immunohistochemical photograph HO-1 in the kidneys of different groups. Original magnification ×400. (a) Control group; (b) Ioversol group; (c) Ioversol + SFN group; and (d) SFN group.

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(b)

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