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Light microscopy images of trichrome-stained sections of renal outer medulla (×10 original magnification; A-B) and renal cortex (×40 original magnification; C–D) of Dahl SS rats receiving daily injections of vehicle (A and C) or tacrolimus (B and D) during the 3-wk period they were fed 4.0% NaCl diet. Bottom: calculated glomerular injury score (E) and the percentage of renal outer medulla (OM) consisting of protein casts (F). *P < 0.05 vs. vehicle-treated animals.
