Effect of antithrombin (AT) on renal histopathologic features of outer medulla in rats with ischemia/reperfusion (I/R) injury.

Tissues were obtained 24 hours after reperfusion. (A) Vehicle-treated group; (B) AT-treated group. Original magnification × 400 (hematoxylin-and-eosin stain). Typical results from each group are shown.