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The proportions of Ki67-positive renal tubular epithelial cells in IRI-AKI rats treated with BMSC after different pretreatments on 3 days. (a) Ki67 immunostaining, original magnification 400×. The cells with nuclei stained brown were Ki67-positive cells. (b) The proportions of Ki67-positive cells in IRI-AKI rats treated with BMSC. Group with symbol # versus groups with symbol ### or Δ, both P<0.05; group with symbol ※ versus groups with symbol ### or Δ, both P<0.05.
