BCL2 and acute kidney injury: In Fig. 4B, it was observed that expressions of Bax, cleaved caspase‐3, and cleaved caspase‐9 were upregulated whereas Bcl‐2 expression was downregulated in CA‐induced AKI rats (P < 0.05, vs. sham); however, levosimendan treatment reversed these expression trends (P < 0.05, vs. Asp).