Key result
Cardiac-specific ablation of the Na+-Ca2+ exchanger (NCX-KO) in mice significantly protected hearts against ischemia-reperfusion injury, reducing necrosis and improving functional recovery.
Cardiac-specific ablation of the Na+-Ca2+ exchanger protects against ischemia/reperfusion injury, suggesting that Ca2+ entry via reverse-mode NCX is a major cause of this injury.
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NCX ablation suggests a cardioprotective target; hypothesis-generating in mice, clinical translation studies needed.
Imahashi et al. (2005) studied Ischemia/reperfusion injury. Cardiac-specific ablation of NCX (NCX-KO) vs. Wild-type hearts was evaluated on Ischemia/reperfusion injury (ATP decline, contracture, necrosis, recovery of left-ventricular developed pressure). Cardiac-specific ablation of the Na+-Ca2+ exchanger (NCX-KO) in mice significantly protected hearts against ischemia-reperfusion injury, reducing necrosis and improving functional recovery.
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