At mitochondrial level, the mitochondrial respiratory function, Δψm and mitochondrial ROS production were also completely preserved in Beclin1+/−/Fundc1 TG mouse hearts after acute MI, compared with that in Beclin1+/− mice, to levels similar as in Fundc1 TG mice (Figure 6F–H). Here, BECN1 is linked to myocardial infarction.