MFN1 and myocardial infarction: In addition, hsa-miR-26b-5p was recently described to form a signaling pathway with Mfn1 (mitofusin 1), an essential gene for mitochondrial fusion; this hsa-miR-26b-5p/Mfn1 axis seems to affect mitochondrial dynamics and apoptosis in the context of myocardial infarction and cardiac microvascular dysfunction (45).