More recently, Cx-inhibiting peptides (antiarrhythmic peptides AAP10; ZP123; GAP-134; RXP-E; and the Cx43 mimetic peptides Gap 26 and Gap 27) were suggested for the treatment of arrhythmias in patients with ischemic cardiomyopathy [60]. Here, GJA1 is linked to cardiac arrhythmia.