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Effects of bepridil on stretch-activated BKca channels and stretch-induced extrasystoles in isolated chick hearts

Various types of mechanosensitive ion channels, including cationic stretch-activated channels (SAC NS ) and stretch-activated BKca (SAKca) channels, modulate heart rhythm. Bepridil has been used as an antiarrhythmic drug with multiple pharmacological effects; however, whether it is effective for mechanically induced arrhythmia has not been well investigated. To test the effects of Bepridil on SAKc…