Fig. 2From: Metformin restores electrophysiology of small conductance calcium-activated potassium channels in the atrium of GK diabetic ratsECG of control, GK and metformin-treated GK rats. GK rats displayed accelerated heart rate, junctional rhythm, separation of P and QRS waves, irregular P waves and partial blockade of electrical conduction, whereas metformin-treated GK rats showed sinus rhythm and relatively regular P wavesBack to article page