Fig. 2.

Effect of GDPβS on I_hypo. (A) Left, I_hypo was recorded in rat pregnant myocyte. The representative I~V relationships of I_hypo by voltage ramp of -100 to 100 mV during 500-ms durations. Right, summary of normalized amplitude of I_hypo. The current amplitudes in each group were measured at -60 and +60 mV respectively. (B) A representative trace of I_hypo in the presence of GDPβS (2 mM) in pipette solution. Hypoosmotic solution was applied to pregnant rat myocyte after 7 min dialysis with GDPβS in the pipette solution. Right, summary of normalized amplitude of I_hypo. The current amplitudes in each group were measured at -60 and +60 mV respectively. (A) ^*p<0.05, ^**p<0.01. (B) p>0.05.