Fig. 6. DIDS shortens the pseudo QT interval in human induced pluripotent stem cell derived ventricular myocytes. A. Example traces of MEA recorded trace before (control) and after application of 10 µM DIDS. The center of noisy original traces has been approximated by black lines to support visability of wave forms. The straight lines represent base lines. The pseudo QT interval is indicated by an arrow and labelled with "QT". B Quantification of pseudo QT interval before and after application of DIDS. Data were tested for significance using paired t-test and *** indicates p = 0.001.