Fig. 2
From: Salbutamol attenuates arrhythmogenic effect of aminophylline in a hPSC-derived cardiac model

Beat rate variability analysis of hPSC-CMs with salbutamol. (A) Scatters plots with indicated means and SD of the standard deviation of successive differences (SDSD) of EBs measured in salbutamol and control (n = 8, 9, 9, and 6 for 10 nM, 100 nM, 1 µM, and 10 µM salbutamol, respectively, and n = 14, 11, 11, and 5 for the respective controls). SDSD with 10 nM and 100 nM salbutamol were significantly lower compared to controls (Brown-Forsythe and Welch ANOVA test with Holm-Sidak multiple comparisons test, control vs. 10 nM salbutamol, P = 0.0115, control vs. 100 nM salbutamol, P = 0.0139). (B) Poincaré plots with SDSD intervals.