Fig. 4 |. Macrophages protect against ventricular arrhythmia.
a, Experimental outline for macrophage depletion with Csf1R inhibitor in STORM mice. b, Flow plots and quantification of cardiac monocytes and macrophages (Macs) in STORM control mice (n = 6) and after macrophage depletion by Csf1Ri (n = 7). A two-sided unpaired t-test (monocytes) and a two-sided Mann–Whitney test (macrophages) were used for statistical analysis. c, ECG recordings from STORM mice with and without macrophage depletion after MI. d, VT burden (STORM control mice, n = 11; STORM Csf1Ri, n = 15) and Vfib burden (STORM control mice, n = 6; STORM Csf1R, n = 5) within 24 hours after MI. Two-sided Mann–Whitney tests were used for statistical analysis. e, Experimental outline. f, Flow cytometry for cardiac monocytes and macrophages (Macs) in wild-type STORM control mice (n = 8) and Ccr2−/− STORM mice (n = 9). A two-sided unpaired t-test (monocytes) and a two-sided Mann–Whitney test (macrophages) were used for statistical analysis. g, ECG recordings from wild-type STORM control and Ccr2−/− STORM mice. h, VT burden (wild-type STORM control, n = 10 mice; Ccr2−/− STORM, n = 19) and Vfib burden (wild-type STORM control, n = 8; Ccr2−/− STORM, n = 14) after MI. Two-sided Mann–Whitney tests were used for statistical analysis. Data are mean ± s.e.m.