A. Comparative body size of a SENP2-Tg mouse (line #2839) and a WT littermate at P31. B. Heart weight (HW) and body weight (BW) of SENP2-Tg mice (n=4) at P18 were significantly lower than those of littermates (n=5, P<0.001 and 0.00001, respectively), but cardiac index HW/BW ratio showed no significant difference (P=0.66). C. Non-invasive cardiac functional analysis of WT and SENP2-Tg mice at P40 using echocardiography showed thinner LVPW in diastole, reduced stroke volume and cardiac output in SENP2-Tg mice. Abbreviations: LVPW, left ventricular posterior wall; d, diastole; s, systole. D. RT-qPCR on RNA samples purified from both WT and SENP2-Tg mouse hearts at P18 revealed down-regulation of transcripts of a number of contractile proteins. *, P<0.05; **, P<0.01. The unpaired Student's t test was applied to determine statistical significance between groups.