(g-i) Echocardiography analysis of cardiac dimensions and function in Sham-operated WT mice and miR-212/132 null and WT mice 3 weeks after TAC (n=4-11). (g) End-diastolic area, (h) end-systolic area and (i) fractional shortening. All values represent mean±s.e.m. *P0.05; **P0.01; ***P0.005; #P0.05 compared with WT TAC; ###P0.005 compared with WT TAC; PSR, picrosirius red (collagen stain). DAPI, 4′,6-diamidino-2-phenylindole; WGA, wheat germ agglutinin. 