Fig. 2.

Morphology of cardiomyocytes isolated from adult transgenic and wild-type mice. Representative microscopic images show that NH₂-terminal truncated cardiac TnI (cTnI-ND) and NH₂-terminal truncated cardiac TnT (cTnT-ND) mouse cardiomyocytes had similar morphology to that of wild-type cardiomyocytes, except for a slightly shorter length of the cTnI-ND cells. Cells from 10 wild-type, 5 TnI-ND, and 5 TnT-ND hearts were examined. At least 100 cells from each heart were measured and pooled for statistical analysis (Table 1).