Figure 6: Expression of cardiomyocyte-specific miRNAs and mRNAs by dd-PCR. Bars: expression of genes in freshly isolated Sca-1+CD31 cells (black) or differentiated cardiomyocytes (gray). Expression was normalized to miRNA U6 and GAPDH and expression was calculated based on a mean of three biological replicates. Differences were analyzed with Student’s -test. .