The impact of SRF overexpression on the expression of cardiac miRNAs. 3A. Comparison of the expression of 50 cardiac-enriched miRNAs in adult SRF-Tg with that in age-matched wild-type mice. 3B. The 20 microRNAs that are found to have at least 1-fold change in the hearts of adult SRF-Tg mice compared to that of age-matched wild-type (WT) mice. Both guide strand and passenger strand (*) of mir-133a are decreased in SRF-Tg vs. wild-type mice.