Fig. 2.

Swim training reduced the expression of fetal genes in mice with DCM. (A) Representative Northern blot showing total RNA from ventricles of untrained (un) and exercise trained (ex) Ntg and DCM-TG9 mice. (B) Quantitative analysis of fetal gene expression (fold change). GAPDH was used to normalize for loading of RNA. Mean values for Ntg untrained (un) mice were normalized to 1 (n = 3 or 4 in each group). ∗, P < 0.05 vs. Ntg untrained mice. †, P < 0.05 vs. DCM-TG9 untrained mice. α-sk actin, α-skeletal actin.