Figure 4.

Different MMP-2 expression in left and right ventricles in four different treatment groups at 8 weeks. *P < 0.05 compared to the corresponding treatment group of left ventricle; †P < 0.05 compared to the corresponding control group of left ventricle; ‡P < 0.05 compared to the corresponding control group of right ventricle. ND: Nandrolone decanoate; ST: Swimming training; NS: Combined nandrolone decanoate and swimming training; LV: Left ventricle; RV: Right ventricle; LV-C: Left ventricle of the control group; RV-C: Right ventricle of the control group; MMP-2: Matrix metalloproteinases-2; GAPDH: Glyceraldehyde-3-phosphate dehydrogenase.