MYOD1 and Myocardial fibrosis: Moreover, the myocardial tissues of rats were analyzed using HE staining and Masson staining and the results showed that myocardial fibrosis and myocardial cell hypertrophy were both attenuated in response to over-expression of MyoD, which could reverse the enhancing role of lncRNA MALAT1 (Figure 5D–5E).