The expression level of miR-212 was detected in the hypertrophy model, and it was found that the expression of miR-212 was increased in the rat model with abdominal aortic constriction for 4 weeks, and the expression of miR-212 was also dramatically increased in the model of mast cardiomyocytes induced by PE and Ang II (Figure 3(a)), suggesting that miR-212 may be involved in the regulation of CH. This evidence concerns the gene AGT and cyclic hematopoiesis.