Figure 2. miR-574 was upregulated in the sperm of aging males and was related to poor sperm motility. (A) The expression of miR-574 in the sperm of the natural aging model. t test was used to compare the differences between the two groups. ***p<0.001. (B, C) Scatter plot of sperm motility, progressive motility and the miR-574 expression in the sperm of the natural aging model. (D) The expression of miR-574 in the sperm of the D-gal-induced aging model. **p<0.01. (E, F) Scatter plot of sperm motility, progressive motility and the miR-574 expression in the sperm of the D-gal-induced aging model.