Figure 7.High expression of circulating miR-21 in aged hypertensive subjects. (A) Circulating miR-21 expression in normotensive young, normotensive old, hypertensive young and hypertensive old subjects. (B) The linear correlation between intraventricular septal thickness at diastole (IVSd) and circulating miR-21 expression in hypertensive subjects. **P < 0.01 for difference from each group.
