CD34 and left ventricular hypertrophy: In hypertensive patients with different degrees of CV involvement, and in particular in hypertensive patients with isolated arterial stiffening (AS) or with both carotid intima-media thickening and left ventricular hypertrophy (LVH),we evaluated the expression of miR221/222 in CD34+ cells, as well as the associations between CD34+CPC number, intracellular miR221/222,and redox balance, including reactive oxygen species (ROS) production and antioxidant enzymes[31].We found increased miR221/222expression and higher ROS levels in CD34+CPCs.