Altered capillary vasodynamics in the sickle cell compared to
control mice. Red blood cell velocity (a), mean capillary
diameter (b), and red blood cell flux (c) were significantly
higher among sickle cell mice compared with controls
(p = 0.013, 0.014, 0.021 for RBC velocity,
capillary diameter, and flux, respectively; Mann–Whitney
U-test). Error bars represent mean ± SD, 1−β = 0.92 in (a), 0.95
in (b), and 0.99 in (c).