Fig. 4

a, c Differences in brain concentration and brain uptake clearance (Kin) of [13C6]mannitol with or without correction by vascular marker. b, d Cbr and Kin of [13C12]sucrose with or without correction by vascular marker. ***p < 0.001 (n = 6), analyzed by Student’s paired t-test (two-tailed). N.S. Student’s unpaired t-test