KRT1 and Hyperglycemia: In particular, K1, which describes the transport of [18F]FDG from the blood to the brain, was much lower during hyperglycemia (6.61 ± 1.00 mL·hg−1·min−1) than during euglycemia (12.67 ± 1.01 μMol·hg−1·min−1).