Fig. 1.
Association between uric acid, ascorbic acid, and blood-brain barrier integrity in AD.A) Plasma UA versus CSF UA,r = 0.669, p = 0.001; B) Mean difference in CSF uric acid between BBB intact (CSF Albumin Index < 9.0) and BBB impaired (CSF Albumin Index ≥ 9.0) was 6.2 µmol/L (p = 0.028); Standard error bars set at 1.0; C) CSF Albumin Index versus CSF-to-plasma UA, r = 0.442, p = 0.011; D) CSF AA versus CSF UA, r = 0.388, p = 0.001.