Fig. 3. Expressions of VE-cadherin (A), ZO-1 (B) and claudin-5 (C) after exposure of cells to 6 h of IH or SH in our model of blood-brain barrier. Results are represented as mean value ± SEM (n=9, N=3), ** p≤0.01, *** p≤0.001 compared to control conditions. SH: sustained hypoxia, IH: intermittent hypoxia, control: normal atmospheric gas pressure.