Expression levels of NAD(P)H oxidase family enzymes in a) HUVEC, and) HMVEC cells after 24 hours of high glucose exposure. Gene expression of NOX1, NOX4, and CYBA were measured using real-time PCR in both (a) HUVEC and (b) HMVEC. Fold changes were calculated by 2-∆∆CT method using 18s and RPLP0 as housekeeping genes and cells grown in M199 media with 5.6 mM D-glucose as control. **p ≤ 0.05 significantly higher than control for HMVEC. *p ≤ 0.07 higher than control for HMVEC.