Confirmation of the microarray results of changed genes in hyperoxic vs. controlled reoxygenation procedures. Changes in mRNA expression of COL1A2, VCAN, MAPK8, NLK, SLC6A6, NRAS1, PDE1, MOSC1, and CRIP3 were verified in 10 patients (5 using hyperoxic and 5 using controlled reoxygenation procedure) by quantitative real-time-PCR. Results are shown as means (±SE) fold-change compared with hyperoxia. *P < 0.05, **P < 0.01.