cDNA array expression profiles of Hspcb, Hsp86-1, Nfe2l2, Ace, and Fgf7. The lines represent log₂-transformed gene expression ratios between SAD mice exposed to different hypoxia times (4, 10, and 46 hours) plus 2 hours of reoxygenation (black diamond) or breathing NO 40 ppm (white square), compared with an untreated SAD mouse normoxic group.