Figure 2.

Association of eNOS expression with endothelial function. A, eNOS mRNA levels in peripheral blood mononuclear cells were significantly lower in children with OSAab than in those children with OSAn. Data are mean ± SE; n = 7 for each group. B, eNOS expression levels were inversely correlated with postocclusive hyperemic responses in these children. C, Conversely, the severity of the AHI was not correlated with postocclusive hyperemic responses. AHI = apnea-hypopnea index; Tmax = the time to attain peak reperfusion flow. See Figure 1 legend for expansion of other abbreviations.