Figure 1. Peripheral blood mononuclear cell protein expression levels of rho-associated protein kinase (ROCK) 1 and ROCK2 in obstructive sleep apnea syndrome (SA) patients and healthy controls (HC) as measured in the morning and evening. Protein expression levels were normalized with β-actin and expressed as arbitrary units (AU). Vertical lines indicate mean values. *p<0.05; **p<0.01 as assessed by ANOVA and Tukey’s post-hoc test.