Interestingly, there was a significant positive correlation between the severity of SDB (AHI) and CaMKII oxidation (B [95%CI]: 0.043 [0.021; 0.065], n = 23, R2 = 0.447, p < 0.05, Figure 2C, Table S1 in online supplement). The gene discussed is CAMK2G; the disease is sleep apnea syndrome.