Review Article

Biomarkers to Improve Diagnosis and Monitoring of Obstructive Sleep Apnea Syndrome: Current Status and Future Perspectives

Table 2

Effects of continuous positive airway pressure treatment on several biomarkers in obstructive sleep apnea syndrome.

StudyBiomarkersCPAP treatment durationComments

Yokoe et al. [26]CRP
IL-6
1 monthCRP, IL-6 levels, and spontaneous IL-6 production by monocytes were significantly decreased after treatment

Steiropoulos et al. [27]CRP6 monthsCRP levels were decreased in the group with good adherence to treatment

Kohler et al. [28]CRP
IL-6
1 monthCRP and IL-6 levels were not decreased after treatment

Minoguchi et al. [36]TNF-α1 monthSerum levels and spontaneous production of TNF-α were decreased in patients with moderate-to-severe OSAS

Steiropoulos et al. [41]TNF-α
IL-6
6 monthsTNF-α levels were decreased in the good compliance group after treatment. IL-6 levels did not alter with treatment

Hegglin et al. [42]TNF-α8 monthsTNF-α levels were decreased in men independently from compliance to CPAP use, but not in women

Guasti et al [44]TNF-α
IL-8
12 weeksTNF-α and IL-8 levels remained unchanged after treatment

Ohga et al. [48]IL-8
ICAM-1
8–18 monthsIL-8 and ICAM-1 levels were decreased after treatment

Oyama et al. [49]TNF-α
IL-8
IL-6
3 monthsTNF-α, IL-8, and IL-6 levels were decreased after treatment

Chin et al. [67]VCAM-1
ICAM-1
E-selectin
3-4 days,
1 month,
6 months
After 1 month E-selectin and ICAM-1 levels but not VCAM-1 had decreased.
After 6 months VCAM-1 levels did not change, while ICAM-1 levels further decreased