期刊
EUROPEAN JOURNAL OF NUTRITION
卷 60, 期 7, 页码 3799-3810出版社
SPRINGER HEIDELBERG
DOI: 10.1007/s00394-021-02552-w
关键词
Obstructive sleep apnea; Inflammation; Oxidative stress; Weight loss; Mediterranean diet; Mediterranean lifestyle
资金
- European Union [MIS 5049027]
A randomized controlled clinical trial showed that a weight-loss Mediterranean diet/lifestyle intervention combined with OSA standard care can lead to greater improvements in inflammation and oxidative stress compared to standard care alone. The intervention had anti-inflammatory and antioxidant benefits in patients with OSA.
Purpose Inflammation and oxidative stress are implicated in obstructive sleep apnea (OSA) pathophysiology. We aimed at exploring whether the combination of a weight-loss Mediterranean diet/lifestyle intervention with OSA standard care, i.e., continuous positive airway pressure (CPAP) prescription, can lead to greater improvements in inflammation and oxidative stress, compared to standard care alone. Methods This was a randomized controlled clinical trial in 187 adult, overweight patients with moderate-to-severe OSA. Participants were randomized to a standard care (SCG, n = 65), a Mediterranean diet (MDG, n = 62) or a Mediterranean lifestyle group (MLG, n = 60). All groups received OSA standard care. Intervention arms participated in a 6-month behavioral weight-loss intervention based on the Mediterranean diet, while the MLG also received counselling on physical activity and sleep habits. Results Seven patients were excluded and 53/180 were lost to follow-up. In intention to treat analysis (n = 180), the SCG did not exhibit changes in any of the markers assessed. Post-intervention age-, sex-, baseline- and CPAP use-adjusted plasma high sensitivity C-reactive protein levels (mg/L) were lower in the MDG and the MLG compared to the SCG (mean difference - 1.33, P = 0.039 and - 1.68, P = 0.007, respectively). The MLG also exhibited lower urinary 8-iso prostaglandin F2a levels (ng/mg creatinine) compared to the SCG and the MDG (mean difference - 1.10, P < 0.0001 and - 0.80, P = 0.001, respectively). Adiponectin and oxidized guanine levels were not altered in any of the study groups. Results were similar in per protocol analysis (n = 127). Conclusion A weight-loss Mediterranean diet/lifestyle intervention on top of CPAP has anti-inflammatory and antioxidant benefits in OSA. Registration The trial was prospectively registered at ClinicalTrials.gov (NCT02515357) on August 4, 2015.
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