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Review
. 2023 Feb 8;21(3):265-277.
doi: 10.1007/s41105-023-00445-5. eCollection 2023 Jul.

Metabolomic approach for obstructive sleep apnea in adults: a systematic review

Cristina Salles  1 , Maria Clara Freitas  1 , Amancio Souza  1   2 , Paulo Ribeiro  1   3 , Cristiane Dias  1 , Michele Rosa  1   4 , Miguel Meira E Cruz  1   5   6
Affiliations
Review

Metabolomic approach for obstructive sleep apnea in adults: a systematic review

Cristina Salles et al. Sleep Biol Rhythms. .

Erratum in

Abstract

Obstructive Sleep Apnea (OSA) corresponds to episodes of complete or partial upper airway obstruction during sleep. The gold standard for diagnosing OSA is polysomnography; however, metabolomics is an innovative and highly sensitive method that seeks to identify and quantify small molecules in biological systems. Identify the metabolites most frequently associated with obstructive sleep apnea in adults. The search for articles was conducted between October 2020 and August 2021, in electronic databases, such as MEDLINE/PubMed, Scielo, Embase, and Cochrane, through the combination of descriptors: obstructive sleep apnea, metabolomic, adult. This systematic review included all cross-sectional studies published, including human patients aged 18 years or older, of both genders who underwent type I or II polysomnography and metabolomics study. The search strategy selected 3697 surveys, and 4 of them were selected to be a part of this systematic review. Based on the analyzed surveys, it was found that all of them were able to diagnose OSA, reaching a sensitivity of 75-97%, and specificity that ranged from 72 to 100%; besides differentiating patients with OSA (severe, moderate, and mild) from simple snorers with a mean sensitivity of 77.2% and specificity of 66.25%. These findings suggest that, in addition to being used as a screening and diagnostic strategy for OSA, metabolomics has the potential to be used for severity stratification and to monitor the disease's progression.

Keywords: Adults; Metabolomic; Obstructive sleep apnea.

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Conflict of interest statement

Conflict of interestThe authors declare that they have no conflict of interest.

Figures

Fig. 1
Fig. 1
Flowchart of study identification, eligibility, and inclusion
Fig. 2
Fig. 2
Quality assessment of selected studies, based on the Strengthening the Reporting of Observational Studies in Epidemiology (STROBE) initiative essential items
Fig. 3
Fig. 3
A Distribution of the mean age in studies; B distribution of the mean BP in the studies; C distribution of the Mean BMI in the studies; D distribution of mean AHI in the studies
Fig. 4
Fig. 4
Results of the studies regarding metabolites considered as significantly altered. The metabolites marked with * were observed in patients with an AHI > 3, having OSA patients with 5 ≤ AHI < 30 as a comparison parameter
Fig. 4
Fig. 4
Results of the studies regarding metabolites considered as significantly altered. The metabolites marked with * were observed in patients with an AHI > 3, having OSA patients with 5 ≤ AHI < 30 as a comparison parameter
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