Evaluation of clinical and genetic factors in obstructive sleep apnoea

Maria de Lourdes Rabelo Guimarães, Pedro Guimarães de Azevedo, Renan Pedra Souza, Bianca Gomes-Fernandes, Eitan Friedman, Luiz De Marco, Luciana Bastos-Rodrigues*

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

Abstract

Purpose. To evaluate the correlation between several presumed candidate genes for obstructive sleep apnoea (OSA) and clinical OSA phenotypes and propose a predictive com-prehensive model for diagnosis of OSA. Methods. This case-control study compared polysomnographic patterns, clinical data, morbidities, dental factors and genetic data for polymorphisms in PER3, BDNF, NRXN3, APOE, HCRTR2, MC4R between confirmed OSA cases and ethnically matched clinically unaffected controls. A logistic regression model was developed to predict OSA using the combined data. Results. The cohort consisted of 161 OSA cases and 81 controls. Mean age of cases was 53.5 ± 14.0 years, mostly males (57%) and mean body mass index (BMI) of 27.5 ± 4.3 kg/ m2. None of the genotyped markers showed a statistically significant association with OSA after adjusting for age and BMI. A predictive algorithm included the variables gender, age, snoring, hypertension, mouth breathing and number of T alleles of PER3 (rs228729) pre-senting 76.5% specificity and 71.6% sensitivity. Conclusions. No genetic variant tested showed a statistically significant association with OSA phenotype. Logistic regression analysis resulted in a predictive model for diagnosing OSA that, if validated by larger prospective studies, could be applied clinically to allow risk stratification for OSA.

Original languageEnglish
Pages (from-to)409-416
Number of pages8
JournalActa Otorhinolaryngologica Italica
Volume43
Issue number6
DOIs
StatePublished - 2023

Funding

FundersFunder number
Coordenação de Aperfeiçoamento de Pessoal de Nível Superior
Conselho Nacional de Desenvolvimento Científico e Tecnológico405053/2013-4
Fundação de Amparo à Pesquisa do Estado de Minas GeraisCDS-RED-00019-16

    Keywords

    • algorithms
    • case-control studies
    • genetic polymorphisms
    • obstructive sleep apnea
    • phenotype

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