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Heritability of Heart Rate Response to Arousals in Twins
Open accessAbstract
Objectives: To determine if the large and highly reproducible interindividual differences in arousal intensity and heart rate response to arousal (ΔHR) during non-REM sleep are heritable. Methods: Polysomnograms of 55 monozygotic (14 male and 41 female pairs) and 36 dizygotic (15 male and 21 female pairs) same-sex twin pairs were analyzed. Arousals were scored using the 2012 American Academy of Sleep Medicine criteria. Arousal intensity was scaled (between 0 and 9) using an automatic algorithm based on the change in electroencephalogram time and frequency characteristics. The ΔHR was determined at each arousal. We calculated average arousal duration, average arousal intensity, average overall ΔHR, average ΔHR at a given arousal intensity, slope of ΔHR per arousal intensity, and arousal intensity threshold of ΔHR. Results: The intraclass correlations among monozygotic and dizygotic twin pairs were 0.663 and 0.146, respectively, for average arousal intensity, and 0.449 and 0, respectively, for arousal intensity threshold of ΔHR controlling for age, sex, and race. These values imply large broad sense heritability (H2) for these traits. This evidence was confirmed by a robust maximum likelihood-based variance components estimation approach, with an additive genetic heritability of 0.64 (95% confidence interval: 0.48 to 0.80) for average arousal intensity and a combined additive and dominance genetic heritability and of 0.46 (0.25 to 0.68) for arousal intensity threshold of ΔHR. Results also suggested significant additive genetic effects for average arousal duration, ΔHR at arousal intensity scale 4 and the overall average ΔHR. Conclusion: Genetic factors explain a significant fraction of the phenotypic variability for average arousal intensity and arousal intensity threshold of ΔHR. Results suggest that the duration of arousals and specific average ΔHR values may also be heritable traits. Clinical trial registration: NCT02827461.
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Heart rate response to arousal is heritable.
“Heart rate response to arousal is also heritable253”
From International Consensus Statement on Obstructive Sleep Apnea (2023) · cites this paper as [253]
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Metadata
- Authors
- Gao, X., Azarbarzin, A., Keenan, B. T., Ostrowski, M., Pack, F. M., Staley, B., Maislin, G., Pack, A. I., Younes, M., & Kuna, S. T.
- Affiliations
- Shanxi Medical University (CN)
- Brigham and Women's Hospital (US)
- University of Pennsylvania (US)
- YRT Ltd, Winnipeg, Manitoba, Canada;
- University of Manitoba (CA)
- Philadelphia VA Medical Center (US)
- ORCID
- Venue
- Sleep
- Publisher
- Oxford University Press (OUP)
- Published
- 2017-04-18
- Volume
- 40
- Issue
- 6
- ISSN
- 0161-8105 (ISSN-L)
- 1550-9109
- PMC
- PMC6075176
- OpenAlex
- W2605696866
- Semantic Scholar
- 9c435db7a826ba5f107693a436f0189f5d1cc11f
- Cited by
- 29
- References
- 44
- Citations by year
- 2026: 3 · 2024: 5 · 2023: 2 · 2022: 3 · 2021: 4 · 2020: 4 · 2019: 3 · 2018: 4 · 2017: 1
- FWCI
- 4.27
- Type
- journal article
- Language
- en
- Open access
- bronze
- doi.org
- Locations
- SLEEP (publishedVersion)
- Europe PMC (PubMed Central) (publishedVersion)
- PubMed Central (publishedVersion)
- PubMed (publishedVersion)
- Funders
- National Institutes of Health
- Topics
- Social Sciences › Psychology › Experimental and Cognitive Psychology › Sleep and related disorders
- Life Sciences › Neuroscience › Cognitive Neuroscience › Sleep and Wakefulness Research
- Life Sciences › Biochemistry, Genetics and Molecular Biology › Genetics › Genetic Associations and Epidemiology
- Keywords
- heritability, monozygotic twins, dizygotic twins, NREM sleep, sleep apnea, additive genetic effects, dominance effects, intraclass correlation coefficient, variance components
- MeSH terms
- Adult, Algorithms, Arousal, Electroencephalography, Female, Heart Rate, Humans, Male, Phenotype, Twins, Monozygotic, Likelihood Functions, Polysomnography
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