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Published on: March 4, 2014
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Causal association between obstructive sleep apnea and amyotrophic lateral sclerosis: a Mendelian randomization study
Rongrong Du1,2, Yahui Zhu1,3, Peng Chen3,4
1Department of Neurology, The First Medical Center, Chinese PLA General Hospital, Beijing, China.
Frontiers in Aging Neuroscience
|May 31, 2024
Summary
Obstructive sleep apnea (OSA) may increase the risk of amyotrophic lateral sclerosis (ALS). This study found potential evidence for a causal link between OSA and a higher risk of developing ALS.
Area of Science:
- Neurology
- Genetics
- Epidemiology
Background:
- Obstructive sleep apnea (OSA) is a prevalent condition.
- The relationship between OSA and amyotrophic lateral sclerosis (ALS) risk is not well understood.
- Investigating potential causal links is crucial for public health.
Purpose of the Study:
- To determine if OSA causally increases the risk of ALS.
- Utilizing a large-scale Mendelian randomization analysis.
- To provide evidence-based insights into neurodegenerative disease etiology.
Main Methods:
- Employed a two-sample Mendelian randomization (MR) design.
- Utilized single-nucleotide polymorphisms (SNPs) from genome-wide association studies (GWAS) as instrumental variables.
- Applied inverse-variance weighted (IVW) as the primary analysis, with weighted median and mode methods for sensitivity analysis.
Main Results:
- Mendelian randomization analysis indicated a significant association between genetic liability to OSA and increased ALS risk (OR, 1.220; p=0.021).
- Sensitivity analyses supported the robustness of the primary finding.
- No significant heterogeneity or horizontal pleiotropy was detected, strengthening the causal inference.
Conclusions:
- This study provides potential evidence supporting a causal effect of OSA on the risk of developing ALS.
- Findings suggest that managing OSA could be a potential strategy for mitigating ALS risk.
- Further research is warranted to confirm these findings and explore underlying mechanisms.
