ArticleAlzheimer's & dementia : the journal of the Alzheimer's Association2024
Altered fornix integrity is associated with sleep apnea-related hypoxemia in mild cognitive impairment.
Article in Alzheimer's & dementia : the journal of the Alzheimer's Association, 2024. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 12 papers, 2 of them syntheses that pooled it.
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Who cites it
12 citing papers in PubMed, 2 syntheses or guidelines pooled it.
- Prevalence of cognitive impairment among adults with obstructive sleep apnea: a systematic review and meta-analysis.Sleep & breathing = Schlaf & Atmung · 2025Pooled it
- Cerebral oxidative stress, inflammation and apoptosis induced by intermittent hypoxia: a systematic review and meta-analysis of rodent data.European respiratory review : an official journal of the European Respiratory Society · 2024Pooled it
- Neurological impairments in Duchenne muscular dystrophy: A comprehensive review.Acta neurologica Belgica · 2026Review
- Peripheral inflammation impairs glymphatic function, contributing to neurodegeneration in Alzheimer's disease.iScience · 2026Article
- Machine learning identification of neuroimaging signatures in young and middle-aged male patients with obstructive sleep apnea: a multimodal MRI study.Sleep & breathing = Schlaf & Atmung · 2026Article
- Altered Cerebellar Spontaneous Activity and Its Association with Arousal Index in Comorbid Insomnia and Obstructive Sleep Apnea: A Resting-State fMRI Study.Journal of clinical medicine · 2026Article
- White matter microstructure differences in obstructive sleep apnea severity groups assessed by diffusion tensor metrics and biophysical modeling.Scientific reports · 2026Article
- Tract-specific white matter changes and their cognitive correlates in obstructive sleep apnea: a cross-sectional study using 3.0 T diffusion tensor imaging.Sleep & breathing = Schlaf & Atmung · 2026Article
- Altered rhythmic and arrhythmic electroencephalographic activity during non-rapid eye movement sleep in amnestic mild cognitive impairment.Brain communications · 2026Article
- Examining the association between sleep apnea and total hippocampal volumes in cognitive impairment.Alzheimer's & dementia : the journal of the Alzheimer's Association · 2025Article
- Altered fornix integrity is associated with sleep apnea-related hypoxemia in mild cognitive impairment.Alzheimer's & dementia : the journal of the Alzheimer's Association · 2024Article
- White Matter Imaging Phenotypes Mediate the Negative Causality of Mitochondrial DNA Copy Number on Sleep Apnea: A Bidirectional Mendelian Randomization Study and Mediation Analysis.Nature and science of sleep · 2024Article
Corrections and comments
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Authors and funding
13 authors.
Funding
Abstract
introductionThe limbic system is critical for memory function and degenerates early in the Alzheimer's disease continuum. Whether obstructive sleep apnea (OSA) is associated with alterations in the limbic white matter tracts remains understudied.
methodsPolysomnography, neurocognitive assessment, and brain magnetic resonance imaging (MRI) were performed in 126 individuals aged 55-86 years, including 70 cognitively unimpaired participants and 56 participants with mild cognitive impairment (MCI). OSA measures of interest were the apnea-hypopnea index and composite variables of sleep fragmentation and hypoxemia. Microstructural properties of the cingulum, fornix, and uncinate fasciculus were estimated using free water-corrected diffusion tensor imaging.
resultsHigher levels of OSA-related hypoxemia were associated with higher left fornix diffusivities only in participants with MCI. Microstructure of the other white matter tracts was not associated with OSA measures. Higher left fornix diffusivities correlated with poorer episodic verbal memory. DISCUSSION: OSA may contribute to fornix damage and memory dysfunction in MCI. HIGHLIGHTS: Sleep apnea-related hypoxemia was associated with altered fornix integrity in MCI. Altered fornix integrity correlated with poorer memory function. Sleep apnea may contribute to fornix damage and memory dysfunction in MCI.
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Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the Socratic graph.