ArticleNeuroImage. Clinical2018
Sex-specific hippocampus volume changes in obstructive sleep apnea.
Article in NeuroImage. Clinical, 2018. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 47 papers, 1 of them a synthesis that pooled it.
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Who cites it
47 citing papers in PubMed, 1 synthesis or guideline pooled it, 97 citations in OpenAlex.
- Reduced cerebral blood flow in obstructive sleep apnea: A meta-analysis of SPECT and MRI studies.Sleep & breathing = Schlaf & Atmung · 2026Pooled it
- Cortical thinning with increasing OSA severity stages in adult comorbid insomnia and sleep apnea and its relevance for respiration measures.Scientific reports · 2026Article
- Cognition and psychomotor vigilance in treated sleep apnea patients with and without daytime sleepiness: the MAGNETO study.Journal of clinical sleep medicine : JCSM : official publication of the American Academy of Sleep Medicine · 2026Article
- Quantitative and morphological analyses reveal microglia-specific neuroinflammation in brain regions linked to cognitive function in ovariectomized and chronic intermittent hypoxia-exposed female rats.Brain, behavior, & immunity - health · 2026Article
- Filling in the gap: Hippocampal CA1 neuronal counts and volumes in female cognitive controls.Neurobiology of disease · 2025Article
- Article
- Examining the association between sleep apnea and total hippocampal volumes in cognitive impairment.Alzheimer's & dementia : the journal of the Alzheimer's Association · 2025Article
- Impact of sleep apnea on alzheimer's disease in relation to sex: an 8-year longitudinal follow-up study of a nationwide cohort.Alzheimer's research & therapy · 2025Article
- 'Selected' Exosomes from Sera of Elderly Severe Obstructive Sleep Apnea Patients and Their Impact on Blood-Brain Barrier Function: A Preliminary Report.International journal of molecular sciences · 2024Article
- Microstructural brain abnormalities and associated neurocognitive dysfunction in obstructive sleep apnea: a pilot study with diffusion kurtosis imaging.Journal of clinical sleep medicine : JCSM : official publication of the American Academy of Sleep Medicine · 2024Article
- Volumetric analysis of the hypothalamic subunits in obstructive sleep apnea.Brain and behavior · 2024Article
- Tet1-mediated 5hmC regulates hippocampal neuroinflammation via wnt signaling as a novel mechanism in obstructive sleep apnoea leads to cognitive deficit.Journal of neuroinflammation · 2024Article
- Ventral subiculum promotes wakefulness through several pathways in male mice.Neuropsychopharmacology : official publication of the American College of Neuropsychopharmacology · 2024Article
- The Association of Upper Airway Anatomy with Brain Structure: The Multi-Ethnic Study of Atherosclerosis.Brain imaging and behavior · 2024Article
- Older adults at greater risk for Alzheimer's disease show stronger associations between sleep apnea severity in REM sleep and verbal memory.Alzheimer's research & therapy · 2024Article
- Elucidating the association of obstructive sleep apnea with brain structure and cognitive performance.BMC psychiatry · 2024Article
- Cerebrovascular pathology mediates associations between hypoxemia during rapid eye movement sleep and medial temporal lobe structure and function in older adults.bioRxiv : the preprint server for biology · 2024Article
- Sleep duration and brain MRI measures: Results from the SOL-INCA MRI study.Alzheimer's & dementia : the journal of the Alzheimer's Association · 2024Article
- Gut microbiota has important roles in the obstructive sleep apnea-induced inflammation and consequent neurocognitive impairment.Frontiers in microbiology · 2024Review
- Older adults at greater risk for Alzheimer's disease show stronger associations between sleep apnea severity and verbal memory.Research square · 2023Article
Corrections and comments
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Authors and funding
10 authors at 1 institution in 1 country.
Funding
Abstract
Introduction: Obstructive sleep apnea (OSA) patients show hippocampal-related autonomic and neurological symptoms, including impaired memory and depression, which differ by sex, and are mediated in distinct hippocampal subfields. Determining sites and extent of hippocampal sub-regional injury in OSA could reveal localized structural damage linked with OSA symptoms. Methods: High-resolution T1-weighted images were collected from 66 newly-diagnosed, untreated OSA (mean age ± SD: 46.3 ± 8.8 years; mean AHI ± SD: 34.1 ± 21.5 events/h;50 male) and 59 healthy age-matched control (46.8 ± 9.0 years;38 male) participants. We added age-matched controls with T1-weighted scans from two datasets (IXI, OASIS-MRI), for 979 controls total (426 male/46.5 ± 9.9 years). We segmented the hippocampus and analyzed surface structure with "FSL FIRST" software, scaling volumes for brain size, and evaluated group differences with ANCOVA (covariates: total-intracranial-volume, sex; P < .05, corrected). Results: In OSA relative to controls, the hippocampus showed small areas larger volume bilaterally in CA1 (surface displacement ≤0.56 mm), subiculum, and uncus, and smaller volume in right posterior CA3/dentate (≥ - 0.23 mm). OSA vs. control males showed higher bilateral volume (≤0.61 mm) throughout CA1 and subiculum, extending to head and tail, with greater right-sided increases; lower bilateral volumes (≥ - 0.45 mm) appeared in mid- and posterior-CA3/dentate. OSA vs control females showed only right-sided effects, with increased CA1 and subiculum/uncus volumes (≤0.67 mm), and decreased posterior CA3/dentate volumes (≥ - 0.52 mm). Unlike males, OSA females showed volume decreases in the right hippocampus head and tail. Conclusions: The hippocampus shows lateralized and sex-specific, OSA-related regional volume differences, which may contribute to sex-related expression of symptoms in the sleep disorder. Volume increases suggest inflammation and glial activation, whereas volume decreases suggest long-lasting neuronal injury; both processes may contribute to dysfunction in OSA.
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