ArticleSleep2026
Could positive airway pressure enhance brain waste clearance and modify neurodegenerative risk? A perspective on sleep-dependent cerebrospinal fluid-lymphatic pathways.
Article in Sleep, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 1 paper.
What it found
Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.
The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
The trial behind it
Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.
Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.
Who cites it
1 citing paper in PubMed.
- Network mechanisms of glymphatic system dysfunction in the disruption of the "brain-lung axis".Frontiers in neurology · 2026Review
Corrections and comments
PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.
Authors and funding
1 author.
Funding
No grant is acknowledged in the PubMed record.
Abstract
Obstructive sleep apnea is linked to cognitive decline and is increasingly implicated in neurodegenerative trajectories. Continuous positive airway pressure, the most common form of positive airway pressure used to treat obstructive sleep apnea, improves breathing and sleep continuity, yet cognitive outcomes, as well as reports of rapid eye movement sleep behavior disorder manifestations in comorbid obstructive sleep apnea, remain heterogeneous. In parallel, the last decade has reframed sleep as an active state for brain fluid transport, in which cerebrospinal fluid movement, vascular and respiratory mechanics, and extracranial lymphatic drainage jointly influence the clearance of potentially neurotoxic solutes (e.g. amyloid-β). This Perspective advances a testable, conditional hypothesis: beyond correcting hypoxemia and sleep fragmentation, positive airway pressure (and specifically continuous positive airway pressure) may modulate cerebrospinal fluid-lymphatic clearance by changing upper-airway pressure gradients, intrathoracic pressure swings, craniovenous pulsatility, and extracranial lymphatic outflow mechanics. This Perspective also reviews counterevidence, including human physiologic data showing reduced cerebrospinal fluid stroke volume under higher-pressure continuous positive airway pressure during wakefulness and persistent heterogeneity in cognitive outcomes. This Perspective proposes a mechanistic framework that separates (1) event suppression (restored consolidated sleep), (2) pressure-dependent cerebrospinal fluid/venous coupling, and (3) route-dependent extracranial lymphatic outflow as partially independent modules. Finally, this Perspective outlines a focused research agenda integrating polysomnography, fast neuroimaging, perivascular transport metrics (e.g. diffusion tensor imaging-analysis along the perivascular space), and cerebrospinal fluid/blood biomarkers to determine when, for whom, and through which pathways positive airway pressure could exert neuroprotective effects.
Indexed as
Identifiers
What OpenQuestion holds
Registered trials
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 OpenQuestion graph.