ArticleFluids and barriers of the CNS2023
Disentangling the impact of cerebrospinal fluid formation and neuronal activity on solute clearance from the brain.
Article in Fluids and barriers of the CNS, 2023. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 5 papers.
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Who cites it
5 citing papers in PubMed, 6 citations in OpenAlex.
- MRI-based evidence of rectus capitis posterior minor hypertrophy and its correlation with disease duration in Parkinson's disease.BMC medical imaging · 2026Article
- Integrating brain organoids, meningeal immunity, and glymphatic dynamics: toward modeling neuroimmune clearance and crosstalk in disease.Frontiers in immunology · 2026Review
- Meningeal lymphatic dysfunction drives cognitive impairment after experimental subarachnoid hemorrhage.Neurotherapeutics : the journal of the American Society for Experimental NeuroTherapeutics · 2026Article
- Isoflurane anesthesia alters 31P magnetic resonance spectroscopy markers compared to awake mouse brain.PloS one · 2025Article
- Repetitive head trauma and apoE4 induce chronic cerebrovascular alterations that impair tau elimination from the brain.Experimental neurology · 2024Article
Corrections and comments
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Authors and funding
6 authors at 2 institutions in 2 countries.
Funding
Abstract
backgroundDespite recent attention, pathways and mechanisms of fluid transposition in the brain are still a matter of intense discussion and driving forces underlying waste clearance in the brain remain elusive. Consensus exists that net solute transport is a prerequisite for efficient clearance. The individual impact of neuronal activity and cerebrospinal fluid (CSF) formation, which both vary with brain state and anesthesia, remain unclear.
methodsTo separate conditions with high and low neuronal activity and high and low CSF formation, different anesthetic regimens in naive rat were established, using Isoflurane (ISO), Medetomidine (MED), acetazolamide or combinations thereof. With dynamic contrast-enhanced MRI, after application of low molecular weight contrast agent (CA) Gadobutrol to cisterna magna, tracer distribution was monitored as surrogate for solute clearance. Simultaneous fiber-based Ca
resultsAnatomical imaging, DWI and Ca
conclusionsEfficiency of solute clearance in brain changes with alterations in both state of neuronal activity and CSF formation. Our clearance pathway and mechanism agnostic kinetic model informs about net solute transport, solely based on the measured time signal curves. This rather simplifying approach largely accords with preclinical and clinical findings.
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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.