Evidence map›Paper›PMID 29127332›Full record

ArticleNature communications2017

Outflow of cerebrospinal fluid is predominantly through lymphatic vessels and is reduced in aged mice.

Qiaoli Ma, Benjamin V Ineichen, Michael Detmar, Steven T Proulx

Registry-linked trialOpen access · goldAbstract read
In one paragraph

Article in Nature communications, 2017. The graph could read no effect estimate from its abstract, so it casts no vote on the map. It is linked to trial NCT05762367 (MR Lymphatic Imaging in Idiopathic Intracranial Hypertension), which is not on this map. Cited by 441 papers, 4 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
441citing papers in PubMed, 4 pooled it
19.8field-weighted citation impact, top 1% of its field
1 · What the graph read from it

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.

2 · The registry

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.

NCT05762367 nacompletednot on this mapstarted 2023, after this paper: background citation

MR Lymphatic Imaging in Idiopathic Intracranial Hypertension

TypeinterventionalSponsorInstitut National de la Santé Et de la Recherche Médicale, FranceRan2023 to 2025Enrolled40ConditionsIdiopathic Intracranial HypertensionArms3T MRI with Gadobutrol injection
3 · Its place in the literature

Who cites it

441 citing papers in PubMed, 4 syntheses or guidelines pooled it, 694 citations in OpenAlex.

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  19. Mapping subarachnoid cerebrospinal fluid circulation in the human brain.bioRxiv : the preprint server for biology · 2026
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381 more citing papers are in PubMed but not listed here.

4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

4 authors at 2 institutions in 1 country.

Qiaoli MaInstitute of Pharmaceutical Sciences, Swiss Federal Institute of Technology, ETH Zurich, 8093, Zurich, Switzerland.
Benjamin V IneichenBrain Research Institute, University of Zurich, 8057, Zurich, Switzerland.
Michael DetmarInstitute of Pharmaceutical Sciences, Swiss Federal Institute of Technology, ETH Zurich, 8093, Zurich, Switzerland.ORCID http://orcid.org/0000-0002-5351-5054
Steven T ProulxInstitute of Pharmaceutical Sciences, Swiss Federal Institute of Technology, ETH Zurich, 8093, Zurich, Switzerland. steven.proulx@pharma.ethz.ch.ORCID http://orcid.org/0000-0003-2154-8502
ETH Zurich · CHUniversity of Zurich · CH

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Cerebrospinal fluid (CSF) has been commonly accepted to drain through arachnoid projections from the subarachnoid space to the dural venous sinuses. However, a lymphatic component to CSF outflow has long been known. Here, we utilize lymphatic-reporter mice and high-resolution stereomicroscopy to characterize the anatomical routes and dynamics of outflow of CSF. After infusion into a lateral ventricle, tracers spread into the paravascular spaces of the pia mater and cortex of the brain. Tracers also rapidly reach lymph nodes using perineural routes through foramina in the skull. Using noninvasive imaging techniques that can quantify the transport of tracers to the blood and lymph nodes, we find that lymphatic vessels are the major outflow pathway for both large and small molecular tracers in mice. A significant decline in CSF lymphatic outflow is found in aged compared to young mice, suggesting that the lymphatic system may represent a target for age-associated neurological conditions.

Indexed as

AgingAnimalsArachnoidBrainCerebrospinal FluidColoring AgentsFemaleLymphatic SystemLymphatic VesselsMiceMice, Inbred C57BLMice, TransgenicColoring Agents

Identifiers

PMID29127332
PMCPMC5681558
OpenAlexW2768030986

What OpenQuestion holds

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LicenceCC BY
Read underepoch 390

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.