Evidence map›Paper›PMID 36469302›Full record

ArticleThe Journal of experimental medicine2023

Arachnoid granulations are lymphatic conduits that communicate with bone marrow and dura-arachnoid stroma.

Trishna Shah, Sue E Leurgans, Rashi I Mehta, Jingyun Yang, Chad A Galloway, Karen L de Mesy Bentley, Julie A Schneider, Rupal I Mehta

Open access · hybridAbstract read
In one paragraph

Article in The Journal of experimental medicine, 2023. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 72 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
72citing papers in PubMed, 1 pooled it
7.9field-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.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

72 citing papers in PubMed, 1 synthesis or guideline pooled it, 90 citations in OpenAlex.

  1. Giant Arachnoid Granulations: A Systematic Literature Review.International journal of molecular sciences · 2023
    Pooled it
  2. Review
  3. Arachnoid granulation morphologies and β-amyloid and tau pathology in older adults.Alzheimer's & dementia : the journal of the Alzheimer's Association · 2026
    Article
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  16. Clonal CD8Nature immunology · 2026
    Article
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  20. Article

12 more citing papers are in PubMed but not listed here.

4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

8 authors at 3 institutions in 1 country.

Trishna ShahRush Alzheimer's Disease Center, Rush University Medical Center, Chicago, IL.ORCID 0000-0001-6841-2480
Sue E LeurgansRush Alzheimer's Disease Center, Rush University Medical Center, Chicago, IL.ORCID 0000-0003-2536-1665
Rashi I MehtaDepartment of Neuroradiology, Rockefeller Neuroscience Institute, West Virginia University, Morgantown, WV.ORCID 0000-0002-2532-7435
Jingyun YangRush Alzheimer's Disease Center, Rush University Medical Center, Chicago, IL.ORCID 0000-0002-3495-3710
Chad A GallowayDepartment of Pathology, University of Rochester Medical Center, Rochester, NY.ORCID 0000-0002-1978-7339
Karen L de Mesy BentleyDepartment of Pathology, University of Rochester Medical Center, Rochester, NY.ORCID 0000-0003-0176-1111
Julie A SchneiderRush Alzheimer's Disease Center, Rush University Medical Center, Chicago, IL.ORCID 0000-0002-9482-1752
Rupal I MehtaRush Alzheimer's Disease Center, Rush University Medical Center, Chicago, IL.ORCID 0000-0003-4917-6907
Rush University Medical Center · USUniversity of Rochester Medical Center · USWest Virginia University · US

Funding

Arachnoid Granulation Senescence in Aging, CAA and Alzheimer's DiseaseR21AG079221 · NIA · RUSH UNIVERSITY MEDICAL CENTER · PI MEHTA, RUPAL I. · 2022 to 2022
$435k
NIA NIH HHS R21 AG079221
6 · The paper itself

Abstract

Arachnoid granulations (AG) are poorly investigated. Historical reports suggest that they regulate brain volume by passively transporting cerebrospinal fluid (CSF) into dural venous sinuses. Here, we studied the microstructure of cerebral AG in humans with the aim of understanding their roles in physiology. We discovered marked variations in AG size, lobation, location, content, and degree of surface encapsulation. High-resolution microscopy shows that AG consist of outer capsule and inner stromal core regions. The fine and porous framework suggests uncharacterized functions of AG in mechanical CSF filtration. Moreover, internal cytokine and immune cell enrichment imply unexplored neuroimmune properties of these structures that localize to the brain-meningeal lymphatic interface. Dramatic age-associated changes in AG structure are additionally identified. This study depicts for the first time microscopic networks of internal channels that communicate with perisinus spaces, suggesting that AG subserve important functions as transarachnoidal flow passageways. These data raise new theories regarding glymphatic-lymphatic coupling and mechanisms of CSF antigen clearance, homeostasis, and diseases.

Indexed as

Bone MarrowLymphatic VesselsArachnoidDura MaterHumansLymphatic System

Identifiers

PMID36469302
PMCPMC9728136
OpenAlexW4310958449

What OpenQuestion holds

Textmetadata
LicenceCC BY
Read underepoch 390

Registered trials

None linked

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.