Evidence map›Paper›PMID 36036510›Full record

ArticlemBio2022

Dysfunctional Glymphatic System with Disrupted Aquaporin 4 Expression Pattern on Astrocytes Causes Bacterial Product Accumulation in the CSF during Pneumococcal Meningitis.

Jaqueline S Generoso, Sigrun Thorsdottir, Allan Collodel, Diogo Dominguini, Roberta R E Santo, Fabricia Petronilho, Tatiana Barichello, Federico Iovino

Open access · goldAbstract read
In one paragraph

Article in mBio, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 22 papers.

0numbers the graph read from it
0cells of the map it votes in
22citing papers in PubMed
2.7field-weighted citation impact, top 9% 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

22 citing papers in PubMed, 29 citations in OpenAlex.

  1. Article
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  7. Future microbiology · 2025
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  11. Article
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  19. Neurochemical effects of sepsis on the brain.Clinical science (London, England : 1979) · 2023
    Article
  20. Review
4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

8 authors at 2 institutions in 2 countries.

Jaqueline S Generoso *Laboratory of Experimental Neurology, Graduate Program in Health Sciences, University of Southern Santa Catarina (UNESC), Criciúma, Santa Catarina, Brazil.
Sigrun Thorsdottir *Department of Neuroscience, Karolinska Institutegrid.4714.6t, Biomedicum, Stockholm, Sweden.
Allan CollodelLaboratory of Experimental Pathophysiology, Graduate Program in Health Sciences, University of Southern Santa Catarina (UNESC), Criciúma, Santa Catarina, Brazil.
Diogo DominguiniLaboratory of Experimental Pathophysiology, Graduate Program in Health Sciences, University of Southern Santa Catarina (UNESC), Criciúma, Santa Catarina, Brazil.
Roberta R E SantoLaboratory of Experimental Pathophysiology, Graduate Program in Health Sciences, University of Southern Santa Catarina (UNESC), Criciúma, Santa Catarina, Brazil.
Fabricia PetronilhoLaboratory of Experimental Neurology, Graduate Program in Health Sciences, University of Southern Santa Catarina (UNESC), Criciúma, Santa Catarina, Brazil.
Tatiana Barichello *Laboratory of Experimental Pathophysiology, Graduate Program in Health Sciences, University of Southern Santa Catarina (UNESC), Criciúma, Santa Catarina, Brazil.
Federico Iovino *Department of Neuroscience, Karolinska Institutegrid.4714.6t, Biomedicum, Stockholm, Sweden.ORCID 0000-0001-5249-9120
Karolinska Institutet · SEThe University of Texas Health Science Center at Houston · US

Funding

Infection-driven mechanisms associated with Alzheimer's disease pathologyRF1AG072491 · NIA · UNIVERSITY OF TEXAS HLTH SCI CTR HOUSTON · PI BARICHELLO, TATIANA, MORALES, RODRIGO · 2021 to 2021
$2.0M
Infection-driven mechanisms associated with Alzheimer's disease pathologyR01AG072491 · NIA · UNIVERSITY OF TEXAS HLTH SCI CTR HOUSTON · PI BARICHELLO, TATIANA, MORALES, RODRIGO · 2024 to 2025
$1.2M
NIA NIH HHS R01 AG072491NIA NIH HHS RF1 AG072491
6 · The paper itself

Abstract

Pneumococcal meningitis, inflammation of the meninges due to an infection of the Central Nervous System caused by Streptococcus pneumoniae (the pneumococcus), is the most common form of community-acquired bacterial meningitis globally. Aquaporin 4 (AQP4) water channels on astrocytic end feet regulate the solute transport of the glymphatic system, facilitating the exchange of compounds between the brain parenchyma and the cerebrospinal fluid (CSF), which is important for the clearance of waste away from the brain. Wistar rats, subjected to either pneumococcal meningitis or artificial CSF (sham control), received Evans blue-albumin (EBA) intracisternally. Overall, the meningitis group presented a significant impairment of the glymphatic system by retaining the EBA in the CSF compartments compared to the uninfected sham group. Our results clearly showed that during pneumococcal meningitis, the glymphatic system does not function because of a detachment of the astrocytic end feet from the blood-brain barrier (BBB) vascular endothelium, which leads to misplacement of AQP4 with the consequent loss of the AQP4 water channel's functionality.

Indexed as

Glymphatic SystemMeningitis, PneumococcalAlbuminsAnimalsAquaporin 4AstrocytesBrainRatsRats, WistarAlbuminsAqp4 protein, ratAquaporin 4aquaporin 4astrocytic end feetblood-brain barrier (BBB)glymphatic systemmeningitisneuroinflammationneuronal damageStreptococcus pneumoniae

Identifiers

PMID36036510
PMCPMC9600563
OpenAlexW4293452542

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.