Evidence map›Paper›PMID 38273331›Full record

ArticleFluids and barriers of the CNS2024

CSF hyperdynamics in rats mimicking the obesity and androgen excess characteristic of patients with idiopathic intracranial hypertension.

Jonathan H Wardman, Søren Norge Andreassen, Trine L Toft-Bertelsen, Mette Nyholm Jensen, Jens E Wilhjelm, Bjarne Styrishave, Steffen Hamann, Steffen Heegaard, Alexandra J Sinclair, Nanna MacAulay

Open access · goldAbstract read
In one paragraph

Article in Fluids and barriers of the CNS, 2024. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 8 papers.

0numbers the graph read from it
0cells of the map it votes in
8citing papers in PubMed
4.1field-weighted citation impact, top 6% 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

8 citing papers in PubMed, 11 citations in OpenAlex.

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  6. The NaAdvanced science (Weinheim, Baden-Wurttemberg, Germany) · 2025
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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

10 authors at 3 institutions in 2 countries.

Jonathan H WardmanDepartment of Neuroscience, University of Copenhagen, Blegdamsvej 3, Copenhagen, DK-2200, Denmark.
Søren Norge AndreassenDepartment of Neuroscience, University of Copenhagen, Blegdamsvej 3, Copenhagen, DK-2200, Denmark.
Trine L Toft-BertelsenDepartment of Neuroscience, University of Copenhagen, Blegdamsvej 3, Copenhagen, DK-2200, Denmark.
Mette Nyholm JensenDepartment of Neuroscience, University of Copenhagen, Blegdamsvej 3, Copenhagen, DK-2200, Denmark.
Jens E WilhjelmDepartment of Neurophysiology, Rigshospitalet, Copenhagen, Denmark.
Bjarne StyrishaveDepartment of Pharmacy, University of Copenhagen, Copenhagen, Denmark.
Steffen HamannDepartment of Ophthalmology, Rigshospitalet, Copenhagen, Denmark.
Steffen HeegaardDepartment of Ophthalmology, Rigshospitalet, Copenhagen, Denmark.
Alexandra J SinclairInstitute of Metabolism and Systems Research, College of Medical and Dental Sciences, University of Birmingham, Birmingham, UK.
Nanna MacAulayDepartment of Neuroscience, University of Copenhagen, Blegdamsvej 3, Copenhagen, DK-2200, Denmark. macaulay@sund.ku.dk.ORCID http://orcid.org/0000-0002-7800-6600
University of Copenhagen · DKRigshospitalet · DKUniversity of Birmingham · GB

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundIdiopathic intracranial hypertension (IIH) is a syndrome exhibiting elevated intracranial pressure (ICP), visual disturbances, and severe headache. IIH primarily affects young obese women, though it can occur in individuals of any age, BMI, and sex. IIH is characterized by systemic metabolic dysregulation with a profile of increased androgen hormones. However, the contribution of obesity/hormonal perturbations to cerebrospinal fluid (CSF) dynamics remains unresolved.

methodsWe employed obese female Zucker rats and adjuvant testosterone to reveal IIH causal drivers. ICP and CSF dynamics were determined with in vivo experimentation and magnetic resonance imaging, testosterone levels assessed with mass spectrometry, and choroid plexus function revealed with transcriptomics.

resultsObese rats had undisturbed CSF testosterone levels and no changes in ICP or CSF dynamics. Adjuvant testosterone treatment of obese rats elevated the CSF secretion rate, although with no effect on the ICP, due to elevated CSF drainage capacity of these rats.

conclusionsObesity in itself therefore does not suffice to recapitulate the IIH symptoms in rats, but modulation of CSF dynamics appears with adjuvant testosterone treatment, which mimics the androgen excess observed in female IIH patients. Obesity-induced androgen dysregulation may thus contribute to the disease mechanism of IIH and could potentially serve as a future therapeutic target.

Indexed as

Pseudotumor CerebriAndrogensAnimalsFemaleHumansObesityRatsRats, ZuckerTestosteroneAndrogensTestosteroneCerebrospinal fluidChoroid plexusIIHIntracranial pressureSex hormonesTestosteroneTranscriptomics

Identifiers

PMID38273331
PMCPMC10810013
OpenAlexW4391224557

What OpenQuestion holds

Textmetadata
LicenceCC BY
Read underepoch 390

Registered trials

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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.