Evidence map›Paper›PMID 32509866›Full record

ArticleBioMed research international2020

Deep Gray Matter Iron Content in Neuromyelitis Optica and Multiple Sclerosis.

Adam Pudlac, Andrea Burgetova, Petr Dusek, Petra Nytrova, Manuela Vaneckova, Dana Horakova, Jan Krasensky, Lukas Lambert

Open access · hybridAbstract read
In one paragraph

Article in BioMed research international, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 17 papers, 5 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
17citing papers in PubMed, 5 pooled it
1.6field-weighted citation impact, top 17% 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

17 citing papers in PubMed, 5 syntheses or guidelines pooled it, 25 citations in OpenAlex.

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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

8 authors at 1 institution in 1 country.

Adam PudlacDepartment of Radiology, First Faculty of Medicine, Charles University and General University Hospital in Prague, Katerinska 32, Prague 128 08, Czech Republic.
Andrea BurgetovaDepartment of Radiology, First Faculty of Medicine, Charles University and General University Hospital in Prague, Katerinska 32, Prague 128 08, Czech Republic.ORCID https://orcid.org/0000-0002-9975-2338
Petr DusekDepartment of Neurology and Centre of Clinical Neuroscience, First Faculty of Medicine, Charles University and General University Hospital in Prague, Katerinska 32, Prague 128 08, Czech Republic.
Petra NytrovaDepartment of Neurology and Centre of Clinical Neuroscience, First Faculty of Medicine, Charles University and General University Hospital in Prague, Katerinska 32, Prague 128 08, Czech Republic.
Manuela VaneckovaDepartment of Radiology, First Faculty of Medicine, Charles University and General University Hospital in Prague, Katerinska 32, Prague 128 08, Czech Republic.
Dana HorakovaDepartment of Neurology and Centre of Clinical Neuroscience, First Faculty of Medicine, Charles University and General University Hospital in Prague, Katerinska 32, Prague 128 08, Czech Republic.ORCID https://orcid.org/0000-0003-3054-065X
Jan KrasenskyDepartment of Radiology, First Faculty of Medicine, Charles University and General University Hospital in Prague, Katerinska 32, Prague 128 08, Czech Republic.
Lukas LambertDepartment of Radiology, First Faculty of Medicine, Charles University and General University Hospital in Prague, Katerinska 32, Prague 128 08, Czech Republic.ORCID https://orcid.org/0000-0003-2299-4707
Charles University · CZ

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundNeuromyelitis optica (NMO) and multiple sclerosis (MS) are often presenting with overlapping symptoms. The aim of this study was to determine whether and how NMO and MS differ regarding cerebral iron deposits in deep gray matter (DGM) and the correlation between iron deposition and clinical severity as well as to regional atrophy of the DGM.

methodsWe analyzed 20 patients with NMO, 40 patients with a relapsing-remitting (RR) form of MS, and 20 healthy controls with 1.5T MRI. Quantitative susceptibility mapping (QSM) was performed to estimate iron concentration in the DGM.

resultsPatients with NMO have higher magnetic susceptibility values in the substantia nigra compared to healthy controls. RRMS patients have lower magnetic susceptibility values in the thalamus compared to healthy controls and NMO patients. Atrophy of the thalamus, pulvinar, and putamen is significant both in RRMS compared to NMO patients and healthy controls. A correlation was found between the disability score (EDSS) and magnetic susceptibility in the putamen in RRMS.

conclusionsThis study confirms that a disturbed cerebral iron homeostasis in patients with NMO occurs in different structures than in patients with RRMS. Increased magnetic susceptibility in substantia nigra in NMO and decreased magnetic susceptibility within the thalamus in RRMS were the only significant differences in the study sample. We could confirm that iron concentration in the thalami is decreased in RRMS compared to that in the HC group. Positive association was found between putaminal iron and EDSS in RRMS.

Indexed as

BrainMultiple Sclerosis, Relapsing-RemittingNeuromyelitis OpticaAdultCross-Sectional StudiesFemaleGray MatterHumansIronMaleMiddle AgedIron

Identifiers

PMID32509866
PMCPMC7254083
OpenAlexW3028029225

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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.