Evidence map›Paper›PMID 41874037›Full record

ReviewNeuroSci2026

Slowly Expanding Lesions in Multiple Sclerosis: A Systematic Review and Meta-Analysis.

Mohammad Yazdan Panah, Mehra Fekri, Zahra Zahedi, Hossein Bagheri, Saeed Vaheb, Farhad Mahmoudi, Vahid Shaygannejad, Omid Mirmosayyeb

Abstract readReview
In one paragraph

Review in NeuroSci, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 2 papers.

0numbers the graph read from it
0cells of the map it votes in
2citing papers in PubMed
–field-weighted citation impact
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

2 citing papers in PubMed.

  1. Article
  2. Astrocytes in Multiple Sclerosis: Getting to the Core.International journal of molecular sciences · 2026
    Review
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.

Mohammad Yazdan PanahIsfahan Neurosciences Research Center, Isfahan University of Medical Sciences, Isfahan 81839-83434, Iran.ORCID 0000-0001-9112-9544
Mehra FekriIsfahan Neurosciences Research Center, Isfahan University of Medical Sciences, Isfahan 81839-83434, Iran.
Zahra ZahediIsfahan Neurosciences Research Center, Isfahan University of Medical Sciences, Isfahan 81839-83434, Iran.
Hossein BagheriIsfahan Neurosciences Research Center, Isfahan University of Medical Sciences, Isfahan 81839-83434, Iran.
Saeed VahebIsfahan Neurosciences Research Center, Isfahan University of Medical Sciences, Isfahan 81839-83434, Iran.ORCID 0000-0001-5738-7419
Farhad MahmoudiDepartment of Neurology, University of Miami, Miami, FL 33136, USA.ORCID 0000-0002-9736-0760
Vahid ShaygannejadIsfahan Neurosciences Research Center, Isfahan University of Medical Sciences, Isfahan 81839-83434, Iran.
Omid MirmosayyebIsfahan Neurosciences Research Center, Isfahan University of Medical Sciences, Isfahan 81839-83434, Iran.ORCID 0000-0002-3756-2985

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundSlowly expanding lesions (SELs) have been introduced as a radiological marker of chronic active demyelination and smoldering inflammation. These lesions are recognized as indicators of disability worsening and brain atrophy in people with multiple sclerosis (PwMS). We aimed to provide an overview of the available evidence on the prevalence and clinical relevance of SELs in PwMS.

methodsPubMed, Embase, Scopus, and Web of Science were systematically searched up to 25 May 2025, to identify studies evaluating SELs in PwMS. Risk of bias was assessed using the Newcastle-Ottawa Scale. We conducted a thorough review to evaluate the clinical relevance of SELs in MS. Additionally, a meta-analysis was performed using R software to estimate the pooled prevalence of SELs in MS.

resultsTwenty studies on 4970 PwMS met the inclusion criteria. Meta-analysis indicated that the pooled prevalence of SELs in PwMS was 57.1% (95% CI: 44.9% to 69.3%). Moreover, the systematic review showed that SELs were associated with chronic neuroinflammation, ongoing demyelination, disability, microstructural damage, and axonal degeneration. Intervention studies also indicated that the number and volume of SELs were decreased following the administration of disease-modifying therapies.

conclusionsSELs are revealed to affect around half of PwMS and are associated with disability and disease progression in MS. These results highlight the potential role of SELs as a critical radiomarker in MS. However, future studies are warranted to validate these preliminary findings.

Indexed as

magnetic resonance imagingmultiple sclerosisslowly expanding lesion

Identifiers

PMID41874037
PMCPMC13010691

What OpenQuestion holds

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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.