Evidence map›Paper›PMID 34345437›Full record

ArticleMultiple sclerosis journal - experimental, translational and clinical

A retrospective analysis of changes in lymphocyte levels in patients with multiple sclerosis during and after Tecfidera® treatment.

Maria-Elizabeth Baeva, Philip Boris Baev, Jill Nelson, Anna Kazimirchik, Galina Vorobeychik

Open access · goldAbstract read
In one paragraph

Article in Multiple sclerosis journal - experimental, translational and clinical. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.

0numbers the graph read from it
0cells of the map it votes in
0citing papers in PubMed
0.2field-weighted citation impact, top 51% 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

0 citing papers in PubMed, 1 citations in OpenAlex.

No citing paper in PubMed yet.

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

5 authors at 1 institution in 1 country.

Maria-Elizabeth BaevaFraser Health Multiple Sclerosis Clinic, Burnaby Hospital, Burnaby Hospital, Burnaby, British Columbia, Canada.ORCID https://orcid.org/0000-0003-3897-0320
Philip Boris BaevFraser Health Multiple Sclerosis Clinic, Burnaby Hospital, Burnaby Hospital, Burnaby, British Columbia, Canada.
Jill NelsonFraser Health Multiple Sclerosis Clinic, Burnaby Hospital, Burnaby Hospital, Burnaby, British Columbia, Canada.
Anna KazimirchikFraser Health Multiple Sclerosis Clinic, Burnaby Hospital, Burnaby Hospital, Burnaby, British Columbia, Canada.
Galina VorobeychikFraser Health Multiple Sclerosis Clinic, Burnaby Hospital, Burnaby Hospital, Burnaby, British Columbia, Canada.
Fraser Health · CA

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundThere are currently no best practice recommendations for lymphocyte subset monitoring for patients with multiple sclerosis (pwMS) on disease-modifying therapies including Tecfidera® (dimethyl fumarate, DMF). However, there have been several cases of pwMS on DMF without severe lymphopenia who had high CD4:CD8 T cell ratios and went on to develop progressive multifocal leukoencephalopathy.

objectiveOur objective was to characterize the changes in immune profile during and after DMF treatment in pwMS.

methodsA retrospective analysis of longitudinal data from 299 pwMS who have been treated with DMF at the Fraser Health Multiple Sclerosis Clinic in British Columbia, Canada. The blood test results were taken from January 1, 2013 to April 1, 2020.

resultsOur results suggest that CD8+ T cells had the highest proportional decrease compared to other lymphocyte subset populations and overall lymphocyte count in response to DMF treatment. CD56+ Natural Killer cells were similarly decreased in response to DMF treatment. CD4:CD8 T cell ratio was the measurement that had the highest rate of change in response to DMF initiation and discontinuation.

conclusionCD8+ T cell count and CD4:CD8 T cell ratio may be a more sensitive measurement of the immune landscape of patients with MS on DMF.

Indexed as

allergy and immunologydimethyl fumaratekiller cellslymphocytesMultiple sclerosisnaturalt-lymphocytes

Identifiers

PMID34345437
PMCPMC8283074
OpenAlexW3186009020

What OpenQuestion holds

Textmetadata
LicenceCC BY-NC
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.