Evidence map›Paper›PMID 23463870›Full record

ArticleJournal of neurology, neurosurgery, and psychiatry2013

Changes to anti-JCV antibody levels in a Swedish national MS cohort.

Clemens Warnke, Ryan Ramanujam, Tatiana Plavina, Tomas Bergström, Susan Goelz, Meena Subramanyam, Ingrid Kockum, Afsar Rahbar, Bernd C Kieseier, Carolina Holmén and 3 more

Open access · hybridAbstract read
In one paragraph

Article in Journal of neurology, neurosurgery, and psychiatry, 2013. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 29 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
29citing papers in PubMed, 1 pooled it
5.5field-weighted citation impact, top 3% 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

29 citing papers in PubMed, 1 synthesis or guideline pooled it, 62 citations in OpenAlex.

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  12. Progressive Multifocal Leukoencephalopathy: Current Insights.Degenerative neurological and neuromuscular disease · 2019
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4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

13 authors at 4 institutions in 3 countries.

Clemens WarnkeDepartment of Clinical Neuroscience, Center for Molecular Medicine, Karolinska Institutet, , Stockholm, Sweden.
Ryan Ramanujam
Tatiana Plavina
Tomas Bergström
Susan Goelz
Meena Subramanyam
Ingrid Kockum
Afsar Rahbar
Bernd C Kieseier
Carolina Holmén
Tomas Olsson
Jan Hillert
Anna Fogdell-Hahn
Karolinska Institutet · SEBiogen (United States) · USHeinrich Heine University Düsseldorf · DEUniversity of Gothenburg · SE

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundThe anti-JC virus (JCV) antibody status has been introduced to stratify patients with multiple sclerosis (MS) for higher or lower risk of progressive multifocal leukoencephalopathy (PML).

objectiveTo assess the potential utility of anti-JCV antibody levels for earlier diagnosis or prediction of PML.

methodsAn analytically validated antibody assay was used to determine serological status, normalised optical density values, and dilution titres for anti-JCV antibodies. The method was applied to stored sera of 1157 patients with MS including five cases of PML, all enrolled in the Swedish pharmacovigilance study for natalizumab (NAT). Anticytomegalovirus (CMV) and antivaricella-zoster (VZV) antibody levels served as controls.

resultsPrior to treatment with NAT, anti-JCV antibody levels were stable in the anti-JCV positive patients. During therapy, a slight decrease in anti-JCV and anti-VZV antibody levels, but not anti-CMV antibody levels, was observed. All five patients who developed PML showed a mild to moderate increase in anti-JCV antibody levels at time of PML diagnosis; pre-PML samples suggested that this increase might start already prior to diagnosis of PML.

conclusionsTreatment initiation with NAT may lead to a slight decrease in anti-JCV and anti-VZV antibody levels, suggestive of a mild suppressive effect of NAT on antibody levels. Our findings in five cases of PML demonstrate that the onset of PML can be accompanied by increasing anti-JCV antibodies in serum. Monitoring of anti-JCV antibody levels could potentially be used as a tool for prediction or earlier diagnosis of PML during NAT treatment for MS. Further studies are warranted.

Indexed as

AdultAntibodies, Monoclonal, HumanizedAntibodies, ViralCytomegalovirusEarly DiagnosisFemaleHerpesvirus 3, HumanHumansInterferonsJC VirusLeukoencephalopathy, Progressive MultifocalMaleMiddle AgedMultiple SclerosisNatalizumabPharmacovigilanceAntibodies, Monoclonal, HumanizedAntibodies, ViralInterferonsNatalizumabINFECTIOUS DISEASESMULTIPLE SCLEROSISNEUROVIROLOGYVIROLOGY

Identifiers

PMID23463870
PMCPMC3812878
OpenAlexW2169676611

What OpenQuestion holds

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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.