Evidence map›Paper›PMID 35524506›Full record

ArticleEuropean journal of neurology2022

Concordance of cerebrospinal fluid real-time quaking-induced conversion across the European Creutzfeldt-Jakob Disease Surveillance Network.

Neil McKenzie, Gabriele Piconi, Audrey Culeux, Anna-Lena Hammarin, Christos Stergiou, Socrates Tzartos, Alexandra A M Versleijen, Jacqueline van de Geer, Patrick Cras, Franco Cardone and 28 more

Abstract read
In one paragraph

Article in European journal of neurology, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 9 papers.

0numbers the graph read from it
0cells of the map it votes in
9citing 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

9 citing papers in PubMed.

  1. Article
  2. Review
  3. Review
  4. Article
  5. Article
  6. Article
  7. Article
  8. Article
  9. Incidence of Sporadic Creutzfeldt-Jakob Disease in the Emergency Department.American journal of Alzheimer's disease and other dementias
    Article
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

38 authors.

Neil McKenzieNational CJD Research and Surveillance Unit, Centre for Clinical Brain Sciences, University of Edinburgh, Edinburgh, UK.
Gabriele PiconiNational CJD Research and Surveillance Unit, Centre for Clinical Brain Sciences, University of Edinburgh, Edinburgh, UK.
Audrey CuleuxSorbonne Université, Institut du Cerveau-Paris Brain Institute, ICM, Inserm, CNRS, APHP, Hôpital de la Pitié Salpêtrière, Paris, France.
Anna-Lena HammarinPublic Health Agency of Sweden, Solna, Sweden.
Christos StergiouTzartos NeuroDiagnostics, Athens, Greece.
Socrates TzartosTzartos NeuroDiagnostics, Athens, Greece.
Alexandra A M VersleijenNeurochemistry Laboratory-Translational Metabolic Laboratory, Department of Laboratory Medicine, Radboud University Medical Centre, Nijmegen, The Netherlands.
Jacqueline van de GeerNeurochemistry Laboratory-Translational Metabolic Laboratory, Department of Laboratory Medicine, Radboud University Medical Centre, Nijmegen, The Netherlands.
Patrick CrasLaboratory of Neurology, University of Antwerp, Antwerp, Belgium.
Franco CardoneDepartment of Neuroscience, Istituto Superiore di Sanità, Rome, Italy.
Anna LadoganaDepartment of Neuroscience, Istituto Superiore di Sanità, Rome, Italy.
Angela MannanaLaboratory of Neuropathology, IRCCS Istituto delle Scienze Neurologiche, Bologna, Italy.
Marcello RossiLaboratory of Neuropathology, IRCCS Istituto delle Scienze Neurologiche, Bologna, Italy.
Matilde BongianniNeuropathology Laboratory, University of Verona, Verona, Italy.
Daniela PerraNeuropathology Laboratory, University of Verona, Verona, Italy.
Guenther RegelsbergerDivision of Neuropathology and Neurochemistry, Department of Neurology, Medical University of Vienna, Vienna, Austria.
Sigrid KlotzDivision of Neuropathology and Neurochemistry, Department of Neurology, Medical University of Vienna, Vienna, Austria.
Simone HornemannInstitute of Neuropathology, University Hospital of Zurich, Zürich, Switzerland.
Adriano AguzziInstitute of Neuropathology, University Hospital of Zurich, Zürich, Switzerland.
Matthias SchmitzNational Reference Center for Transmissible Spongiform Encephalopathies, Göttingen, Germany.
Mary AndrewsNational CJD Research and Surveillance Unit, Centre for Clinical Brain Sciences, University of Edinburgh, Edinburgh, UK.
Kimberley BurnsNational CJD Research and Surveillance Unit, Centre for Clinical Brain Sciences, University of Edinburgh, Edinburgh, UK.
Stéphane HaïkSorbonne Université, Institut du Cerveau-Paris Brain Institute, ICM, Inserm, CNRS, APHP, Hôpital de la Pitié Salpêtrière, Paris, France.
Raquel Ruiz-GarcíaImmunology Department, Biomedical Diagnostic Centre, Hospital Clinic de Barcelona, Barcelona, Spain.
Jenny Verner-CarlssonPublic Health Agency of Sweden, Solna, Sweden.
John TzartosTzartos NeuroDiagnostics, Athens, Greece.ORCID 0000-0001-7948-034X
Marcel M VerbeekNeurochemistry Laboratory-Translational Metabolic Laboratory, Department of Laboratory Medicine, Radboud University Medical Centre, Nijmegen, The Netherlands.
Bart De VilLaboratory of Neurology, University of Antwerp, Antwerp, Belgium.ORCID 0000-0003-1924-2029
Anna PoleggiDepartment of Neuroscience, Istituto Superiore di Sanità, Rome, Italy.
Piero ParchiLaboratory of Neuropathology, IRCCS Istituto delle Scienze Neurologiche, Bologna, Italy.ORCID 0000-0002-9444-9524
Gianluigi ZanussoNeuropathology Laboratory, University of Verona, Verona, Italy.
Ellen GelpiDivision of Neuropathology and Neurochemistry, Department of Neurology, Medical University of Vienna, Vienna, Austria.
Karl FrontzekInstitute of Neuropathology, University Hospital of Zurich, Zürich, Switzerland.
Regina ReimannInstitute of Neuropathology, University Hospital of Zurich, Zürich, Switzerland.
Peter HermannNational Reference Center for Transmissible Spongiform Encephalopathies, Göttingen, Germany.ORCID 0000-0003-1889-8325
Inga ZerrNational Reference Center for Transmissible Spongiform Encephalopathies, Göttingen, Germany.
Suvankar PalNational CJD Research and Surveillance Unit, Centre for Clinical Brain Sciences, University of Edinburgh, Edinburgh, UK.
Alison GreenNational CJD Research and Surveillance Unit, Centre for Clinical Brain Sciences, University of Edinburgh, Edinburgh, UK.ORCID 0000-0003-1858-6751

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

background and purposeCerebrospinal fluid (CSF) real-time quaking-induced conversion (RT-QuIC) has a high degree of sensitivity and specificity for the diagnosis of sporadic Creutzfeldt-Jakob disease (sCJD) and this has led to its being included in revised European CJD Surveillance Network diagnostic criteria for sCJD. As CSF RT-QuIC becomes more widely established, it is crucial that the analytical performance of individual laboratories is consistent. The aim of this ring-trial was to ascertain the degree of concordance between European countries undertaking CSF RT-QuIC.

methodsTen identical CSF samples, seven from probable or neuropathologically confirmed sCJD and three from non-CJD cases, were sent to 13 laboratories from 11 countries for RT-QuIC analysis. A range of instrumentation and different recombinant prion protein substrates were used. Each laboratory analysed the CSF samples blinded to the diagnosis and reported the results as positive or negative.

resultsAll 13 laboratories correctly identified five of the seven sCJD cases and the remaining two sCJD cases were identified by 92% of laboratories. Of the two sCJD cases that were not identified by all laboratories, one had a disease duration >26 months with a negative 14-3-3, whilst the remaining case had a 4-month disease duration and a positive 14-3-3. A single false positive CSF RT-QuIC result was observed in this study.

conclusionsThis study shows that CSF RT-QuIC demonstrates an excellent concordance between centres, even when using a variety of instrumentation, recombinant prion protein substrates and CSF volumes. The adoption of CSF RT-QuIC by all CJD surveillance centres is recommended.

Indexed as

Creutzfeldt-Jakob SyndromePrionsHumansPrion ProteinsRecombinant ProteinsSensitivity and SpecificityPrion ProteinsPrionsRecombinant Proteinscerebrospinal fluidCreutzfeldt-Jakob diseaseprionreal-time quaking-induced conversion

Identifiers

PMID35524506
PMCPMC9543645

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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.