Evidence map›Paper›PMID 32709911›Full record

ArticleScientific reports2020

A blood-based metabolomics test to distinguish relapsing-remitting and secondary progressive multiple sclerosis: addressing practical considerations for clinical application.

Tianrong Yeo, Megan Sealey, Yifan Zhou, Luisa Saldana, Samantha Loveless, Timothy D W Claridge, Neil Robertson, Gabriele DeLuca, Jacqueline Palace, Daniel C Anthony and 1 more

Abstract read
In one paragraph

Article in Scientific reports, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 15 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
15citing papers in PubMed, 1 pooled it
–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

15 citing papers in PubMed, 1 synthesis or guideline pooled it.

  1. Pooled it
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  4. PlasmaNeurology(R) neuroimmunology & neuroinflammation · 2025
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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

11 authors.

Tianrong YeoDepartment of Pharmacology, University of Oxford, Mansfield Road, Oxford, OX1 3QT, UK.
Megan SealeyDepartment of Pharmacology, University of Oxford, Mansfield Road, Oxford, OX1 3QT, UK.
Yifan ZhouDepartment of Pharmacology, University of Oxford, Mansfield Road, Oxford, OX1 3QT, UK.
Luisa SaldanaNuffield Department of Clinical Neurosciences, Level 6, West Wing, John Radcliffe Hospital, University of Oxford, Headley Way, Oxford, OX3 9DU, UK.
Samantha LovelessDivision of Psychological Medicine and Clinical Neuroscience, School of Medicine, University Hospital of Wales, Cardiff University, Cardiff, CF14 4XN, UK.
Timothy D W ClaridgeChemistry Research Laboratory, Department of Chemistry, University of Oxford, Mansfield Road, Oxford, OX1 3TA, UK.
Neil RobertsonDivision of Psychological Medicine and Clinical Neuroscience, School of Medicine, University Hospital of Wales, Cardiff University, Cardiff, CF14 4XN, UK.
Gabriele DeLucaNuffield Department of Clinical Neurosciences, Level 6, West Wing, John Radcliffe Hospital, University of Oxford, Headley Way, Oxford, OX3 9DU, UK.
Jacqueline PalaceNuffield Department of Clinical Neurosciences, Level 6, West Wing, John Radcliffe Hospital, University of Oxford, Headley Way, Oxford, OX3 9DU, UK.
Daniel C AnthonyDepartment of Pharmacology, University of Oxford, Mansfield Road, Oxford, OX1 3QT, UK.
Fay ProbertDepartment of Pharmacology, University of Oxford, Mansfield Road, Oxford, OX1 3QT, UK. fay.probert@pharm.ox.ac.uk.

Funding

Medical Research Council MC_PC_15029Medical Research Council MR/L010305/1
6 · The paper itself

Abstract

The transition from relapsing-remitting multiple sclerosis (RRMS) to secondary progressive MS (SPMS) represents a huge clinical challenge. We previously demonstrated that serum metabolomics could distinguish RRMS from SPMS with high diagnostic accuracy. As differing sample-handling protocols can affect the blood metabolite profile, it is vital to understand which factors may influence the accuracy of this metabolomics-based test in a clinical setting. Herein, we aim to further validate the high accuracy of this metabolomics test and to determine if this is maintained in a 'real-life' clinical environment. Blood from 31 RRMS and 28 SPMS patients was subjected to different sample-handling protocols representing variations encountered in clinics. The effect of freeze-thaw cycles (0 or 1) and time to erythrocyte removal (30, 120, or 240 min) on the accuracy of the test was investigated. For test development, samples from the optimised protocol (30 min standing time, 0 freeze-thaw) were used, resulting in high diagnostic accuracy (mean ± SD, 91.0 ± 3.0%). This test remained able to discriminate RRMS and SPMS samples that had experienced additional freeze-thaw, and increased standing times of 120 and 240 min with accuracies ranging from 85.5 to 88.0%, because the top discriminatory metabolite biomarkers from the optimised protocol remained discriminatory between RRMS and SPMS despite these sample-handling variations. In conclusion, while strict sample-handling is essential for the development of metabolomics-based blood tests, the results confirmed that the RRMS vs. SPMS test is resistant to sample-handling variations and can distinguish these two MS stages in the clinics.

Indexed as

MetabolomicsAdultDiagnosis, DifferentialFemaleHumansMaleMiddle AgedMultiple Sclerosis, Chronic ProgressiveMultiple Sclerosis, Relapsing-Remitting

Identifiers

PMID32709911
PMCPMC7381627

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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.