Evidence map›Paper›PMID 31801546›Full record

ArticleJournal of translational medicine2019

Circulating levels of GDF15 in patients with myalgic encephalomyelitis/chronic fatigue syndrome.

A Melvin, E Lacerda, H M Dockrell, S O'Rahilly, L Nacul

Open access · goldAbstract read
In one paragraph

Article in Journal of translational medicine, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 16 papers, 4 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
16citing papers in PubMed, 4 pooled it
1.7field-weighted citation impact, top 16% 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

16 citing papers in PubMed, 4 syntheses or guidelines pooled it, 24 citations in OpenAlex.

  1. Recent research in myalgic encephalomyelitis/chronic fatigue syndrome: an evidence map.Health technology assessment (Winchester, England) · 2025
    Pooled it
  2. Pooled it
  3. Pooled it
  4. Pooled it
  5. Observational
  6. Article
  7. Article
  8. Review
  9. Article
  10. Article
  11. Article
  12. Review
  13. Article
  14. Review
  15. Article
  16. 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

5 authors at 3 institutions in 1 country.

A MelvinMRC Metabolic Diseases Unit, Wellcome Trust-MRC Institute of Metabolic Science, University of Cambridge, Addenbrookes Treatment Centre, Cambridge, CB2 0QQ, UK.ORCID 0000-0002-9582-8454
E LacerdaDepartment of Clinical Research, Faculty of Infectious and Tropical Diseases, London School of Hygiene & Tropical Medicine, London, WC1E 7HT, UK.
H M DockrellDepartment of Clinical Research, Faculty of Infectious and Tropical Diseases, London School of Hygiene & Tropical Medicine, London, WC1E 7HT, UK.
S O'RahillyMRC Metabolic Diseases Unit, Wellcome Trust-MRC Institute of Metabolic Science, University of Cambridge, Addenbrookes Treatment Centre, Cambridge, CB2 0QQ, UK.
L NaculDepartment of Clinical Research, Faculty of Infectious and Tropical Diseases, London School of Hygiene & Tropical Medicine, London, WC1E 7HT, UK. Luis.Nacul@lshtm.ac.uk.
London School of Hygiene & Tropical Medicine · GBUniversity of Cambridge · GBUniversity of London · GB

Funding

A longitudinal immunological and virological study for ME CFS biomarker discovery (Renewal)R01AI103629 · NIAID · LONDON SCH/HYGIENE & TROPICAL MEDICINE · PI DOCKRELL, HAZEL MARGUERITE, NACUL, LUIS · 2013 to 2020
$4.1M
Department of HealthMedical Research Council MC_UU_00014/1Medical Research Council MC_UU_00014/5Medical Research Council MC_UU_12012/1Medical Research Council MC_UU_12012/5NIAID NIH HHS R01 AI103629Wellcome Trust WT 214274/Z/18/Z
6 · The paper itself

Abstract

backgroundMyalgic encephalomyelitis/chronic fatigue syndrome (ME/CFS) is a debilitating condition characterised by fatigue and post-exertional malaise. Its pathogenesis is poorly understood. GDF15 is a circulating protein secreted by cells in response to a variety of stressors. The receptor for GDF15 is expressed in the brain, where its activation results in a range of responses. Among the conditions in which circulating GDF15 levels are highly elevated are mitochondrial disorders, where early skeletal muscle fatigue is a key symptom. We hypothesised that GDF15 may represent a marker of cellular stress in ME/CFS.

methodsGDF15 was measured in serum from patients with ME/CFS (n = 150; 100 with mild/moderate and 50 with severe symptoms), "healthy volunteers" (n = 150) and a cohort of patients with multiple sclerosis (n = 50).

resultsCirculating GDF15 remained stable in a subset of ME/CFS patients when sampled on two occasions ~ 7 months (IQR 6.7-8.8) apart, 720 pg/ml (95% CI 625-816) vs 670 pg/ml (95% CI 598-796), P = 0.5. GDF15 levels were 491 pg/ml in controls (95% CI 429-553), 546 pg/ml (95% CI 478-614) in MS patients, 560 pg/ml (95% CI 502-617) in mild/moderate ME/CFS patients and 602 pg/ml (95% CI 531-674) in severely affected ME/CFS patients. Accounting for potential confounders, severely affected ME/CFS patients had GDF15 concentrations that were significantly increased compared to healthy controls (P = 0.01). GDF15 levels were positively correlated (P = 0.026) with fatigue scores in ME/CFS.

conclusionsSevere ME/CFS is associated with increased levels of GDF15, a circulating biomarker of cellular stress that appears which stable over several months.

Indexed as

AdultCase-Control StudiesFatigue Syndrome, ChronicFemaleFollow-Up StudiesGrowth Differentiation Factor 15HumansLinear ModelsLongitudinal StudiesMaleMiddle AgedMultivariate AnalysisOutcome Assessment, Health CareSelf ReportTime FactorsGDF15 protein, humanGrowth Differentiation Factor 15Chronic fatigue syndromeGDF15Myalgic encephalomyelitis

Identifiers

PMID31801546
PMCPMC6892232
OpenAlexW2992296542

What OpenQuestion holds

Textmetadata
LicenceCC BY
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.