Evidence map›Paper›PMID 32306967›Full record

ArticleJournal of translational medicine2020

Altered muscle membrane potential and redox status differentiates two subgroups of patients with chronic fatigue syndrome.

Yves Jammes, Nabil Adjriou, Nathalie Kipson, Christine Criado, Caroline Charpin, Stanislas Rebaudet, Chloé Stavris, Régis Guieu, Emmanuel Fenouillet, Frédérique Retornaz

Open access · goldAbstract read
In one paragraph

Article in Journal of translational medicine, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 14 papers, 3 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
14citing papers in PubMed, 3 pooled it
1.7field-weighted citation impact, top 17% 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

14 citing papers in PubMed, 3 syntheses or guidelines pooled it, 30 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. The Effect of Long ChainNutrients · 2023
    Pooled it
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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

10 authors at 5 institutions in 1 country.

Yves JammesUMR 1263 C2VN INRA INSERM, Faculty of Medicine, Aix Marseille University, Marseille, France.
Nabil AdjriouUMR 1263 C2VN INRA INSERM, Faculty of Medicine, Aix Marseille University, Marseille, France.
Nathalie KipsonUMR 1263 C2VN INRA INSERM, Faculty of Medicine, Aix Marseille University, Marseille, France.
Christine CriadoUMR 1263 C2VN INRA INSERM, Faculty of Medicine, Aix Marseille University, Marseille, France.
Caroline CharpinDepartment of Internal Medicine, European Hospital, Marseille, France.
Stanislas RebaudetDepartment of Internal Medicine, European Hospital, Marseille, France.
Chloé StavrisDepartment of Internal Medicine, European Hospital, Marseille, France.
Régis GuieuUMR 1263 C2VN INRA INSERM, Faculty of Medicine, Aix Marseille University, Marseille, France.
Emmanuel FenouilletUMR 1263 C2VN INRA INSERM, Faculty of Medicine, Aix Marseille University, Marseille, France.
Frédérique RetornazDepartment of Internal Medicine, European Hospital, Marseille, France. F.retornaz@hopital-europeen.fr.
Aix-Marseille Université · FRHôpital Européen · FRInserm · FRAssistance Publique Hôpitaux de Marseille · FRCentre National de la Recherche Scientifique · FR

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundIn myalgic encephalomyelitis/chronic fatigue syndrome (ME/CFS), altered membrane excitability often occurs in exercising muscles demonstrating muscle dysfunction regardless of any psychiatric disorder. Increased oxidative stress is also present in many ME/CFS patients and could affect the membrane excitability of resting muscles.

methodsSeventy-two patients were examined at rest, during an incremental cycling exercise and during a 10-min post-exercise recovery period. All patients had at least four criteria leading to a diagnosis of ME/CFS. To explore muscle membrane excitability, M-waves were recorded during exercise (rectus femoris (RF) muscle) and at rest (flexor digitorum longus (FDL) muscle). Two plasma markers of oxidative stress (thiobarbituric acid reactive substance (TBARS) and oxidation-reduction potential (ORP)) were measured. Plasma potassium (K

resultsThirty-nine patients had marked M-wave alterations in both the RF and FDL muscles during and after exercise while the resting values of plasma TBARS and ORP were increased and exercise-induced K

conclusionsResting muscles of ME/CFS patients have altered muscle membrane excitability. However, our data reveal heterogeneity in some major biomarkers in ME/CFS patients. Measurement of ORP may help to improve the diagnosis of ME/CFS. Trial registration Ethics Committee "Ouest II" of Angers (May 17, 2019) RCB ID: number 2019-A00611-56.

Indexed as

Fatigue Syndrome, ChronicExerciseHumansMembrane PotentialsOxidation-ReductionOxidative StressMuscle excitabilityMyalgic encephalomyelitis/chronic fatigue syndromeOxidative stressPotassium outflow

Identifiers

PMID32306967
PMCPMC7168976
OpenAlexW3017271864

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.