Evidence map›Paper›PMID 28018972›Full record

ArticleJCI insight2016

Metabolic profiling indicates impaired pyruvate dehydrogenase function in myalgic encephalopathy/chronic fatigue syndrome.

Øystein Fluge, Olav Mella, Ove Bruland, Kristin Risa, Sissel E Dyrstad, Kine Alme, Ingrid G Rekeland, Dipak Sapkota, Gro V Røsland, Alexander Fosså and 16 more

Open access · goldAbstract read
In one paragraph

Article in JCI insight, 2016. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 132 papers, 3 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
132citing papers in PubMed, 3 pooled it
9.2field-weighted citation impact, top 1% 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

132 citing papers in PubMed, 3 syntheses or guidelines pooled it, 209 citations in OpenAlex.

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  19. Erythrocytes as Active Regulators of Blood Flow: A Brief Overview.Advances in experimental medicine and biology · 2026
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72 more citing papers are in PubMed but not listed here.

4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

26 authors at 4 institutions in 1 country.

Øystein FlugeDepartment of Oncology and Medical Physics, Haukeland University Hospital, Bergen, Norway.
Olav MellaDepartment of Oncology and Medical Physics, Haukeland University Hospital, Bergen, Norway.
Ove BrulandDepartment of Oncology and Medical Physics, Haukeland University Hospital, Bergen, Norway.
Kristin RisaDepartment of Oncology and Medical Physics, Haukeland University Hospital, Bergen, Norway.
Sissel E DyrstadDepartment of Biomedicine, University of Bergen, Bergen, Norway.
Kine AlmeDepartment of Oncology and Medical Physics, Haukeland University Hospital, Bergen, Norway.
Ingrid G RekelandDepartment of Oncology and Medical Physics, Haukeland University Hospital, Bergen, Norway.
Dipak SapkotaDepartment of Oncology and Medical Physics, Haukeland University Hospital, Bergen, Norway.
Gro V RøslandDepartment of Biomedicine, University of Bergen, Bergen, Norway.
Alexander FossåDepartment of Oncology, Norwegian Radium Hospital, Oslo University Hospital, Oslo, Norway.
Irini Ktoridou-ValenDepartment of Oncology and Medical Physics, Haukeland University Hospital, Bergen, Norway.
Sigrid LundeDepartment of Oncology and Medical Physics, Haukeland University Hospital, Bergen, Norway.
Kari SørlandDepartment of Oncology and Medical Physics, Haukeland University Hospital, Bergen, Norway.
Katarina LienCFS/ME Center, Division of Medicine, Oslo University Hospital, Oslo, Norway.
Ingrid HerderCFS/ME Center, Division of Medicine, Oslo University Hospital, Oslo, Norway.
Hanne ThürmerTelemark Hospital, Department of Medicine, Notodden, Norway.
Merete E GotaasDepartment of Pain and Complex Disorders, St. Olav's Hospital, Trondheim, Norway.
Katarzyna A BaranowskaDepartment of Pain and Complex Disorders, St. Olav's Hospital, Trondheim, Norway.
Louis Mlj BohnenDivision of Rehabilitation Services, University Hospital of Northern Norway, Tromsø, Norway.
Christoph SchäferDivision of Rehabilitation Services, University Hospital of Northern Norway, Tromsø, Norway.
Adrian McCannBevital AS, Bergen, Norway.
Kristian SommerfeltDepartment of Pediatrics and.
Lars HelgelandDepartment of Pathology, Haukeland University Hospital, Bergen, Norway.
Per M UelandDepartment of Clinical Science, University of Bergen, Bergen, Norway.
Olav DahlDepartment of Oncology and Medical Physics, Haukeland University Hospital, Bergen, Norway.
Karl J TronstadDepartment of Biomedicine, University of Bergen, Bergen, Norway.
Haukeland University Hospital · NOUniversity of Bergen · NOBevital (Norway) · NOOslo University Hospital · NO

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Myalgic encephalopathy/chronic fatigue syndrome (ME/CFS) is a debilitating disease of unknown etiology, with hallmark symptoms including postexertional malaise and poor recovery. Metabolic dysfunction is a plausible contributing factor. We hypothesized that changes in serum amino acids may disclose specific defects in energy metabolism in ME/CFS. Analysis in 200 ME/CFS patients and 102 healthy individuals showed a specific reduction of amino acids that fuel oxidative metabolism via the TCA cycle, mainly in female ME/CFS patients. Serum 3-methylhistidine, a marker of endogenous protein catabolism, was significantly increased in male patients. The amino acid pattern suggested functional impairment of pyruvate dehydrogenase (PDH), supported by increased mRNA expression of the inhibitory PDH kinases 1, 2, and 4; sirtuin 4; and PPARδ in peripheral blood mononuclear cells from both sexes. Myoblasts grown in presence of serum from patients with severe ME/CFS showed metabolic adaptations, including increased mitochondrial respiration and excessive lactate secretion. The amino acid changes could not be explained by symptom severity, disease duration, age, BMI, or physical activity level among patients. These findings are in agreement with the clinical disease presentation of ME/CFS, with inadequate ATP generation by oxidative phosphorylation and excessive lactate generation upon exertion.

Identifiers

PMID28018972
PMCPMC5161229
OpenAlexW2563536139

What OpenQuestion holds

Textmetadata
Read underepoch 390

Registered trials

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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.