Evidence map›Paper›PMID 31827223›Full record

ArticleScientific reports2019

Elevated blood lactate in resting conditions correlate with post-exertional malaise severity in patients with Myalgic encephalomyelitis/Chronic fatigue syndrome.

Alaa Ghali, Carole Lacout, Maria Ghali, Aline Gury, Anne-Berengere Beucher, Pierre Lozac'h, Christian Lavigne, Geoffrey Urbanski

Abstract read
In one paragraph

Article in Scientific reports, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 22 papers.

0numbers the graph read from it
0cells of the map it votes in
22citing 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

22 citing papers in PubMed.

  1. Article
  2. Review
  3. Erythrocytes as Active Regulators of Blood Flow: A Brief Overview.Advances in experimental medicine and biology · 2026
    Review
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  5. Review
  6. Article
  7. Article
  8. Review
  9. Article
  10. Review
  11. Lactate Metabolism in Health and Disease.Advances in experimental medicine and biology · 2025
    Review
  12. Article
  13. Article
  14. Article
  15. Article
  16. Article
  17. Review
  18. Article
  19. Article
  20. 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

8 authors.

Alaa GhaliDepartment of internal medicine, University Hospital, Angers, 49000, France. alghali@chu-angers.fr.ORCID http://orcid.org/0000-0003-2040-3387
Carole LacoutDepartment of internal medicine, University Hospital, Angers, 49000, France.
Maria GhaliDepartment of general medicine, Faculty of medicine, Angers, 49000, France.
Aline GuryDepartment of internal medicine, University Hospital, Angers, 49000, France.
Anne-Berengere BeucherDepartment of internal medicine, University Hospital, Angers, 49000, France.
Pierre Lozac'hDepartment of internal medicine, University Hospital, Angers, 49000, France.
Christian LavigneDepartment of internal medicine, University Hospital, Angers, 49000, France.ORCID http://orcid.org/0000-0002-2538-0076
Geoffrey UrbanskiDepartment of internal medicine, University Hospital, Angers, 49000, France.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Elevated blood lactate after moderate exercise was reported in some of patients with myalgic encephalomyelitis/chronic fatigue syndrome (ME/CFS). We hypothesised that blood lactate could be also elevated in resting conditions. We aimed investigating the frequency of elevated lactate at rest in ME/CFS patients, and comparing characteristics of ME/CFS patients with and without elevated lactate. Patients fulfilling international consensus criteria for ME/CFS who attended the internal medicine department of University hospital Angers-France between October 2011 and December 2017 were included retrospectively. All patients were systematically hospitalised for an aetiological workup and overall assessment. We reviewed their medical records for data related to the assessment: clinical characteristics, comorbidities, fatigue features, post-exertional malaise (PEM) severity, and results of 8 lactate measurements at rest. Patients having ≥1 lactate measurement ≥2 mmol/L defined elevated lactate group. The study included 123 patients. Elevated (n = 55; 44.7%) and normal (n = 68; 55.3%) lactate groups were comparable except for PEM, which was more severe in the elevated lactate group after adjusting for age at disease onset, sex, and comorbidities (OR 2.47, 95% CI: 1.10-5.55). ME/CFS patients with elevated blood lactate at rest may be at higher risk for more severe PEM. This finding may be of interest in ME/CFS management.

Indexed as

Severity of Illness IndexAdolescentAdultFatigue Syndrome, ChronicFemaleHumansLactatesMaleMiddle AgedRetrospective StudiesYoung AdultLactates

Identifiers

PMID31827223
PMCPMC6906377

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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.