Evidence map›Paper›PMID 34011981›Full record

ArticleScientific reports2021

Altered endothelial dysfunction-related miRs in plasma from ME/CFS patients.

J Blauensteiner, R Bertinat, L E León, M Riederer, N Sepúlveda, F Westermeier

Erratum issued Registry-linked trialOpen access · goldAbstract read
In one paragraph

Article in Scientific reports, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. An erratum has been issued. It is linked to trial NCT06463106 (Endothelial Dysfunction in Post-infection Fatigue Syndromes), which is not on this map. Cited by 27 papers, 2 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
27citing papers in PubMed, 2 pooled it
4.6field-weighted citation impact, top 4% 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.

NCT06463106 completednot on this map

Endothelial Dysfunction in Post-infection Fatigue Syndromes

TypeobservationalSponsorFH Joanneum Gesellschaft mbHRan2021 to 2022Enrolled107ConditionsChronic Fatigue Syndrome, Long COVID
3 · Its place in the literature

Who cites it

27 citing papers in PubMed, 2 syntheses or guidelines pooled it, 34 citations in OpenAlex.

  1. Recent research in myalgic encephalomyelitis/chronic fatigue syndrome: an evidence map.Health technology assessment (Winchester, England) · 2025
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  13. Sex and disease severity-based analysis of steroid hormones in ME/CFS.Journal of endocrinological investigation · 2024
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4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

6 authors at 5 institutions in 4 countries.

J BlauensteinerInstitute of Biomedical Science, Department of Health Studies, FH Joanneum University of Applied Sciences, Graz, Austria.
R BertinatCentro de Microscopía Avanzada, CMA-BIO BIO, Facultad de Ciencias Biológica, Universidad de Concepción, Concepción, Chile.
L E LeónInstituto de Ciencias Biomédicas, Facultad de Ciencias de La Salud, Universidad Autónoma de Chile, Santiago, Chile.
M RiedererInstitute of Biomedical Science, Department of Health Studies, FH Joanneum University of Applied Sciences, Graz, Austria.
N SepúlvedaDepartment of Infection Biology, Faculty of Infectious and Tropical Diseases, London School of Hygiene and Tropical Medicine, London, UK.
F WestermeierInstitute of Biomedical Science, Department of Health Studies, FH Joanneum University of Applied Sciences, Graz, Austria. francisco.westermeier@fh-joanneum.at.
FH JOANNEUM University of Applied Sciences · ATUniversidad Autónoma de Chile · CLUniversidad Bernardo O'Higgins · CLUniversity of Concepción · CLUniversity of Lisbon · PT

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
NIAID NIH HHS R01 AI103629
6 · The paper itself

Abstract

Myalgic encephalomyelitis/chronic fatigue syndrome (ME/CFS) is a complex disease characterized by unexplained debilitating fatigue. Although the etiology is unknown, evidence supports immunological abnormalities, such as persistent inflammation and immune-cell activation, in a subset of patients. Since the interplay between inflammation and vascular alterations is well-established in other diseases, endothelial dysfunction has emerged as another player in ME/CFS pathogenesis. Endothelial nitric oxide synthase (eNOS) generates nitric oxide (NO) that maintains endothelial homeostasis. eNOS is activated by silent information regulator 1 (Sirt1), an anti-inflammatory protein. Despite its relevance, no study has addressed the Sirt1/eNOS axis in ME/CFS. The interest in circulating microRNAs (miRs) as potential biomarkers in ME/CFS has increased in recent years. Accordingly, we analyze a set of miRs reported to modulate the Sirt1/eNOS axis using plasma from ME/CFS patients. Our results show that miR-21, miR-34a, miR-92a, miR-126, and miR-200c are jointly increased in ME/CFS patients compared to healthy controls. A similar finding was obtained when analyzing public miR data on peripheral blood mononuclear cells. Bioinformatics analysis shows that endothelial function-related signaling pathways are associated with these miRs, including oxidative stress and oxygen regulation. Interestingly, histone deacetylase 1, a protein responsible for epigenetic regulations, represented the most relevant node within the network. In conclusion, our study provides a basis to find endothelial dysfunction-related biomarkers and explore novel targets in ME/CFS.

Indexed as

AdultDiscriminant AnalysisEndothelium, VascularFatigue Syndrome, ChronicFemaleGene Expression RegulationGene Regulatory NetworksHumansLeukocytes, MononuclearMaleMicroRNAsMiddle AgedPrincipal Component AnalysisMicroRNAs

Identifiers

PMID34011981
PMCPMC8134566
OpenAlexW3163148213

What OpenQuestion holds

Textmetadata
LicenceCC BY
Read underepoch 390

Registered trials

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.