Evidence map›Paper›PMID 41036702›Full record

ArticleJournal of medical virology2025

Circulating Microclots Are Structurally Associated With Neutrophil Extracellular Traps and Their Amounts Are Elevated in Long COVID Patients.

Alain R Thierry, Tom Usher, Cynthia Sanchez, Simone Turner, Chantelle Venter, Brice Pastor, Maxine Waters, Anel Thompson, Alexia Mirandola, Ekaterina Pisareva and 4 more

Abstract read
In one paragraph

Article in Journal of medical virology, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 15 papers.

0numbers the graph read from it
0cells of the map it votes in
15citing 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

15 citing papers in PubMed.

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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

14 authors.

Alain R ThierryIRCM, Montpellier Cancer Research Institute, INSERM U1194, Montpellier University, Montpellier, France.ORCID 0000-0002-4632-5404
Tom UsherDepartment of Physiological Sciences, Faculty of Science, Stellenbosch University, Stellenbosch Private Bag X1 Matieland, Stellenbosch, South Africa.
Cynthia SanchezIRCM, Montpellier Cancer Research Institute, INSERM U1194, Montpellier University, Montpellier, France.
Simone TurnerDepartment of Physiological Sciences, Faculty of Science, Stellenbosch University, Stellenbosch Private Bag X1 Matieland, Stellenbosch, South Africa.
Chantelle VenterDepartment of Physiological Sciences, Faculty of Science, Stellenbosch University, Stellenbosch Private Bag X1 Matieland, Stellenbosch, South Africa.
Brice PastorIRCM, Montpellier Cancer Research Institute, INSERM U1194, Montpellier University, Montpellier, France.
Maxine WatersDepartment of Physiological Sciences, Faculty of Science, Stellenbosch University, Stellenbosch Private Bag X1 Matieland, Stellenbosch, South Africa.
Anel ThompsonDepartment of Physiological Sciences, Faculty of Science, Stellenbosch University, Stellenbosch Private Bag X1 Matieland, Stellenbosch, South Africa.
Alexia MirandolaIRCM, Montpellier Cancer Research Institute, INSERM U1194, Montpellier University, Montpellier, France.
Ekaterina PisarevaIRCM, Montpellier Cancer Research Institute, INSERM U1194, Montpellier University, Montpellier, France.ORCID 0000-0002-0617-6889
Corinne PrevostelIRCM, Montpellier Cancer Research Institute, INSERM U1194, Montpellier University, Montpellier, France.
Gert J LaubscherMediclinic Stellenbosch, Stellenbosch, Stellenbosch, South Africa.
Douglas B KellDepartment of Physiological Sciences, Faculty of Science, Stellenbosch University, Stellenbosch Private Bag X1 Matieland, Stellenbosch, South Africa.
Etheresia PretoriusDepartment of Physiological Sciences, Faculty of Science, Stellenbosch University, Stellenbosch Private Bag X1 Matieland, Stellenbosch, South Africa.

Funding

The study was partially supported by SIRIC Montpellier Cancer Grant INCa_Inserm_DGOS_12553 (ART); South African National Research Foundation (142142); (EP); and the South African Medical Research Foundation (EP), the Novo Nordisk Foundation grant NNF20CC0035580 (DBK) and the Balvi Foundation grant 18 (DBK).
6 · The paper itself

Abstract

The persistence of vasculo-thrombotic complications has been put forward as a possible contributing factor in the Long COVID (LC) syndrome. Given the recently reported separate demonstration of the association of LC with elevated levels of heterogenous fibrin(ogen) amyloidogenic particles (microclots) and with those neutrophil extracellular traps (NETs), markers that are linked to thromboinflammation, this study considers the association of microclots with NETs. The results show that NETs markers (Myeloperoxydase, Neutrophil Elastase, and circulating DNA) are quantitatively and structurally associated with the size and number of microclots in patients with LC. These markers showed a strong diagnostic performance, both independently and when combined. Our study revealed that NETs may be a component of circulating microclots. We suggest that higher NETs formation might promote the stabilization of microclots in the circulation, potentially leading to deleterious effects which contribute causally to the LC syndrome.

Indexed as

COVID-19Extracellular TrapsNeutrophilsAdultAgedBiomarkersFemaleFibrinHumansLeukocyte ElastaseMaleMiddle AgedSARS-CoV-2BiomarkersFibrinLeukocyte Elastasecirculating DNAimmunothrombosisLong COVIDmicroclotsmyeloperoxidaseneutrophil elastaseneutrophil extracellular traps

Identifiers

PMID41036702
PMCPMC12489976

What OpenQuestion holds

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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.