Evidence map›Paper›PMID 35875995›Full record

ArticleJournal of thrombosis and haemostasis : JTH2022

Sustained VWF-ADAMTS-13 axis imbalance and endotheliopathy in long COVID syndrome is related to immune dysfunction.

Helen Fogarty, Soracha E Ward, Liam Townsend, Ellie Karampini, Stephanie Elliott, Niall Conlon, Jean Dunne, Rachel Kiersey, Aifric Naughton, Mary Gardiner and 14 more

Open access · hybridAbstract read
In one paragraph

Article in Journal of thrombosis and haemostasis : JTH, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 42 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
42citing papers in PubMed, 1 pooled it
8.8field-weighted citation impact, top 2% 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

42 citing papers in PubMed, 1 synthesis or guideline pooled it, 73 citations in OpenAlex.

  1. Endotheliopathy in Acute COVID-19 and Long COVID.International journal of molecular sciences · 2023
    Pooled it
  2. Trial
  3. Article
  4. Article
  5. Article
  6. Impact of nutrition on long COVID.Sports medicine and health science · 2026
    Review
  7. Observational
  8. Review
  9. Review
  10. Article
  11. Review
  12. Review
  13. Article
  14. COVID-19: a vascular nightmare unfolding.Frontiers in immunology · 2025
    Review
  15. Article
  16. The Highs and Lows of ADAMTS13 Activity.Journal of clinical medicine · 2024
    Review
  17. Review
  18. Article
  19. Article
  20. Review
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

24 authors at 5 institutions in 2 countries.

Helen FogartyIrish Centre for Vascular Biology, School of Pharmacy and Biomolecular Sciences, Royal College of Surgeons in Ireland, Dublin, Ireland.ORCID 0000-0001-8161-7931
Soracha E WardIrish Centre for Vascular Biology, School of Pharmacy and Biomolecular Sciences, Royal College of Surgeons in Ireland, Dublin, Ireland.ORCID 0000-0003-1730-8485
Liam TownsendDepartment of Infectious Diseases, St James's Hospital, Dublin, Ireland.ORCID 0000-0002-7089-0665
Ellie KarampiniIrish Centre for Vascular Biology, School of Pharmacy and Biomolecular Sciences, Royal College of Surgeons in Ireland, Dublin, Ireland.ORCID 0000-0003-4082-076X
Stephanie ElliottIrish Centre for Vascular Biology, School of Pharmacy and Biomolecular Sciences, Royal College of Surgeons in Ireland, Dublin, Ireland.ORCID 0000-0002-6297-4308
Niall ConlonDepartment of Clinical Medicine, School of Medicine, Trinity Translational Medicine Institute, Trinity College Dublin, Dublin, Ireland.ORCID 0000-0002-1102-0758
Jean DunneDepartment of Immunology, St James's Hospital, Dublin, Ireland.ORCID 0000-0001-5816-3855
Rachel KierseyDepartment of Immunology, St James's Hospital, Dublin, Ireland.ORCID 0000-0002-6434-0878
Aifric NaughtonDepartment of Immunology, St James's Hospital, Dublin, Ireland.ORCID 0000-0003-4557-1280
Mary GardinerDepartment of Immunology, St James's Hospital, Dublin, Ireland.ORCID 0000-0001-8541-148X
Mary ByrneNational Coagulation Centre, St James's Hospital, Dublin, Ireland.ORCID 0000-0002-0214-1718
Colm BerginDepartment of Infectious Diseases, St James's Hospital, Dublin, Ireland.ORCID 0000-0002-6651-1132
Jamie M O'SullivanIrish Centre for Vascular Biology, School of Pharmacy and Biomolecular Sciences, Royal College of Surgeons in Ireland, Dublin, Ireland.ORCID 0000-0002-1162-8739
Ignacio Martin-LoechesDepartment of Intensive Care Medicine, St James's Hospital, Dublin, Ireland.ORCID 0000-0002-5834-4063
Parthiban NadarajanDepartment of Respiratory Medicine, St James's Hospital, Dublin, Ireland.ORCID 0000-0002-1685-1876
Ciaran BannanDepartment of Infectious Diseases, St James's Hospital, Dublin, Ireland.ORCID 0000-0002-9288-8574
Patrick W MallonCentre for Experimental Pathogen Host Research, University College Dublin, Dublin, Ireland.ORCID 0000-0002-4337-6222
Gerard F CurleyDepartment of Anaesthesia and Critical Care, Royal College of Surgeons in Ireland, Dublin, Ireland.ORCID 0000-0003-0271-195X
Roger J S PrestonIrish Centre for Vascular Biology, School of Pharmacy and Biomolecular Sciences, Royal College of Surgeons in Ireland, Dublin, Ireland.ORCID 0000-0003-0108-4077
Aisling M RehillIrish Centre for Vascular Biology, School of Pharmacy and Biomolecular Sciences, Royal College of Surgeons in Ireland, Dublin, Ireland.ORCID 0000-0002-2987-126X
Ross I BakerWestern Australia Centre for Thrombosis and Haemostasis, Perth Blood Institute, Murdoch University, Perth, Western Australia, Australia.ORCID 0000-0002-2728-6788
Cliona Ni CheallaighDepartment of Infectious Diseases, St James's Hospital, Dublin, Ireland.ORCID 0000-0002-0842-425X
James S O'DonnellIrish Centre for Vascular Biology, School of Pharmacy and Biomolecular Sciences, Royal College of Surgeons in Ireland, Dublin, Ireland.ORCID 0000-0003-0309-3313
Irish COVID-19 Vasculopathy Study (iCVS) Investigators
Royal College of Surgeons in Ireland · IESt. James's Hospital · IETrinity College Dublin · IEMurdoch University · AUUniversity College Dublin · IE

Funding

Wellcome Trust
6 · The paper itself

Abstract

backgroundProlonged recovery is common after acute SARS-CoV-2 infection; however, the pathophysiological mechanisms underpinning Long COVID syndrome remain unknown. VWF/ADAMTS-13 imbalance, dysregulated angiogenesis, and immunothrombosis are hallmarks of acute COVID-19. We hypothesized that VWF/ADAMTS-13 imbalance persists in convalescence together with endothelial cell (EC) activation and angiogenic disturbance. Additionally, we postulate that ongoing immune cell dysfunction may be linked to sustained EC and coagulation activation. PATIENTS AND

methodsFifty patients were reviewed at a minimum of 6 weeks following acute COVID-19. ADAMTS-13, Weibel Palade Body (WPB) proteins, and angiogenesis-related proteins were assessed and clinical evaluation and immunophenotyping performed. Comparisons were made with healthy controls (n = 20) and acute COVID-19 patients (n = 36).

resultsADAMTS-13 levels were reduced (p = 0.009) and the VWF-ADAMTS-13 ratio was increased in convalescence (p = 0.0004). Levels of platelet factor 4 (PF4), a putative protector of VWF, were also elevated (p = 0.0001). A non-significant increase in WPB proteins Angiopoietin-2 (Ang-2) and Osteoprotegerin (OPG) was observed in convalescent patients and WPB markers correlated with EC parameters. Enhanced expression of 21 angiogenesis-related proteins was observed in convalescent COVID-19. Finally, immunophenotyping revealed significantly elevated intermediate monocytes and activated CD4+ and CD8+ T cells in convalescence, which correlated with thrombin generation and endotheliopathy markers, respectively.

conclusionOur data provide insights into sustained EC activation, dysregulated angiogenesis, and VWF/ADAMTS-13 axis imbalance in convalescent COVID-19. In keeping with the pivotal role of immunothrombosis in acute COVID-19, our findings support the hypothesis that abnormal T cell and monocyte populations may be important in the context of persistent EC activation and hemostatic dysfunction during convalescence.

Indexed as

COVID-19HemostaticsADAMTS13 ProteinAngiopoietin-2ConvalescenceHumansNeovascularization, PathologicOsteoprotegerinPlatelet Factor 4Post-Acute COVID-19 SyndromeSARS-CoV-2Thrombinvon Willebrand FactorADAMTS13 ProteinAngiopoietin-2HemostaticsOsteoprotegerinPlatelet Factor 4Thrombinvon Willebrand Factorconvalescent COVID-19endothelial cell activationimmune dysfunctionlong COVIDWeibel Palade body exocytosis

Identifiers

PMID35875995
PMCPMC9349977
OpenAlexW4287219387

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.