Evidence map›Paper›PMID 32556282›Full record

ArticleBlood advances2020

Loss of GPVI and GPIbα contributes to trauma-induced platelet dysfunction in severely injured patients.

Paul Vulliamy, Samantha J Montague, Scarlett Gillespie, Melissa V Chan, Lucy A Coupland, Robert K Andrews, Timothy D Warner, Elizabeth E Gardiner, Karim Brohi, Paul C Armstrong

Open access · goldAbstract read
In one paragraph

Article in Blood advances, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 26 papers.

0numbers the graph read from it
0cells of the map it votes in
26citing papers in PubMed
3.6field-weighted citation impact, top 6% 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

26 citing papers in PubMed, 52 citations in OpenAlex.

  1. Trial
  2. Article
  3. Receptor-Dependent and -Independent Effects of Hemin on Platelet Plasma Membrane Disintegration.FASEB journal : official publication of the Federation of American Societies for Experimental Biology · 2026
    Article
  4. Article
  5. Beyond the count: platelet dysfunction profile in pediatric trauma patients.Research and practice in thrombosis and haemostasis · 2025
    Article
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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

10 authors at 3 institutions in 2 countries.

Paul VulliamyBlizard Institute, Barts and The London School of Medicine and Dentistry, Queen Mary University of London, London, United Kingdom.
Samantha J MontagueJohn Curtin School of Medical Research, Australian Cancer Research Foundation Department of Cancer Biology and Therapeutics, The Australian National University, Canberra, ACT, Australia; and.
Scarlett GillespieBlizard Institute, Barts and The London School of Medicine and Dentistry, Queen Mary University of London, London, United Kingdom.
Melissa V ChanBlizard Institute, Barts and The London School of Medicine and Dentistry, Queen Mary University of London, London, United Kingdom.
Lucy A CouplandJohn Curtin School of Medical Research, Australian Cancer Research Foundation Department of Cancer Biology and Therapeutics, The Australian National University, Canberra, ACT, Australia; and.
Robert K AndrewsAustralian Centre for Blood Diseases, Monash University, Melbourne, VIC, Australia.
Timothy D WarnerBlizard Institute, Barts and The London School of Medicine and Dentistry, Queen Mary University of London, London, United Kingdom.
Elizabeth E GardinerJohn Curtin School of Medical Research, Australian Cancer Research Foundation Department of Cancer Biology and Therapeutics, The Australian National University, Canberra, ACT, Australia; and.
Karim BrohiBlizard Institute, Barts and The London School of Medicine and Dentistry, Queen Mary University of London, London, United Kingdom.
Paul C ArmstrongBlizard Institute, Barts and The London School of Medicine and Dentistry, Queen Mary University of London, London, United Kingdom.
Queen Mary University of London · GBAustralian National University · AUAustralian Centre for HIV and Hepatitis Virology Research · AU

Funding

British Heart Foundation PG/15/47/31591British Heart Foundation PG/15/79/31777
6 · The paper itself

Abstract

Trauma-induced coagulopathy (TIC) is a complex, multifactorial failure of hemostasis that occurs in 25% of severely injured patients and results in a fourfold higher mortality. However, the role of platelets in this state remains poorly understood. We set out to identify molecular changes that may underpin platelet dysfunction after major injury and to determine how they relate to coagulopathy and outcome. We performed a range of hemostatic and platelet-specific studies in blood samples obtained from critically injured patients within 2 hours of injury and collected prospective data on patient characteristics and clinical outcomes. We observed that, although platelet counts were preserved above critical levels, circulating platelets sampled from trauma patients exhibited a profoundly reduced response to both collagen and the selective glycoprotein VI (GPVI) agonist collagen-related peptide, compared with those from healthy volunteers. These responses correlated closely with overall clot strength and mortality. Surface expression of the collagen receptors GPIbα and GPVI was reduced on circulating platelets in trauma patients, with increased levels of the shed ectodomain fragment of GPVI detectable in plasma. Levels of shed GPVI were highest in patients with more severe injuries and TIC. Collectively, these observations demonstrate that platelets experience a loss of GPVI and GPIbα after severe injury and translate into a reduction in the responsiveness of platelets during active hemorrhage. In turn, they are associated with reduced hemostatic competence and increased mortality. Targeting proteolytic shedding of platelet receptors is a potential therapeutic strategy for maintaining hemostatic competence in bleeding and improving the efficacy of platelet transfusions.

Indexed as

Blood PlateletsPlatelet TransfusionHemorrhageHemostasisHumansProspective Studies

Identifiers

PMID32556282
PMCPMC7322946
OpenAlexW3035905017

What OpenQuestion holds

Textmetadata
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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.