Evidence map›Paper›PMID 36043239›Full record

ArticleJournal of thrombosis and haemostasis : JTH2022

Removal of platelets from blood plasma to improve the quality of extracellular vesicle research.

Britta Bettin, Aleksandra Gasecka, Bo Li, Bert Dhondt, An Hendrix, Rienk Nieuwland, Edwin van der Pol

Abstract 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 37 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
37citing papers in PubMed, 1 pooled it
–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

37 citing papers in PubMed, 1 synthesis or guideline pooled it.

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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

7 authors.

Britta BettinLaboratory Experimental Clinical Chemistry, Amsterdam University Medical Centers, Location AMC, University of Amsterdam, Amsterdam, The Netherlands.ORCID 0000-0003-3353-2129
Aleksandra GaseckaLaboratory Experimental Clinical Chemistry, Amsterdam University Medical Centers, Location AMC, University of Amsterdam, Amsterdam, The Netherlands.ORCID 0000-0001-5083-7587
Bo LiLaboratory Experimental Clinical Chemistry, Amsterdam University Medical Centers, Location AMC, University of Amsterdam, Amsterdam, The Netherlands.ORCID 0000-0002-6129-321X
Bert DhondtDepartment of Urology, Ghent University Hospital, Ghent, Belgium.ORCID 0000-0001-7223-7670
An HendrixDepartment of Urology, Ghent University Hospital, Ghent, Belgium.ORCID 0000-0002-1883-8309
Rienk NieuwlandLaboratory Experimental Clinical Chemistry, Amsterdam University Medical Centers, Location AMC, University of Amsterdam, Amsterdam, The Netherlands.ORCID 0000-0002-5394-2152
Edwin van der PolLaboratory Experimental Clinical Chemistry, Amsterdam University Medical Centers, Location AMC, University of Amsterdam, Amsterdam, The Netherlands.ORCID 0000-0002-9497-8426

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundBlood plasma is commonly used for biomarker research of extracellular vesicles (EVs). Removing all cells prior to analysis of EVs is essential.

objectivesWe therefore studied the efficacy of the most commonly used centrifugation protocol to prepare cell-free plasma.

methodsPlasma was prepared according to the double centrifugation protocol of the International Society on Thrombosis and Haemostasis (ISTH) in three independent studies. The concentrations of platelets, platelet-derived EVs, and erythrocyte-derived EVs were measured by calibrated flow cytometry.

resultsThe mean platelet concentration ranged from 5.1 × 10

conclusionsTo improve the quality of EV research, we recommend (1) measuring and reporting the platelet concentration in plasma used for EV research, or (2) removing platelets by centrifugation followed by filtration.

Indexed as

Extracellular VesiclesThrombosisBiomarkersBlood PlateletsFlow CytometryHumansPlasmaBiomarkersbiorepositoriesblood plasmaextracellular vesiclesplateletsquality controlstandardization

Identifiers

PMID36043239
PMCPMC9825910

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.