Evidence map›Paper›PMID 32108990›Full record

ArticleJournal of thrombosis and haemostasis : JTH2020

A novel assay for studying the involvement of blood cells in whole blood thrombin generation.

Jun Wan, Joke Konings, Qiuting Yan, Hilde Kelchtermans, Romy Kremers, Bas de Laat, Mark Roest

Open access · bronzeAbstract read
In one paragraph

Article in Journal of thrombosis and haemostasis : JTH, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 18 papers.

0numbers the graph read from it
0cells of the map it votes in
18citing papers in PubMed
2.5field-weighted citation impact, top 9% 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

18 citing papers in PubMed, 29 citations in OpenAlex.

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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 at 1 institution in 1 country.

Jun WanSynapse Research Institute, Maastricht, The Netherlands.ORCID 0000-0002-0948-8191
Joke KoningsSynapse Research Institute, Maastricht, The Netherlands.
Qiuting YanSynapse Research Institute, Maastricht, The Netherlands.
Hilde KelchtermansSynapse Research Institute, Maastricht, The Netherlands.
Romy KremersSynapse Research Institute, Maastricht, The Netherlands.
Bas de LaatSynapse Research Institute, Maastricht, The Netherlands.
Mark RoestSynapse Research Institute, Maastricht, The Netherlands.
Maastricht University · NL

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundFluorogenic thrombin generation (TG) assays are commonly used to determine global coagulation phenotype in plasma. Whole blood (WB)-TG assays reach one step closer to physiology by involving the intrinsic blood cells, but erythrocytes cause variable quenching of the fluorescence signals, hampering its routine application.

objectiveTo develop a new assay for continuous WB-TG measurement.

methodsIn the new WB-TG assay, the erythrocyte-caused distortion of signal was solved by continuously mixing the sample during the measurement. The assay was validated by evaluating the reproducibility and comparing with the paper-based WB-TG assay. Reconstituted human blood and WB from 119 healthy donors was tested to explore the influences of hematocrit and platelet count on TG.

resultsThis novel WB-TG assay showed good reproducibility while being less affected by contact activation compared with the previous paper-based assay. Reconstitution experiments showed that the lag time of TG was shortened by the addition of platelets but not erythrocytes. Increasing hematocrit strongly augmented the peak thrombin, even in the presence of high platelet counts. The lag time and peak of WB-TG of 119 healthy donors were positively related to erythrocyte count after adjusting for age, sex, and oral contraceptive use with multiple linear regression analyses. The reference range and interindividual variation of WB-TG were determined in the healthy cohort.

conclusionsA novel WB-TG assay was developed, which is a straightforward tool to measure the involvement of platelets and erythrocytes in TG and may assist the research of blood cell-associated coagulation disorders.

Indexed as

Blood CoagulationThrombinBlood PlateletsHumansPlasmaReproducibility of ResultsThrombinblood cellsblood coagulation disorderserythrocytesplatelet activationthrombin

Identifiers

PMID32108990
PMCPMC7317846
OpenAlexW3008815872

What OpenQuestion holds

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LicenceCC BY-NC
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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.