Evidence map›Paper›PMID 27397996›Full record

ArticleJournal of stem cells & regenerative medicine2016

In vitro study of the role of thrombin in platelet rich plasma (PRP) preparation: utility for gel formation and impact in growth factors release.

Stephany Cares Huber, José Luiz Rosenberis Cunha Júnior, Silmara Montalvão, Letícia Queiroz da Silva, Aline Urban Paffaro, Francesca Aparecida Ramos da Silva, Bruno Lima Rodrigues, José Fabio Santos Duarte Lana, Joyce Maria Annichino-Bizzacchi

Open access · goldAbstract read
In one paragraph

Article in Journal of stem cells & regenerative medicine, 2016. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 17 papers.

0numbers the graph read from it
0cells of the map it votes in
17citing papers in PubMed
6.0field-weighted citation impact, top 4% 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

17 citing papers in PubMed, 39 citations in OpenAlex.

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  10. Orthobiologics in the treatment of hip disorders.World journal of stem cells · 2021
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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

9 authors at 1 institution in 1 country.

Stephany Cares HuberHemocentro, Haemostasis Laboratory, State University of Campinas UNICAMP, Brazil.
José Luiz Rosenberis Cunha JúniorHemocentro, Haemostasis Laboratory, State University of Campinas UNICAMP, Brazil.
Silmara MontalvãoHemocentro, Haemostasis Laboratory, State University of Campinas UNICAMP, Brazil.
Letícia Queiroz da SilvaHemocentro, Haemostasis Laboratory, State University of Campinas UNICAMP, Brazil.
Aline Urban PaffaroHemocentro, Haemostasis Laboratory, State University of Campinas UNICAMP, Brazil.
Francesca Aparecida Ramos da SilvaHemocentro, Haemostasis Laboratory, State University of Campinas UNICAMP, Brazil.
Bruno Lima RodriguesHemocentro, Haemostasis Laboratory, State University of Campinas UNICAMP, Brazil.
José Fabio Santos Duarte LanaHemocentro, Haemostasis Laboratory, State University of Campinas UNICAMP, Brazil.
Joyce Maria Annichino-BizzacchiHemocentro, Haemostasis Laboratory, State University of Campinas UNICAMP, Brazil.
Universidade Estadual de Campinas (UNICAMP) · BR

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

introductionThe use of PRP has been studied for different fields, with promising results in regenerative medicine. Until now, there is no study in the literature evaluating thrombin levels in serum, used as autologous thrombin preparation. Therefore, in the present study we evaluated the role played by different thrombin concentrations in PRP and the impact in the release of growth factors. Also, different activators for PRP gel formation were evaluated.

methodsThrombin levels were measured in different autologous preparations: serum, L-PRP (PRP rich in leukocytes) and T-PRP (thrombin produced through PRP added calcium gluconate). L-PRP was prepared according to the literature, with platelets and leukocytes being quantified. The effect of autologous thrombin associated or not with calcium in PRP gel was determined by measuring the time of gel formation. The relationship between thrombin concentration and release of growth factors was determined by growth factors (PDGF-AA, VEGF and EGF) multiplex analysis.

resultsA similar concentration of thrombin was observed in serum, L-PRP and T-PRP (8.13 nM, 8.63 nM and 7.56 nM, respectively) with a high variation between individuals (CV%: 35.07, 43 and 58.42, respectively). T-PRP and serum with calcium chloride showed similar results in time to promote gel formation. The increase of thrombin concentrations (2.66, 8 and 24 nM) did not promote an increase in growth factor release.

conclusionsThe technique of using serum as a thrombin source proved to be the most efficient and reproducible for promoting PRP gel formation, with some advantages when compared to other activation methods, as this technique is easier and quicker with no need of consuming part of PRP. Noteworthy, PRP activation using different thrombin concentrations did not promote a higher release of growth factors, appearing not to be necessary when PRP is used as a suspension.

Indexed as

gelGrowth factorLeukocytesPlatelet Rich PlasmaThrombin

Identifiers

PMID27397996
PMCPMC4929890
OpenAlexW2477601863

What OpenQuestion holds

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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.