Evidence map›Paper›PMID 36593057›Full record

ArticleIn vivo (Athens, Greece)

Monitoring T-Cell Kinetics in the Early Recovery Period of Lung Transplantation Cases by Copy Number Levels of T-Cell Receptor Excision Circle.

Fatma Tuba Akdeniz, Zeynep Akbulut, Mustafa Vayvada, Merih Kalamanoğlu Balci, Ali Yeginsu, Gulderen Yanikkaya Demirel, Cemal Asim Kutlu

Open access · diamondAbstract read
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Article in In vivo (Athens, Greece). The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.

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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

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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

0 citing papers in PubMed, 0 citations in OpenAlex.

No citing paper in PubMed yet.

4 · The record

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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 5 institutions in 1 country.

Fatma Tuba AkdenizDepartment of Medical Biology, Faculty of Medicine, Yeditepe University, Istanbul, Turkey; tuba.akdeniz@yeditepe.edu.tr.
Zeynep AkbulutDepartment of Medical Biology and Genetic, Faculty of Medicine, Maltepe University, Istanbul, Turkey.
Mustafa VayvadaThoracic Surgery Clinic, Kartal-Koşuyolu High Specialization Educational and Research Hospital, Istanbul, Turkey.
Merih Kalamanoğlu BalciDepartment of Chest Disease, Faculty of Medicine, Bahçeşehir University, Istanbul, Turkey.
Ali YeginsuThoracic Surgery Clinic, Liv Hospital Vadi, Istanbul, Turkey.
Gulderen Yanikkaya DemirelDepartment of Immunology, Faculty of Medicine, Yeditepe University, Istanbul, Turkey.
Cemal Asim KutluDepartment of Chest Disease, Faculty of Medicine, Bahçeşehir University, Istanbul, Turkey.
Bahçeşehir University · TRYeditepe University · TRKartal Koşuyolu High Specialization Training and Research Hospital · TRLiv Hospital · TRMaltepe University · TR

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

BACKGROUND/

aimLung transplantation is a life-saving procedure for patients with end-stage lung diseases. T-Cell receptor excision circle (TREC) is circular DNA produced during T-cell receptor gene rearrangement in the thymus and indicates naive T-cell migration from the thymus. Therefore, its levels represent thymic T-cell output. Post-transplant lymphocyte kinetics correlate with graft tolerance. The aim of this study was to investigate T-lymphocyte kinetics in the early recovery period after lung transplantation. For this purpose, copy numbers of TREC were determined in patients with a lung transplant. In addition, TREC copy numbers were evaluated according to age, diagnosis and the forced expiratory volume in 1 second (FEV1) of lung transplant patients. MATERIALS AND

methodsPeripheral blood samples were taken from patients aged 23 to 59 years who underwent lung transplantation at the Thoracic Surgery Clinic, Kartal-Koşuyolu High Specialization Educational and Research Hospital. This study included peripheral blood samples from 11 lung transplant patients (comprising four with chronic obstructive pulmonary disease, three with idiopathic pulmonary fibrosis, one with cystic fibrosis, one with silicosis and two with bronchiectasis; three females in total). Samples were taken at three different timepoints: Before transplant, and 24 hours and 7 days post transplant. TREC copy numbers were analyzed with real time reverse transcriptase-polymerase chain reaction.

resultsPost-transplant TREC numbers and density values were higher compared to pre-transplant values, although these differences were statistically insignificant. TREC copy numbers were found to be significantly higher in patients younger than 45 years compared to patients older than 45 years. At 24 hours after the transplant, the average TREC copy number/peripheral blood mononuclear cells of the cases with an FEV1 value of or below 50% was found to be statistically significantly higher than that of cases with an FEV1 value above 50% (p=0.046). There was no statistically significant difference in TREC copy numbers between male and female patients or by diagnostic group.

conclusionTREC copy numbers can be evaluated as a prognostic marker for lung transplantation. There is a need for multicenter studies with more patients.

Indexed as

Lung TransplantationT-LymphocytesDNA Copy Number VariationsFemaleGene Rearrangement, T-LymphocyteHumansLeukocytes, MononuclearMaleReceptors, Antigen, T-CellThymus GlandReceptors, Antigen, T-Cellimmunologylung transplantationT cell kineticsTREC

Identifiers

PMID36593057
PMCPMC9843769
OpenAlexW4313476184

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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.