Evidence map›Paper›PMID 34626490›Full record

ArticleJournal of clinical laboratory analysis2021

Association of lymphocyte subsets with mortality in severe COVID-19 pneumonia patients.

Farzaneh Ashrafi, Pardis Nematollahi, Mehrzad Salmasi, Arash Hedayat, Babak Amra

Open access · goldAbstract read
In one paragraph

Article in Journal of clinical laboratory analysis, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 15 papers.

0numbers the graph read from it
0cells of the map it votes in
15citing papers in PubMed
0.8field-weighted citation impact, top 25% 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

15 citing papers in PubMed, 17 citations in OpenAlex.

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  8. Cellular and immune response in fatal COVID-19 pneumonia.The Pan African medical journal · 2024
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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

5 authors at 1 institution in 1 country.

Farzaneh AshrafiHematology Oncology Division, Internal Medicine Department, Isfahan University of Medical Sciences, Isfahan, Iran.
Pardis NematollahiDepartment of Pathology, School of Medicine, Isfahan University of Medical Sciences, Isfahan, Iran.
Mehrzad SalmasiInternal Medicine Department, Isfahan University of Medical Sciences, Isfahan, Iran.
Arash HedayatInternal Medicine Department, Isfahan University of Medical Sciences, Isfahan, Iran.ORCID https://orcid.org/0000-0001-8991-149X
Babak AmraBamdad Respiratory and Sleep Research Center, Department of Internal Medicine, Pulmonary and Sleep Ward, Isfahan University of Medical Sciences, Isfahan, Iran.
Isfahan University of Medical Sciences · IR

Funding

Isfahan University of Medical Sciences 199110
6 · The paper itself

Abstract

backgroundFew studies have investigated the alterations in the T and B cell counts and related subgroups in pulmonary infections especially COVID-19. Here, we aimed to evaluate total T and B lymphocytes and T cell subgroup counts to find the possible correlation between number of these cells and severity and mortality in COVID-19 patients.

methodsThis study was performed on 40 patients with severe COVID-19 infection confirmed by reverse transcription-polymerase chain reaction (RT-PCR) and chest HRCT in August 2020. By the time of admission, T lymphocytes profile in peripheral blood was investigated using multicolor flow cytometry. The total number of T lymphocytes, CD4+ T cells, CD8+ T cells, and B lymphocytes were calculated. Expression of CD2, CD3, CD5, and CD7 as pan T cell surface markers and expression of CD38 and HLA-DR as activated markers on T lymphocytes were also evaluated.

resultsNine patients (22.5%) died during the study and 16 patients (40%) were admitted to ICU. Deceased patients demonstrated lower amounts of T cell count and CD4+ T cell count (with a marginal difference (p = 0.07)) compared with survived patients at the time of admission. The chance of mortality was significantly higher for patients with CD7 loss (OR = 14.89). A marginally significant relationship was also indicated between CD4<200/ml and mortality (OR = 8.65), but no other significant relationships were observed between variables and ICU admission.

conclusionAltogether, CD7 loss on T lymphocytes and CD4+ T cell count below 200/ml revealed a significant relationship with mortality. Considering T lymphocytes and T cell subgroup count could have a predictive value for patients suffering from COVID-19.

Indexed as

Lymphocyte SubsetsSARS-CoV-2ADP-ribosyl Cyclase 1Antigens, CD7COVID-19FemaleHumansMaleMiddle AgedSeverity of Illness IndexADP-ribosyl Cyclase 1Antigens, CD7COVID-19flow cytometryT Lymphocytes

Identifiers

PMID34626490
PMCPMC8605151
OpenAlexW3205303286

What OpenQuestion holds

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LicenceCC BY
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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.