Evidence map›Paper›PMID 37033961›Full record

ArticleFrontiers in immunology2023

Immune and ionic mechanisms mediating the effect of dexamethasone in severe COVID-19.

Ameet A Chimote, Abdulaziz O Alshwimi, Martina Chirra, Vaibhavkumar S Gawali, Margaret V Powers-Fletcher, Kristin M Hudock, Laura Conforti

Open access · goldAbstract read
In one paragraph

Article in Frontiers in immunology, 2023. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 11 papers.

0numbers the graph read from it
0cells of the map it votes in
11citing papers in PubMed
3.7field-weighted citation impact, top 6% 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

11 citing papers in PubMed, 19 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 2 institutions in 1 country.

Ameet A ChimoteDepartment of Internal Medicine, Division of Nephrology, University of Cincinnati, Cincinnati, OH, United States.
Abdulaziz O AlshwimiDepartment of Internal Medicine, Division of Nephrology, University of Cincinnati, Cincinnati, OH, United States.
Martina ChirraDepartment of Internal Medicine, Division of Nephrology, University of Cincinnati, Cincinnati, OH, United States.
Vaibhavkumar S GawaliDepartment of Internal Medicine, Division of Nephrology, University of Cincinnati, Cincinnati, OH, United States.
Margaret V Powers-FletcherDepartment of Internal Medicine, Division of Infectious Diseases, University of Cincinnati, Cincinnati, OH, United States.
Kristin M HudockDepartment of Internal Medicine, Division of Pulmonary, Critical Care and Sleep Medicine, University of Cincinnati, Cincinnati, OH, United States.
Laura ConfortiDepartment of Internal Medicine, Division of Nephrology, University of Cincinnati, Cincinnati, OH, United States.
University of Cincinnati · USCincinnati Children's Hospital Medical Center · US

Funding

LCenter for Clinical and Translational Science and TrainingUL1TR001425 · NCATS · UNIVERSITY OF CINCINNATI · PI HEUBI, JAMES E., KISSELA, BRETT M · 2015 to 2024
$37.5M
Tissue Repository CoreP30AR070549 · NIAMS · CINCINNATI CHILDRENS HOSP MED CTR · PI Leah Claire Kottyan · 2016 to 2026
$7.7M
Hypoxia and Potassium Channel Activity in T LymphocytesR01CA095286 · NCI · UNIVERSITY OF CINCINNATI · PI CONFORTI, LAURA · 2003 to 2019
$4.1M
Stimulating Access to Research in the University of Cincinnati Internal Medicine Residency ProgramR38HL155775 · NHLBI · UNIVERSITY OF CINCINNATI · PI Jack Rubinstein · 2021 to 2026
$1.6M
NCATS NIH HHS UL1 TR001425NCI NIH HHS R01 CA095286NHLBI NIH HHS R38 HL155775NIAMS NIH HHS P30 AR070549
6 · The paper itself

Abstract

Introduction: Severe COVID-19 is characterized by cytokine storm, an excessive production of proinflammatory cytokines that contributes to acute lung damage and death. Dexamethasone is routinely used to treat severe COVID-19 and has been shown to reduce patient mortality. However, the mechanisms underlying the beneficial effects of dexamethasone are poorly understood. Methods: We conducted transcriptomic analysis of peripheral blood mononuclear cells (PBMCs) from COVID-19 patients with mild disease, and patients with severe COVID-19 with and without dexamethasone treatment. We then treated healthy donor PBMCs in vitro with dexamethasone and investigated the effects of dexamethasone treatment ion channel abundance (by RT-qPCR and flow cytometry) and function (by electrophysiology, Ca2+ influx measurements and cytokine release) in T cells. Results: We observed that dexamethasone treatment in severe COVID-19 inhibited pro-inflammatory and immune exhaustion pathways, circulating cytotoxic and Th1 cells, interferon (IFN) signaling, genes involved in cytokine storm, and Ca Conclusion: Our findings suggest that dexamethasone attenuates inflammatory cytokine release via Kv1.3 suppression, and this mechanism contributes to dexamethasone-mediated immunosuppression in severe COVID-19.

Indexed as

COVID-19CalciumCOVID-19 Drug TreatmentCytokine Release SyndromeCytokinesDexamethasoneHumansLeukocytes, MononuclearCalciumCytokinesDexamethasoneCOVID-19cytokine stormdexamethasoneinterferon signalingion channelssevere COVID-19severe COVID-19 immune signaling

Identifiers

PMID37033961
PMCPMC10080085
OpenAlexW4360866296

What OpenQuestion holds

Textmetadata
LicenceCC BY
Read underepoch 390

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.