Evidence map›Paper›PMID 35868344›Full record

ArticleExpert review of clinical immunology2022

Gut-brain communication in COVID-19: molecular mechanisms, mediators, biomarkers, and therapeutics.

Tameena Wais, Mehde Hasan, Vikrant Rai, Devendra K Agrawal

Open access · greenAbstract read
In one paragraph

Article in Expert review of clinical immunology, 2022. 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
2.4field-weighted citation impact, top 10% 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, 20 citations in OpenAlex.

  1. Article
  2. Review
  3. Enteric nervous system as a therapeutic target in gastrointestinal disorders.World journal of gastrointestinal pharmacology and therapeutics · 2025
    Article
  4. Review
  5. Article
  6. Article
  7. CAR T-Cell Therapy in Cancer: Balancing Efficacy with Cardiac Toxicity Concerns.Journal of cancer science and clinical therapeutics · 2025
    Article
  8. Article
  9. Article
  10. Article
  11. Article
  12. Mechanisms of long COVID: An updated review.Chinese medical journal pulmonary and critical care medicine · 2023
    Review
  13. Review
  14. Review
  15. Pitfalls and Traps in the Surgical Evaluation of Patients with Irritable Bowel Syndrome (IBS).Journal of gastrointestinal surgery : official journal of the Society for Surgery of the Alimentary Tract · 2023
    Article
  16. Article
  17. Thromboembolism in the Complications of Long COVID-19.Cardiology and cardiovascular medicine · 2023
    Article
  18. Article
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

4 authors at 1 institution in 1 country.

Tameena WaisDepartment of Translational Research, College of Osteopathic Medicine of the Pacific. Western University of Health Sciences, Pomona, CA, USA.
Mehde HasanDepartment of Translational Research, College of Osteopathic Medicine of the Pacific. Western University of Health Sciences, Pomona, CA, USA.
Vikrant RaiDepartment of Translational Research, College of Osteopathic Medicine of the Pacific. Western University of Health Sciences, Pomona, CA, USA.ORCID 0000-0001-6286-2341
Devendra K AgrawalDepartment of Translational Research, College of Osteopathic Medicine of the Pacific. Western University of Health Sciences, Pomona, CA, USA.ORCID 0000-0001-5445-0013
Western University of Health Sciences · US

Funding

Novel Approach to Stabilize Atherosclerotic Plaque in Carotid ArteryR01HL144125 · NHLBI · WESTERN UNIVERSITY OF HEALTH SCIENCES · PI AGRAWAL, DEVENDRA K. · 2018 to 2021
$2.8M
Novel Molecular Target to Prevent Maturation Failure of Arteriovenous FistulaR01HL147662 · NHLBI · WESTERN UNIVERSITY OF HEALTH SCIENCES · PI AGRAWAL, DEVENDRA K. · 2019 to 2022
$2.8M
NHLBI NIH HHS R01 HL144125NHLBI NIH HHS R01 HL147662
6 · The paper itself

Abstract

introductionInfection with COVID-19 results in acute respiratory symptoms followed by long COVID multi-organ effects presenting with neurological, cardiovascular, musculoskeletal, and gastrointestinal (GI) manifestations. Temporal relationship between gastrointestinal and neurological symptoms is unclear but warranted for exploring better clinical care for COVID-19 patients. AREAS COVERED: We critically reviewed the temporal relationship between gut-brain axis after SARS-CoV-2 infection and the molecular mechanisms involved in neuroinvasion following GI infection. Mediators are identified that could serve as biomarkers and therapeutic targets in SARS-CoV-2. We discussed the potential therapeutic approaches to mitigate the effects of GI infection with SARS-CoV-2. EXPERT OPINION: Altered gut microbiota cause increased expression of various mediators, including zonulin causing disruption of tight junction. This stimulates enteric nervous system and signals to CNS precipitating neurological sequalae. Published reports suggest potential role of cytokines, immune cells, B(0)AT1 (SLC6A19), ACE2, TMRSS2, TMPRSS4, IFN-γ, IL-17A, zonulin, and altered gut microbiome in gut-brain axis and associated neurological sequalae. Targeting these mediators and gut microbiome to improve immunity will be of therapeutic significance. In-depth research and well-designed large-scale population-based clinical trials with multidisciplinary and collaborative approaches are warranted. Investigating the temporal relationship between organs involved in long-term sequalae is critical due to evolving variants of SARS-CoV-2.

Indexed as

Brain-Gut AxisCOVID-19Gastrointestinal DiseasesBiomarkersBrainHumansPost-Acute COVID-19 SyndromeSARS-CoV-2BiomarkersACE-2 receptorCOVID-19enteric nervous systemgastrointestinal tractGut-brain axis

Identifiers

PMID35868344
PMCPMC9388545
OpenAlexW4286615336

What OpenQuestion holds

Textmetadata
LicenceTDM
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.