Evidence map›Paper›PMID 33582215›Full record

SynthesisInternational journal of biological macromolecules2021

COVID-19 as a worldwide selective event and bitter taste receptor polymorphisms: An ecological correlational study.

Shima Parsa, Vahid Mogharab, Mohsen Ebrahimi, Sayyed Reza Ahmadi, Behzad Shahi, Neema John Mehramiz, Mahdi Foroughian, Mohammad Zarenezhad, Navid Kalani, Mohammad Hashem Abdi and 3 more

Open access · greenAbstract readMeta-AnalysisSystematic Review
In one paragraph

Synthesis in International journal of biological macromolecules, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 11 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
11citing papers in PubMed, 1 pooled it
2.5field-weighted citation impact, top 12% 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, 1 synthesis or guideline pooled it, 24 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

13 authors at 6 institutions in 2 countries.

Shima ParsaStudent Research Committee, Jahrom University of Medical Sciences, Jahrom, Iran.
Vahid MogharabDepartment of Pediatrics, Jahrom University of Medical Science, Jahrom, Iran.
Mohsen EbrahimiDepartment of Emergency Medicine, Faculty of Medicine, Mashhad University of Medical Sciences, Mashhad, Iran.
Sayyed Reza AhmadiDepartment of Emergency Medicine, Faculty of Medicine, Mashhad University of Medical Sciences, Mashhad, Iran.
Behzad ShahiDepartment of Emergency Medicine, Faculty of Medicine, Zahedan University of Medical Sciences, Zahedan, Iran.
Neema John MehramizDepartment of Psychiatry & Neurology, Banner University Medical Center, Tucson, AZ, USA.
Mahdi ForoughianDepartment of Emergency Medicine, Faculty of Medicine, Mashhad University of Medical Sciences, Mashhad, Iran.
Mohammad ZarenezhadIranian Legal Medicine Research Center, Legal Medicine Organization, Tehran, Iran.
Navid KalaniResearch Center for Social Determinants of Health, Jahrom University of Medical Sciences, Jahrom, Iran.
Mohammad Hashem AbdiMedical Surgical Nursing, Jahrom University of Medical Sciences, Jahrom, Iran.
Farshid JavdaniStudent Research Committee, Jahrom University of Medical Sciences, Jahrom, Iran.
Pouyan KeshavarzStudent Research Committee, Jahrom University of Medical Sciences, Jahrom, Iran.
Naser HatamiStudent Research Committee, Jahrom University of Medical Sciences, Jahrom, Iran. Electronic address: avazhatami@gmail.com.
Jahrom University of Medical Sciences · IRJahrom University · IRMashhad University of Medical Sciences · IRBanner - University Medical Center Tucson · USIranian Legal Medicine Organization · IRZahedan University of Medical Sciences · IR

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundGiven the observed olfactory and gustatory dysfunctions in patients with COVID-19 and recent findings on taste receptors possible important activities in the immune system, we elected to estimate the correlation between COVID-19 mortality and polymorphism of a particular type of bitter taste receptor gene called TAS2R38, in a worldwide epidemiological point of view.

methodsPooled rate of each of the rs713598, rs1726866, rs10246939, and PAV/AVI polymorphisms of the TAS2R38 gene was obtained in different countries using a systematic review methodology and its relationship with the mortality of COVID-19. Data were analyzed by the comprehensive meta-analysis software and SPSS.

resultsThere was only a significant reverse Pearson correlation in death counts and PAV/AVI ratio, p = 0.047, r = -0.503. Also, a significant reverse correlation of PAV/AVI ratio and death rate was seen, r = -0.572 p = 0.021. rs10246939 ratio had a significant positive correlation with death rate, r = 0.851 p = 0.031. Further analysis was not significant. Our results showed that the higher presence of PAV allele than AVI, and a higher rate of G allele than A in rs10246939 polymorphism in a country, could be associated with lower COVID-19 mortality. While assessing all three polymorphisms showed a huge diversity worldwide.

conclusionDue to extraoral activities of bitter taste receptor genes, especially in mucosal immunity, this gene seems to be a good candidate for future studies on COVID-19 pathophysiology. Also, the high worldwide diversity of TAS2R38 genes polymorphism and its possible assassination with mortality raises concerns about the efficiency of vaccine projects in different ethnicities.

Indexed as

Polymorphism, Single NucleotideAllelesCorrelation of DataCOVID-19Databases, FactualGenetic Association StudiesGenetic Predisposition to DiseaseGenotypeHumansReceptors, G-Protein-CoupledTasteTaste Receptors, Type 2Receptors, G-Protein-CoupledTaste Receptors, Type 2COVID-19MortalityPolymorphismTAS2R38 gene

Identifiers

PMID33582215
PMCPMC8043766
OpenAlexW3127137376

What OpenQuestion holds

Textmetadata
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.