COVID-19 as a worldwide selective event and bitter taste receptor polymorphisms: An ecological correlational study.
COVID-19
Mortality
Polymorphism
TAS2R38 gene
Journal
International journal of biological macromolecules
ISSN: 1879-0003
Titre abrégé: Int J Biol Macromol
Pays: Netherlands
ID NLM: 7909578
Informations de publication
Date de publication:
30 Apr 2021
30 Apr 2021
Historique:
received:
29
10
2020
revised:
18
01
2021
accepted:
08
02
2021
pubmed:
15
2
2021
medline:
28
4
2021
entrez:
14
2
2021
Statut:
ppublish
Résumé
Given 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. Pooled 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. There 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. Due 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.
Sections du résumé
BACKGROUND
BACKGROUND
Given 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.
METHODS
METHODS
Pooled 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.
RESULTS
RESULTS
There 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.
CONCLUSION
CONCLUSIONS
Due 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.
Identifiants
pubmed: 33582215
pii: S0141-8130(21)00348-2
doi: 10.1016/j.ijbiomac.2021.02.070
pmc: PMC8043766
pii:
doi:
Substances chimiques
Receptors, G-Protein-Coupled
0
taste receptors, type 2
0
Types de publication
Journal Article
Meta-Analysis
Systematic Review
Langues
eng
Sous-ensembles de citation
IM
Pagination
204-210Informations de copyright
Copyright © 2021 Elsevier B.V. All rights reserved.
Déclaration de conflit d'intérêts
Declaration of competing interest None.
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