Frontiers in Microbiology (Oct 2021)

Can Salivary Innate Immune Molecules Provide Clue on Taste Dysfunction in COVID-19?

  • Aaron Ermel,
  • Aaron Ermel,
  • Thankam Paul Thyvalikakath,
  • Thankam Paul Thyvalikakath,
  • Thankam Paul Thyvalikakath,
  • Tatiana Foroud,
  • Tatiana Foroud,
  • Babar Khan,
  • Babar Khan,
  • Babar Khan,
  • Mythily Srinivasan

DOI
https://doi.org/10.3389/fmicb.2021.727430
Journal volume & issue
Vol. 12

Abstract

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Emerging concerns following the severe acute respiratory syndrome coronavirus-2 (SARS-CoV2) pandemic are the long-term effects of coronavirus disease (COVID)-19. Dysgeusia in COVID-19 is supported by the abundant expression of the entry receptor, angiotensin-converting enzyme-2 (ACE2), in the oral mucosa. The invading virus perturbs the commensal biofilm and regulates the host responses that permit or suppress viral infection. We correlated the microbial recognition receptors and soluble ACE2 (sACE2) with the SARS-CoV2 measures in the saliva of COVID-19 patients. Data indicate that the toll-like receptor-4, peptidoglycan recognition protein, and sACE2 are elevated in COVID-19 saliva and correlate moderately with the viral load.

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