References

Mao L, Jin H, Wang M Neurologic manifestations of hospitalized patients with coronavirus disease 2019 in Wuhan, China. JAMA Neurol. 2020; 77:683-690
Lozada-Nur F, Chainani-Wu N, Fortuna G, Sroussi H. Dysgeusia in COVID-19: possible mechanisms and implications (published online ahead of print, 2020 Jun 27). Oral Surg Oral Med Oral Pathol Oral Radiol. 2020; S2212-4403(20)31075-0 https://doi.org/10.1016/j.oooo.2020.06.016
Samaranayake LP, Fakhruddin KS, Panduwawala C. Sudden onset, acute loss of taste and smell in coronavirus disease 2019 (COVID-19): a systematic review. Acta Odontol Scand. 2020; https://doi.org/10.1080/00016357.2020.1787505
Xu H, Zhong L, Deng J High expression of ACE2 receptor of 2019-nCoV on the epithelial cells of oral mucosa. Int J Oral Sci. 2020; 12

Chemosensory dysfunction in coronavirus disease 2019 (COVID-19)

From Volume 47, Issue 8, September 2020 | Pages 682-684

Authors

Lakshman Samaranayake

DSc, DDS, FRCPath, FHKCPath, FDS RCS(Edin), FRACDS, FDS RCPS

Professor Emeritus, and Immediate-past Dean, Faculty of Dentistry, University of Hong Kong

Articles by Lakshman Samaranayake

Email Lakshman Samaranayake

Kausar Sadia Fakhruddin

BDS, MSc, Lecturer

Lecturer, Departments of Preventive and Restorative Dentistry, College of Dental Medicine, University of Sharjah, UAE

Articles by Kausar Sadia Fakhruddin

Nihal Bandara

BDS, PhD, FHEA

Lecturer, Oral Microbiology, Bristol Dental School, University of Bristol, Bristol, UK

Articles by Nihal Bandara

Article

Smell and taste are in fact but a single composite sense, whose laboratory is the mouth and its chimney is the nose’ Jean Anthelms Brillat-Savarin (18th century French Writer) Coronavirus disease 19 (COVID-19) caused by the severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) has affected virtually all organ systems of the body, including the chemosensory system which dictates our ability to taste and smell. In the third part of this COVID-19 Commentary we address in some detail what is currently known of the sensori-neuronal deficits consequential to SARS-CoV-2 infection, in particular the loss of taste.

The agent of COVID-19, the severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2), characterized as a respiratory virus, has a predilection to invade the host by penetrating the various epithelial barriers of the body. It is known that the angiotensin-converting-enzyme 2 (ACE2), abundantly present in the epithelia, including the oral and nasal mucosa and several human organs, are the crucial, functional host cell receptor for SARS-CoV-2, and hence the primary access route of the virus.

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