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- W4221046613 endingPage "449" @default.
- W4221046613 startingPage "449" @default.
- W4221046613 abstract "Since the outbreak of the SARS-CoV-2 pandemic, olfactory disorders have been reported as a frequent symptom of COVID-19; however, its pathogenesis is still debated. The aim of this review is to summarize the current understanding of the pathogenesis of smell impairment in the course of COVID-19 and to highlight potential avenues for future research on this issue. Several theories have been proposed to explain the pathogenesis of COVID-19-related anosmia, including nasal obstruction and rhinorrhea, oedema of the olfactory cleft mucosa, olfactory epithelial damage either within the olfactory receptor cells or the supporting non-neural cells (either direct or immune-mediated), damage to the olfactory bulb, and impairment of the central olfactory pathways. Although the pathogenesis of COVID-19-related anosmia is still not fully elucidated, it appears to be mainly due to sensorineural damage, with infection of the olfactory epithelium support cells via the ACE1 receptor and disruption of the OE caused by immense inflammatory reaction, and possibly with direct olfactory sensory neurons infection mediated by the NRP-1 receptor. Involvement of the higher olfactory pathways and a conductive component of olfactory disorders, as well as genetic factors, may also be considered." @default.
- W4221046613 created "2022-04-03" @default.
- W4221046613 creator A5068609350 @default.
- W4221046613 creator A5074017127 @default.
- W4221046613 date "2022-03-27" @default.
- W4221046613 modified "2023-09-26" @default.
- W4221046613 title "Pathogenesis of Olfactory Disorders in COVID-19" @default.
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