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Event: 1871
Key Event Title
olfactory sensory neurons, decrease
Short name
Biological Context
Level of Biological Organization |
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Cellular |
Cell term
Cell term |
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ciliated olfactory receptor neuron |
Organ term
Organ term |
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nose epithelium |
Key Event Components
Key Event Overview
AOPs Including This Key Event
AOP Name | Role of event in AOP | Point of Contact | Author Status | OECD Status |
---|---|---|---|---|
SARS-CoV-2 causes anosmia | KeyEvent | Arthur Author (send email) | Under development: Not open for comment. Do not cite | Under Development |
Taxonomic Applicability
Life Stages
Sex Applicability
Key Event Description
Biological state: The olfactory sensory neurons (OSNs) together with a number nonneuronal cells form the olfactory epithelium (OE). They are bipolar neuronal cells. The dendritic end of the OSNs is exposed to the nasal mucus, whereas their axonal pole is synaptically connected to the olfactory bulb of the central nervous system (CNS) (Liang, 2020). OSNs in the OE could be differentiated into hundreds of subsets, depending on the phenotype of odorant receptor proteins.
Biological compartment: The OSNs are located in the olfactory epithelium (OE).
General role in the biology: The OSNs are the OE’s parenchymal cells responsible for olfactory reception and transduction. The OSNs project their axons via the olfactory nerve onto the olfactory bulb. The OSNs are undoubtedly the OE’s parenchymal cells responsible for olfactory reception and transduction.
How It Is Measured or Detected
Domain of Applicability
References
Liang F. Sustentacular Cell Enwrapment of Olfactory Receptor Neuronal Dendrites: An Update. Genes (Basel). 2020 Apr 30;11(5):493. doi: 10.3390/genes11050493. PMID: 32365880; PMCID: PMC7291085.