ArticleScientific reports2020
Zone-specific damage of the olfactory epithelium under protein restriction.
Article in Scientific reports, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 6 papers.
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Who cites it
6 citing papers in PubMed, 8 citations in OpenAlex.
- CXCR4 Coordinates Long-Term Olfactory Epithelial Regeneration and Cellular Stress Response After Injury.Molecular neurobiology · 2026Article
- Non-uniform endogenous regeneration of olfactory sensory neuron axons across the mouse olfactory bulb.Scientific reports · 2026Article
- Article
- Heterogeneous Damage to the Olfactory Epithelium in Patients with Post-Viral Olfactory Dysfunction.Journal of clinical medicine · 2023Article
- Prolonged and extended impacts of SARS-CoV-2 on the olfactory neurocircuit.Scientific reports · 2022Article
- Sleep deprivation induces delayed regeneration of olfactory sensory neurons following injury.Frontiers in neuroscience · 2022Article
Corrections and comments
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Authors and funding
6 authors at 2 institutions in 2 countries.
Funding
No grant is acknowledged in the PubMed record.
Abstract
Oxidative stress causes tissue damage, affecting age-related pathologies. Protein restriction (PR) provides a powerful intervention strategy for reducing oxidative stress, which may have a positive effect on individual organs. However, it is unknown whether PR intervention influences the olfactory system. Here, we investigated how 10 months of PR could affect the cell dynamics of the olfactory epithelium (OE) in mice. We found that PR reduced age-related loss of outer hair cells in the cochlea, providing preventive effects against age-related hearing loss. In contrast, PR resulted in reduced mature olfactory sensory neurons (OSNs), increased proliferative basal cells, and increased apoptotic OSNs in zone 1 (the only area containing neurons expressing NQO1 [quinone dehydrogenase 1]) of the OE in comparison with animals given a control diet. Substantial oxidative stress occurred in NQO1-positive cells and induced apoptotic OSNs in zone 1. These results indicate that in contrast to the positive effect on the auditory system, PR induces oxidative stress and structurally and functionally negative effects on OSNs in zone 1, which is probably involved in the bioactivation of NQO1.
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Registered trials
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