ArticleInternational journal of molecular sciences2022
Biometal Dyshomeostasis in Olfactory Mucosa of Alzheimer's Disease Patients.
Article in International journal of molecular sciences, 2022. 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, 16 citations in OpenAlex.
- Cellular redox status is linked to olfactory alterations in cognitive decline.Redox biology · 2026Article
- Olfactory-Cleft Biopsy in Alzheimer's Disease: An Emerging Neuroimmune Window into Preclinical Pathobiology.International journal of molecular sciences · 2026Review
- Olfactory Mucosa Mesenchymal Stem Cell-Derived Exosomes Enhance Microglia M2 Polarization via the FGFR1/PLCγ1 Axis to Alleviate Alzheimer's Disease.Molecular neurobiology · 2026Article
- Transcriptomic and epigenomic profiling reveals altered responses to diesel emissions in Alzheimer's disease both in vitro and in population-based data.Alzheimer's & dementia : the journal of the Alzheimer's Association · 2024Article
- Human-derived air-liquid interface cultures decipher Alzheimer's disease-SARS-CoV-2 crosstalk in the olfactory mucosa.Journal of neuroinflammation · 2023Article
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Authors and funding
17 authors at 6 institutions in 4 countries.
Funding
Abstract
Olfactory function, orchestrated by the cells of the olfactory mucosa at the rooftop of the nasal cavity, is disturbed early in the pathogenesis of Alzheimer's disease (AD). Biometals including zinc and calcium are known to be important for sense of smell and to be altered in the brains of AD patients. Little is known about elemental homeostasis in the AD patient olfactory mucosa. Here we aimed to assess whether the disease-related alterations to biometal homeostasis observed in the brain are also reflected in the olfactory mucosa. We applied RNA sequencing to discover gene expression changes related to metals in olfactory mucosal cells of cognitively healthy controls, individuals with mild cognitive impairment and AD patients, and performed analysis of the elemental content to determine metal levels. Results demonstrate that the levels of zinc, calcium and sodium are increased in the AD olfactory mucosa concomitantly with alterations to 17 genes related to metal-ion binding or metal-related function of the protein product. A significant elevation in alpha-2-macroglobulin, a known metal-binding biomarker correlated with brain disease burden, was observed on the gene and protein levels in the olfactory mucosa cells of AD patients. These data demonstrate that the olfactory mucosa cells derived from AD patients recapitulate certain impairments of biometal homeostasis observed in the brains of patients.
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Registered trials
Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.