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6 - Smell, Disgust, and Alzheimer’s

Published online by Cambridge University Press:  19 January 2024

Daniel Gibbs
Affiliation:
Emeritus of Oregon Health and Science University
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Summary

The earliest neuropathological changes of Alzheimer’s disease, the beta-amyloid plaques, usually appear first in olfactory parts of the brain including the olfactory bulb, anterior olfactory nucleus, and entorhinal cortex. I totally lost my ability to smell several years before I developed any measurable cognitive impairment. Almost all people with Alzheimer’s have at least some impairment of olfaction, but most are not aware of it unless tested, probably because it comes on so gradually.

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Chapter
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Publisher: Cambridge University Press
Print publication year: 2024

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References

Serrano-Pozo, A, Frosch, MP, Masliah, E, Hyman, BT. Neuropathological alterations in Alzheimer disease. Cold Spring Harb Perspect Med 2011; 1(1): a006189. https://doi.org/10.1101/cshperspect.a006189. PMID: 22229116; PMCID: PMC3234452 (open access version).CrossRefGoogle ScholarPubMed
Holland, TM, Agarwal, P, Wang, Y, et al. Dietary flavonols and risk of Alzheimer’s dementia. Neurology 2020; 94: e1749e1756 (open access version available at www.ncbi.nlm.nih.gov/pmc/articles/PMC7282875).CrossRefGoogle Scholar
Wicker, B, Keysers, C, Plailly, J, et al. Both of us disgusted in my insula: The common neural basis seeing and feeling disgust. Neuron 2003; 40: 655664. https://doi.org/10.1016/s0896-6273(03)00679-2. PMID: 14642287 (open access version).CrossRefGoogle Scholar
Hawkes, CH, Doty, RL. Smell and Taste Disorders. Cambridge: Cambridge University Press, 2018, p. 20.CrossRefGoogle Scholar

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  • Smell, Disgust, and Alzheimer’s
  • Daniel Gibbs, Emeritus of Oregon Health and Science University
  • Book: Dispatches from the Land of Alzheimer's
  • Online publication: 19 January 2024
  • Chapter DOI: https://doi.org/10.1017/9781009430067.007
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  • Smell, Disgust, and Alzheimer’s
  • Daniel Gibbs, Emeritus of Oregon Health and Science University
  • Book: Dispatches from the Land of Alzheimer's
  • Online publication: 19 January 2024
  • Chapter DOI: https://doi.org/10.1017/9781009430067.007
Available formats
×

Save book to Google Drive

To save content items to your account, please confirm that you agree to abide by our usage policies. If this is the first time you use this feature, you will be asked to authorise Cambridge Core to connect with your account. Find out more about saving content to Google Drive.

  • Smell, Disgust, and Alzheimer’s
  • Daniel Gibbs, Emeritus of Oregon Health and Science University
  • Book: Dispatches from the Land of Alzheimer's
  • Online publication: 19 January 2024
  • Chapter DOI: https://doi.org/10.1017/9781009430067.007
Available formats
×