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The olfactory vector hypothesis of neurodegenerative disease: Is it viable?
Author(s) -
Doty Richard L.
Publication year - 2008
Publication title -
annals of neurology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 4.764
H-Index - 296
eISSN - 1531-8249
pISSN - 0364-5134
DOI - 10.1002/ana.21327
Subject(s) - neuroscience , olfactory system , disease , parkinson's disease , olfactory mucosa , pathological , dementia , alzheimer's disease , biology , medicine , pathology
Environmental agents, including viruses, prions, and toxins, have been implicated in the cause of a number of neurodegenerative diseases, most notably Alzheimer's and Parkinson's diseases. The presence of smell loss and the pathological involvement of the olfactory pathways in the formative stages of Alzheimer's and Parkinson's diseases, together with evidence that xenobiotics, some epidemiologically linked to these diseases, can readily enter the brain via the olfactory mucosa, have led to the hypothesis that Alzheimer's and Parkinson's diseases may be caused or catalyzed by agents that enter the brain via this route. Evidence for and against this concept, the “olfactory vector hypothesis,” is addressed in this review. Ann Neurol 2008;63:7–15

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