ArticlemedRxiv : the preprint server for health sciences2024
Psychotic symptoms are associated with elevated tau PET signal in the amygdala independent of Alzheimer's disease clinical severity and amyloid burden.
Article in medRxiv : the preprint server for health sciences, 2024. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
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13 authors at 2 institutions in 1 country.
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Abstract
Background: Psychosis in Alzheimer's disease (AD) is associated with worse outcomes, yet no established biomarkers exist for early diagnosis and intervention. We compared tau PET burden across older individuals with and without psychotic symptoms. Methods: [ Results: Tau was greater in individuals with psychotic symptoms in the amygdala in region-of-interest analyses, and in amygdala, thalamus, putamen, right hippocampus, right entorhinal cortex, and right frontal cortex in voxel-based analyses. When considering different onset and type of psychotic symptoms, tau binding was greatest in those with concurrent delusions. Conclusion: Elevated tau in limbic regions may be relevant for psychotic symptoms in aging and AD.
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