Dementia and geriatric cognitive disorders extra · 2021
A Review of Functional Neuroimaging in People with Down Syndrome with and without Dementia.
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Deinde Funmi, Kotecha Jay, Lau Lilian Suh Lih, Bhattacharyya Sagnik, Velayudhan Latha
Аннотация
BACKGROUND: Individuals with Down syndrome (DS) are at high risk of dementia which is difficult to diagnose in DS. Neuroimaging has been identified as a potential tool to aid diagnosis by detecting changes in brain function. We carried out a review comparing functional neuroimaging in DS individuals with and without dementia.
SUMMARY: A literature search was conducted using PubMed to identify relevant studies. In DS subjects with dementia, fluorodeoxyglucose-positron emission tomography (PET) studies showed glucose hypometabolism particularly in the parietal and/or temporal regions whilst magnetic resonance spectroscopy studies showed increased myoinositol and decreased N-acetylaspartate. Ligand-based PET studies revealed significant Pittsburgh compound B binding in DS subjects over the age of 40, particularly if they had dementia.
KEY MESSAGES: Neuroimaging may aid the early detection of dementia in DS; however, further longitudinal studies are required.
SUMMARY: A literature search was conducted using PubMed to identify relevant studies. In DS subjects with dementia, fluorodeoxyglucose-positron emission tomography (PET) studies showed glucose hypometabolism particularly in the parietal and/or temporal regions whilst magnetic resonance spectroscopy studies showed increased myoinositol and decreased N-acetylaspartate. Ligand-based PET studies revealed significant Pittsburgh compound B binding in DS subjects over the age of 40, particularly if they had dementia.
KEY MESSAGES: Neuroimaging may aid the early detection of dementia in DS; however, further longitudinal studies are required.