ArticleAlzheimer's & dementia (Amsterdam, Netherlands)
Relationships between longitudinal retinal amyloid imaging and amyloid PET in the A4 Trial.
Article in Alzheimer's & dementia (Amsterdam, Netherlands). 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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Abstract
introductionAlzheimer's disease (AD) is associated with retinal amyloid-related changes, which may help identify amyloid positron emission tomography (PET) positive (+) individuals. Previously, in a small cross-sectional study, we reported higher retinal spot counts (RSCs) in preclinical amyloid PET (+) individuals screened for the Anti-Amyloid Treatment in Asymptomatic Alzheimer's Disease (A4) trial compared to control individuals enrolled in the Longitudinal Evaluation of Amyloid Risk and Neurodegeneration (LEARN) trial before drug treatment.
methodsEligible volunteers had retinal scans 48 hours after consuming curcumin. Scans were processed and quantified via NeuroVision. Participants were grouped by amyloid status and treatment to assess the effect of solanezumab on RSC.
resultsRSC did not differ significantly over time between groups and was not modified by treatment, diverging from the cross-sectional retinal amyloid findings observed in A4/LEARN. DISCUSSION: Curcumin-based retinal amyloid labeling shows promise but needs standardized protocols and validation in larger cohorts to understand its relationship to amyloid PET.
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