Investigating the Association Between Verbal Forgetting and Pathological Markers of Alzheimer’s and Lewy Body Diseases

Autor: Alzheimer’s Disease Neuroimaging Initiative, Morgan J Schaeffer, Brandy L. Callahan
Rok vydání: 2019
Předmět:
Zdroj: Journal of Alzheimer's Disease. 70:877-887
ISSN: 1875-8908
1387-2877
DOI: 10.3233/jad-180962
Popis: BACKGROUND The percentage of verbal forgetting (VF%) measure of the Rey Auditory Verbal Learning Test (RAVLT) has been proposed to differentiate patients diagnosed clinically with Alzheimer's disease (AD) and dementia with Lewy bodies (DLB). OBJECTIVE To determine if VF% aligns with gold-standard biomarker and autopsy evidence of AD and DLB neuropathology. METHODS Clinical, cognitive, sociodemographic, and biomarker data were collected from 315 patients with baseline cognitive impairment and 485 normal controls from the Alzheimer's Disease Neuroimaging Initiative (ADNI). AD markers included reduced cerebrospinal fluid (CSF) amyloid-β, elevated total-tau and phosphorylated-tau, hippocampal atrophy, and the presence of amyloid plaques and neurofibrillary tangles at autopsy. DLB markers included reduced CSF α-synuclein, preserved hippocampus, atrophied putamen, occipital glucose metabolism, and the presence of Lewy bodies at autopsy. Cognitively impaired participants were classified as ADVF% (n = 190) or DLBVF% (n = 125) based on their RAVLT VF% scores using a 75% cut-off (≥75% = ADVF%
Databáze: OpenAIRE