Affiliations: [a]
Center for Alzheimer Research and Treatment, Boston, MA, USA
| [b] Department of Neurology, Brigham and Women’s Hospital, Harvard Medical School, Boston, MA, USA
| [c] Department of Neurology, Massachusetts General Hospital, Harvard Medical School, Boston, MA, USA
Correspondence:
[*]
Correspondence to: Gad A. Marshall, MD, Center for Alzheimer Research and Treatment, Brigham and Women’s Hospital, 60 Fenwood Road, 9016P, Boston, MA 02115, USA. Tel.: +1 617 732 8085; Fax: +1 617 264 6831; E-mail: gamarshall@partners.org.
Note: [1] Data used in preparation of this article were obtained from the Alzheimer’s Disease Neuroimaging Initiative (ADNI) database (http://adni.loni.usc.edu). As such, the investigators within the ADNI contributed to the design and implementation of ADNI and/or provided data but did not participate in analysis or writing of this report. A complete listing of ADNI investigators can be found at: http://adni.loni.usc.edu/wp-content/uploads/how_to_apply/ADNI_Acknowledgement_List.pdf
Abstract: Background:Financial capacity is often one of the first instrumental activities of daily living to be affected in cognitively normal (CN) older adults who later progress to amnestic mild cognitive impairment (MCI) and Alzheimer’s disease (AD) dementia. Objective:The objective of this study was to investigate the association between financial capacity and regional cerebral tau. Methods:Cross-sectional financial capacity was assessed using the Financial Capacity Instrument –Short Form (FCI-SF) in 410 CN, 199 MCI, and 61 AD dementia participants who underwent flortaucipir tau positron emission tomography from the Alzheimer’s Disease Neuroimaging Initiative (ADNI). Linear regression models with backward elimination were used with FCI-SF total score as the dependent variable and regional tau and tau-amyloid interaction as predictors of interest in separate analyses. Education, age, sex, Rey Auditory Verbal Learning Test Total Learning, and Trail Making Test B were used as covariates. Results:Significant associations were found between FCI-SF and tau regions (entorhinal: p < 0.001; inferior temporal: p < 0.001; dorsolateral prefrontal: p = 0.01; posterior cingulate: p = 0.03; precuneus: p < 0.001; and supramarginal gyrus: p = 0.005) across all participants. For the tau-amyloid interaction, significant associations were found in four regions (amyloid and dorsolateral prefrontal tau interaction: p = 0.005; amyloid and posterior cingulate tau interaction: p = 0.005; amyloid and precuneus tau interaction: p < 0.001; and amyloid and supramarginal tau interaction: p = 0.002). Conclusion:Greater regional tau burden was modestly associated with financial capacity impairment in early-stage AD. Extending this work with longitudinal analyses will further illustrate the utility of such assessments in detecting clinically meaningful decline, which may aid clinical trials of early-stage AD.
Keywords: Alzheimer’s disease, amyloid, financial capacity, instrumental activities of daily living, mild cognitive impairment, positron emission tomography, tau
