The goal of the project is to clarify the cognitive transitions that lead from normality to well-defined intermediate states and from intermediate states to Alzheimer's Disease (AD) or AD and Vascular Dementia (AD/VaD) as well as the risk factors and protective factors that influence those transitions. AD and AD/VaD develop in 3 stages which can be retrospectively identified using change point models: a stage of relative cognitive stability, a stage of accelerated cognitive decline and a stage of clinical dementia. Based on theoretical considerations, we have developed and tested two prospective operational definitions for intermediate states of Cognitive Impairment. The first, Anmestic Cognitive Impairment (ACI) has a prevalence of 21%, more than 4 times the prevalence of amnestic Mild Cognitive Impairment (MCI) in our sample, and is associated with a 10% annual conversion rate to dementia. A second, less well characterized intermediate stage, Nonamnestic Cognitive Impairment (NACI) has a prevalence of 15%. These constructs expand the pool of potential subjects for preventive interventions. In addition, emerging evidence suggests that the influence of risk factors on AD and AD/VaD may depend upon the stage of illness. This project proposes to assess five categories of risk factors in the context of a stage of illness model. Risk factor categories include modifiable cardiovascular risk factors, clinical and neuropsychological measures, sociodemographic and selected behavioral measures, biological markers (inflammation, thrombosis, lipid profiles and plasma Abeta) as well as neuroimaging. Ultimately, this research should facilitate the translation of epidemiologic research into clinical trials and public health practice by better defining the intermediate states that lead to dementia and assessing risk factors in a framework tied to models of primary and secondary prevention.

Agency
National Institute of Health (NIH)
Institute
National Institute on Aging (NIA)
Type
Research Program Projects (P01)
Project #
5P01AG003949-25
Application #
7637323
Study Section
Special Emphasis Panel (ZAG1)
Project Start
Project End
Budget Start
2008-07-01
Budget End
2009-06-30
Support Year
25
Fiscal Year
2008
Total Cost
$399,953
Indirect Cost
Name
Albert Einstein College of Medicine
Department
Type
DUNS #
110521739
City
Bronx
State
NY
Country
United States
Zip Code
10461
Zammit, Andrea R; Robitaille, Annie; Piccinin, Andrea et al. (2018) Associations between aging-related changes in grip strength and cognitive function in older adults: A systematic review. J Gerontol A Biol Sci Med Sci :
Graham-Engeland, Jennifer E; Sin, Nancy L; Smyth, Joshua M et al. (2018) Negative and positive affect as predictors of inflammation: Timing matters. Brain Behav Immun 74:222-230
Hyun, Jinshil; Sliwinski, Martin J; Smyth, Joshua M (2018) Waking Up on the Wrong Side of the Bed: The Effects of Stress Anticipation on Working Memory in Daily Life. J Gerontol B Psychol Sci Soc Sci :
Li, Zeran; Del-Aguila, Jorge L; Dube, Umber et al. (2018) Genetic variants associated with Alzheimer's disease confer different cerebral cortex cell-type population structure. Genome Med 10:43
Majd, Marzieh; Graham-Engeland, Jennifer E; Smyth, Joshua M et al. (2018) Distinct inflammatory response patterns are evident among men and women with higher depressive symptoms. Physiol Behav 184:108-115
Bond, Dale S; Thomas, J Graham; Lipton, Richard B et al. (2018) Behavioral Weight Loss Intervention for Migraine: A Randomized Controlled Trial. Obesity (Silver Spring) 26:81-87
Zammit, Andrea R; Hall, Charles B; Katz, Mindy J et al. (2018) Class-Specific Incidence of All-Cause Dementia and Alzheimer's Disease: A Latent Class Approach. J Alzheimers Dis 66:347-357
Sun, Wenyan; Samimi, Hanie; Gamez, Maria et al. (2018) Pathogenic tau-induced piRNA depletion promotes neuronal death through transposable element dysregulation in neurodegenerative tauopathies. Nat Neurosci 21:1038-1048
Hill, Nikki L; Mogle, Jacqueline (2018) Alzheimer's disease risk factors as mediators of subjective memory impairment and objective memory decline: protocol for a construct-level replication analysis. BMC Geriatr 18:260
Eurelings, Lisa Sm; van Dalen, Jan Willem; Ter Riet, Gerben et al. (2018) Apathy and depressive symptoms in older people and incident myocardial infarction, stroke, and mortality: a systematic review and meta-analysis of individual participant data. Clin Epidemiol 10:363-379

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