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Lifecourse CVD Risk and Midlife Cognitive Trajectories and Brain Aging: Implications for Alzheimer's and Dementia Prevention

Award Number: R01AG063887
ORGANIZATION: NATIONAL INSTITUTE ON AGING
OPDIV: NIH
AWARD CLASS: DISCRETIONARY
AWARD ACTIVITY TYPE: SCIENTIFIC/HEALTH RESEARCH (INCLUDES SURVEYS)
PERIOD OF PERFORMANCE START DATE: 09/01/2019
PERIOD OF PERFORMANCE END DATE: 05/31/2025

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Lifecourse CVD Risk and Midlife Cognitive Trajectories and Brain Aging: Implications for Alzheimer's and Dementia Prevention - ABSTRACT Vascular health has emerged as one of the most important determinants of Alzheimer's disease and related dementias. Early adult and midlife cardiovascular disease (CVD) risk factors and subclinical disease may be important drivers of cognitive decline in midlife, a period that most likely is critical for influencing later life dementia risk. Yet, few studies have investigated early adulthood CVD risk exposures, including timing of exposure and whether subthreshold levels impact later life cognition. To accomplish these goals, we propose, to add cognitive testing to the Year 35 visit of the ongoing multisite Coronary Artery Risk Development in Young Adults (CARDIA) study. At baseline, CARDIA enrolled 5,115 black and white participants (mean age 24) who have been carefully followed for 30 years and had cognitive testing at visit years 25 and 30. Cognitive evaluation at Year 35 will allow us to determine 10-year cognitive change (mean age 50 to 60) at a critical time point when cognitive decline starts to diverge and potentially impacts late-life dementia risk. Our specific aims are: 1) To determine, using a life-course approach, the independent associations of 10-year midlife cognitive decline with timing, level (both subthreshold and threshold) and trend in CVD risk factors including body mass index, blood pressure, and fasting glucose, assessed over 35 years from early adult to midlife; 2) To determine the association of 10-year midlife cognitive decline with novel subclinical CVD markers over time including carotid artery intima thickness, coronary artery calcification and cardiac function; 3) To determine whether CVD risk factors and subclinical CVD markers are associated with brain aging indices in midlife, derived by the application of machine-learning neuroimaging pattern analysis to brain MRI and diffusion tensor imaging data obtained on nearly 700 CARDIA participants at midlife; Exploratory) To assess black/white disparities in 10- year cognitive decline and determine the extent to which such disparities are explained by burden of CVD risk. Guided by strong preliminary data, our main hypothesis is that CVD risk factors begin to exert influence as early as the third decade of life and that subthreshold levels (eg systolic blood pressure ≥120 mm) are important drivers for this. In addition, we hypothesize that subclinical CVD measures (especially cardiac function and atherosclerosis) are associated with greater decline in midlife cognition and accelerated brain aging. No other study in the US has such comprehensive data on a wide array of early adult CVD risk factors that may influence cognitive aging. As an experienced multidisciplinary team using innovative statistical methods to analyze essentially unique longitudinal data on early adult and midlife CVD risk factors and subclinical disease, we have the opportunity to investigate the associations of these life-course exposures with cognitive decline and brain health in midlife. Identifying dementia risk factors early in the life-course may lead to interventions to help maintain healthy brain aging and prevent the onset of dementia.


Issue Date FY	Funding FY	Legal Entity Name	Legal Entity Address	Legal Entity City	Legal Entity State	Legal Entity Zip Code	Legal Entity COUNTY	Legal Entity COUNTRY	Assistance Listing	Award Code	Budget Year	Action Date	Action Type	Action Amount

Issue Date FY: 2024 ( Subtotal = $0 )
2024	2022	NORTHERN CALIFORNIA INSTITUTE FOR RESEARCH AND EDUCATION, INC.	4150 CLEMENT ST # 151	SAN FRANCISCO	CA	94121	SAN FRANCISCO	USA	Aging Research	000	4	5/2/2024	NON-COMPETING CONTINUATION	$0
														Subtotal = $0

Issue Date FY: 2023 ( Subtotal = $0 )
2023	2022	NORTHERN CALIFORNIA INSTITUTE FOR RESEARCH AND EDUCATION, INC.	4150 CLEMENT ST 151 NC	SAN FRANCISCO	CA	94121	SAN FRANCISCO	USA	Aging Research	000	4	5/12/2023	NON-COMPETING CONTINUATION	$0
														Subtotal = $0

Issue Date FY: 2022 ( Subtotal = $724,187 )
2022	2022	NORTHERN CALIFORNIA INSTITUTE FOR RESEARCH AND EDUCATION, INC.	4150 CLEMENT ST 151 NC	SAN FRANCISCO	CA	94121	SAN FRANCISCO	USA	Aging Research	000	4	6/9/2022	NON-COMPETING CONTINUATION	$724,187
														Subtotal = $724,187

Issue Date FY: 2021 ( Subtotal = $740,671 )
2021	2021	NORTHERN CALIFORNIA INSTITUTE FOR RESEARCH AND EDUCATION, INC.	4150 CLEMENT ST 151 NC	SAN FRANCISCO	CA	94121	SAN FRANCISCO	USA	Aging Research	000	3	6/7/2021	NON-COMPETING CONTINUATION	$740,671
														Subtotal = $740,671

Issue Date FY: 2020 ( Subtotal = $755,657 )
2020	2020	NORTHERN CALIFORNIA INSTITUTE FOR RESEARCH AND EDUCATION, INC.	4150 CLEMENT ST 151 NC	SAN FRANCISCO	CA	94121	SAN FRANCISCO	USA	Aging Research	000	2	5/26/2020	NON-COMPETING CONTINUATION	$755,657
														Subtotal = $755,657

Issue Date FY: 2019 ( Subtotal = $829,290 )
2019	2019	NORTHERN CALIFORNIA INSTITUTE FOR RESEARCH AND EDUCATION, INC.	4150 CLEMENT ST 151 NC	SAN FRANCISCO	CA	94121	SAN FRANCISCO	USA	Aging Research	000	1	8/8/2019	NEW	$829,290
														Subtotal = $829,290

Grand Total All Awards = $3,049,805

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Lifecourse CVD Risk and Midlife Cognitive Trajectories and Brain Aging: Implications for Alzheimer's and Dementia Prevention

Award Number: R01AG063887

ORGANIZATION: NATIONAL INSTITUTE ON AGING

OPDIV: NIH

AWARD CLASS: DISCRETIONARY

AWARD ACTIVITY TYPE: SCIENTIFIC/HEALTH RESEARCH (INCLUDES SURVEYS)

PERIOD OF PERFORMANCE START DATE: 09/01/2019

PERIOD OF PERFORMANCE END DATE: 05/31/2025

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