The biological underpinnings of Motoric Cognitive Risk syndrome: a multi-center study
运动认知风险综合征的生物学基础:一项多中心研究
基本信息
- 批准号:10359867
- 负责人:
- 金额:$ 22.47万
- 依托单位:
- 依托单位国家:美国
- 项目类别:
- 财政年份:2020
- 资助国家:美国
- 起止时间:2020-06-15 至 2025-03-31
- 项目状态:未结题
- 来源:
- 关键词:AccountingAddressAffectAgingAlzheimer&aposs DiseaseAlzheimer&aposs disease riskAreaAtrophicBiologicalBiological AssayBiological MarkersBiologyBlood VesselsBrainBrain PathologyClinicalCognitiveCommunitiesComplexDataDementiaDiagnosisElderlyEpidemiologyGaitGeneticGenetic Predisposition to DiseaseIncidenceIndividualInflammatoryKnowledgeLaboratoriesLinkMicrovascular DysfunctionMotorMulticenter StudiesObesityOxidative StressPathogenesisPathway interactionsPhysical activityRiskRisk FactorsSamplingSyndromeTestingTimeVascular Dementiaclinical phenotypecognitive testingcohortcost efficientdepressive symptomsgray matterhigh riskmild cognitive impairmentmodifiable riskmotor controlneuroimagingnovelpolygenic risk score
项目摘要
Motoric Cognitive Risk syndrome (MCR) is a pre-dementia syndrome characterized by the presence of subjective
cognitive complaints and slow gait. MCR affects almost in 1 in 10 older adults, and has a high incidence in aging.
MCR predicts risk of both Alzheimer’s disease (AD) and vascular dementia even after accounting for clinical
overlap with Mild Cognitive Impairment syndrome (MCI). Complex cognitive tests or laboratory assays are not
required for diagnosing MCR, increasing its clinical utility. MCR has incremental predictive validity for dementia
over its individual cognitive (cognitive complaints) and motoric (slow gait) components. Yet, the biological
underpinnings of MCR are not yet established. To address this knowledge gap, we propose to establish a
consortium of eight cohorts with ~11,000 community-dwelling older adults with clinical phenotypes,
biological/genetic, and neuroimaging data; a time and cost efficient approach to examine the biology of MCR.
Aim 1. Identify biological mechanisms underlying MCR incidence. Modifiable risk factors for incident MCR
include depressive symptoms, obesity, and low physical activity; which are correlated with each other as well as
share common biological derangements in inflammatory, oxidative stress and vascular pathways. We also linked
Alzheimer and obesity-related polygenic risk scores to prevalent MCR at cross-section. Building on these
findings, we will examine biomarkers and polygenic risk of developing incident MCR. We will test our hypotheses
primarily in individual cohorts and secondarily in a pooled sample of 8,300 individuals with biomarker data.
Aim 2. Establish neuroanatomical substrates of MCR syndrome. We linked a novel gray matter atrophy
network to MCR at cross-section in 3 of our cohorts, which was composed of areas linked primarily, but not
exclusively, to motor control. Herein, we will examine if this brain network is vulnerable early in MCR, and predicts
incident MCR. This aim will be tested primarily in individual cohorts, and secondarily in a pooled subsample of
~2,120 individuals with 3T MRIs. Furthermore, in a subset of 1,100 individuals with up to 3 serial MRIs, we will
examine longitudinal changes in this unique brain network in the context of MCR and small vessel disease.
Aim 3. Compare and contrast biology and brain substrates for MCR and MCI syndromes. We will explore
similarities and differences in new biological associations as well as known AD risk factors with MCR and MCI.
There is only partial clinical overlap between MCR and MCI. While we expect partial biological overlap, our
studies show exclusive genetic predispositions, brain pathologies and brain substrates for MCR not seen with
MCI. The MCR syndrome is not conceptualized as an alternate to MCI but complementary.
运动认知危险综合征(MCR)是一种以主观认知障碍存在为特征的痴呆前期综合征
项目成果
期刊论文数量(0)
专著数量(0)
科研奖励数量(0)
会议论文数量(0)
专利数量(0)
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JOE VERGHESE其他文献
JOE VERGHESE的其他文献
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{{ truncateString('JOE VERGHESE', 18)}}的其他基金
The biological underpinnings of Motoric Cognitive Risk syndrome: a multi-center study
运动认知风险综合征的生物学基础:一项多中心研究
- 批准号:
10183121 - 财政年份:2020
- 资助金额:
$ 22.47万 - 项目类别:
The biological underpinnings of Motoric Cognitive Risk syndrome: a multi-center study
运动认知风险综合征的生物学基础:一项多中心研究
- 批准号:
10611122 - 财政年份:2020
- 资助金额:
$ 22.47万 - 项目类别:
The biological underpinnings of Motoric Cognitive Risk syndrome: a multi-center study
运动认知风险综合征的生物学基础:一项多中心研究
- 批准号:
10377509 - 财政年份:2020
- 资助金额:
$ 22.47万 - 项目类别:
The biological underpinnings of Motoric Cognitive Risk syndrome: a multi-center study
运动认知风险综合征的生物学基础:一项多中心研究
- 批准号:
10612349 - 财政年份:2020
- 资助金额:
$ 22.47万 - 项目类别:
The biological underpinnings of Motoric Cognitive Risk syndrome: a multi-center study
运动认知风险综合征的生物学基础:一项多中心研究
- 批准号:
9562162 - 财政年份:2017
- 资助金额:
$ 22.47万 - 项目类别:
5-Cog Battery to improve detection of cognitive impairment and dementia
5-Cog 电池可改善认知障碍和痴呆症的检测
- 批准号:
9769547 - 财政年份:2017
- 资助金额:
$ 22.47万 - 项目类别:
5-Cog Battery to improve detection of cognitive impairment and dementia
5-Cog 电池可改善认知障碍和痴呆症的检测
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