Search Existing Data Requests

The Knight ADRC has supported many investigators at Washington University and at other institutions over the years. We wish to avoid the situation where two investigators study the same research question to avoid duplication of effort and potential conflict. To determine if your topic has already been studied with our resources, please search our database. If you find that your topic or a related topic has been submitted, you may wish to contact the investigator to inquire about their findings to determine how you might proceed. You may wish to collaborate or modify your request to avoid overlap. The results below reflect requests made since online requests have been accepted. As such, not all fields will have data as certain information, such as aims, were not collected until recently. If an entry has been assigned an ID number (e.g. T1004), the full request has been submitted and is either approved, disapproved or in process. If an entry has no ID number, then it represents a submission that has not yet been reviewed. Search terms are applied across an entire requests application including variables not displayed below. A more specific, detailed search may yield better results depending upon your needs.


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Investigator: Brian Gordon

Project Title: Comparing biomarkers between Down Syndrome, Autosomal Dominant, and Late onset Alzheimer Disease

Date: March 25, 2022 at 5:36 pm

Request ID: D2205

Aim 1: How do measures of tau pathology measured using PET compare among DS, ADAD, and LOAD?

Aim 2: Does the spread of tau pathology over time differ between cohorts?

Aim 3: How do the degree and spatial patterns of neurodegeneration compare between DS, ADAD, and LOAD?

Aim 4: How do biofluid profiles compare between DS, ADAD, and LOAD? We will expand upon our prior publication


Investigator: Karin Meeker

Project Title: Alzheimer disease heterogeneity profiles in ethno-racial minorities

Date: March 25, 2022 at 2:36 pm

Request ID: D2204

Aim 1: Determine AD brain volume heterogeneity profiles of neuroimaging markers (i.e., magnetic resonance imaging [MRI], resting-state functional connectivity [RS-FC]), cognition, and AD biomarkers (i.e., plasma amyloid and tau).

Aim 2: Assess group differences in heterogeneity profiles between Blacks and Non-Hispanic Whites.

Aim 3: Determine whether social determinants of health (SDOH; e.g., ADI) mediate group differences in heterogeneity profiles.

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Investigator: Jennifer Shearon

Project Title: Exercise as a mediator of the effects of personality on vascular and brain health

Date: March 11, 2022 at 2:44 pm

Request ID: D2203

Aim 1: The primary goal of this project is to examine whether long-term exercise engagement and exercise variability mediate the effects of personality on vascular health and brain structure.

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Investigator: Brice McConnell, MD, PhD

Project Title: An Assessment of Novel Sleep-Related Neurophysiological Events in the Context of Cognitive Impairment and Alzheimer’s Disease

Date: February 16, 2022 at 9:55 pm

Request ID: D2202

Aim 1: Aim 1: Elucidate the relationship(s) between loss of theta burst power and longitudinal cognitive performance

Aim 2: Exploratory Aim 1: Examine the relationship between slow wave sleep composition and Alzheimer’s disease pathology

Aim 3: Exploratory Aim 2: Examine the relationship between slow wave sleep composition and longitudinal cognitive performance

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Investigator: Mark McAvoy

Project Title: The relationship of BOLD mean and standard deviation to iron deposition in healthy aging and dementia

Date: January 24, 2022 at 9:35 am

Request ID: D2125

Aim 1: Explore the affect iron deposition has on the BOLD mean and standard deviation.

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Investigator: Sylvia Villeneuve

Project Title: In unimpaired older adults, tau PET predicts near-term development of Mild Cognitive Impairment

Date: January 24, 2022 at 9:29 am

Request ID: D2126

Aim 1: We aim to elucidate whether elevated tau- positron emission tomography (PET) signal, in the presence of elevated Aβ, prospectively predict short-term conversion from cognitively unimpaired to mild cognitive impairment (MCI).

Aim 2: We are interested whether the presence of neurodegeneration (smaller hippocampal volume or thinner cortex in temporal regions) added predictive values to the amyloid and tau PET biomarkers.

Aim 3: Given that we have found results providing evidence to support our hypotheses regarding aim 1 and 2, we would like to try to replicate our findings in a separate cohort.

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Investigator: Chia-Ling Phuah

Project Title: Age Stratified Total WMH GWAS

Date: January 24, 2022 at 9:19 am

Request ID: D2201

Aim 1: Identify novel loci for white matter hyperintensities that have age-dependent genetic effects

Aim 2: External validation of a previously developed deep learning WMH segmentation method for volumetric total WMH measurements

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Investigator: Dr Jin Moo Lee

Project Title: The neuronal injury biomarker VLP-1 correlates with dementia severity and brain atrophy in DAT

Date: December 21, 2021 at 5:18 pm

Request ID: D0906

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Investigator: Anders Dale

Project Title: Genetics of structural brain imaging phenotypes

Date: December 21, 2021 at 5:18 pm

Request ID: D0904

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Investigator: paul nelson

Project Title: testing for a difference among three or more distributions

Date: December 21, 2021 at 5:18 pm

Request ID: D0907

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