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: David Holtzman

Project Title: Rate of dementia progression in TREM2 variant carriers with neuropathologically confirmed AD

Date: December 21, 2021 at 5:18 pm

Request ID: D1618

Aim 1: Do variants in the TREM2 gene that are associated with an increased risk of developing Alzheimer disease affect the clinical course of the disease?

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Investigator: Michael Cole

Project Title: Examining changes in functional network structure

Date: December 21, 2021 at 5:18 pm

Request ID: D1619

Aim 1: Examine changes in functional fMRI networks during task and resting state

Aim 2: Relate differences in network structure to Alzheimer biomarkers

Aim 3: Calculate changes in network structure in two different resting state scans

Aim 4: Use differences in longitudinal resting state structure to predict longitudinal cognition


Investigator: Samantha Allison

Project Title: Relationship between proton pump inhibitors and risk of dementia, cognition, brain structure, and Alzheimer disease biomarkers

Date: December 21, 2021 at 5:18 pm

Request ID: D1701

Aim 1: Examine the relationship between proton pump inhibitors and both risk of dementia and longitudinal change in cognition.

Aim 2: Examine the relationship between proton pump inhibitors and biological markers of Alzheimer disease (e.g., regional based brain volumes obtained via structural MRI, amyloid PET, and CSF biomarkers).

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Investigator: Sergey Shcherbinin

Project Title: Potential usage of PET-based perfusion measurements as candidates neurodegeneration biomarkers

Date: December 21, 2021 at 5:18 pm

Request ID: D1702

Aim 1: Analyze dynamic PET images obtained using different radiotracers

Aim 2: Optimize time window to measure perfusion using PET tracers

Aim 3: Perform cross-sectional and longitudinal comparison between perfusion measures and other biomarkers/scores

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Investigator: Arnaud Charil

Project Title: Potential usage of diffusion basis spectrum imaging (DBSI) to assess white matter inflammation in Alzheimer�s disease

Date: December 21, 2021 at 5:18 pm

Request ID: D1703

Aim 1: Generate a normative profile (across brain regions/tracts and subjects) of DBSI parameters, suitable for expressing (defining) �abnormal� levels of these parameters

Aim 2: Explore the profile of abnormalities in the different DBSI parameters in more advanced NIA-AA stage individuals

Aim 3: Refine potential analysis strategies for application to clinical trials

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Investigator: Jee-young Han

Project Title: Clinical outcomes and its predictors in CDR 0.5, uncertain dementia

Date: December 21, 2021 at 5:18 pm

Request ID: D1704

Aim 1: To define and differentiate clinical characteristics of CDR 0.5, uncertain dementia

Aim 2: To demonstrate the clinical outcomes of CDR 0.5, uncertain dementia

Aim 3: To determine predictors of progression of CDR 0.5, uncertain dementia to AD

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Investigator: Catherine roe

Project Title: Preliminary data for Mike Wiener project on behalf of JCM

Date: December 21, 2021 at 5:18 pm

Request ID: D1705

Aim 1: To compare ability of AD8 and CDR to predict AD dementia

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Investigator: Thomas Liebmann

Project Title: Validation of quantitative virtual microscopy as a novel tool for early detection of neurodegeneration and Alzheimer’s disease from magnetic resonance imaging data

Date: December 21, 2021 at 5:18 pm

Request ID: D1707

Aim 1: Establish diagnosis accuracy on confirmed Alzheimer’s disease patient MRI scans using quantitative virtual microscopy

Aim 2: Establish early detection accuracy for discriminating pre-symptomatic degeneration from non-degenerating healthy individuals using quantitative virtual microscopy analysis on MRI scans

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Investigator: Jianguo Sun

Project Title: Identifification and Prediction of Longutudinal Biomarkers and Survival Events for Aging and Alzheimer’s disease

Date: December 21, 2021 at 5:18 pm

Request ID: D1708

Aim 1: Develop new and novel statistical models and procedures for identifying longitudinal biomarkers that are related to aging or Alzheimer’s disease and can be used to predict the onset of the disease or its related symptoms.

Aim 2: Specific Aim 2: Aim 2: Develop new and novel statistical models and procedures for joint analysis of longitudinal biomarkers and survival events or symptoms related to aging or Alzheimer’s disease that can take into account the possible existence of informative examination scheme and/or dropout.

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Investigator: Matthew Harms/ Timothy Miller

Project Title: In vivo tau imaging by PET in patients with C9orf72 repeat expansions

Date: December 21, 2021 at 5:18 pm

Request ID: D1709

Aim 1: Determine whether AV-1451 PET imaging can identify tau deposition in C9orf72 expansion carriers

Aim 2: Determine whether AV-1451 uptake in C9orf72 expansion carriers correlate to measures of cognitive and motor impairment

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