Search Existing Tissue 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: Kenneth S. Kosik

Project Title: Gene expression analysis of MAPT mutation carriers

Date: December 21, 2021 at 5:02 pm

Request ID: T1407

Aim 1: Transcriptome sequencing for RNA obtained from neurons derived from iPS patients

Aim 2: Comparison of differentially expressed genes compared to human healthy lines and tissue

Aim 3: miRNA profiling of these samples as in 1

Aim 4: Determination of coexpression modules associated with the MAPT mutations


Investigator: Ronald DeMattos

Project Title: Analyses of Full-Length, Truncated, and Modified Aβ Species across the Alzheimer’s Disease Spectrum

Date: December 21, 2021 at 5:02 pm

Request ID: T1408

Aim 1: Quantify the multiple forms of deposited Aβ that arise throughout the disease cascade (from normal through moderate stages of disease)

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Investigator: Manuel Sarasa

Project Title: The kinetics of the plasma Aβ biomarkers (Aβ42, Aβ40) in the Adult Children Study (ACS).

Date: December 21, 2021 at 5:02 pm

Request ID: T1402

Aim 1: To measure the levels of Aβ plasma markers (DA and RP for Aβ42, Aβ40) in the ACS cohort.

Aim 2: To identify which demographic (age, family history, ApoE genotype, sex, years of education) hematological (hematocrit, blood cell counts, if available in ACS database) and serum biochemical covariables (creatinine, homocysteine, urea, uric acid, hemoglobin, and serum total proteins, if available

Aim 3: Alternatively, these analysis could be performed at Araclon’s lab if a frozen serum sample would be provided) are significantly associated with the levels of Aβ plasma markers in the ACS cohort. Those statistical significant correlates should be included as potential confounding factors in the multi

Aim 4: To describe the progression of plasma Aβ biomarkers over time in each subject and the variation in the trajectories between subjects in a model adjusted for the relevant confounding factors.


Investigator: Yueming Li

Project Title: regulation and function of γ-secretase

Date: December 21, 2021 at 5:02 pm

Request ID: T1324

Aim 1: Determine the function of g-secretase in Sporadic Alzheimer disease

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Investigator: Langford

Project Title: importance of PINCH protein levels in CSF in AD

Date: December 21, 2021 at 5:02 pm

Request ID: T1323

Aim 1: do levels of PINCH protein in CSF correspond to neurocognitive status in AD

Aim 2: do levels of PINCH protein in CSF correspond to immune system functional status

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Investigator: Marc I. Diamond

Project Title: Characterizing tau aggregate species via structural mapping

Date: December 21, 2021 at 5:02 pm

Request ID: T1322

Aim 1: Cluster tauopathy patients in clinically meaningful ways via structural mapping of tau aggregates.

Aim 2: Determine if disease progression rates are influenced by tau aggregate protein structure.

Aim 3: Determine if tau aggregate protein structure is consistent between brain regions.

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Investigator: Joel Kramer

Project Title: Disease-free Aging Control Group for Tau Consortium Genetic Studies

Date: December 21, 2021 at 5:02 pm

Request ID: T1321

Aim 1: provide DNA from functionally normal controls without family history of neurodegenerative disease

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Investigator: David Holtzman

Project Title: : Synuclein seed detection in brains of patients with synucleinopathies

Date: December 21, 2021 at 5:02 pm

Request ID: T1319

Aim 1: Detect synuclein seeds in brain tissue of different synucleinopathies

Aim 2: Determine if there are unique conformers of synuclein in the different synucleinopathies

Aim 3: Determine if there is regional specificity of synuclein conformers

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Investigator: Makoto Ishii

Project Title: Altered leptin signaling in Alzheimer’s disease

Date: December 21, 2021 at 5:02 pm

Request ID: T1318

Aim 1: To determine if alterations in leptin signaling are found in earliest stages of Alzheimer’s disease

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Investigator: Sidney Strcikland

Project Title: Identification of a Plasmin-Resistant Fibrin Fragment as a Biomarker for Alzheimer’s disease

Date: December 21, 2021 at 5:02 pm

Request ID: T1320

Aim 1: Determine a level of plasmin-resistant fibrin fragment in CSF from AD patients

Aim 2: The relationship between a level of Fibrin Fragment and pathological characteristics of AD patients

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