---
title: "Case Western Reserve University (CWRU) Rapid Decline"
id: "3823"
type: "cohort"
slug: "case-western-reserve-university-cwru-rapid-decline"
published_at: "2022-09-16T13:27:58+00:00"
modified_at: "2024-09-13T20:02:56+00:00"
url: "https://dss.niagads.org/cohorts/case-western-reserve-university-cwru-rapid-decline/"
markdown_url: "https://dss.niagads.org/cohorts/case-western-reserve-university-cwru-rapid-decline.md"
excerpt: "The Case Western Reserve University (CWRU) Rapid Decline Cohort (Cohen et al. 2015) represents patients with rapid decline. Subjects included in the Case Western Reserve Rapid Decline dataset include individuals who were initially suspected of having Creutzfelt-Jakob disease (CJD). The..."
taxonomy_cohort_categories:
  - "ADSP"
taxonomy_cohort_countries:
  - "United States of America"
---

## Description

The Case Western Reserve University (CWRU) Rapid Decline Cohort (Cohen et al. 2015) represents patients with rapid decline. Subjects included in the Case Western Reserve Rapid Decline dataset include individuals who were initially suspected of having Creutzfelt-Jakob disease (CJD). The Brains of these individuals were obtained by the National Prion Disease Pathology Surveillance Center (NPDPSC) for testing and confirmation of CJD. Samples are received from across the United States. After testing, these samples were determined not to have CJD, but to have pathology consistent with Alzheimer disease. The usual progression of CJD is quite rapid, so that the vast majority of these individuals progressed from onset to death in less than 3 years. This is an autopsy-based study designed to analyze post-mortem brain tissue. Medical records are obtained when available to help correlate brain behavior relationships.

Participants were classified as either Alzheimer’s disease or another dementia (ADRD; Lewy body Dementia, Frontotemporal dementia) based on description of the brain gross examination and neuropath microscopic description.

## Related Datasets

- [NG00067 – ADSP Umbrella](https://dss.niagads.org/datasets/ng00067/) This dataset includes sequencing data and harmonized phenotypes from cohorts sequenced by the Alzheimer’s Disease Sequencing Project and other AD and Related Dementia’s studies. Samples are processed using a common… [Learn more](https://dss.niagads.org/datasets/ng00067/)
- [NG00196- Genotyping short tandem repeats using the ADSP R4 cohort](https://dss.niagads.org/datasets/ng00196/) A two-step pipeline was used to first identify expanded short tandem repeats (STRs) in ADSP samples using ExpansionHunter Denovo and then genotype the identified STRs, along with additional polymorphic STRs… [Learn more](https://dss.niagads.org/datasets/ng00196/)

## Related Studies

- [sa000001 - Alzheimer’s Disease Sequencing Project (ADSP)](https://dss.niagads.org/studies/sa000001/) Background An initiative in response to the National Alzheimer’s Project Act (NAPA) has been working towards new biological insights and cures for Alzheimer’s Disease (AD) since its introduction by NIH… [Learn more](https://dss.niagads.org/studies/sa000001/)
- [sa000087 - Genotyping short tandem repeats using ADSP R4](https://dss.niagads.org/studies/sa000087/) Variation in tandem repeats (TRs), particularly large expansions of triplet repeats (e.g., polyCAG), is known to cause a number of late-onset neurological diseases. Due to their repetitive and degenerate nature,… [Learn more](https://dss.niagads.org/studies/sa000087/)

## Related Sample Sets

- [snd10031 - ADSP-FUS2 WGS](https://dss.niagads.org/sample-sets/snd10031/) The ADSP-FUS is a National Institute on Aging (NIA) initiative focused on identifying genetic risk and protective variants for late-onset Alzheimer Disease (LOAD). A concern in AD genetic studies is… [Learn more](https://dss.niagads.org/sample-sets/snd10031/)
- [snd10094 - ADSP-FUS3 WGS](https://dss.niagads.org/sample-sets/snd10094/) The ADSP-FUS is a National Institute on Aging (NIA) initiative focused on identifying genetic risk and protective variants for late-onset Alzheimer Disease (LOAD). A concern in AD genetic studies is… [Learn more](https://dss.niagads.org/sample-sets/snd10094/)
- [snd10147 - ADSP R4 Short Tandem Repeats (STRs)](https://dss.niagads.org/sample-sets/snd10147/) This dataset comprises short tandem repeat (STR) genotypes from 31,681 whole-genome sequencing (WGS) samples from the ADSP R4 data release. The STRs were genotyped using ExpansionHunter with a custom catalog… [Learn more](https://dss.niagads.org/sample-sets/snd10147/)

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