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Parkinson Disease ×
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Table of contents
  1. 1. Clinical Trial
  2. 2. Routine Documentation
  3. 3. Registry/Cohort Study
  4. 4. Quality Assurance
  5. 5. Data Standard
  6. 6. Patient-Reported Outcome
  7. 7. Medical Specialty
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- 1/17/24 - 5 forms, 1 itemgroup, 3 items, 1 language
Itemgroup: pht004672
Principal Investigator: Mohammad Faghihi, MD, PhD, University of Miami, Miami, FL, USA MeSH: Parkinson Disease https://www.ncbi.nlm.nih.gov/projects/gap/cgi-bin/study.cgi?study_id=phs000901 There is a clear need to develop biomarkers for Parkinson disease (PD) diagnosis and monitoring disease progression. In this study we evaluated cerebrospinal fluid (CSF) proteins, which are known to be critically involved in PD or identified in our preliminary profiling studies, aptamers, and RNAs as potential PD biomarkers. Access to subjects for this study was via the Pacific Northwest Udall Center (PANUC) and the Alzheimer's Disease Research Center (ADRC) at the University of Washington and Oregon Health and Sciences University (OHSU). Using CSF samples from 30 well-characterized patients with PD and 30 age-, sex-matched healthy controls, we prepared RNA seq libraries and performed deep sequencing of all RNA species, including small and long RNA, mRNAs, noncoding RNAs and differentially spliced transcripts. We then tried several methods for RNAseq data analysis to optimize our analysis pipeline. We identified a total of 3381 transcripts corresponding to 182 long intergenic RNAs (LincRNAs), 11 microRNAs (miRNAs), 2861 protein-coding transcripts, 200 pseudogenes and 127 antisense RNAs; some of them were differentially expressed between PD and control groups. Selected differentially expressed RNAs have been validated in the same set of CSF samples using real-time PCR (RT-PCR). Further validations in independent, larger cohorts of samples are still ongoing. Our results obtained so far suggested that CSF proteins and RNAs could be used as good indexes for PD diagnosis and disease severity/progression. This study is a part of the NIDDS-funded Parkinson's Disease Biomarkers Program (PDBP).

pht004673.v1.p1

1 itemgroup 5 items

pht004674.v1.p1

1 itemgroup 3 items

pht004675.v1.p1

1 itemgroup 6 items

Eligibility

1 itemgroup 2 items
- 9/19/23 - 6 forms, 1 itemgroup, 1 item, 1 language
Itemgroup: IG.elig
Principal Investigator: Tatiana Foroud, PhD, Indiana University, IN, USA MeSH: Parkinson Disease https://www.ncbi.nlm.nih.gov/projects/gap/cgi-bin/study.cgi?study_id=phs001004 A portion of the sample includes multiplex PD families recruited as part of a previously funded study (R01NS037167; PI: Tatiana Foroud). Families were ascertained initially through a living affected sibling pair. Subsequently, ascertainment was loosened to include PD probands having a positive family history of PD in a first degree relative, who was not required to be part of the study. All individuals completed an in-person evaluation at one of the 65 Parkinson Study Group sites participating in this study. Individuals completed a detailed evaluation that included the Unified Parkinson Disease Rating Scale (UPDRS), Mini-Mental State Examination (MMSE), Geriatric Depression Scale (GDS) and a diagnostic checklist that implemented the UK PD Brain Bank inclusion and exclusion criteria. An autopsy program was established in this study and brain tissue for confirmation of diagnosis and further experimental study are available from over 100 participants. Autopsy confirmation of the PD diagnosis was nearly 100% for those who met UK PD Brain Bank criteria. In addition, because this was a cross sectional study and family members were often seen very early in disease course, among those who did not meet UK PD Brain Bank criteria but had a subsequent autopsy, a significant subset (1/3) had autopsy confirmation of PD. The second source of samples is from the NINDS Human Genetics DNA and Cell Line Repository located at the Coriell Institute. Currently DNA from 4,509 PD patients is available from the Coriell Institute. We restricted the selected sample to include only Caucasians and ensured there was no overlap with samples contributed by the PROGENI Study.

pht010439.v1.p1

1 itemgroup 5 items

pht010440.v1.p1

1 itemgroup 5 items

pht010441.v1.p1

1 itemgroup 3 items

pht010442.v1.p1

1 itemgroup 37 items

pht010443.v1.p1

1 itemgroup 3 items
- 8/22/22 - 3 forms, 1 itemgroup, 2 items, 1 language
Itemgroup: IG.elig
Principal Investigator: Demetrius M. Maraganore, Mayo Clinic, Rochester, MN, USA MeSH: Parkinson Disease https://www.ncbi.nlm.nih.gov/projects/gap/cgi-bin/study.cgi?study_id=phs000048 We performed a two-tiered, whole-genome association study of Parkinson disease (PD). For tier 1, we individually genotyped 198,345 uniformly spaced and informative single-nucleotide polymorphisms (SNPs) in 443 sibling pairs discordant for PD. For tier 2a, we individually genotyped 1,793 PD-associated SNPs (P.01 in tier 1) and 300 genomic control SNPs in 332 matched case-unrelated control pairs. We identified 11 SNPs that were associated with PD (P.01) in both tier 1 and tier 2 samples and had the same direction of effect. For these SNPs, we combined data from the case-unaffected sibling pair (tier 1) and case-unrelated control pair (tier 2) samples and employed a liberalization of the sibling transmission/disequilibrium test to calculate odds ratios, 95% confidence intervals, and P values. A SNP within the semaphorin 5A gene (SEMA5A) had the lowest combined P value (P=7.62E-6). The protein encoded by this gene plays an important role in neurogenesis and in neuronal apoptosis, which is consistent with existing hypotheses regarding PD pathogenesis. A second SNP tagged the PARK11 late-onset PD susceptibility locus (P=1.70E-5). In tier 2b, we also selected for genotyping additional SNPs that were borderline significant (P.05) in tier 1 but that tested a priori biological and genetic hypotheses regarding susceptibility to PD (n=941 SNPs). In analysis of the combined tier 1 and tier 2b data, the two SNPs with the lowest P values (P=9.07E-6; P=2.96E-5) tagged the PARK10 late-onset PD susceptibility locus. Independent replication across populations will clarify the role of the genomic loci tagged by these SNPs in conferring PD susceptibility. Note: The following instruments were used: 1)clinical assessments form and manual; 2) sibling screening form and manual; 3) unrelated control screening and manual; and 4) risk factors questionnaire and manual. All cases underwent #1, as did sibling controls screening positive (see below). Unrelated controls were not examined. All siblings underwent #2. All unrelated controls underwent #3. All subjects (cases, sibling controls, and unrelated controls) underwent #4. Any publications using the data are to cite the original American Journal of Human Genetics article (Maraganore et al., 2005). Investigators using the data collection instruments are to acknowledge Drs. Maraganore and Rocca, and cite grants ES-10751 and NS-33978.

pht000184.v1.p1

1 itemgroup 6 items

pht000071.v1.p1

1 itemgroup 6 items
- 6/3/22 - 4 forms, 1 itemgroup, 5 items, 1 language
Itemgroup: pht000801.v2.p2
https://www.ncbi.nlm.nih.gov/projects/gap/cgi-bin/study.cgi?study_id=phs000089.v3.p2 Epidemiological studies have estimated a cumulative prevalence of PD of greater than 1 per thousand. When prevalence is limited to senior populations, this proportion increases nearly 10-fold. The estimated genetic risk ratio for PD is approximately 1.7 (70% increased risk for PD if a sibling has PD) for all ages, and increases over 7-fold for those under age 66 years. The role for genes contributing to the risk of PD is therefore significant. This study utilized the well characterized collection of North American Caucasians with Parkinson's disease, and neurologically normal controls from the sample population which are banked in the National Institute of Neurological Disorders and Stroke (NINDS Repository) collection for a first stage whole genome analysis. Genome-wide, single nucleotide polymorphism (SNP) genotyping of these publicly available samples was originally done in 267 Parkinson's disease patients and 270 controls, and this has been extended to include genome wide genotyping in 939 Parkinson's disease cases and 802 controls. The NINDS repository was established in 10-2001 towards the goal of developing standardized, broadly useful diagnostic and other clinical data and a collection of DNA and cell line samples to further advances in gene discovery of neurological disorders. All samples, phenotypic, and genotypic data are available to the research community including to academics and industry scientists. In addition, well characterized neurologically normal control subjects are a part of the collection. This collection formed the basis of this first stage study by Fung et al., and the expanded study by Simon-Sanchez et al. The genotyping data was generated and provided by the laboratory of Dr. Andrew Singleton NIA, and Dr. John Hardy NIA (NIH Intramural, funding from NIA and NINDS). *Important links to apply for individual-level data* - Data Use Certification Requirements (DUC) - Apply here for controlled access to individual level data - Participant Protection Policy FAQ

pht000802.v2.p2

1 itemgroup 4 items

pht000177.v3.p2

1 itemgroup 65 items

pht000178.v3.p2

1 itemgroup 43 items

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