Copy Number Variation Identification on 3,800 Alzheimer’s Disease Whole Genome Sequencing Data from the Alzheimer’s Disease Sequencing Project

Alzheimer’s Disease (AD) is a progressive neurologic disease and the most common form of dementia. While the causes of AD are not completely understood, genetics plays a key role in the etiology of AD, and thus finding genetic factors holds the potential to uncover novel AD mechanisms. For this stud...

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Published inFrontiers in genetics Vol. 12; p. 752390
Main Authors Lee, Wan-Ping, Tucci, Albert A., Conery, Mitchell, Leung, Yuk Yee, Kuzma, Amanda B., Valladares, Otto, Chou, Yi-Fan, Lu, Wenbin, Wang, Li-San, Schellenberg, Gerard D., Tzeng, Jung-Ying
Format Journal Article
LanguageEnglish
Published Switzerland Frontiers Media S.A 04.11.2021
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ISSN1664-8021
1664-8021
DOI10.3389/fgene.2021.752390

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Abstract Alzheimer’s Disease (AD) is a progressive neurologic disease and the most common form of dementia. While the causes of AD are not completely understood, genetics plays a key role in the etiology of AD, and thus finding genetic factors holds the potential to uncover novel AD mechanisms. For this study, we focus on copy number variation (CNV) detection and burden analysis. Leveraging whole-genome sequence (WGS) data released by Alzheimer’s Disease Sequencing Project (ADSP), we developed a scalable bioinformatics pipeline to identify CNVs. This pipeline was applied to 1,737 AD cases and 2,063 cognitively normal controls. As a result, we observed 237,306 and 42,767 deletions and duplications, respectively, with an average of 2,255 deletions and 1,820 duplications per subject. The burden tests show that Non-Hispanic-White cases on average have 16 more duplications than controls do ( p -value 2e-6), and Hispanic cases have larger deletions than controls do ( p -value 6.8e-5).
AbstractList Alzheimer's Disease (AD) is a progressive neurologic disease and the most common form of dementia. While the causes of AD are not completely understood, genetics plays a key role in the etiology of AD, and thus finding genetic factors holds the potential to uncover novel AD mechanisms. For this study, we focus on copy number variation (CNV) detection and burden analysis. Leveraging whole-genome sequence (WGS) data released by Alzheimer's Disease Sequencing Project (ADSP), we developed a scalable bioinformatics pipeline to identify CNVs. This pipeline was applied to 1,737 AD cases and 2,063 cognitively normal controls. As a result, we observed 237,306 and 42,767 deletions and duplications, respectively, with an average of 2,255 deletions and 1,820 duplications per subject. The burden tests show that Non-Hispanic-White cases on average have 16 more duplications than controls do ( -value 2e-6), and Hispanic cases have larger deletions than controls do ( -value 6.8e-5).
Alzheimer's Disease (AD) is a progressive neurologic disease and the most common form of dementia. While the causes of AD are not completely understood, genetics plays a key role in the etiology of AD, and thus finding genetic factors holds the potential to uncover novel AD mechanisms. For this study, we focus on copy number variation (CNV) detection and burden analysis. Leveraging whole-genome sequence (WGS) data released by Alzheimer's Disease Sequencing Project (ADSP), we developed a scalable bioinformatics pipeline to identify CNVs. This pipeline was applied to 1,737 AD cases and 2,063 cognitively normal controls. As a result, we observed 237,306 and 42,767 deletions and duplications, respectively, with an average of 2,255 deletions and 1,820 duplications per subject. The burden tests show that Non-Hispanic-White cases on average have 16 more duplications than controls do (p-value 2e-6), and Hispanic cases have larger deletions than controls do (p-value 6.8e-5).Alzheimer's Disease (AD) is a progressive neurologic disease and the most common form of dementia. While the causes of AD are not completely understood, genetics plays a key role in the etiology of AD, and thus finding genetic factors holds the potential to uncover novel AD mechanisms. For this study, we focus on copy number variation (CNV) detection and burden analysis. Leveraging whole-genome sequence (WGS) data released by Alzheimer's Disease Sequencing Project (ADSP), we developed a scalable bioinformatics pipeline to identify CNVs. This pipeline was applied to 1,737 AD cases and 2,063 cognitively normal controls. As a result, we observed 237,306 and 42,767 deletions and duplications, respectively, with an average of 2,255 deletions and 1,820 duplications per subject. The burden tests show that Non-Hispanic-White cases on average have 16 more duplications than controls do (p-value 2e-6), and Hispanic cases have larger deletions than controls do (p-value 6.8e-5).
Alzheimer’s Disease (AD) is a progressive neurologic disease and the most common form of dementia. While the causes of AD are not completely understood, genetics plays a key role in the etiology of AD, and thus finding genetic factors holds the potential to uncover novel AD mechanisms. For this study, we focus on copy number variation (CNV) detection and burden analysis. Leveraging whole-genome sequence (WGS) data released by Alzheimer’s Disease Sequencing Project (ADSP), we developed a scalable bioinformatics pipeline to identify CNVs. This pipeline was applied to 1,737 AD cases and 2,063 cognitively normal controls. As a result, we observed 237,306 and 42,767 deletions and duplications, respectively, with an average of 2,255 deletions and 1,820 duplications per subject. The burden tests show that Non-Hispanic-White cases on average have 16 more duplications than controls do ( p -value 2e-6), and Hispanic cases have larger deletions than controls do ( p -value 6.8e-5).
Alzheimer’s Disease (AD) is a progressive neurologic disease and the most common form of dementia. While the causes of AD are not completely understood, genetics plays a key role in the etiology of AD, and thus finding genetic factors holds the potential to uncover novel AD mechanisms. For this study, we focus on copy number variation (CNV) detection and burden analysis. Leveraging whole-genome sequence (WGS) data released by Alzheimer’s Disease Sequencing Project (ADSP), we developed a scalable bioinformatics pipeline to identify CNVs. This pipeline was applied to 1,737 AD cases and 2,063 cognitively normal controls. As a result, we observed 237,306 and 42,767 deletions and duplications, respectively, with an average of 2,255 deletions and 1,820 duplications per subject. The burden tests show that Non-Hispanic-White cases on average have 16 more duplications than controls do (p-value 2e-6), and Hispanic cases have larger deletions than controls do (p-value 6.8e-5).
Author Lee, Wan-Ping
Wang, Li-San
Schellenberg, Gerard D.
Tzeng, Jung-Ying
Lu, Wenbin
Tucci, Albert A.
Kuzma, Amanda B.
Leung, Yuk Yee
Conery, Mitchell
Chou, Yi-Fan
Valladares, Otto
AuthorAffiliation 4 Bioinformatics Research Center, North Carolina State University, Raleigh , NC , United States
2 Institute for Biomedical Informatics, Perelman School of Medicine, University of Pennsylvania, Philadelphia , PA , United States
6 Graduate Group in Genomics and Computational Biology, Perelman School of Medicine, University of Pennsylvania, Philadelphia , PA , United States
5 Division of Human Genetics, Children’s Hospital of Philadelphia, Philadelphia , PA , United States
7 Department of Statistics, North Carolina State University, Raleigh , NC , United States
1 Penn Neurodegeneration Genomics Center, Department of Pathology and Laboratory Medicine, Perelman School of Medicine, University of Pennsylvania, Philadelphia , PA , United States
3 Department of Pathology and Laboratory Medicine, Perelman School of Medicine, University of Pennsylvania, Philadelphia , PA , United States
AuthorAffiliation_xml – name: 2 Institute for Biomedical Informatics, Perelman School of Medicine, University of Pennsylvania, Philadelphia , PA , United States
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– name: 3 Department of Pathology and Laboratory Medicine, Perelman School of Medicine, University of Pennsylvania, Philadelphia , PA , United States
– name: 1 Penn Neurodegeneration Genomics Center, Department of Pathology and Laboratory Medicine, Perelman School of Medicine, University of Pennsylvania, Philadelphia , PA , United States
– name: 7 Department of Statistics, North Carolina State University, Raleigh , NC , United States
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CitedBy_id crossref_primary_10_1038_s41598_023_48993_7
crossref_primary_10_1186_s13073_025_01427_7
crossref_primary_10_3389_fnagi_2022_1073905
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Copyright Copyright © 2021 Lee, Tucci, Conery, Leung, Kuzma, Valladares, Chou, Lu, Wang, Schellenberg and Tzeng.
Copyright © 2021 Lee, Tucci, Conery, Leung, Kuzma, Valladares, Chou, Lu, Wang, Schellenberg and Tzeng. 2021 Lee, Tucci, Conery, Leung, Kuzma, Valladares, Chou, Lu, Wang, Schellenberg and Tzeng
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Keywords whole-genome sequence (WGS)
CNV association test
NGS—next generation sequencing
copy number variation—CNV
Alzheiemer’s disease
Language English
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Edited by: Claudia Gonzaga-Jauregui, Universidad Nacional Autónoma de México, Mexico
This article was submitted to Human and Medical Genomics, a section of the journal Frontiers in Genetics
These authors have contributed equally to this work and share first authorship
Reviewed by: Audrey Qiuyan Fu, University of Idaho, United States
Nancy Monroy-Jaramillo, National Institute of Neurology and Neurosurgery, Mexico
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Snippet Alzheimer’s Disease (AD) is a progressive neurologic disease and the most common form of dementia. While the causes of AD are not completely understood,...
Alzheimer's Disease (AD) is a progressive neurologic disease and the most common form of dementia. While the causes of AD are not completely understood,...
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SubjectTerms Alzheiemer’s disease
CNV association test
copy number variation—CNV
Genetics
NGS—next generation sequencing
whole-genome sequence (WGS)
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Title Copy Number Variation Identification on 3,800 Alzheimer’s Disease Whole Genome Sequencing Data from the Alzheimer’s Disease Sequencing Project
URI https://www.ncbi.nlm.nih.gov/pubmed/34804120
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https://pubmed.ncbi.nlm.nih.gov/PMC8599981
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Volume 12
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