A comprehensive screening of copy number variability in dementia with Lewy bodies

Research output: Contribution to journalArticle

Abstract

The role of genetic variability in dementia with Lewy bodies (DLB) is now indisputable; however, data regarding copy number variation (CNV) in this disease has been lacking. Here, we used whole-genome genotyping of 1454 DLB cases and 1525 controls to assess copy number variability. We used 2 algorithms to confidently detect CNVs, performed a case-control association analysis, screened for candidate CNVs previously associated with DLB-related diseases, and performed a candidate gene approach to fully explore the data. We identified 5 CNV regions with a significant genome-wide association to DLB; 2 of these were only present in cases and absent from publicly available databases: one of the regions overlapped LAPTM4B, a known lysosomal protein, whereas the other overlapped the NME1 locus and SPAG9. We also identified DLB cases presenting rare CNVs in genes previously associated with DLB or related neurodegenerative diseases, such as SNCA, APP, and MAPT. To our knowledge, this is the first study reporting genome-wide CNVs in a large DLB cohort. These results provide preliminary evidence for the contribution of CNVs in DLB risk. © 2018

Details

Authors
Organisations
External organisations
  • University College London
  • University of Aveiro
Research areas and keywords

Subject classification (UKÄ) – MANDATORY

  • Medical Genetics
  • Neurosciences

Keywords

  • Copy number variants, Dementia with Lewy bodies, Genome-wide, MAPT, SNCA
Original languageEnglish
Pages (from-to)223.e1-223.e10
JournalNeurobiology of Aging
Volume75
Early online date2018 Oct 24
Publication statusPublished - 2019
Publication categoryResearch
Peer-reviewedYes

Bibliographic note

Export Date: 29 November 2018 Article in Press