Reference : Rare ABCA7 variants in 2 German families with Alzheimer disease
Scientific journals : Article
Life sciences : Genetics & genetic processes
Human health sciences : Neurology
Systems Biomedicine
http://hdl.handle.net/10993/35308
Rare ABCA7 variants in 2 German families with Alzheimer disease
English
May, Patrick mailto [University of Luxembourg > Luxembourg Centre for Systems Biomedicine (LCSB) > >]
Pichler, Sabrina []
Hartl, Daniela []
Bobbili, Dheeraj Reddy mailto [University of Luxembourg > Luxembourg Centre for Systems Biomedicine (LCSB) > >]
Mayhaus, Manuel []
Spaniol, Christian []
Kurz, Alexander []
Balling, Rudi mailto [University of Luxembourg > Luxembourg Centre for Systems Biomedicine (LCSB) > >]
Schneider, Jochen mailto [University of Luxembourg > Luxembourg Centre for Systems Biomedicine (LCSB) > >]
Riemenschneider, Matthias []
1-Apr-2018
Neurology Genetics
Wolters Kluwer
4
2
Yes
International
2376-7839
2376-7839
Hagerstown
United States
[en] Alzheimer ; ABCA7 ; Late-onset
[en] Objective The aim of this study was to identify variants associated with familial late-onset Alzheimer disease (AD) using whole-genome sequencing.
Methods Several families with an autosomal dominant inheritance pattern of AD were analyzed by whole-genome sequencing. Variants were prioritized for rare, likely pathogenic variants in genes already known to be associated with AD and confirmed by Sanger sequencing using standard protocols.
Results We identified 2 rare ABCA7 variants (rs143718918 and rs538591288) with varying penetrance in 2 independent German AD families, respectively. The single nucleotide variant (SNV) rs143718918 causes a missense mutation, and the deletion rs538591288 causes a frameshift mutation of ABCA7. Both variants have previously been reported in larger cohorts but with incomplete segregation information. ABCA7 is one of more than 20 AD risk loci that have so far been identified by genome-wide association studies, and both common and rare variants of ABCA7 have previously been described in different populations with higher frequencies in AD cases than in controls and varying penetrance. Furthermore, ABCA7 is known to be involved in several AD-relevant pathways.
Conclusions We conclude that both SNVs might contribute to the development of AD in the examined family members. Together with previous findings, our data confirm ABCA7 as one of the most relevant AD risk genes.
Luxembourg Centre for Systems Biomedicine (LCSB): Bioinformatics Core (R. Schneider Group) ; Luxembourg Centre for Systems Biomedicine (LCSB): Experimental Neurobiology (Balling Group) ; Luxembourg Centre for Systems Biomedicine (LCSB): Medical Translational Research (J. Schneider Group) ; University of Luxembourg: High Performance Computing - ULHPC
Researchers
http://hdl.handle.net/10993/35308
http://ng.neurology.org/content/4/2/e224
FnR ; FNR7490270 > Rudi Balling > COURAGE-PD > COmprehensive Unbiased Risk factor Assessment for Genetics and Environment in Parkinsonā€˜s Disease > 01/03/2014 > 28/02/2017 > 2013

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