Browsing by Author "Billingsley, Kimberley"

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    Genome-wide structural variant analysis identifies risk loci for non-Alzheimer's dementias
    (Elsevier, 2023-05-04) Kaivola, Karri; Chia, Ruth; Ding, Jinhui; Rasheed, Memoona; Fujita, Masashi; Menon, Vilas; Walton, Ronald L.; Collins, Ryan L.; Billingsley, Kimberley; Brand, Harrison; Talkowski, Michael; Zhao, Xuefang; Dewan, Ramita; Stark, Ali; Ray, Anindita; Solaiman, Sultana; Alvarez Jerez, Pilar; Malik, Laksh; Dawson, Ted M.; Rosenthal, Liana S.; Albert, Marilyn S.; Pletnikova, Olga; Troncoso, Juan C.; Masellis, Mario; Keith, Julia; Black, Sandra E.; Ferrucci, Luigi; Resnick, Susan M.; Tanaka, Toshiko; American Genome Center; International LBD Genomics Consortium; International ALS/FTD Consortium; PROSPECT Consortium; Topol, Eric; Torkamani, Ali; Tienari, Pentti; Foroud, Tatiana M.; Ghetti, Bernardino; Landers, John E.; Ryten, Mina; Morris, Huw R.; Hardy, John A.; Mazzini, Letizia; D'Alfonso, Sandra; Moglia, Cristina; Calvo, Andrea; Serrano, Geidy E.; Beach, Thomas G.; Ferman, Tanis; Graff-Radford, Neill R.; Boeve, Bradley F.; Wszolek, Zbigniew K.; Dickson, Dennis W.; Chiò, Adriano; Bennett, David A.; De Jager, Philip L.; Ross, Owen A.; Dalgard, Clifton L.; Gibbs, J. Raphael; Traynor, Bryan J.; Scholz, Sonja W.; Medical and Molecular Genetics, School of Medicine
    We characterized the role of structural variants, a largely unexplored type of genetic variation, in two non-Alzheimer's dementias, namely Lewy body dementia (LBD) and frontotemporal dementia (FTD)/amyotrophic lateral sclerosis (ALS). To do this, we applied an advanced structural variant calling pipeline (GATK-SV) to short-read whole-genome sequence data from 5,213 European-ancestry cases and 4,132 controls. We discovered, replicated, and validated a deletion in TPCN1 as a novel risk locus for LBD and detected the known structural variants at the C9orf72 and MAPT loci as associated with FTD/ALS. We also identified rare pathogenic structural variants in both LBD and FTD/ALS. Finally, we assembled a catalog of structural variants that can be mined for new insights into the pathogenesis of these understudied forms of dementia.