Genome sequencing analysis identifies new loci associated with Lewy body dementia and provides insights into its genetic architecture.
Chia R., Sabir MS., Bandres-Ciga S., Saez-Atienzar S., Reynolds RH., Gustavsson E., Walton RL., Ahmed S., Viollet C., Ding J., Makarious MB., Diez-Fairen M., Portley MK., Shah Z., Abramzon Y., Hernandez DG., Blauwendraat C., Stone DJ., Eicher J., Parkkinen L., Ansorge O., Clark L., Honig LS., Marder K., Lemstra A., St George-Hyslop P., Londos E., Morgan K., Lashley T., Warner TT., Jaunmuktane Z., Galasko D., Santana I., Tienari PJ., Myllykangas L., Oinas M., Cairns NJ., Morris JC., Halliday GM., Van Deerlin VM., Trojanowski JQ., Grassano M., Calvo A., Mora G., Canosa A., Floris G., Bohannan RC., Brett F., Gan-Or Z., Geiger JT., Moore A., May P., Krüger R., Goldstein DS., Lopez G., Tayebi N., Sidransky E., American Genome Center None., Norcliffe-Kaufmann L., Palma J-A., Kaufmann H., Shakkottai VG., Perkins M., Newell KL., Gasser T., Schulte C., Landi F., Salvi E., Cusi D., Masliah E., Kim RC., Caraway CA., Monuki ES., Brunetti M., Dawson TM., Rosenthal LS., Albert MS., Pletnikova O., Troncoso JC., Flanagan ME., Mao Q., Bigio EH., Rodríguez-Rodríguez E., Infante J., Lage C., González-Aramburu I., Sanchez-Juan P., Ghetti B., Keith J., Black SE., Masellis M., Rogaeva E., Duyckaerts C., Brice A., Lesage S., Xiromerisiou G., Barrett MJ., Tilley BS., Gentleman S., Logroscino G., Serrano GE., Beach TG., McKeith IG., Thomas AJ., Attems J., Morris CM., Palmer L., Love S., Troakes C., Al-Sarraj S., Hodges AK., Aarsland D., Klein G., Kaiser SM., Woltjer R., Pastor P., Bekris LM., Leverenz JB., Besser LM., Kuzma A., Renton AE., Goate A., Bennett DA., Scherzer CR., Morris HR., Ferrari R., Albani D., Pickering-Brown S., Faber K., Kukull WA., Morenas-Rodriguez E., Lleó A., Fortea J., Alcolea D., Clarimon J., Nalls MA., Ferrucci L., Resnick SM., Tanaka T., Foroud TM., Graff-Radford NR., Wszolek ZK., Ferman T., Boeve BF., Hardy JA., Topol EJ., Torkamani A., Singleton AB., Ryten M., Dickson DW., Chiò A., Ross OA., Gibbs JR., Dalgard CL., Traynor BJ., Scholz SW.
The genetic basis of Lewy body dementia (LBD) is not well understood. Here, we performed whole-genome sequencing in large cohorts of LBD cases and neurologically healthy controls to study the genetic architecture of this understudied form of dementia, and to generate a resource for the scientific community. Genome-wide association analysis identified five independent risk loci, whereas genome-wide gene-aggregation tests implicated mutations in the gene GBA. Genetic risk scores demonstrate that LBD shares risk profiles and pathways with Alzheimer's disease and Parkinson's disease, providing a deeper molecular understanding of the complex genetic architecture of this age-related neurodegenerative condition.