RT Journal Article T1 Genetic risk factors for the posterior cortical atrophy variant of Alzheimer's disease. A1 Schott, Jonathan M A1 Crutch, Sebastian J A1 Carrasquillo, Minerva M A1 Uphill, James A1 Shakespeare, Tim J A1 Ryan, Natalie S A1 Yong, Keir X A1 Lehmann, Manja A1 Ertekin-Taner, Nilufer A1 Graff-Radford, Neill R A1 Boeve, Bradley F A1 Murray, Melissa E A1 Khan, Qurat Ul Ain A1 Petersen, Ronald C A1 Dickson, Dennis W A1 Knopman, David S A1 Rabinovici, Gil D A1 Miller, Bruce L A1 González, Aida Suárez A1 Gil-Néciga, Eulogio A1 Snowden, Julie S A1 Harris, Jenny A1 Pickering-Brown, Stuart M A1 Louwersheimer, Eva A1 van der Flier, Wiesje M A1 Scheltens, Philip A1 Pijnenburg, Yolande A A1 Galasko, Douglas A1 Sarazin, Marie A1 Dubois, Bruno A1 Magnin, Eloi A1 Galimberti, Daniela A1 Scarpini, Elio A1 Cappa, Stefano F A1 Hodges, John R A1 Halliday, Glenda M A1 Bartley, Lauren A1 Carrillo, Maria C A1 Bras, Jose T A1 Hardy, John A1 Rossor, Martin N A1 Collinge, John A1 Fox, Nick C A1 Mead, Simon K1 APOE K1 Alzheimer's disease K1 GWAS K1 Genetics K1 Posterior cortical atrophy K1 Selective vulnerability AB The genetics underlying posterior cortical atrophy (PCA), typically a rare variant of Alzheimer's disease (AD), remain uncertain. We genotyped 302 PCA patients from 11 centers, calculated risk at 24 loci for AD/DLB and performed an exploratory genome-wide association study. We confirm that variation in/near APOE/TOMM40 (P = 6 × 10(-14)) alters PCA risk, but with smaller effect than for typical AD (PCA: odds ratio [OR] = 2.03, typical AD: OR = 2.83, P = .0007). We found evidence for risk in/near CR1 (P = 7 × 10(-4)), ABCA7 (P = .02) and BIN1 (P = .04). ORs at variants near INPP5D and NME8 did not overlap between PCA and typical AD. Exploratory genome-wide association studies confirmed APOE and identified three novel loci: rs76854344 near CNTNAP5 (P = 8 × 10(-10) OR = 1.9 [1.5-2.3]); rs72907046 near FAM46A (P = 1 × 10(-9) OR = 3.2 [2.1-4.9]); and rs2525776 near SEMA3C (P = 1 × 10(-8), OR = 3.3 [2.1-5.1]). We provide evidence for genetic risk factors specifically related to PCA. We identify three candidate loci that, if replicated, may provide insights into selective vulnerability and phenotypic diversity in AD. YR 2016 FD 2016-03-15 LK http://hdl.handle.net/10668/9929 UL http://hdl.handle.net/10668/9929 LA en DS RISalud RD Apr 8, 2025