Browsing by Author "Koesterer, Ryan"

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    Genome-wide association study of rate of cognitive decline in Alzheimer’s Disease patients identifies novel genes and pathways
    (Wiley, 2020-08) Sherva, Richard; Gross, Alden; Mukherjee, Shubhabrata; Koesterer, Ryan; Amouyel, Philippe; Philippe, Celine; Dufouil, Carole; Bennett, David A.; Chibnik, Lori; Cruchaga, Carlos; del-Aguila, Jorge; Farrer, Lindsay A.; Mayeux, Richard; Munsie, Leanne; Winslow, Ashley; Ashley, Stephen; Saykin, Andrew J.; Kauwe, John S.K.; Crane, Paul K.; Green, Robert C.; Radiology and Imaging Sciences, School of Medicine
    Introduction: Variability exists in the disease trajectories of Alzheimer's disease (AD) patients. We performed a genome-wide association study to examine rate of cognitive decline (ROD) in patients with AD. Methods: We tested for interactions between genetic variants and time since diagnosis to predict the ROD of a composite cognitive score in 3946 AD cases and performed pathway analysis on the top genes. Results: Suggestive associations (P < 1.0 × 10-6 ) were observed on chromosome 15 in DNA polymerase-γ (rs3176205, P = 1.11 × 10-7 ), chromosome 7 (rs60465337,P = 4.06 × 10-7 ) in contactin-associated protein-2, in RP11-384F7.1 on chromosome 3 (rs28853947, P = 5.93 × 10-7 ), family with sequence similarity 214 member-A on chromosome 15 (rs2899492, P = 5.94 × 10-7 ), and intergenic regions on chromosomes 16 (rs4949142, P = 4.02 × 10-7 ) and 4 (rs1304013, P = 7.73 × 10-7 ). Significant pathways involving neuronal development and function, apoptosis, memory, and inflammation were identified. Discussion: Pathways related to AD, intelligence, and neurological function determine AD progression, while previously identified AD risk variants, including the apolipoprotein (APOE) ε4 and ε2 variants, do not have a major impact.