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Candidate gene association studies of genes involved in neuronal cholinergic transmission in Alzheimer's disease suggests choline acetyltransferase as a candidate deserving further study.

Cook, Lynnette J., Ho, Luk W., Wang, Lin, Terrenoire, Edith, Brayne, Carol, Evans, John Grimley, Xuereb, John, Cairns, Nigel J., Turic, Dragana, Hollingworth, Paul, Moore, Pamela J., Jehu, Luke, Archer, Nicola, Walter, Sarah, Foy, Catherine, Edmondson, Amanda J., Powell, John, Lovestone, Simon, Williams, Julie and Rubinsztein, David C. (2005) Candidate gene association studies of genes involved in neuronal cholinergic transmission in Alzheimer's disease suggests choline acetyltransferase as a candidate deserving further study. American journal of medical genetics. Part B, Neuropsychiatric genetics : the official publication of the International Society of Psychiatric Genetics, 132B (1). pp. 5-8. ISSN 1552-4841

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Abstract

Consistent deficits in the cholinergic system are evident in the brains of Alzheimer's Disease (AD) patients, including reductions in the activities of acetylcholine, acetylcholinesterase (AChE), and choline acetyltransferase (ChAT), increased butyrylcholinesterase (BChE) activity, and a selective loss of nicotinic acetylcholine receptors (nAChRs). Accordingly, we have analyzed polymorphisms in the genes encoding AChE, ChAT, BChE, and several of the subunit genes from neuronal nAChRs, for genetic associations with late-onset AD. A significant association for disease was detected for a non-coding polymorphism in ChAT (allele chi(1) (2) = 12.84, P = 0.0003; genotype chi(2) (2) = 11.89, P = 0.0026). Although replication analysis did not confirm the significance of this finding when the replication samples were considered alone (allele chi(1) (2) = 1.02, P = 0.32; genotype chi(2) (2) = 1.101, P = 0.58) the trends were in the correct direction and a significant association remained when the two sample sets were pooled (allele chi(1) (2) = 12.37, P = 0.0004; genotype chi(2) (2) = 11.61, P = 0.003). Previous studies have reported significant disease associations for both the K-variant of BChE and the coding ChAT rs3810950 polymorphism with AD. Replication analyses of these two loci failed to detect any significant association for disease in our case-control samples.

Item Type: Article
Subjects: R Medicine > R Medicine (General)
Schools: School of Human and Health Sciences
Related URLs:
Depositing User: Amanda Edmondson
Date Deposited: 15 Jun 2016 10:12
Last Modified: 11 Aug 2016 12:22
URI: http://eprints.hud.ac.uk/id/eprint/28542

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