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Title: Effect of APOE and CHRNA7 Genotypes on the Cognitive Response to Cholinesterase Inhibitor Treatment at Different Stages of Alzheimer's Disease
Authors: Sampaio Braga, Ianna Lacerda [UNIFESP]
Silva, Patricia Natalia [UNIFESP]
Furuya, Tatiane Katsue [UNIFESP]
Santos, Leonardo Caires [UNIFESP]
Pires, Belisa Caldana [UNIFESP]
Mazzotti, Diego Robles [UNIFESP]
Bertolucci, Paulo Henrique [UNIFESP]
Cendoroglo, Maysa Seabra [UNIFESP]
Smith, Marilia Cardoso [UNIFESP]
Universidade Federal de São Paulo (UNIFESP)
Keywords: pharmacogenomics
Alzheimer's disease
cholinesterase inhibitor
Issue Date: 1-Mar-2015
Publisher: Sage Publications Inc
Citation: American Journal of Alzheimers Disease and Other Dementias. Thousand Oaks: Sage Publications Inc, v. 30, n. 2, p. 139-144, 2015.
Abstract: The loss of cholinergic transmission is considered to be an important cause of Alzheimer's disease (AD). Treatment with acetyl cholinesterase inhibitors (ChEIs) shows benefits; however, great heterogeneity has been observed in patient responses. We evaluated apolipoprotein E (APOE) and 7 nicotinic receptor (CHRNA7) single-nucleotide polymorphisms (SNPs) and associated these SNPs with pharmacological responses to ChEIs in a Brazilian population with AD. We studied 177 outpatients using ChEIs, and they were classified as responders and nonresponders according to variation in Mini-Mental State Examination (MMSE) status. the analysis of APOE genotypes showed that patients with the 4 allele had a worse response than those without the 4 allele. We observed an association between the CHRNA7 T allele and a better response to treatment with ChEIs in patients with mild AD (MMSE 20). the SNP rs6494223 of CHRNA7 as well as APOE4 could be useful for understanding the response to ChEI treatment in patients with AD.
ISSN: 1533-3175
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