ATP5H/KCTD2 locus is associated with Alzheimer's disease risk

M Boada, C Antunez, R Ramirez-Lorca, AL DeStefano, A Gonzalez-Perez, J Gayan, J Lopez-Arrieta, Arfan Ikram, I Hernandez, J Marin, JJ Galan, JC Bis, A Mauleon, M Rosende-Roca, C Moreno-Rey, V Gudnasson, FJ Moron, J Velasco, JM Carrasco, M AlegretA Espinosa, G Vinyes, A Lafuente, L Vargas, AL Fitzpatrick, LJ (Lenore) Launer, ME Saez, E Vazquez, JT Becker, OL Lopez, M Serrano-Rios, L Tarraga, Cornelia Duijn, LM Real, S Seshadri, A Ruiz

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Abstract

To identify loci associated with Alzheimer disease, we conducted a three-stage analysis using existing genome-wide association studies (GWAS) and genotyping in a new sample. In Stage I, all suggestive single-nucleotide polymorphisms (at P<0.001) in a previously reported GWAS of seven independent studies (8082 Alzheimer's disease (AD) cases; 12 040 controls) were selected, and in Stage II these were examined in an in silico analysis within the Cohorts for Heart and Aging Research in Genomic Epidemiology consortium GWAS (1367 cases and 12904 controls). Six novel signals reaching P<5 x 10(-6) were genotyped in an independent Stage III sample (the Fundacio ACE data set) of 2200 sporadic AD patients and 2301 controls. We identified a novel association with AD in the adenosine triphosphate (ATP) synthase, H + transporting, mitochondrial F0 (ATP5H)/Potassium channel tetramerization domain-containing protein 2 (KCTD2) locus, which reached genome-wide significance in the combined discovery and genotyping sample (rs11870474, odds ratio (OR)= 1.58, P= 2.6 X 10(-7) in discovery and OR 1.43, P= 0.004 in Fundacio ACE data set; combined OR= 1.53, P= 4.7 X 10(-9)). This ATP5H/KCTD2 locus has an important function in mitochondrial energy production and neuronal hyperpolarization during cellular stress conditions, such as hypoxia or glucose deprivation.
Original languageUndefined/Unknown
Pages (from-to)682-687
Number of pages6
JournalMolecular Psychiatry
Volume19
Issue number6
DOIs
Publication statusPublished - 2014

Research programs

  • EMC NIHES-01-64-01

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