Common variants at 12q14 and 12q24 are associated with hippocampal volume

Bis, J. C., Decarli, C., Smith, A. V., Van Der Lijn, F., Crivello, F., Fornage, M., Debette, S., Shulman, J. M., Schmidt, H., Srikanth, V., Schuur, M., Yu, L., Choi, S. H., Sigurdsson, S., Verhaaren, B. F. J., Destefano, A. L., Lambert, J. C., Jack, C. R., Struchalin, M., Stankovich, J., Ibrahim-Verbaas, C. A., Fleischman, D., Zijdenbos, A., Den Heijer, T., Mazoyer, B., Coker, L. H., Enzinger, C., Danoy, P., Amin, N., Arfanakis, K., Van Buchem, M. A., De Bruijn, R. F. A. G., Beiser, A., Dufouil, C., Huang, J., Cavalieri, M., Thomson, R., Niessen, W. J., Chibnik, L. B., Gislason, G. K., Hofman, A., Pikula, A., Amouyel, P., Freeman, K. B., Phan, T. G., Oostra, B. A., Stein, J. L., Medland, S. E., Vasquez, A. A., Hibar, D. P., Wright, M. J., Franke, B., Martin, N. G., Thompson, P. M., Nalls, M. A., Uitterlinden, A. G., Au, R., Elbaz, A., Beare, R. J., Van Swieten, J. C., Lopez, O. L., Harris, T. B., Chouraki, V., Breteler, M. M. B., De Jager, P. L., Becker, J. T., Vernooij, M. W., Knopman, D., Fazekas, F., Wolf, P. A., Van Der Lugt, A., Gudnason, V., Longstreth, W. T., Brown, M. A., Bennett, D. A., Van Duijn, C. M., Mosley, T. H., Schmidt, R., Tzourio, C., Launer, L. J., Ikram, M. A., & Seshadri, S. (2012) Common variants at 12q14 and 12q24 are associated with hippocampal volume. Nature Genetics, 44(5), pp. 545-551.

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Abstract

Aging is associated with reductions in hippocampal volume that are accelerated by Alzheimer's disease and vascular risk factors. Our genome-wide association study (GWAS) of dementia-free persons (n = 9,232) identified 46 SNPs at four loci with P values of <4.0 × 10 -7. In two additional samples (n = 2,318), associations were replicated at 12q14 within MSRB3-WIF1 (discovery and replication; rs17178006; P = 5.3 × 10 -11) and at 12q24 near HRK-FBXW8 (rs7294919; P = 2.9 × 10 -11). Remaining associations included one SNP at 2q24 within DPP4 (rs6741949; P = 2.9 × 10 -7) and nine SNPs at 9p33 within ASTN2 (rs7852872; P = 1.0 × 10 -7); along with the chromosome 12 associations, these loci were also associated with hippocampal volume (P < 0.05) in a third younger, more heterogeneous sample (n = 7,794). The SNP in ASTN2 also showed suggestive association with decline in cognition in a largely independent sample (n = 1,563). These associations implicate genes related to apoptosis (HRK), development (WIF1), oxidative stress (MSR3B), ubiquitination (FBXW8) and neuronal migration (ASTN2), as well as enzymes targeted by new diabetes medications (DPP4), indicating new genetic influences on hippocampal size and possibly the risk of cognitive decline and dementia.

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ID Code: 89348
Item Type: Journal Article
Refereed: Yes
Keywords: sitagliptin, apoptosis, article, brain size, cell migration, chromosome 12q, cognition, development, gene, genetic analysis, genetic association, genotype, hippocampus volume, human, major clinical study, nerve cell, oxidative stress, priority journal, single nucleotide polymorphism, ubiquitination, Alzheimer Disease, Chromosomes, Human, Pair 12, Cognition Disorders, Dementia, Genetic Loci, Genetic Markers, Genome-Wide Association Study, Hippocampus, Humans, Meta-Analysis as Topic, Polymorphism, Single Nucleotide
DOI: 10.1038/ng.2237
ISSN: 1061-4036
Divisions: Current > QUT Faculties and Divisions > Faculty of Health
Current > Institutes > Institute of Health and Biomedical Innovation
Copyright Owner: Copyright 2012 Nature America, Inc.
Deposited On: 20 Oct 2015 23:04
Last Modified: 23 Feb 2016 03:37

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