Genetic interaction of PICALM and APOE is associated with brain atrophy and cognitive impairment in Alzheimer's disease

Morgen K, Ramirez A, Frölich L, Tost H, Plichta MM, Kölsch H, Rakebrandt F, Rienhoff O, Jessen F, Peters O, Jahn H, Luckhaus C, Hüll M, Gertz HJ, Schröder J, Hampel H, Teipel SJ, Pantel J, Heuser I, Wiltfang J, Rüther E, Kornhuber J, Maier W, Meyer-Lindenberg A (2014)


Publication Type: Journal article

Publication year: 2014

Journal

Publisher: Elsevier Masson

Book Volume: 10

Pages Range: S269-76

Journal Issue: 5 Suppl

DOI: 10.1016/j.jalz.2013.11.001

Abstract

Evidence has emerged indicating that the ?4 allele of APOE and PICALM interact in conferring risk of Alzheimer's disease (AD). The biologic basis of this interaction is unclear, but it is likely to have phenotypic relevance and contribute to the structural and clinical heterogeneity of AD.The aim of this study was to investigate interaction effects of the APOE ?4 allele and the alleles at the single-nucleotide polymorphism rs3851179 located in the PICALM locus. We analyzed brain volumes and cognitive phenotypes of 165 patients with early AD dementia.There was a synergistic adverse effect of homozygosity for the PICALM risk allele G in rs3851179 and APOE ?4 on volume in prefrontal and performance on the Trail Making Test A, which is sensitive to processing speed and working memory function.The data suggest a neural mechanism for APOE-PICALM interactions in patients with manifest AD and indicate that the PICALM genotype modulates both brain atrophy and cognitive performance in APOE ?4 carriers.

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APA:

Morgen, K., Ramirez, A., Frölich, L., Tost, H., Plichta, M.M., Kölsch, H.,... Meyer-Lindenberg, A. (2014). Genetic interaction of PICALM and APOE is associated with brain atrophy and cognitive impairment in Alzheimer's disease. Alzheimers & Dementia, 10(5 Suppl), S269-76. https://doi.org/10.1016/j.jalz.2013.11.001

MLA:

Morgen, Katrin, et al. "Genetic interaction of PICALM and APOE is associated with brain atrophy and cognitive impairment in Alzheimer's disease." Alzheimers & Dementia 10.5 Suppl (2014): S269-76.

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