INTRODUCTION: There is conflicting evidence whether high-density lipoprotein cholesterol (HDL-C) is a risk factor for Alzheimer's disease (AD) and dementia. Genetic variation in the cholesteryl ester transfer protein (CETP) locus is associated with altered HDL-C. We aimed to assess AD risk by genetically predicted HDL-C. METHODS: Ten single nucleotide polymorphisms within the CETP locus predicting HDL-C were applied to the International Genomics of Alzheimer's Project (IGAP) exome chip stage 1 results in up 16,097 late onset AD cases and 18,077 cognitively normal elderly controls. We performed instrumental variables analysis using inverse variance weighting, weighted median, and MR-Egger. RESULTS: Based on 10 single nucleotide polymorphisms distinctly predicting HDL-C in the CETP locus, we found that HDL-C was not associated with risk of AD (P > .7). DISCUSSION: Our study does not support the role of HDL-C on risk of AD through HDL-C altered by CETP. This study does not rule out other mechanisms by which HDL-C affects risk of AD.
Genetically elevated high-density lipoprotein cholesterol through the cholesteryl ester transfer protein gene does not associate with risk of Alzheimer's disease / Peloso, Gina M.*; van der Lee, Sven J.; Sims, R.; van der Lee, S.J.; Naj, A.C.; Bellenguez, C.; Badarinarayan, N.; Jakobsdottir, J.; Kunkle, B.W.; Boland, A.; Raybould, R.; Bis, J.C.; Martin, E.R.; Grenier-Boley, B.; Heilmann-Heimbach, S.; Chouraki, V.; Kuzma, A.B.; Sleegers, K.; Vronskaya, M.; Ruiz, A.; Graham, R.R.; Olaso, R.; Hoffmann, P.; Grove, M.L.; Vardarajan, B.N.; Hiltunen, M.; Nöthen, M.M.; White, C.C.; Hamilton-Nelson, K.L.; Epelbaum, J.; Maier, W.; Choi, S.H.; Beecham, G.W.; Dulary, C.; Herms, S.; Smith, A.V.; Funk, C.C.; Derbois, null; Forstner, A.J.; Ahmad, S.; Li, H.; Bacq, D.; Harold, D.; Satizabal, C.L.; Valladares, O.; Squassina, A.; Thomas, R.; Brody, J.A.; Qu, L.; Sánchez-Juan, P.; Morgan, T.; Wolters, F.J.; Zhao, Y.; Garcia, F.S.; Denning, N.; Fornage, M.; Malamon, J.; Naranjo, M.C.D.; Majounie, E.; Mosley, T.H.; 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[10.1016/j.dadm.2018.08.008]
Genetically elevated high-density lipoprotein cholesterol through the cholesteryl ester transfer protein gene does not associate with risk of Alzheimer's disease
Sorbi, S.;Nacmias, B.;
2018
Abstract
INTRODUCTION: There is conflicting evidence whether high-density lipoprotein cholesterol (HDL-C) is a risk factor for Alzheimer's disease (AD) and dementia. Genetic variation in the cholesteryl ester transfer protein (CETP) locus is associated with altered HDL-C. We aimed to assess AD risk by genetically predicted HDL-C. METHODS: Ten single nucleotide polymorphisms within the CETP locus predicting HDL-C were applied to the International Genomics of Alzheimer's Project (IGAP) exome chip stage 1 results in up 16,097 late onset AD cases and 18,077 cognitively normal elderly controls. We performed instrumental variables analysis using inverse variance weighting, weighted median, and MR-Egger. RESULTS: Based on 10 single nucleotide polymorphisms distinctly predicting HDL-C in the CETP locus, we found that HDL-C was not associated with risk of AD (P > .7). DISCUSSION: Our study does not support the role of HDL-C on risk of AD through HDL-C altered by CETP. This study does not rule out other mechanisms by which HDL-C affects risk of AD.I documenti in FLORE sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.