Genetically elevated high-density lipoprotein cholesterol through the cholesteryl ester transfer protein gene does not associate with risk of Alzheimer's disease

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2 Scopus citations

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.

Original languageEnglish
Pages (from-to)595-598
Number of pages4
JournalAlzheimer's and Dementia: Diagnosis, Assessment and Disease Monitoring
Volume10
DOIs
StatePublished - Jan 1 2018

Bibliographical note

Publisher Copyright:
© 2018 The Authors

Funding

G.M. Peloso is supported by the National Heart, Lung, and Blood Institute of the National Institutes of Health under award number K01HL125751 . S.S. and A.L.D. are supported by grants from the National Institute on Aging : R01 AG054076 , R01 AG033193 , U01 AG049505 , R01 AG008122 (S. Seshadri), and R01AG049607 ) and the National Institute of Neurological Disorders and Stroke ( R01-NS017950 ). The authors thank all the participants and studies contributing to the GLGC and IGAP exome chip results. A full list of collaborators from the IGAP exome chip consortium is listed in the supplement.

FundersFunder number
National Institutes of Health (NIH)
National Institute on AgingR01 AG054076, R01 AG033193, U01 AG049505, R01AG049607, R01 AG008122
National Institute on Aging
National Heart, Lung, and Blood Institute Family Blood Pressure ProgramK01HL125751
National Heart, Lung, and Blood Institute Family Blood Pressure Program
Institute of Neurological Disorders and Stroke National Advisory Neurological Disorders and Stroke CouncilR01-NS017950
Institute of Neurological Disorders and Stroke National Advisory Neurological Disorders and Stroke Council
Medical Research Council-São Paulo Research FoundationMR/R024804/1
Medical Research Council-São Paulo Research Foundation

    Keywords

    • Cholesteryl ester transfer protein
    • Genetics
    • HDL-C
    • Instrumental variables
    • Single nucleotide polymorphisms

    ASJC Scopus subject areas

    • Clinical Neurology
    • Psychiatry and Mental health

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