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

ARUK Consortium, GERAD/PERADES, CHARGE, ADGC, EADI, International Genomics of Alzheimer's Project (IGAP), ARUK Consortium, GERAD/PERADES, CHARGE, ADGC, EADI

Research output: Contribution to journalArticlepeer-review

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

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.

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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