Nov 13, 2019

Lipid lowering and Alzheimer disease risk: A mendelian randomization study

Annals of Neurology
Dylan M WilliamsAroon Hingorani

Abstract

To examine whether genetic variation affecting the expression or function of lipid-lowering drug targets is associated with Alzheimer disease (AD) risk, to evaluate the potential impact of long-term exposure to corresponding therapeutics. We conducted Mendelian randomization analyses using variants in genes that encode the protein targets of several approved lipid-lowering drug classes: HMGCR (encoding the target for statins), PCSK9 (encoding the target for PCSK9 inhibitors, eg, evolocumab and alirocumab), NPC1L1 (encoding the target for ezetimibe), and APOB (encoding the target of mipomersen). Variants were weighted by associations with low-density lipoprotein cholesterol (LDL-C) using data from lipid genetics consortia (n up to 295,826). We meta-analyzed Mendelian randomization estimates for regional variants weighted by LDL-C on AD risk from 2 large samples (total n = 24,718 cases, 56,685 controls). Models for HMGCR, APOB, and NPC1L1 did not suggest that the use of related lipid-lowering drug classes would affect AD risk. In contrast, genetically instrumented exposure to PCSK9 inhibitors was predicted to increase AD risk in both of the AD samples (combined odds ratio per standard deviation lower LDL-C inducible by the drug t...Continue Reading

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Citations

Mentioned in this Paper

EEF1A2
Mendelian Randomization Analysis
Meta Analysis (Statistical Procedure)
Magnetic Resonance Imaging
Genes
Coronary Artery Disease
PCSK9
Alzheimer's Disease
Proprotein Convertase 9
AMG 145

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