Cited by 178Lipoproteins and Cardiovascular HealthDementia and Cognitive Impairment ResearchGenetic Associations and Epidemiology

The DOI matches its Crossref record; 49 of the 49 references it cites were found in a registry or an index.

Low LDL cholesterol,PCSK9 and HMGCR genetic variation, and risk of Alzheimer’s disease and Parkinson’s disease: Mendelian randomisation study

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Benn, Marianne, Nordestgaard, Børge G, Frikke-Schmidt, Ruth, Tybjærg-Hansen, Anne·2017·BMJ

Abstract

Objective To test the hypothesis that low density lipoprotein (LDL) cholesterol due to genetic variation in the genes responsible for LDL cholesterol metabolism and biosynthesis(PCSK9 and 3-hydroxy-3-methylglutaryl-CoA reductase (HMGCR), respectively) is associated with a high risk of Alzheimer’s disease, vascular dementia, any dementia, and Parkinson’s disease in the general population. Design Mendelian randomisation study. Setting Copenhagen General Population Study and Copenhagen City Heart Study. Participants 111 194 individuals from the Danish general population. Main outcome measures Risk of Alzheimer’s disease, vascular dementia, all dementia, and Parkinson’s disease. Results In observational analyses, the multifactorially adjusted hazard ratio for Parkinson’s disease in participants with an LDL cholesterol level <1.8 mmol/L versus ≥4.0 mmol/L was 1.70 (95% confidence interval 1.03 to 2.79), whereas the corresponding hazard ratios for Alzheimer’s disease, vascular dementia, or any dementia did not differ from 1.0. PCSK9 and HMGCR variants combined were associated with a 9.3% lower LDL cholesterol level. In genetic, causal analyses adjusted for age, sex, and year of birth, the risk ratios for a lifelong 1 mmol/L lower LDL cholesterol level were 0.57 (0.27 to 1.17) for Alzheimer’s disease, 0.81 (0.34 to 1.89) for vascular dementia, 0.66 (0.34 to 1.26) for any dementia, and 1.02 (0.26 to 4.00) for Parkinson’s disease. Summary level data from the International Genomics of Alzheimer’s Project using Egger Mendelian randomisation analysis gave a risk ratio for Alzheimer’s disease of 0.24 (0.02 to 2.79) for 26 PCSK9 and HMGCR variants, and of 0.64 (0.52 to 0.79) for 380 variants of LDL cholesterol level lowering. Conclusion Low LDL cholesterol levels due to PCSK9 and HMGCR variants had no causal effect on high risk of Alzheimer’s disease, vascular dementia, any dementia, or Parkinson’s disease; however, low LDL cholesterol levels may have a causal effect in reducing the risk of Alzheimer’s disease.

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  1. [26]Nordestgaard BG, Palmer TM, Benn M, et al. The effect of elevated body mass index on ischemic heart disease risk: causal estimates from a Mendelian randomisation approach. PLoS Med 2012; 9: e1001212 10.1371/journal.pmed.1001212 pmid:22563304. 22563304 PMC3341326 · DOI
  2. [35]Instrumental variables and GMM: estimation and testing. Stata J 2003; 3: 1- 33.

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Metadata

Authors
Benn, M., Nordestgaard, B. G., Frikke-Schmidt, R., & Tybjærg-Hansen, A.
Affiliations
University of Copenhagen (DK)
Corresponding author
Benn, Marianne
Venue
BMJ
Publisher
BMJ
Published
2017-04-24
Volume
357
Pages
j1648
ISSN
  • 1756-1833 (ISSN-L)
  • 0959-8138
OpenAlex
W2607529696
Cited by
178
References
49
Citations by year
2026: 11 · 2025: 14 · 2024: 22 · 2023: 14 · 2022: 21 · 2021: 23 · 2020: 22 · 2019: 18 · 2018: 22 · 2017: 10
FWCI
20.18
Type
journal article
Language
en
Open access
Locations
  • BMJ (publishedVersion, cc-by-nc)
  • Europe PMC (PubMed Central) (publishedVersion, cc-by-nc)
  • PubMed Central (publishedVersion, cc-by-nc)
  • PubMed (publishedVersion)
  • Research at the University of Copenhagen (University of Copenhagen) (publishedVersion, cc-by-nc)
  • HighWire Press Open Archive (submittedVersion)
Funders
  • Sundhed og Sygdom, Det Frie Forskningsråd
  • Gentofte Hospital
  • Herlev Hospital
  • Lundbeckfonden (R126-2012-12556, R211-2015-3977)
  • Danmarks Frie Forskningsfond
Topics
  • Health Sciences › Medicine › Cardiology and Cardiovascular Medicine › Lipoproteins and Cardiovascular Health
  • Health Sciences › Medicine › Psychiatry and Mental health › Dementia and Cognitive Impairment Research
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Genetics › Genetic Associations and Epidemiology
Keywords
low LDL cholesterol, PCSK9, HMGCR, Alzheimer's disease, Parkinson's disease, vascular dementia, dementia, LDL cholesterol metabolism, genetic variants
MeSH terms
Proprotein Convertase 9, Adult, Aged, Alzheimer Disease, Denmark, Female, Follow-Up Studies, Genotype, Humans, Hydroxymethylglutaryl CoA Reductases, Cholesterol, LDL, Male, Middle Aged, Parkinson Disease, Prospective Studies, Genetic Variation, Biomarkers, Proportional Hazards Models, Genetic Predisposition to Disease, Mendelian Randomization Analysis

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