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Genetic Interaction with Plasma Lipids on Alzheimer's Disease in the Framingham Heart Study.


ABSTRACT: Epidemiological and genetic studies have pointed to the role of cholesterol in Alzheimer's disease (AD). We explored the interaction of a genetic risk score (GRS) of AD risk alleles with mid-life plasma lipid levels (LDL-C, HDL-C, and triglycerides) on risk for AD in the Framingham Heart Study (FHS). Mid-life (between the ages of 40-60 years old) lipid levels were obtained from individuals in the FHS Original and Offspring cohorts (157 cases and 2,882 controls) with genetic data and AD status available. Cox proportional hazards regression was performed to test the interaction between mid-life lipid levels and an AD GRS, as well as the individual contributing SNPs, on risk of incident AD adjusting for age, sex, and cohort. We found a significant interaction between a GRS of AD loci and log triglyceride levels on risk of clinical AD (p?=?0.006), but no interaction of the GRS with HDL-C (p?=?0.458) or LDL-C (p?=?0.366). We then tested the interaction between the individual SNPs contributing to the GRS and log triglycerides. We found two SNPs that had interactions with triglycerides on AD risk that reached a p-value?

SUBMITTER: Peloso GM 

PROVIDER: S-EPMC6460910 | biostudies-literature | 2018

REPOSITORIES: biostudies-literature

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Genetic Interaction with Plasma Lipids on Alzheimer's Disease in the Framingham Heart Study.

Peloso Gina M GM   Beiser Alexa S AS   Destefano Anita L AL   Seshadri Sudha S  

Journal of Alzheimer's disease : JAD 20180101 3


Epidemiological and genetic studies have pointed to the role of cholesterol in Alzheimer's disease (AD). We explored the interaction of a genetic risk score (GRS) of AD risk alleles with mid-life plasma lipid levels (LDL-C, HDL-C, and triglycerides) on risk for AD in the Framingham Heart Study (FHS). Mid-life (between the ages of 40-60 years old) lipid levels were obtained from individuals in the FHS Original and Offspring cohorts (157 cases and 2,882 controls) with genetic data and AD status av  ...[more]

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