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A genetic signature including apolipoprotein Eε4 potentiates the risk of herpes simplex-associated Alzheimer's disease.


ABSTRACT:

Introduction

Herpes simplex virus type 1 (HSV1) in combination with genetic susceptibility has previously been implicated in Alzheimer's disease (AD) pathogenesis.

Methods

Plasma from 360 AD cases, obtained on average 9.6 years before diagnosis, and their age- and sex-matched controls, were analyzed for anti-HSV1 immunoglobulin (Ig) G with enzyme-linked immunosorbent assays (ELISAs). A POE genotype and nine other selected risk genes for AD were extracted from a genome-wide association study analysis by deCODE genetics, Reykjavik, Iceland.

Results

The interaction between APOEε4 heterozygosity (APOEε24 or ε3/ε4) and anti-HSV1 IgG carriage increased the risk of AD (OR 4.55, P = .02). A genetic risk score based on the nine AD risk genes also interacted with anti-HSV1 IgG for the risk of developing AD (OR 2.35, P = .01).

Discussion

The present findings suggest that the APOEε4 allele and other AD genetic risk factors might potentiate the risk of HSV1-associated AD.

SUBMITTER: Lopatko Lindman K 

PROVIDER: S-EPMC6944738 | biostudies-literature | 2019

REPOSITORIES: biostudies-literature

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Publications

A genetic signature including apolipoprotein Eε4 potentiates the risk of herpes simplex-associated Alzheimer's disease.

Lopatko Lindman Karin K   Weidung Bodil B   Olsson Jan J   Josefsson Maria M   Kok Eloise E   Johansson Anders A   Eriksson Sture S   Hallmans Göran G   Elgh Fredrik F   Lövheim Hugo H  

Alzheimer's & dementia (New York, N. Y.) 20191104


<h4>Introduction</h4>Herpes simplex virus type 1 (HSV1) in combination with genetic susceptibility has previously been implicated in Alzheimer's disease (AD) pathogenesis.<h4>Methods</h4>Plasma from 360 AD cases, obtained on average 9.6 years before diagnosis, and their age- and sex-matched controls, were analyzed for anti-HSV1 immunoglobulin (Ig) G with enzyme-linked immunosorbent assays (ELISAs). <i>A</i> <i>POE</i> genotype and nine other selected risk genes for AD were extracted from a genom  ...[more]

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