The effect of apolipoprotein E polymorphism on serum metabolome – a population-based 10-year follow-up study
Open accessAbstract
Apolipoprotein E (apoE) is the key regulator of plasma lipids, mediating altered functionalities in lipoprotein metabolism – affecting the risk of coronary artery (CAD) and Alzheimer’s diseases, as well as longevity. Searching pathways influenced by apoE prior to adverse manifestations, we utilized a metabolome dataset of 228 nuclear-magnetic-resonance-measured serum parameters with a 10-year follow-up from the population-based Young Finns Study cohort of 2,234 apoE-genotyped (rs7412, rs429358) adults, aged 24–39 at baseline. At the end of our follow-up, by limiting FDR-corrected p < 0.05, regression analyses revealed 180/228 apoE-polymorphism-related associations with the studied metabolites, in all subjects – without indications of apoE x sex interactions. Across all measured apoE- and apoB-containing lipoproteins, ε4 allele had consistently atherogenic and ε2 protective effect on particle concentrations of free/esterified cholesterol, triglycerides, phospholipids and total lipids. As novel findings, ε4 associated with glycoprotein acetyls, LDL-diameter and isoleucine – all reported biomarkers of CAD-risk, inflammation, diabetes and total mortality. ApoE-subgroup differences persisted through our 10-year follow-up, although some variation of individual metabolite levels was noticed. In conclusion, apoE polymorphism associate with a complex metabolic change, including aberrations in multiple novel biomarkers related to elevated cardiometabolic and all-cause mortality risk, extending our understanding about the role of apoE in health and disease.
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APOE has a core physiological function in peripheral lipid metabolism.
“We next asked whether these APOE -genotype dependent effects extend beyond the brain to peripheral lipid metabolism, a core physiological function of APOE 27 .”
From APOE2 attenuates APOE4-associated amyloid pathology and related toxicity in a mouse model of Alzheimer’s disease (2026) · cites this paper as [27]
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- Authors
- Karjalainen, J.-P., Mononen, N., Hutri-Kähönen, N., Lehtimäki, M., Juonala, M., Ala-Korpela, M., Kähönen, M., Raitakari, O., & Lehtimäki, T.
- Affiliations
- Tampere University (FI)
- Fimlab (Finland) (FI)
- University of Turku (FI)
- Tampere University Hospital (FI)
- Corresponding author
- Karjalainen, Juho-Pekka
- Venue
- Scientific Reports
- Published
- 2019-01-24
- Volume
- 9
- Issue
- 1
- Pages
- 458-458
- ISSN
- 2045-2322 (ISSN-L)
- PMC
- PMC6346097
- OpenAlex
- W2912601519
- Cited by
- 55
- References
- 4
- Citations by year
- 2026: 8 · 2025: 5 · 2024: 4 · 2023: 8 · 2022: 12 · 2021: 7 · 2020: 6 · 2019: 5
- FWCI
- 7.17
- Type
- journal article
- Language
- en
- Open access
- gold
- doi.org
- Locations
- Scientific Reports (publishedVersion, cc-by)
- Europe PMC (PubMed Central) (publishedVersion, other-oa)
- PubMed Central (publishedVersion, cc-by)
- PubMed (publishedVersion)
- Explore Bristol Research (publishedVersion, cc-by)
- Bristol Research (University of Bristol) (publishedVersion, cc-by)
- UTUPub (University of Turku) (submittedVersion)
- UTUPub (University of Turku) (submittedVersion, cc-by)
- DOAJ (DOAJ: Directory of Open Access Journals) (submittedVersion)
- Tampere University Institutional Repository (Tampere University) (submittedVersion, cc-by)
- Funders
- Foundation for Cardiovascular Research
- Yrjö Jahnssonin Säätiö
- Wellcome Trust
- British Heart Foundation
- European Commission (755320)
- University of Bristol (MC_UU_12013/1, MC_UU_12013)
- Kela (X51001)
- Academy of Finland (X51001, 124,282, 134309, 121584, 286,284, 129378, 126925, 121584, 124282, 129378, 755320, 126,925, 41071, 117787)
- Fondation pour la Recherche Médicale
- Suomen Kulttuurirahasto
- Tekes
- Juho Vainion Säätiö
- Novo Nordisk
- Päivikki ja Sakari Sohlbergin Säätiö
- Signe ja Ane Gyllenbergin Säätiö
- Tampereen Yliopisto (X51001)
- Emil Aaltosen Säätiö (286284, 755320, X51001)
- Sydäntutkimussäätiö (121584, 286284, 124282, 755320, X51001, 134309, 126925, 129378, 117787, 41071)
- Oulun Yliopisto
- Tampereen Tuberkuloosisäätiö (755320, 286284, X51001)
- Diabetesliitto
- Paavo Nurmen Säätiö
- Novo Nordisk Fonden
- Diabetestutkimussäätiö
- Medical Research Council (MC_UU_12013, MCUU12013/1, MC_UU_00011/1)
- Pirkanmaan Rahasto
- H2020 European Research Council (742927)
- Topics
- Health Sciences › Medicine › Surgery › Lipoproteins and Cardiovascular Health
- Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Metabolomics and Mass Spectrometry Studies
- Health Sciences › Medicine › Endocrinology, Diabetes and Metabolism › Diabetes, Cardiovascular Risks, and Lipoproteins
- Keywords
- APOE polymorphism, APOE ε4, serum metabolome, lipoproteins, coronary artery disease risk, glycoprotein acetyls, isoleucine, triglycerides, esterified cholesterol, phospholipids, cardiometabolic biomarkers, all-cause mortality, Young Finns Study
- MeSH terms
- Adult, Alleles, Apolipoproteins E, Cross-Sectional Studies, Disease Susceptibility, Female, Gene Frequency, Genotype, Humans, Longitudinal Studies, Male, Polymorphism, Genetic, Biomarkers, Metabolomics, Metabolome, Young Adult
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