Cited by 36Fatty Acid Research and HealthLipid metabolism and disordersPeroxisome Proliferator-Activated Receptors

PPARα L162V polymorphism alters the potential of n‐3 fatty acids to increase lipoprotein lipase activity

Rudkowska, Iwona, Caron‐Dorval, Dominique, Verreault, Mélanie, Couture, Patrick, Deshaies, Yves, Barbier, Olivier, Vohl, Marie‐Claude·2010·Molecular Nutrition & Food Research

Abstract

Omega‐3 fatty acids (FAs) may accelerate plasma triglyceride (TG) clearance by altering lipoprotein lipase (LPL) activity. Yet, the ability of n‐3 FAs to increase LPL activity is dependent on transcription factors such as peroxisome proliferator‐activated receptor alpha (PPARα). The objective was to examine the effects of n‐3 FAs on LPL activity considering the occurrence of PPAR α L162V polymorphism. First, 14 pairs of men either L162 homozygotes or carriers of the V162 allele were supplemented with n‐3 FAs. Second, transient transfections in HepG2 cells, for the L162‐ and V162‐PPARα variants with the peroxisome proliferator‐response element from the human LPL gene, were transactivated with n‐3 FAs. In vivo results demonstrate that the LPL activity increased non‐significantly by 14.4% in L162 homozygotes compared with 6.6% in carriers of the PPAR α‐V162 allele, after n‐3 FA supplementation. Additionally, the L162 homozygotes tended towards an inverse correlation between LPL activities and plasma TG levels. Conversely, carriers of the V162 allele showed no such relationship. In vitro data demonstrates that transcription rates of LPL tended to be higher for the L162‐PPARα than V162‐PPARα after n‐3 FAs activation. Overall, these results indicate that n‐3 FA supplementation increases the transcription rate of LPL to a greater extent in L162‐PPARα than V162‐PPARα.

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Crossref · 10.1002/mnfr.200900085

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Authors
Rudkowska, I., Caron‐Dorval, D., Verreault, M., Couture, P., Deshaies, Y., Barbier, O., & Vohl, M.
Affiliations
  • Centre hospitalier de l'Université Laval (CA)
  • Institut sur la nutrition et les aliments fonctionnels (INAF) (CA)
Corresponding author
Vohl, Marie‐Claude
Venue
Molecular Nutrition & Food Research
Publisher
Wiley
Published
2010-04
Volume
54
Issue
4
Pages
543-550
ISSN
  • 1613-4125 (ISSN-L)
  • 1613-4133
OpenAlex
W2062737918
Cited by
36
References
45
Citations by year
2026: 1 · 2025: 2 · 2024: 1 · 2023: 2 · 2022: 5 · 2021: 2 · 2020: 2 · 2018: 2 · 2017: 5 · 2016: 1 · 2015: 3 · 2014: 1 · 2013: 2 · 2012: 4
FWCI
2.25
Type
journal article
Language
en
Open access
closed
Locations
  • Molecular Nutrition & Food Research (publishedVersion)
  • PubMed (publishedVersion)
  • Corpus Université Laval (Université Laval) (submittedVersion)
Funders
  • Canadian Institutes of Health Research (MOP-200609)
  • CIHR Bisby Fellowship
Topics
  • Health Sciences › Nursing › Nutrition and Dietetics › Fatty Acid Research and Health
  • Health Sciences › Medicine › Cardiology and Cardiovascular Medicine › Lipid metabolism and disorders
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Peroxisome Proliferator-Activated Receptors
Keywords
PPARα, omega-3 fatty acids, lipoprotein lipase, plasma triglycerides, triglyceride clearance, peroxisome proliferator response element, dietary supplementation, genetic polymorphism
MeSH terms
Adolescent, Adult, Diet, Docosahexaenoic Acids, Erythrocytes, Fatty Acids, Genotype, Carcinoma, Hepatocellular, Humans, Lipids, Lipoprotein Lipase, Liver Neoplasms, Male, Middle Aged, Polymorphism, Genetic, Transfection, Eicosapentaenoic Acid, Fatty Acids, Omega-3, Gene Expression, Cell Line, Tumor, PPAR alpha

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