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Related Experiment Videos

APOA5 variant Ser19Trp influences a decrease of the total cholesterol in a male 8 year cohort.

J A Hubacek1, Z Skodová, V Adámková

  • 1Institute for Clinical and Experimental Medicine, Prague, Czech Republic. jaroslav.hubacek@medicon.cz

Clinical Biochemistry
|January 3, 2006
PubMed
Summary

Genetic factors influence how diet affects cholesterol. The Ser19 > Trp variant of apolipoprotein A5 (APOA5) significantly impacts cholesterol reduction in response to dietary changes, highlighting personalized nutrition potential.

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Area of Science:

  • Genetics
  • Nutritional Science
  • Cardiovascular Health

Background:

  • Dietary composition significantly impacts plasma lipid levels.
  • Understanding the genetic determinants of lipid response to diet is crucial for personalized health strategies.
  • Apolipoprotein A5 (APOA5) is a key regulator of triglyceride metabolism and is implicated in lipid disorders.

Purpose of the Study:

  • To investigate whether genetic variations in the apolipoprotein A5 (APOA5) gene influence the relationship between dietary composition and plasma lipid levels.
  • To evaluate the impact of specific APOA5 variants (T-1131 > C, Ser19 > Trp, Val153 > Met) on changes in plasma lipid concentrations over time in response to dietary modifications.

Main Methods:

  • A longitudinal study involving 117 males with significant dietary changes and a decrease in total cholesterol over an 8-year period.

Related Experiment Videos

  • Genotyping for common APOA5 variants (T-1131 > C, Ser19 > Trp, Val153 > Met).
  • Analysis of plasma lipid concentrations (including total cholesterol) at baseline and follow-up in relation to APOA5 genotypes.

    • Main Results:

    • The APOA5 T-1131 > C and Val153 > Met variants did not show a significant influence on lipid level changes.
    • Individuals with the Ser19 > Trp variant (Trp19 carriers) exhibited a greater than 20% decrease in plasma cholesterol, while Ser/Ser19 homozygotes showed a more modest 8% reduction.
    • The differential response in cholesterol reduction between Ser/Ser19 homozygotes and Trp19 carriers was statistically significant (P < 0.005).

    Conclusions:

    • The Ser19 > Trp variant within the APOA5 gene plays a significant role in modulating an individual's response to dietary interventions.
    • This finding suggests that genetic predisposition, specifically the APOA5 Ser19 > Trp variant, influences sensitivity to dietary composition.
    • Personalized dietary recommendations may be enhanced by considering APOA5 genetic status for optimizing lipid management.