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Apolipoprotein C-III SstI genotypes modulate exercise-induced hypotriglyceridemia.
1School of Sport Science, Sungkyunkwan University, Suwon, Kyunggi-do, South Korea.
Medicine and Science in Sports and Exercise
|June 5, 2004
Summary
Exercise effectively lowers triglycerides, especially in individuals with the S2S2 apolipoprotein C-III SstI gene variant. This genetic factor influences triglyceride response to exercise interventions.
Area of Science:
- Genetics
- Exercise Physiology
- Metabolic Research
Background:
- Elevated triglycerides (TG) are a risk factor for cardiovascular disease.
- Exercise is a known intervention for lowering TG.
- The role of genetic variations in exercise response is an area of active research.
Purpose of the Study:
- To determine if exercise's triglyceride-lowering effect depends on the apolipoprotein (apo) C-III SstI gene polymorphism.
- To identify genetic predispositions for exercise-induced TG reduction.
Main Methods:
- 100 Korean men with defined apo C-III SstI genotypes (S1S1, S1S2, S2S2) underwent a 6-day moderate exercise intervention.
- Measurements included body composition, fasting lipids, glucose, and insulin.
- Statistical analyses included ANOVA, ANCOVA, and multivariate linear regression.
Main Results:
- Individuals with the S2S2 genotype had higher baseline TG levels compared to the S1S1 genotype.
- Waist circumference and genotype were significant predictors of pre-intervention TG.
- The S2S2 genotype group showed a greater reduction in TG after exercise, adjusted for baseline levels.
Conclusions:
- The apo C-III SstI gene polymorphism may predict an individual's susceptibility to exercise interventions for lowering fasting TG.
- This finding could personalize exercise recommendations for managing hypertriglyceridemia.