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Do PPARGC1A and PPARalpha polymorphisms influence sprint or endurance phenotypes?
1Genetics and Molecular Biology Laboratory, Life Sciences Division, The Zinman College of Physical Education and Sport Sciences at the Wingate Institute, Netanya, Israel. eynon@wincol.ac.il
Summary
Genetic variations in PPARGC1A and PPARalpha genes influence athletic performance. Endurance athletes showed a lower frequency of the PPARGC1A Ser482 allele, suggesting a link to enhanced endurance capacity.
Area of Science:
- Exercise genetics
- Human performance
Background:
- Peroxisome proliferator-activated receptor gamma coactivator 1 (PPARGC1A) and Peroxisome proliferator-activated receptor alpha (PPARalpha) gene polymorphisms are linked to mRNA and protein activity.
- Genetic variations may influence athletic capabilities, particularly in endurance and sprint performance.
Purpose of the Study:
- To investigate the frequency distribution of functional Gly482Ser (rs8192678) in PPARGC1A and G/C (rs4253778) in PPARalpha polymorphisms among Israeli athletes and healthy controls.
- To determine the association of these genetic variations with endurance and sprint performance.
Main Methods:
- Genotyping of 155 Israeli athletes (endurance and sprinters) and 240 healthy controls for PPARGC1A Gly482Ser and PPARalpha G/C polymorphisms.
- Statistical analysis to compare genotype and allele frequencies between athlete groups and controls.
Main Results:
- Significant differences in PPARGC1A Ser482Gly genotype frequencies were observed between endurance athletes and sprinters (P=0.005), and between endurance athletes and controls (P=0.0003).
- Endurance athletes exhibited a significantly lower frequency of the PPARGC1A Ser482 allele (0.25) compared to controls (0.43, P=0.0001).
- A trend towards a higher proportion of the PPARalpha GG genotype was noted in endurance athletes compared to sprinters (P=0.051).
Conclusions:
- A lower frequency of the PPARGC1A Ser482 allele is associated with enhanced endurance performance.
- A higher frequency of the PPARalpha GG genotype may also be linked to increased endurance ability.
- These findings highlight the role of specific gene polymorphisms in determining athletic performance, particularly in endurance disciplines.
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