How does pycnogenol® influence oxidative damage to DNA and its repair ability in elderly people?
M Dvořáková1, Z Paduchová, J Muchová
1Department of Medical Chemistry, Biochemistry and Clinical Biochemistry, Faculty of Medicine, Comenius University, Bratislava, Slovak Republic. monika.dvorakova@gmail.com
Prague Medical Report
|December 30, 2010
Summary
Pine bark extract (Pycnogenol) did not affect DNA oxidative damage or repair in the elderly. However, a link between DNA damage and repair ability was observed in this group.
Area of Science:
- Oxidative Stress Research
- DNA Damage and Repair Mechanisms
- Nutraceutical Efficacy
Background:
- Oxidative damage to DNA, indicated by 8-oxo-7,8-dihydroguanine (8-oxoG), increases with age.
- Polyphenolic compounds, such as Pycnogenol (Pyc) from pine bark, are investigated for antioxidant properties.
- The impact of Pyc on DNA integrity and repair in elderly populations requires further elucidation.
Purpose of the Study:
- To evaluate the effect of Pycnogenol supplementation on DNA oxidative damage (8-oxoG) in elderly individuals.
- To assess the influence of Pycnogenol on DNA repair capacity in the same demographic.
- To explore potential correlations between DNA damage levels and DNA repair ability.
Main Methods:
- Randomized, double-blind, placebo-controlled study design.
- Administration of Pycnogenol (Pyc) or placebo for three months.
- Measurement of 8-oxo-7,8-dihydroguanine (8-oxoG) as a biomarker of DNA damage.
- Assessment of DNA repair ability.
Main Results:
- Three months of Pycnogenol administration showed no significant effect on the level of 8-oxoG.
- Pycnogenol supplementation did not alter DNA repair ability in the elderly participants.
- A significant relationship was identified between the level of 8-oxoG and DNA repair ability within the study group.
Conclusions:
- Pycnogenol did not demonstrate a positive effect on DNA oxidative damage or repair in elderly individuals.
- The study highlights a correlation between DNA damage markers and repair capacity in older adults.
- Further research is warranted to investigate Pycnogenol's mechanisms and efficacy across different age groups.
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