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Description
| - Our aim was to characterize internal and external factors that underlie inter-individual variability in DNA damage and repair and to identify dietary habits beneficial for maintaining DNA integrity. Habitual diet was estimated in 340 healthy individuals using a food frequency questionnaire and biomarkers of antioxidant status were quantified in fasting blood samples. DNA repair was characterized by genetic variants and functional activities of base and nucleotide excision repair pathways. Sex, fruit-based food consumption and XPG genotype were factors significantly associated with the level of DNA damage. DNA damage was higher in women (p=0.035). Fruit consumption was negatively associated with the number of all measured DNA lesions, and this effect was mediated mostly by cryptoxanthin and tocopherol (p < 0.05). XPG 1104His homozygotes were more vulnerable to DNA damage accumulation (p = 0.001). Sex and individual antioxidants were also associated with DNA repair capacity; both the base and nukleotide excision repairs were lower in women and the latter increased with higher plasma levels of ascorbic acid and carotene (p < 0.05). We propose that the positive health effect of fruit intake is partially mediated via DNA damage suppression and a simultaneous increase in DNA repair capacity.
- Our aim was to characterize internal and external factors that underlie inter-individual variability in DNA damage and repair and to identify dietary habits beneficial for maintaining DNA integrity. Habitual diet was estimated in 340 healthy individuals using a food frequency questionnaire and biomarkers of antioxidant status were quantified in fasting blood samples. DNA repair was characterized by genetic variants and functional activities of base and nucleotide excision repair pathways. Sex, fruit-based food consumption and XPG genotype were factors significantly associated with the level of DNA damage. DNA damage was higher in women (p=0.035). Fruit consumption was negatively associated with the number of all measured DNA lesions, and this effect was mediated mostly by cryptoxanthin and tocopherol (p < 0.05). XPG 1104His homozygotes were more vulnerable to DNA damage accumulation (p = 0.001). Sex and individual antioxidants were also associated with DNA repair capacity; both the base and nukleotide excision repairs were lower in women and the latter increased with higher plasma levels of ascorbic acid and carotene (p < 0.05). We propose that the positive health effect of fruit intake is partially mediated via DNA damage suppression and a simultaneous increase in DNA repair capacity. (en)
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Title
| - Both genetic and dietary factors underlie individual differences in DNA damage levels and DNA repair capacity
- Both genetic and dietary factors underlie individual differences in DNA damage levels and DNA repair capacity (en)
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skos:prefLabel
| - Both genetic and dietary factors underlie individual differences in DNA damage levels and DNA repair capacity
- Both genetic and dietary factors underlie individual differences in DNA damage levels and DNA repair capacity (en)
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skos:notation
| - RIV/68378041:_____/14:00432492!RIV15-GA0-68378041
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http://linked.open...avai/riv/aktivita
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http://linked.open...avai/riv/aktivity
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http://linked.open...iv/cisloPeriodika
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http://linked.open...vai/riv/dodaniDat
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http://linked.open...aciTvurceVysledku
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http://linked.open.../riv/druhVysledku
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http://linked.open...iv/duvernostUdaju
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http://linked.open...titaPredkladatele
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http://linked.open...dnocenehoVysledku
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http://linked.open...ai/riv/idVysledku
| - RIV/68378041:_____/14:00432492
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http://linked.open...riv/jazykVysledku
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http://linked.open.../riv/klicovaSlova
| - DNA damage; DNA repair capacity; diet (en)
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http://linked.open.../riv/klicoveSlovo
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http://linked.open...odStatuVydavatele
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http://linked.open...ontrolniKodProRIV
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http://linked.open...i/riv/nazevZdroje
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http://linked.open...in/vavai/riv/obor
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http://linked.open...ichTvurcuVysledku
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http://linked.open...cetTvurcuVysledku
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http://linked.open...vavai/riv/projekt
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http://linked.open...UplatneniVysledku
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http://linked.open...v/svazekPeriodika
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http://linked.open...iv/tvurceVysledku
| - Vodička, Pavel
- Slyšková, Jana
- Collins, A. R.
- Novosadová, Vendula
- Blomhoff, R.
- Carlsen, M. H.
- Karlsen, A.
- Lorenzo, Y.
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http://linked.open...ain/vavai/riv/wos
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issn
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number of pages
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http://bibframe.org/vocab/doi
| - 10.1016/j.dnarep.2014.01.016
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