Project information
Bioavailability and mechanism of antioxidant activity of phenolic acids and lignans
- Project Identification
- GA303/00/D062
- Project Period
- 1/2000 - 1/2003
- Investor / Pogramme / Project type
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Czech Science Foundation
- Standard Projects
- MU Faculty or unit
- Faculty of Medicine
Recent epidemiological data support a protective effect of intake of vegetables and fruits against cancer and cardiovascular diseases. The protective effect is also attributed to antioxidant polyphenolic compounds, such as flavonoids, found in the plants in the high amounts. Polyphenols show a strong antioxidant activity in vitro, but little is known about their bioavailability. The former purpose of this project is to determine the bioavailability and the mechanism of antioxidative effect of dicoffeoyl quinic acids and flavonoids present in the artichoke extract. The interest in dicaffeoylquinic acids has expanded rapidly in the last years due to their anti-HIV and HIV-integrase inhibition activity. The antioxidant activity of caffeoylquinic acids can be mediated by the potent antiradical activity and/or by forming chelates with ferric ions, that cannot produce reactive oxygen species. The letter purpose of this project is to discover the mechanism of antioxidative effect of dibenzocyclooctadiene lign
Publications
Total number of publications: 34
2008
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Influence of dietary phenolic acids on redox status of iron: Ferrous iron autoxidation and ferric iron reduction
Food Chemistry, year: 2008, volume: 106, edition: 2
2004
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Antiradikálová aktivita fenolických sloučenin a jejich vliv na redoxní stav železa
48. Studentská vědecká konference, Program a abstakta, year: 2004
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Interaction of Plant Polyphenols with Iron Ions
Vitamins 2004 - Targeted Nutritional Therapy, year: 2004
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KINETIKA ZHÁŠENÍ RADIKÁLU 2,2-DIFENYL-1-PIKRYLHYDRAZYLU ROSTLINNÝMI POLYFENOLY
Chemické listy, year: 2004, volume: 98, edition: 8
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Mass spectrometry of 1,3- and 1,5-dicaffeoylquinic acids
Journal of Mass Spectrometry, year: 2004, volume: 39, edition: 4
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Porovnání metod stanovení antiradikálové aktivity založených na zhášení stabilních radikálů
Chemické listy, year: 2004, volume: 98, edition: 11
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Příjem, biologická dostupnost a metabolismus rostlinných polyfenolů u člověka
Chemické listy, year: 2004, volume: 98, edition: 5
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Výběr radikálu pro kinetické stanovení antiradikálové aktivity
MediFórum, Sborník abstakt, year: 2004
2003
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Kinetické stanovení antiradikálové aktivity
32. konference Syntéza a analýza léčiv, year: 2003
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Kinetické stanovení antiradikálové aktivity
47. Studentská vědecká konference, Abstrakta, year: 2003