K Valentova

Summary

Affiliation: Charles University
Country: Czech Republic

Publications

  1. ncbi request reprint Biosafety, antioxidant status, and metabolites in urine after consumption of dried cranberry juice in healthy women: a pilot double-blind placebo-controlled trial
    Katerina Valentova
    Departments of Medical Chemistry and Biochemistry and Microbiology, Faculty of Medicine and Dentistry, Palacky University, Hnevotinska 3, CZ 77515 Olomouc, Czech Republic
    J Agric Food Chem 55:3217-24. 2007
  2. ncbi request reprint Isoquercitrin: pharmacology, toxicology, and metabolism
    Katerina Valentova
    Department of Medical Chemistry and Biochemistry, Faculty of Medicine and Dentistry, Palacky University, Hnevotinska 3, CZ 775 15 Olomouc, Czech Republic Laboratory of Biotransformation, Institute of Microbiology, Academy of Sciences of the Czech Republic, Videnska 1083, Prague 4 CZ 142 20, Czech Republic Centre of Drug Dietary Supplements Interactions and Nutrigenetics, Faculty of Medicine and Dentistry, Palacky University, Hnevotinska 3, CZ 775 15 Olomouc, Czech Republic Electronic address
    Food Chem Toxicol 68:267-82. 2014
  3. doi request reprint Biosafety and antioxidant effects of a beverage containing silymarin and arginine. A pilot, human intervention cross-over trial
    Katerina Valentova
    Department of Medical Chemistry and Biochemistry, Faculty of Medicine and Dentistry, Palacky University, Hnevotinska 3, 77515 Olomouc, Czech Republic
    Food Chem Toxicol 56:178-83. 2013
  4. ncbi request reprint Maca (Lepidium meyenii) and yacon (Smallanthus sonchifolius) in combination with silymarin as food supplements: in vivo safety assessment
    Katerina Valentova
    Department of Medical Chemistry and Biochemistry, Palacky University, Olomouc, Czech Republic
    Food Chem Toxicol 46:1006-13. 2008
  5. ncbi request reprint Induction of glucokinase mRNA by dietary phenolic compounds in rat liver cells in vitro
    Katerina Valentova
    Department of Medical Chemistry and Biochemistry, Faculty of Medicine and Dentistry, Palacky University, Hnevotinska 3, 775 15 Olomouc, Czech Republic
    J Agric Food Chem 55:7726-31. 2007
  6. ncbi request reprint The biological and chemical variability of yacon
    Katerina Valentova
    Institute of Medical Chemistry and Biochemistry, Faculty of Medicine, Palacky University, Hnevotinska 3, CZ 77515 Olomouc, Czech Republic
    J Agric Food Chem 54:1347-52. 2006
  7. ncbi request reprint Radical scavenging and anti-lipoperoxidative activities of Smallanthus sonchifolius leaf extracts
    Katerina Valentova
    Palacky University, Faculty of Medicine, Institute of Medical Chemistry and Biochemistry, Hnevotinska 3, CZ 77515 Olomouc, Czech Republic
    J Agric Food Chem 53:5577-82. 2005
  8. ncbi request reprint The effect of Smallanthus sonchifolius leaf extracts on rat hepatic metabolism
    K Valentova
    Institute of Medical Chemistry and Biochemistry, Palacky University, Olomouc, Czech Republic
    Cell Biol Toxicol 20:109-20. 2004
  9. ncbi request reprint The in vitro biological activity of Lepidium meyenii extracts
    K Valentova
    Institute of Medical Chemistry and Biochemistry, Faculty of Medicine, Palacky University, Olomouc
    Cell Biol Toxicol 22:91-9. 2006
  10. ncbi request reprint Antioxidant activity of extracts from the leaves of Smallanthus sonchifolius
    Katerina Valentova
    Institute of Medical Chemistry and Biochemistry, Palacky University, Hnevotinska 3, 77515 Olomouc, Czech Republic
    Eur J Nutr 42:61-6. 2003

Collaborators

Detail Information

Publications13

  1. ncbi request reprint Biosafety, antioxidant status, and metabolites in urine after consumption of dried cranberry juice in healthy women: a pilot double-blind placebo-controlled trial
    Katerina Valentova
    Departments of Medical Chemistry and Biochemistry and Microbiology, Faculty of Medicine and Dentistry, Palacky University, Hnevotinska 3, CZ 77515 Olomouc, Czech Republic
    J Agric Food Chem 55:3217-24. 2007
    ..In conclusion, cranberry fruits are effective not only in the prevention of urinary tract infection but also for the prevention of oxidative stress...
  2. ncbi request reprint Isoquercitrin: pharmacology, toxicology, and metabolism
    Katerina Valentova
    Department of Medical Chemistry and Biochemistry, Faculty of Medicine and Dentistry, Palacky University, Hnevotinska 3, CZ 775 15 Olomouc, Czech Republic Laboratory of Biotransformation, Institute of Microbiology, Academy of Sciences of the Czech Republic, Videnska 1083, Prague 4 CZ 142 20, Czech Republic Centre of Drug Dietary Supplements Interactions and Nutrigenetics, Faculty of Medicine and Dentistry, Palacky University, Hnevotinska 3, CZ 775 15 Olomouc, Czech Republic Electronic address
    Food Chem Toxicol 68:267-82. 2014
    ..With respect to the safety, affordability and beneficial pharmacological activities, highly pure isoquercitrin is a prospective substance for food supplementation. ..
  3. doi request reprint Biosafety and antioxidant effects of a beverage containing silymarin and arginine. A pilot, human intervention cross-over trial
    Katerina Valentova
    Department of Medical Chemistry and Biochemistry, Faculty of Medicine and Dentistry, Palacky University, Hnevotinska 3, 77515 Olomouc, Czech Republic
    Food Chem Toxicol 56:178-83. 2013
    ..The trial showed that silymarin in vivo may protect erythrocytes against oxidative damage...
  4. ncbi request reprint Maca (Lepidium meyenii) and yacon (Smallanthus sonchifolius) in combination with silymarin as food supplements: in vivo safety assessment
    Katerina Valentova
    Department of Medical Chemistry and Biochemistry, Palacky University, Olomouc, Czech Republic
    Food Chem Toxicol 46:1006-13. 2008
    ..The effect of maca on AST level and blood pressure must be considered when using high doses of maca powder. This effect could be reversed by supplementation with silymarin...
  5. ncbi request reprint Induction of glucokinase mRNA by dietary phenolic compounds in rat liver cells in vitro
    Katerina Valentova
    Department of Medical Chemistry and Biochemistry, Faculty of Medicine and Dentistry, Palacky University, Hnevotinska 3, 775 15 Olomouc, Czech Republic
    J Agric Food Chem 55:7726-31. 2007
    ..Most of the phenolics increased the level of glucokinase mRNA after 24 h in the same way as insulin (10(-7) M)...
  6. ncbi request reprint The biological and chemical variability of yacon
    Katerina Valentova
    Institute of Medical Chemistry and Biochemistry, Faculty of Medicine, Palacky University, Hnevotinska 3, CZ 77515 Olomouc, Czech Republic
    J Agric Food Chem 54:1347-52. 2006
    ..Large yacon intraspecific variation may be useful in future detailed research as a good background for breeding, growing, and utilization in industrial processing...
  7. ncbi request reprint Radical scavenging and anti-lipoperoxidative activities of Smallanthus sonchifolius leaf extracts
    Katerina Valentova
    Palacky University, Faculty of Medicine, Institute of Medical Chemistry and Biochemistry, Hnevotinska 3, CZ 77515 Olomouc, Czech Republic
    J Agric Food Chem 53:5577-82. 2005
    ..15-465.3 microg/mL). These results make yacon leaves a good candidate for use as a food supplement in the prevention of chronic diseases involving oxidative stress...
  8. ncbi request reprint The effect of Smallanthus sonchifolius leaf extracts on rat hepatic metabolism
    K Valentova
    Institute of Medical Chemistry and Biochemistry, Palacky University, Olomouc, Czech Republic
    Cell Biol Toxicol 20:109-20. 2004
    ..The combination of radical scavenging, cytoprotective and anti-hyperglycemic activity predetermine S. sonchifolius leaves for use in prevention and treatment of chronic diseases involving oxidative stress, particularly diabetes...
  9. ncbi request reprint The in vitro biological activity of Lepidium meyenii extracts
    K Valentova
    Institute of Medical Chemistry and Biochemistry, Faculty of Medicine, Palacky University, Olomouc
    Cell Biol Toxicol 22:91-9. 2006
    ..In contrast, a slight cytoprotective effect, probably not mediated by antioxidant capacity, was noted. Maca extracts exhibited estrogenic activity comparably to the effect of silymarin in MCF-7 cells...
  10. ncbi request reprint Antioxidant activity of extracts from the leaves of Smallanthus sonchifolius
    Katerina Valentova
    Institute of Medical Chemistry and Biochemistry, Palacky University, Hnevotinska 3, 77515 Olomouc, Czech Republic
    Eur J Nutr 42:61-6. 2003
    ..The leaves are used in folk medicine as a medicinal tea for hypoglycemia. This paper describes the antioxidant activity of various extracts from S. sonchifolius leaves for their content of phenolic components...
  11. ncbi request reprint Constituents and antimicrobial properties of blue honeysuckle: a novel source for phenolic antioxidants
    Irena Palikova
    Department of Medical Chemistry and Biochemistry, Faculty of Medicine and Dentistry, Palacky University, Hnevotinska 3, 775 15 Olomouc, Czech Republic
    J Agric Food Chem 56:11883-9. 2008
    ..The freeze-dried fruit and its phenolic fraction reduced the biofilm formation and adhesion to the artificial surface of Candida parapsilosis, Staphylococcus epidermidis, Escherichia coli, Enterococcus faecalis, and Streptococcus mutans...
  12. doi request reprint Protectivity of blue honeysuckle extract against oxidative human endothelial cells and rat hepatocyte damage
    Irena Palikova
    Department of Medical Chemistry and Biochemistry, Faculty of Medicine and Dentistry, Palacky University, Hnevotinska 3, 775 15 Olomouc, Czech Republic
    J Agric Food Chem 57:6584-9. 2009
    ..Microsome peroxidation and LDL oxidation inhibition results provide promising perspectives into the prevention of some oxidative stress-associated diseases. Other data are important in in vitro systems but seem to be accidental in vivo...
  13. ncbi request reprint Berry fruits as a source of biologically active compounds: the case of Lonicera caerulea
    Irena Svarcova
    Department of Medical Chemistry and Biochemistry, Faculty of Medicine and Dentistry, Palacky University, Olomouc, Czech Republic
    Biomed Pap Med Fac Univ Palacky Olomouc Czech Repub 151:163-74. 2007
    ..This review deals with the botany and chemical composition of L. caerulea and the biological activity of its main constituents, focusing on the potential health benefits of the berries...