1. International Clinical Research Center-Center of Biomolecular and Cell Engineering, St. Anne's University Hospital Brno, 656 91 Brno, Czech Republic
2. Institute of Biophysics, Academy of Sciences of the Czech Republic, 612 65 Brno, Czech Republic
3. Department of Evolutionary Biology, University of Ferrara, 44100 Ferrara, Italy
4. Department of Food and Nutrition, Kyung Hee University, Seoul 130-701, Republic of Korea