1. School of Medical Biology, South Ural State University, Chelyabinsk, Russia;
2. Institute of Molecular Physiology and Genetics, Centre for Biosciences, Slovak Academy of Sciences, Bratislava, Slovakia;
3. Institute of Experimental Endocrinology, Biomedical Research Center, Slovak Academy of Sciences, Bratislava, Slovakia;
4. Faculty of Natural Sciences, University of Saints Cyril and Methodius, Trnava, Slovakia