2.11. Statistical Analyses
Mathematical analysis of the data and their graphical inter-pretation were realized by Microsoft Excel®, Microsoft Word®and Microsoft PowerPoint®. Software STATISTICA (data analysissoftware system) version 10.0 (Tulsa, Oklahoma, USA) was usedfor data processing. Half-maximal concentrations (IC50) were cal-culated from logarithmic regression of sigmoidal dose-responsecurve.