1. Pharmaceutical Biology, Department of Pharmacy, Saarland University, Campus C2.3, D-66123 Saarbrücken, Germany
2. Marine Biology, Institute of Biological Sciences, University of Rostock, D-18059 Rostock, Germany
3. Biosynthesis of Active Substances, Institute of Pharmacy, Martin Luther University Halle-Wittenberg, D-06120 Halle, Germany
4. Institute of Sports and Preventive Medicine, Saarland University, D-66123 Saarbrücken, Germany
5. Experimental Pharmacology for Natural Sciences, Institute of Pharmacy, Martin Luther University Halle-Wittenberg, D-06120 Halle, Germany