1. Institute of Molecular Biology and Medicinal Chemistry, Otto-von-Guericke University Magdeburg, D-39120 Magdeburg, Germany, Central Bioanalytics, Center for Molecular Medicine Cologne, University Köln, D-50931 Köln, Germany, Institute of Pathology, Otto-von-Guericke University Magdeburg, D-39120 Magdeburg, Germany, and Department of Surgery, Otto-von-Guericke University Magdeburg, D-39120 Magdeburg, Germany