1. Division of Vascular Endothelium and Microcirculation (A.H., C.B., J.M., F.E., H.M., Technische Universität Dresden, 01307 Dresden, Germany
2. Division of Clinical Neurochemistry (M.P., G.E.), Technische Universität Dresden, 01307 Dresden, Germany
3. University Hospital Carl Gustav Carus Dresden, and Institute of Physiology (M.M., A.D.), Technische Universität Dresden, 01307 Dresden, Germany
4. Department of Cardiac Surgery (A.J.), Herzzentrum Dresden, Medical Faculty, Technische Universität Dresden, 01307 Dresden, Germany
5. Department of Cardio Metabolic Diseases (N.F.B., S.M.W.), Boehringer Ingelheim Pharmaceuticals Inc, Ridgefield, Connecticut 06877
6. Department of Cardio Metabolic Diseases (J.H., R.S.), Boehringer Ingelheim Pharma GmbH and Co KG, 88400 Biberach, Germany
7. Institute of Clinical Chemistry and Laboratory Medicine, Department of Medicine III (G.E., S.R.B.), Technische Universität Dresden, 01307 Dresden, Germany
8. Department of Endocrinology and Diabetes (S.R.B.), Division of Diabetes and Nutritional Sciences, Rayne Institute, Faculty of Life Sciences and Medicine, Kings College London, London, SE5 9PJ, United Kingdom