2001 - 2004 PhD-thesis in the German Institute of Human Nutrition in the Department of Biochemistry of Micronutrients. July 2004 - March 2009 Postdoctoral Fellow in the Obesity Research Center, Dept. of Psychiatry, University of Cincinnati, USA. April 2009 – September 2011 Research Assistant Professor in the Obesity Research Center – Metabolic Diseases Institute, Dept. of Internal Medicine Division of Endocrinology, Diabetes and Metabolism, University of Cincinnati, USA. October 2011 - March 2015 Associate Director ‘Institute for Diabetes and Obesity’ and Head of Division ‘Nutrition Biology’, Helmholtz Centre Munich, Munich, Germany. Since April 2015: Head, Research Unit NeuroBiology of Diabetes, Helmholtz Centre Munich, Munich, Germany. Since July 2019: Universitätsprofessor (W3), TUM School of Medicine, Neurobiology of Diabetes, Technische Universität München