Frank Buttgereit, M.D. is a senior consultant and Deputy Head of the Department of Rheumatology and Clinical Immunology at the Charité University Medicine hospital in Berlin, Germany. He also directs a liaison research group at the Deutsche Rheumaforschungszentrum. Dr. Buttgereit studied medicine at the Charité and Humboldt University Berlin, where he became a specialist in Internal Medicine in 1996 and Associate Professor/Senior Registrar in 1997. He has held the position of Professor of Rheumatology at the Charité since 2002. Dr Buttgereit’s research interests comprise clinical aspects of glucocorticoids in the treatment of rheumatic diseases, including chronotherapy, glucocorticoid mechanisms of action and the bioenergetics of immune functions.