^aDepartment of Internal Medicine II, University of Cologne, Kerpener Street 62, 50937 Cologne, Germany

^bMedical Faculty, Clinical Pharmacology, University of Bonn, Bonn, Germany

^cDepartment of Clinical Nutrition, University of Kuopio and Kuopio University Hospital, Kuopio, Finland

^dMedical Policlinic, University of Bonn, Bonn, Germany

^eMRC Clinical Sciences Centre, Hammersmith Hospital, London, United Kingdom

^fLeibniz Institute for Arteriosclerosis Research, University of Münster, Münster, Germany

^gDivision of Endocrinology, Diabetes and Metabolism, Department of Medicine, Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, MA, USA

^hDepartment of Human Biology, Maastricht University, Maastricht, The Netherlands