1. German Institute for Human Nutrition Potsdam-Rehbruecke (J.D., H.-G.J.), D-14558 Nuthetal, Germany
2. German Diabetes Center (A.C., H.-G.J., H.A.-H.), Leibniz Center for Diabetes Research at the Heinrich-Heine-University, Düsseldorf, Germany
3. Institute for Clinical Biochemistry and Pathobiochemistry, German Diabetes Center, Leibniz Center for Diabetes Research at the Heinrich-Heine-University Düsseldorf (A.C., H.A.-H.), D-40225 Düsseldorf, Germany
4. Max Planck Institute for Molecular Genetics (T.N., H.H.), D-14195 Berlin, Germany
5. Centre for Genomic Regulation, Universitat Pompeu Fabra (H.H.), E-08003 Barcelona, Spain
6. Department of Molecular Medicine and Surgery, and Department of Physiology and Pharmacology (J.R.Z.), Karolinska Institutet, SE-17176 Stockholm, Sweden