About the Authors

Tina Sartorius

tina.sartorius@med.uni-tuebingen.de

Affiliations Department of Internal Medicine, Division of Endocrinology, Diabetology, Vascular Disease, Nephrology and Clinical Chemistry, University of Tuebingen, Tuebingen, Germany, German Center for Diabetes Research (DZD), Tuebingen, Germany, Institute for Diabetes Research and Metabolic Diseases of the Helmholtz Center Munich at the University of Tuebingen (IDM), Tuebingen, Germany

Anita M. Hennige

Affiliations Department of Internal Medicine, Division of Endocrinology, Diabetology, Vascular Disease, Nephrology and Clinical Chemistry, University of Tuebingen, Tuebingen, Germany, German Center for Diabetes Research (DZD), Tuebingen, Germany, Institute for Diabetes Research and Metabolic Diseases of the Helmholtz Center Munich at the University of Tuebingen (IDM), Tuebingen, Germany

Andreas Fritsche

Affiliations Department of Internal Medicine, Division of Endocrinology, Diabetology, Vascular Disease, Nephrology and Clinical Chemistry, University of Tuebingen, Tuebingen, Germany, German Center for Diabetes Research (DZD), Tuebingen, Germany, Institute for Diabetes Research and Metabolic Diseases of the Helmholtz Center Munich at the University of Tuebingen (IDM), Tuebingen, Germany

Hans-Ulrich Häring

Affiliations Department of Internal Medicine, Division of Endocrinology, Diabetology, Vascular Disease, Nephrology and Clinical Chemistry, University of Tuebingen, Tuebingen, Germany, German Center for Diabetes Research (DZD), Tuebingen, Germany, Institute for Diabetes Research and Metabolic Diseases of the Helmholtz Center Munich at the University of Tuebingen (IDM), Tuebingen, Germany

Competing Interests

H.U. Häring received grant support and honoraria for speaking engagements and consulting fees for participating on scientific boards of Novo Nordisk. A.M. Hennige received honoraria for speaking engagements and consulting fees from Novo Nordisk between 2003 and 2008, and has been an employee of Boehringer Ingelheim Pharma GmbH & Co.KG since 2013. This does not alter our adherence to PLOS ONE policies on sharing data and materials.

Author Contributions

Conceived and designed the experiments: TS AMH. Performed the experiments: TS. Analyzed the data: TS AMH. Wrote the paper: TS AMH AF HUH.