About the Authors

Katarzyna Linder

Contributed equally to this work with: Katarzyna Linder, Robert Wagner

Affiliation Department of Internal Medicine, Division of Endocrinology, Diabetology, Nephrology, Vascular Disease and Clinical Chemistry, Eberhard Karls University Tübingen, Member of the German Centre for Diabetes Research, Tübingen, Germany

Robert Wagner

Contributed equally to this work with: Katarzyna Linder, Robert Wagner

Affiliation Department of Internal Medicine, Division of Endocrinology, Diabetology, Nephrology, Vascular Disease and Clinical Chemistry, Eberhard Karls University Tübingen, Member of the German Centre for Diabetes Research, Tübingen, Germany

Erifili Hatziagelaki

Affiliation 2nd Department of Internal Medicine, Research Institute and Diabetes Center, Athens University Medical School, “Attikon” University Hospital, Athens, Greece

Caroline Ketterer

Affiliation Department of Internal Medicine, Division of Endocrinology, Diabetology, Nephrology, Vascular Disease and Clinical Chemistry, Eberhard Karls University Tübingen, Member of the German Centre for Diabetes Research, Tübingen, Germany

Martin Heni

Affiliation Department of Internal Medicine, Division of Endocrinology, Diabetology, Nephrology, Vascular Disease and Clinical Chemistry, Eberhard Karls University Tübingen, Member of the German Centre for Diabetes Research, Tübingen, Germany

Fausto Machicao

Affiliation Department of Internal Medicine, Division of Endocrinology, Diabetology, Nephrology, Vascular Disease and Clinical Chemistry, Eberhard Karls University Tübingen, Member of the German Centre for Diabetes Research, Tübingen, Germany

Norbert Stefan

Affiliation Department of Internal Medicine, Division of Endocrinology, Diabetology, Nephrology, Vascular Disease and Clinical Chemistry, Eberhard Karls University Tübingen, Member of the German Centre for Diabetes Research, Tübingen, Germany

Harald Staiger

Affiliation Department of Internal Medicine, Division of Endocrinology, Diabetology, Nephrology, Vascular Disease and Clinical Chemistry, Eberhard Karls University Tübingen, Member of the German Centre for Diabetes Research, Tübingen, Germany

Hans-Ulrich Häring

Affiliation Department of Internal Medicine, Division of Endocrinology, Diabetology, Nephrology, Vascular Disease and Clinical Chemistry, Eberhard Karls University Tübingen, Member of the German Centre for Diabetes Research, Tübingen, Germany

Andreas Fritsche

Andreas.Fritsche@med.uni-tuebingen.de

Affiliations Department of Internal Medicine, Division of Endocrinology, Diabetology, Nephrology, Vascular Disease and Clinical Chemistry, Eberhard Karls University Tübingen, Member of the German Centre for Diabetes Research, Tübingen, Germany, Department of Internal Medicine, Division of Nutritional and Preventive Medicine, University Hospital Tübingen, Tübingen, Germany

Competing Interests

The authors have declared that no competing interests exist.

Author Contributions

Conceived and designed the experiments: HUH NS AF HS. Performed the experiments: CK MH KL RW. Analyzed the data: KL RW EH HS. Contributed reagents/materials/analysis tools: FM. Wrote the paper: KL RW AF. Revised the manuscript: EH CK MH FM. Editing of the manuscript: HUH HS NS.