About the Authors

Peter Weyrich

Affiliation Division of Endocrinology, Diabetology, Vascular Disease, Nephrology, Clinical Chemistry, Department of Internal Medicine, Paul-Langerhans-Institute Tübingen, University of Tübingen, Tübingen, Germany

Harald Staiger

harald.staiger@med.uni-tuebingen.de

Affiliation Division of Endocrinology, Diabetology, Vascular Disease, Nephrology, Clinical Chemistry, Department of Internal Medicine, Paul-Langerhans-Institute Tübingen, University of Tübingen, Tübingen, Germany

Alena Stančáková

Affiliation Department of Medicine, Kuopio University Hospital, Kuopio, Finland

Fausto Machicao

Affiliation Division of Endocrinology, Diabetology, Vascular Disease, Nephrology, Clinical Chemistry, Department of Internal Medicine, Paul-Langerhans-Institute Tübingen, University of Tübingen, Tübingen, Germany

Jürgen Machann

Affiliation Section on Experimental Radiology, University of Tübingen, Germany

Fritz Schick

Affiliation Section on Experimental Radiology, University of Tübingen, Germany

Norbert Stefan

Affiliation Division of Endocrinology, Diabetology, Vascular Disease, Nephrology, Clinical Chemistry, Department of Internal Medicine, Paul-Langerhans-Institute Tübingen, University of Tübingen, Tübingen, Germany

Johanna Kuusisto

Affiliation Department of Medicine, Kuopio University Hospital, Kuopio, Finland

Markku Laakso

Affiliation Department of Medicine, Kuopio University Hospital, Kuopio, Finland

Silke Schäfer

Affiliation Division of Endocrinology, Diabetology, Vascular Disease, Nephrology, Clinical Chemistry, Department of Internal Medicine, Paul-Langerhans-Institute Tübingen, University of Tübingen, Tübingen, Germany

Andreas Fritsche

Affiliation Division of Endocrinology, Diabetology, Vascular Disease, Nephrology, Clinical Chemistry, Department of Internal Medicine, Paul-Langerhans-Institute Tübingen, University of Tübingen, Tübingen, Germany

Hans-Ulrich Häring

Affiliation Division of Endocrinology, Diabetology, Vascular Disease, Nephrology, Clinical Chemistry, Department of Internal Medicine, Paul-Langerhans-Institute Tübingen, University of Tübingen, Tübingen, Germany

Competing Interests

The authors have declared that no competing interests exist.

Author Contributions

Conceived and designed the experiments: PW NS ML AF HUH. Performed the experiments: FM JM SAS. Analyzed the data: PW HS AS JK AF. Contributed reagents/materials/analysis tools: FM JM FS ML HUH. Wrote the paper: PW. Revised/edited the manuscript: HS AS FS NS JK ML SAS AF HUH. Contributed to discussion: HS AS FM JM FS NS JK ML SAS AF HUH.