About the Authors

Hubert Kolb

hubert.kolb@uni-duesseldorf.de

Affiliation West-German Centre of Diabetes and Health, Verbund Katholischer Kliniken Düsseldorf, Düsseldorf, Germany

Kathrin Lückemeyer

Affiliation Profil Institute for Metabolic Research, Neuss, Germany

Tim Heise

Affiliation Profil Institute for Metabolic Research, Neuss, Germany

Christian Herder

Affiliation Institute for Clinical Diabetology, German Diabetes Center, Leibniz Center for Diabetes Research at Heinrich Heine University, Düsseldorf, Germany

Nanette C. Schloot

Current address: Lilly Deutschland GmbH, Bad Homburg, Germany

Affiliation Institute for Clinical Diabetology, German Diabetes Center, Leibniz Center for Diabetes Research at Heinrich Heine University, Düsseldorf, Germany

Wolfgang Koenig

Affiliation Department of Internal Medicine II - Cardiology, University of Ulm Medical Center, Ulm, Germany

Lutz Heinemann

Affiliation Profil Institute for Metabolic Research, Neuss, Germany

Stephan Martin

Affiliation West-German Centre of Diabetes and Health, Verbund Katholischer Kliniken Düsseldorf, Düsseldorf, Germany

on behalf of the DIATOR Study Group

Membership of the DIATOR Study Group Consortium is provided in the Acknowledgments.

Competing Interests

T. Heise is and L. Heinemann was employed by Profil Institute of Metabolic Research which was contracted to conduct the trial. N.C. Schloot is employed by Lilly Deutschland GmbH. Co-author C. Herder is an Academic Editor with PlOS ONE. The trial was supported by an unrestricted grant from Pfizer Pharma GmbH, Berlin, Germany. There are no patents, products in development or marketed products to declare. This does not alter the authors’ adherence to all the PLoS ONE policies on sharing data and materials.

Author Contributions

Conceived and designed the experiments: HK SM. Performed the experiments: TH CH NCS WK LH SM. Analyzed the data: HK KL. Wrote the paper: HK KL. Conceived and designed the trial: HK SM. Conducted the trial and/or performed laboratory measurements: TH CH NCS LH WK SM. Conceived and performed the current analysis and wrote the paper: HK KL. Data interpretation, revision and final approval: all authors.