About the Authors

Kirsi H. Pietiläinen

Affiliations Obesity Research Unit, Department of Psychiatry, Helsinki University Central Hospital, Helsinki, Finland, Department of Medicine, Division of Diabetes, Helsinki University Central Hospital, Helsinki, Finland, Finnish Twin Cohort Study, Department of Public Health, University of Helsinki, Helsinki, Finland

Marko Sysi-Aho

Affiliation VTT Technical Research Centre of Finland, Espoo, Finland

Aila Rissanen

Affiliation Obesity Research Unit, Department of Psychiatry, Helsinki University Central Hospital, Helsinki, Finland

Tuulikki Seppänen-Laakso

Affiliation VTT Technical Research Centre of Finland, Espoo, Finland

Hannele Yki-Järvinen

Affiliation Department of Medicine, Division of Diabetes, Helsinki University Central Hospital, Helsinki, Finland

Jaakko Kaprio

Affiliations Finnish Twin Cohort Study, Department of Public Health, University of Helsinki, Helsinki, Finland, Department of Mental Health and Alcohol Research, National Public Health Institute, Helsinki, Finland

Matej Orešič

To whom correspondence should be addressed. E-mail: matej.oresic@vtt.fi

Affiliation VTT Technical Research Centre of Finland, Espoo, Finland

Competing Interests

The authors have declared that no competing interests exist.

Author Contributions

Conceived and designed the experiments: JK AR MO KP HY. Performed the experiments: TS. Analyzed the data: MO MS KP HY. Contributed reagents/materials/analysis tools: JK MO HY. Wrote the paper: MO KP.