Submitted for Publication: December 31, 2011; final revision received December 31, 2011; accepted February 10, 2012.
Published Online: October 22, 2012. doi:10.1001/archgenpsychiatry.2012.543
Author Contributions: Drs Lyoo and Yoon had full access to all of the data in the study and take responsibility for the integrity of the data and the accuracy of the data analysis. They equally contributed to the article.
Financial Disclosure: Dr Lyoo has received research support from Eli Lilly and Company, AstraZeneca, GlaxoSmithKline, and Lundbeck. Dr Renshaw has been a consultant to Roche, Novartis, Kyowa Hakko, and Repligen, and he has received research support from GlaxoSmithKline and Roche.
Funding/Support: This study was supported by grants DK-060754 and DK-084202 from the National Institute of Diabetes and Digestive and Kidney Diseases, National Institutes of Health (Dr Jacobson), grant 2010K000814 from the Brain Research Center of the 21st Century Frontier Research Program (Dr Lyoo), and grant KRF-2008-220-E00021 from the Global Research Network Program, the Korea Research Foundation (Dr Lyoo).
Role of the Sponsors: The funders had no role in the design and conduct of the study; in the collection, analysis, and interpretation of the data; or in the preparation, review, or approval of the manuscript.
Previous Presentation: An earlier version of this study was presented at the 71st Scientific Sessions of the American Diabetes Association; June 27, 2011; San Diego, California.
Additional Contributions: We thank Jooyeon Jamie Im, BA, Han Byul Cho, BS, Sunho Lee, BS, and Hyeonseok S. Jeong, BS, for their assistance.