Scientific Reports 3: Article number: 3395; published online: 02 December 2013; updated: 03 August 2015

The Acknowledgements section in this Article is incomplete.

“This work was partially supported by a research grant from the Astellas Foundation for Research on Metabolic Disorders.”

should read:

“This work was partially supported by a research grant from the Astellas Foundation for Research on Metabolic Disorders(C.T.) and by a Grant-in-Aid for the Cooperative Research Project from Joint Usage/Research Center(Joint Usage/Research Center for Science-Based Natural Medicine) Institute of Natural Medicine, University of Toyama in 2011 (C.T., Y.G. and Y-A.L.).”