Funding for this research was provided by:
USDA/ARS (No. 58-1950-0-014)
Japan Society for the Promotion of Science (995900)
Received: 7 September 2017
Accepted: 29 January 2018
First Online: 6 February 2018
Ethics approval and consent to participate
: All conditions and handling of the animals in this study were reviewed and approved by the animal care and use committee of the Jean Mayer USDA Human Nutrition Research Center on Aging (HNRCA) at Tufts University and conducted according to the NIH guidelines for the care and use of laboratory animals.
: Not applicable.
: The authors declare that they have no competing interests.
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