About the Authors

Jinya Niu

Affiliation Department of Epidemiology and Bio-statistics, Institute of Basic Medical Sciences, Chinese Academy of Medical Sciences/ Peking Union Medical College, Beijing, China

Shivani Sahni

Affiliation Institute for Aging Research, Hebrew SeniorLife, Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, Massachusetts, United States of America

Susu Liao

Affiliation Department of Epidemiology and Bio-statistics, Institute of Basic Medical Sciences, Chinese Academy of Medical Sciences/ Peking Union Medical College, Beijing, China

Katherine L. Tucker

Affiliation Department of Clinical Laboratory and Nutritional Sciences, University of Massachusetts Lowell, Boston, Massachusetts, United States of America

Bess Dawson-Hughes

Affiliation Bone Metabolism Laboratory, Jean Mayer USDA Human Nutrition Research Center on Aging at Tufts University, Boston Massachusetts, United States of America

Xiang Gao

xxg14@psu.edu

Affiliation Department of Nutritional Science, The Pennsylvania State University, University Park, Pennsylvania, United States of America

Competing Interests

The authors have declared that no competing interests exist.

Author Contributions

Conceived and designed the experiments: XG KLT. Performed the experiments: JN KLT XG. Analyzed the data: JN. Contributed reagents/materials/analysis tools: JN SS BDH KLT XG. Wrote the paper: JN KLT XG. Data interpretation: SS SL BDH KLT XG. Critical revision of the manuscript: SS SL BDH KLT XG.