[1] Xian Jiaotong Univ, Affiliated Hosp 1, Dept Pediat, Xian 710061, Peoples R China
[2] Xian Jiaotong Univ, Coll Med, Dept Human Anat Histol & Embryol, Xian 710061, Peoples R China
[3] Xian Jiaotong Univ, Coll Med, Dept Physiol, Xian 710061, Peoples R China
[4] Univ Calif Berkeley, Dept Mol & Cell Biol, Berkeley, CA 94720 USA
[5] Childrens Hosp Oakland, Res Inst, Nutr Genom Ctr, Oakland, CA 94609 USA
[6] Chinese Acad Sci, Inst Nutr Sci, SIBS, Beijing 100864, Peoples R China