title: Calcium absorption measured by stable calcium isotopes ((42)Ca & (44)Ca) among Northern Chinese adolescents with low vitamin D status.
abstract: An adequate calcium intake and vitamin-D status is important for bone mineralization in adolescents. In Northern China, calcium intake and plasma vitamin-D level of adolescents is low due to low consumption of dairy foods and inadequate sunshine exposure. True fractional calcium absorption (TFCA) in Chinese adolescents has never been performed. This study aims to evaluate nutritional adaptation namely, TFCA and urinary calcium excretion among Chinese adolescents in northern China.
authors.affiliation: Department of Orthopaedics & Traumatology, Faculty of Medicine, The Chinese University of Hong Kong, Hong Kong. wtklee@cuhk.edu.hk
authors.forename: Warren T K
authors.initials: WT
authors.lastname: Lee
authors.forename: Jack C Y
authors.initials: JC
authors.lastname: Cheng
authors.forename: Ji
authors.initials: J
authors.lastname: Jiang
authors.forename: Pei
authors.initials: P
authors.lastname: Hu
authors.forename: Xiaopeng
authors.initials: X
authors.lastname: Hu
authors.forename: David C K
authors.initials: DC
authors.lastname: Roberts
mesh_terms: D000293:Adolescent; D002118:Calcium / Q000172:deficiency / Q000502:physiology*; D002127:Calcium Isotopes / Q000097:blood* / Q000652:urine*; D002648:Child; D002681:China / Q000453:epidemiology; D002762:Cholecalciferol / Q000097:blood; D005260:Female; D006801:Humans; D007408:Intestinal Absorption / Q000502:physiology*; D008297:Male; D010865:Pilot Projects; D014808:Vitamin D Deficiency / Q000453:epidemiology / Q000503:physiopathology
chemical_list: D002127:Calcium Isotopes; D002762:Cholecalciferol; D002118:Calcium