title: [Study on efficiency of iron utilization in prepubertal female children].
abstract: OBJECTIVE
  To investigate the iron utilization of prepubertal female children.
  
  
  METHODS
  27 female children from 10 to 12 years old were selected and given 57Fe as a tracer, in conventional diet mode, the blood samples in 1 day before test, 14 days and 28 days after tracer given were taken, and were conducted into red blood cell sample. The iron content and changes of isotope abundance in samples were analyzed and combined with blood volume to get the utilization of iron in RBC.
  
  
  RESULTS
  The erythrocyte incorporation rate( of dose) in 14 days and 28 days were (19.84 +/- 0.53)% and (18.75 +/- 0.40)% (P > 0.05). The erythrocyte incorporation rate( of absorption) were (93.49 +/- 2.27)% and (88.73 +/- 0.43)% respectively, and there was a significantly difference (P < 0.05).
  
  
  CONCLUSIONS
  It is feasible and accurate to evaluate the iron utilization using erythrocyte incorporation rate, which is tested by single stable isotopes tracer technique. Prepubertal female children has a higher utilization of iron, and the 14 days after tracer given is a effective entry point in erythrocyte incorporation study.
authors: Yu
authors: Y
authors: Zhang
authors: Lichen
authors: L
authors: Yang
authors: Jianhua
authors: J
authors: Piao
authors: Zhenwu
authors: Z
authors: Huang
authors: Hong
authors: H
authors: Zhu
authors: Xiaoguang
authors: X
authors: Yang
mesh_terms: D002648:Child; D004912:Erythrocytes; D005260:Female; D006801:Humans; D007501:Iron / Q000378:metabolism*; D007503:Iron Isotopes
chemical_list: D007503:Iron Isotopes; D007501:Iron