ANALYSIS OF FIVE KINDS OF TRACE ELEMENTS IN THE HAIR OF UNKNOWN CAUSAL HYPOPHYRENIC CHILDREN IN CRETINISM AREA / 西安交通大学学报(医学版)

ABSTRACT

Five kinds of trace elements (Cu, Zn, Fe, Mn, Pb) in the hair of unknown causal hypophrenic children and normal children in the cretinism area (Cailiang Township, Ankang County, Shaanxi Province) were determined. The results indicate that the content of Mn Pb and the ratio of Cu to Zn in hypophrenic children's hair are both higher than those in the normal children's hair. It is suggested by this experiment that the main causation of hypophrenia in this area may be a lower content of zine, higher content of M auganese and higher Cu/Zn ratio.