RESUMO
Se load tests were carried out by administering 150?g Se as 0.1% sodium selenite 0. 5ml in 5 groups of male children (7～13 years) including 2 groups from different Kashin-Beck disease affected areas, 2 groups from non-endemic areas and another from an endemic area supplementing Se-fortilled salt for 4 years. The results showed that Se urinary excretion amounts, 6,12 and 24 hour accumulated rates and 24 hour net excretion amounts as well as rates after Se administration were similar between 2 endemic groups, but all far lower than those of 2 non-endemic groups; that urinary Se excretion peak in endemic groups delayed as comparied with non-endemic groups and that the above—mentioned parameters in endemic group supplementing Se restored to the levels of non-endemic groups. All those findings suggested that the children from Kashin-Beck disease affected areas might be in a Se deficiency status and Se supplementation to the endemic children consuming Se fortified salt significantly improve their Se deficiency status.
