Selenium status of children in Kashin–Beck disease endemic areas in Shaanxi, China: assessment with mercury

被引：0
作者：
Buyun Du
Jun Zhou
Jing Zhou
机构：
[1] Chinese Academy of Sciences,Key Laboratory of Soil Environment and Pollution Remediation, Institute of Soil Science
[2] Chinese Academy of Sciences,State Key Laboratory of Environmental Geochemistry, Institute of Geochemistry
[3] Chinese Academy of Sciences,National Engineering Research and Technology Center for Red Soil Improvement, Red Soil Ecological Experiment Station
[4] University of Chinese Academy of Sciences,Institute of Biology Resource
[5] Jiangxi Academy of Sciences,undefined
来源：
Environmental Geochemistry and Health | 2018年 / 40卷
关键词：
Endemic diseases; Hair samples; Staple food; Probable daily intake; Se–Hg interactions;
D O I：
暂无
中图分类号：
学科分类号：
摘要：
The causes of Kashin–Beck disease (KBD) in children are multifactorial, and particular consideration has been given to childhood selenium (Se) deficiency. In this study, dietary intake of Se and mercury (Hg) was determined at KBD areas to investigate the Se status and risks. Therefore, total Hg and Se levels were investigated in scalp hair samples and in daily intake food samples of 150 schoolchildren in Yongshou County of Shaanxi, China. The results showed that the average concentration of Se in children’s hair has risen to 302 ng g−1 and significantly increased compared to the data reported decades ago. Children at KBD endemic areas likely have improved Se status due to the Se supplementation in food at recent decades. However, all the children in the study areas still showed lower Se status compared to those in other non-KBD areas of China. The probable daily intake of Se in the study areas was still lower after stopping Se supplementation in food at KBD areas, which is 17.96 μg day−1. Food produced locally cannot satisfy the lowest demand for Se nutrition for local residents. If the interactions of Se–Hg detoxification are considered, Hg intake from food exacerbates Se deficiency at the KBD areas.
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页码：903 / 913
页数：10
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