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Suboptimal Selenium Supply—A Continuing Problem in Keshan Disease Areas in Heilongjiang Province

机译:硒供应不足–黑龙江省克山病地区的一个持续问题

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This study explores whether the declining prevalence of Keshan disease is associated with increasing selenium levels in Keshan disease areas in Heilongjiang province. Six counties endemic with Keshan disease and three non-endemic counties were selected as study areas. In each county, two townships and in each township one village were chosen in which to survey ten families about head hair, grain, and soil samples and to obtain demographic information. Selenium was measured with hydride generation-atomic fluorescence spectrometry. In each county endemic with Keshan disease, one of the villages was chosen to investigate the prevalence of the disease. We collected 534 head hair samples, 446 staple food samples, and 180 soil samples. The selenium levels of head hair and corn in the endemic counties were significantly lower than those in non-endemic counties. Family demographic information was homologous except for the composition of staple food. More residents in Keshan disease areas preferred flour and corn. The detection rate for latent Keshan disease had a significantly negative correlation with the corn selenium level in six counties endemic with Keshan disease. As the population in this region is still at risk for Keshan disease, selenium surveillance measures should be intensified.
机译:本研究探讨了黑龙江省克山病地区的克山病患病率下降是否与硒水平升高有关。选择了6个克山病地方病县和3个非地方病县作为研究区域。在每个县中,选择了两个乡镇,在每个乡镇中选择了一个村子,对十个家庭的头发,谷物和土壤样品进行了调查,并获得了人口统计信息。用氢化物发生原子荧光光谱法测定硒。在每个克山病地方县中,选择一个村庄调查该病的流行情况。我们收集了534个头发样本,446个主食样本和180个土壤样本。地方病县的头发和玉米中的硒含量明显低于非地方病县。除主食的成分外,家庭人口统计信息是同源的。克山病地区更多的居民偏爱面粉和玉米。六个克山病地方县的潜在克山病检出率与玉米硒水平呈显着负相关。由于该地区的人口仍然有患克山病的风险,因此应加强硒监测措施。

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