环境及居民体内钼含量与胃癌的相关性

World Chinese Journal of Digestology(2011)

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Abstract
目的:研究微量元素钼与胃癌的关系.方法:采集胃癌高、低发区土壤、底泥、地表水、饮用水、水稻、健康人群的头发、血清和尿液样品,采用等离子体原子发射光谱法(AES)和极普法(POL)等方法检测样品中钼含量,采用非参数秩和检验对数据进行统计分析.结果:胃癌高、低发区环境及居民体内钼含量存在差异,低发区土壤、底泥、水稻中的钼含量中位数分别为2.57mg/kg、3.53mg/kg和1.04mg/kg,均显著高于高发区的0.50mg/kg、0.71mg/kg和0.54mg/kg(均P<0.01),土壤和底泥样品检测值中位数是高发区的近5倍,低发区常住居民的头发、血清和尿液中钼含量分别为0.11mg/kg、8.42μg/L和0.13mgL,均显著高于高发区的0.05mg/kg、3.17μg/L和0.04mg/L(均P<0.001).结论:微量元素钼通过食物链进入人体,胃癌高发可能与人体摄入钼不足有关.
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Key words
Environment,Molybdenum,Gastric cancer
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