检索规则说明:AND代表“并且”;OR代表“或者”;NOT代表“不包含”;(注意必须大写,运算符两边需空一格)
检 索 范 例 :范例一: (K=图书馆学 OR K=情报学) AND A=范并思 范例二:J=计算机应用与软件 AND (U=C++ OR U=Basic) NOT M=Visual
作 者:张真真[1] 张科利[1] 武继磊[2] 陈功[2] 宋新民[2] 郑晓瑛[2]
机构地区:[1]地表过程与资源生态国家重点实验室北京师范大学地理学与遥感科学学院,北京100875 [2]北京大学人口研究所,北京100871
出 处:《广东微量元素科学》2007年第8期8-12,共5页Trace Elements Science
基 金:国家重点基础研究发展规划项目(2001CB510305);国家人口和计划生育委员会出生缺陷干预工程(计生科[2000]13号);教育部科学技术研究重点项目(02185)
摘 要:为了解出生缺陷高发区地理环境因素的异常特征,给出生缺陷的预防性干预提供科学依据,按照"无锡市出生缺陷病例/育龄妇女人口图"确定无锡市惠山区和锡山区为出生缺陷高发区,宜兴市为对照区。采用电感耦合等离子体原子发射光谱仪对采集的土壤、水、粮食、头发等515个样品进行了砷等17种元素的测定,利用SPSS 11.0软件对数据进行了非参数检验和多元线性回归分析。结果表明,无锡与山西出生缺陷高发区患者发样中钒含量均显著偏高;两个地区得到的回归方程中存在很多重叠元素,尤其是镁和钼几乎存在于每个方程中。可见钒含量显著偏高可能是导致出生缺陷发生的重要因素;镁和钼含量异常以及它们之间或与其它元素之间存在的协同或拮抗作用可能对出生缺陷的发生起到关键作用。To find the chemical elements with abnormal content in high prevalence areas of birth defects and provide scientific basis for preventing birth defects, Huishan and Xishan region of Wuxi were selected as target interest areas and Yixing city as the control area. 515 samples such as soil, water, rice and hair were collected from these areas. The content of 17 elements was determined by ICP - AES. The obtained data were analyzed with nonparametric tests and stepwise regression. The results showed that the content of vanadium of patients' hair in high prevalence areas was significantly higher than that of the healthy people in the control area both in Wuxi city and Shanxi province. Several chemical elements entered the regression equation in Wuxi city were the same as those in Shanxi province. Especially magnesium and molybdenum almost existed in each equation. It concludes maybe the high content of vanadium induces the occurrence of birth defects, and the abnormal content of magnesium and effects among the elements may lead to the birth defects. molybdenum and the antagonistic and synergistic
正在载入数据...
正在载入数据...
正在载入数据...
正在载入数据...
正在载入数据...
正在载入数据...
正在载入数据...
正在链接到云南高校图书馆文献保障联盟下载...
云南高校图书馆联盟文献共享服务平台 版权所有©
您的IP:216.73.216.202