Blood lead levels and cumulative blood lead index (CBLI) as predictors of late neurodevelopment in lead poisoned children

被引:25
作者
Nie, Linda H. [1 ]
Wright, Robert O. [2 ,3 ]
Bellinger, David C. [3 ]
Hussain, Javed [3 ]
Amarasiriwardena, Chitra [2 ]
Chettle, David R. [4 ]
Pejovic-Milic, Ana [5 ]
Woolf, Alan [3 ]
Shannon, Michael [3 ]
机构
[1] Purdue Univ, Sch Hlth Sci, W Lafayette, IN 47907 USA
[2] Harvard Univ, Sch Publ Hlth, Boston, MA 02115 USA
[3] Childrens Hosp, Boston, MA 02115 USA
[4] McMaster Univ, Hamilton, ON, Canada
[5] Ryerson Univ, Toronto, ON, Canada
关键词
Heavy metal toxicity; neurological disease; environmental pollution/ecotoxicology; X-RAY-FLUORESCENCE; BONE LEAD; INTELLECTUAL FUNCTION; ENDOGENOUS RELEASE; KINETIC-MODEL; EXPOSURE; ADULTS; CHILDHOOD;
D O I
10.3109/1354750X.2011.604133
中图分类号
Q81 [生物工程学(生物技术)]; Q93 [微生物学];
学科分类号
071005 ; 0836 ; 090102 ; 100705 ;
摘要
Objective: To find the best lead exposure assessment marker for children. Methods: We recruited 11 children, calculated a cumulative blood lead index (CBLI) for the children, measured their concurrent BLL, assessed their development, and measured their bone lead level. Results: Nine of 11 children had clinically significant neurodevelopment problems. CBLI and current blood lead level, but not the peak lead level, were significantly or marginally negatively associated with the full-scale IQ score. Conclusion: Lead exposure at younger age significantly impacts a child's later neurodevelopment. CBLI may be a better predictor of neurodevelopment than are current or peak blood lead levels.
引用
收藏
页码:517 / 524
页数:8
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