Document Detail


Validation of dietary intake of dichlorodiphenyltrichloroethane and metabolites in two populations from Beijing and Shenyang, China based on the residuals in human milk.
MedLine Citation:
PMID:  18983097     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
This paper presents the results of an investigation on association between dietary intakes and human milk concentrations of dichlorodiphenyltrichloroethane and metabolites (DDTs) of two populations from Beijing and Shenyang, China. We analyzed human milk samples from 76 women and 287 composite food samples covering major food categories for concentrations of DDTs. We also collected information on food consumptions and calculated dietary intakes of DDTs of the participants on individual basis. The median values of the measured DDTs in human milk were 125 ng/g lipid and 132 ng/g lipid for the samples from Beijing and Shenyang, respectively. The mean (+/-standard deviation) daily dietary intakes of DDTs by the two groups were 32.0 +/- 14.2 ng/kg day and 27.9 +/- 11.3 ng/kg day, respectively. The temporal trends of decreasing in DDTs and increasing in DDE/DDT ratio suggested that the residuals were primarily from historical application. We found a significant correlation between human milk concentration and daily dietary intake of DDTs, while the dietary intake could explain 22% of the variation in the DDTs in human milk. In addition to dietary exposure, we also found that maternal body mass index (body weight divided by the squared height), body weight, body height, and mother's age contributed significantly to the variation of DDTs in human milk after intake normalization. The result of a probabilistic risk assessment indicated that the exposure of infants to DDTs through breast feeding would be a public health concern for years to come, although breast feeding is still recommended.
Authors:
Shu Tao; Yanxin Yu; Wenxin Liu; Xuejun Wang; Jun Cao; Bengang Li; Xiaoxia Lu; Ming H Wong
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Publication Detail:
Type:  Journal Article; Research Support, Non-U.S. Gov't    
Journal Detail:
Title:  Environmental science & technology     Volume:  42     ISSN:  0013-936X     ISO Abbreviation:  Environ. Sci. Technol.     Publication Date:  2008 Oct 
Date Detail:
Created Date:  2008-11-05     Completed Date:  2008-11-24     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  0213155     Medline TA:  Environ Sci Technol     Country:  United States    
Other Details:
Languages:  eng     Pagination:  7709-14     Citation Subset:  IM    
Affiliation:
Laboratory for Earth Surface Processes, College of Urban and Environmental Sciences, Peking University, Beijing 100871, China. taos@urban.pku.edu.cn
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MeSH Terms
Descriptor/Qualifier:
Adult
Breast Feeding
China
DDT / analogs & derivatives*,  analysis*
Diet*
Feeding Behavior*
Female
Humans
Lipids / analysis
Milk, Human / chemistry*
Multivariate Analysis
Pesticide Residues / analysis*
Pregnancy
Regression Analysis
Reproducibility of Results
Time Factors
Chemical
Reg. No./Substance:
0/Lipids; 0/Pesticide Residues; 50-29-3/DDT

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine


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