Abstract：
:Dechlorane Plus (DP) and its dechlorinated product, anti-Cl₁₁-DP, were measured in serum of 70 occupationally exposed workers in an e-waste recycling region and 13 residents of an urban area in South China. The DP levels were significantly higher in the workers (22-2200 ng/g with median of 150 ng/g lipid) than in the urban residents (2.7-91 ng/g with median of 4.6 ng/g lipid). The DP concentrations in females were found to be associated with their age but such relation was not found for males. Significant differences in DP levels and DP isomer composition were found between genders. The females had remarkably higher DP levels and f(anti) values (fraction of anti-DP to total DPs) in serum than the males. Anti-Cl₁₁-DP was significantly correlated with anti-DP for both genders but with different slope of regression line. The ratios of anti-Cl₁₁-DP to anti-DP (mean of 0.017) in males were significantly higher than those (mean of 0.010) in females. Combining with the lower f(anti) values in males, it is likely that males have higher metabolic potential for DPs than females which resulted in the lower DP loading in serum. However, the different patterns of selective uptake and/or excretion of different compounds between genders cannot be eliminated as a possible reason for the observed gender differences. This study is the first to report on the gender difference in DP accumulation in human, and its mechanism is worth further investigation.
journal_name
Environ Intjournal_title
Environment internationalauthors
Yan X,Zheng J,Chen KH,Yang J,Luo XJ,Yu LH,Chen SJ,Mai BX,Yang ZYdoi
10.1016/j.envint.2012.08.011subject
Has Abstractpub_date
2012-11-15 00:00:00pages
31-7eissn
0160-4120issn
1873-6750pii
S0160-4120(12)00185-7journal_volume
49pub_type
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