Document Detail

Distribution of endocrine-disrupting PCBs in hard roes of loaches and their potential ecological effects in Weishanhu Lake, China.
MedLine Citation:
PMID:  14971471     Owner:  NLM     Status:  MEDLINE    
Preliminary study is carried out on the endocrine-disrupting organic chemicals of polychlorinated biphenyls( PCBs: PCB-28, 60, 104, 153, 190) in hard roes of loaches( Misgurnus anguillicaudatas) in Weishanhu Lake, China. Results showed that the hard roes of loaches collected from the areas near the influx(such as Pengkou T-PCB = 0.243 microg/g) or efflux(such as Hanzhuang T-PCB = 0.221 microg/g) are characterized by higher PCB contents, about 4 times that from the central lake(T-PCB = 0.066 microg/g), suggesting great difference between their pollutions. The PCB distributions indicated that PCB congeners with more chlorine are more easily accumulated in roes of loaches. The microscopic characteristics reveal that the PCB contents at present cannot lead the roes of loaches to be abnormal. However, the roes with higher PCBs in Pengkou and Hanzhuang are obviously bigger than those with lower PCBs(T-PCBs < or = 0.176 microg/g) in other localities. It is suggested that PCBs have a stronger estrogenic activity on the roes of loaches, and the phenomenon is likely premonitory for the abnormal development of the hard roes.
Shao-ping Kuang
Publication Detail:
Type:  Journal Article    
Journal Detail:
Title:  Journal of environmental sciences (China)     Volume:  16     ISSN:  1001-0742     ISO Abbreviation:  J Environ Sci (China)     Publication Date:  2004  
Date Detail:
Created Date:  2004-02-19     Completed Date:  2004-05-14     Revised Date:  2008-02-08    
Medline Journal Info:
Nlm Unique ID:  100967627     Medline TA:  J Environ Sci (China)     Country:  Netherlands    
Other Details:
Languages:  eng     Pagination:  149-52     Citation Subset:  IM    
College of Chemistry and Molecular Technology, Qingdao University of Science and Technology, Qingdao 266042, China.
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MeSH Terms
Body Constitution
Cypriniformes / physiology*
Endocrine System / drug effects
Environmental Pollutants / pharmacokinetics*,  poisoning*
Estrogens / pharmacology
Ovum / chemistry
Polychlorinated Biphenyls / pharmacokinetics*,  poisoning*
Reg. No./Substance:
0/Environmental Pollutants; 0/Estrogens; 0/Polychlorinated Biphenyls

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

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