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- W2355443406 abstract "During the recent decade there has been increasing concern at the levels of industrial and agricultural contaminants in the aquatic environment and the possible effect of such pollution on both human health and the well being of animal populations.Since some of these contaminants which are called endocrine disrupters have oestrogenic activities and can mimic the role of oestrogen and disturb the reproductive function of animals and human beings,more and more efforts have been made to elucidate the potential effects of these contaminants of animals especially aquatic animals.In this study,several chloroaromatic hydrocarbons chlorobenzene,1,3 dichlorobenzene,1,4 dichlorobenzene and p chloro methylbenzene,which are generally presented in industrial effluents,were selected to be studied under laboratory conditions for their effects of plasma sex steroids (testosterone and 17β estradiol)in carp (Carassius auratus) to determine whether these chemicals may act as endocrine disrupters and cause threats to reproduction of aquatic species.The 4 chloroaromatic hydrocarbons were injected into carp at different doses separately,and after 2 weeks,carp plasma was collected,centrifuged and extracted by dichloromethane,and sex steroids levels were detected using radioimmunology assay (RIA).The results showed that in comparison with the mean concentration of testosterone which was (4?072.582±227.44) pg/mL in control groups,the concentrations of testosterone in chemical treated groups significantly increased ( P 0.05 ),and in contrast with the effect on testosterone levels,nearly no significant differences exist between concentrations of 17β estradiol in chemical treated fish and the relative 17β estradiol level of (190.66±20.16)pg/mL in control groups ( P 0.05).These results suggested that although these 4 chloroaromatic hydrocarbons may have no obvious effects on the 17β estradiol level in aquatic animals such as fish,they contribute to the disturbance of testosterone levels in fish and may cause great threats to the reproduction of fish,and thus may have some adverse effect on the balance of aquatic ecosystems." @default.
- W2355443406 created "2016-06-24" @default.
- W2355443406 creator A5040284754 @default.
- W2355443406 date "2000-01-01" @default.
- W2355443406 modified "2023-09-28" @default.
- W2355443406 title "EFFECTS OF SEVERAL CHLOROAROMATIC HYDROCARBONS ON PLASMA SEX STEROIDS IN CARASSIUS AURATUS" @default.
- W2355443406 hasPublicationYear "2000" @default.
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