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Iranian Journal of Parasitology، جلد ۸، شماره ۴، صفحات ۵۵۲-۵۵۸
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عنوان انگلیسی Bioaccumulation of Some Heavy Metals in the Liver Flukes Fasciola hepatica and F. gigantica.
چکیده انگلیسی مقاله Background: Heavy metals tend to bioaccumulate in living organisms, and their accumulation has been a major concern. As mammals are known to excrete heavy metals via their bile, it seems to be very promising to analyse metal burdens of par-asites that infect the biliary tree such as liver flukes of the genus Fasciola . The pre-sent study was carried out to evaluate F. hepatica and F. gigantica as bioaccumulators of heavy metals, and to estimate their use as sensitive markers of environmental pollution with heavy metals. Methods: A total of 36 slaughtered buffaloes (26 infected and 10 controls) col-lected from the slaughter-house of Tanta City, Egypt were used. Samples of muscle and liver tissues were taken from each buffalo. A total of 44 adult Fasciola flukes were collected from the 26 infected buffaloes. Quantification of some heavy metals (Cd, Cr, Cu, Pb and Zn) in samples was carried out using electrothermal atomic absorption spectrometry. Results: Results revealed different concentrations of heavy metals in different host tissues. The adult flukes were classified into F. hepatica (n = 25) and F. gigantica (n = 19). The bio-concentration factor (BCF) of Cr was significantly higher in F. hepatica ( P = 0.0465) while BCF of Zn was significantly higher in F. gigantica ( P = 0.0189). A comparative study between the two species as regards the BCF was never done before. Conclusion: The obtained results indicate the possibility of use of Fasciola flukes as markers of environmental pollution with some heavy metals.
کلیدواژه‌های انگلیسی مقاله Bioaccumulation,Fasciola,Heavy metals
نویسندگان مقاله wael محمد لطفی | wael mohamed lotfy
parasitology department, medical research institute, alexandria university, egypt.


انور محسن ezz | anwar mohsen ezz
applied medical chemistry department, medical research institute, alexandria university, egypt.


اشرف علی مصطفی حسن | ashraf ali moustafa hassan
applied medical chemistry department, medical research institute, alexandria university, egypt and department of medical laboratory technology, faculty of applied medical sciences, jazan university, saudi arabia.
نشانی اینترنتی http://ijpa.tums.ac.ir/index.php/ijpa/article/view/455
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