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Iranian Journal of Parasitology، جلد ۹، شماره ۱، صفحات ۷۹-۸۹

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عنوان انگلیسی A multi-locus study of cryptosporidium parasites isolated from patients living in iran, Malawi, Nigeria, the United kingdom, and Vietnam.
چکیده انگلیسی مقاله Background: Cryptosporidium species are important cause of diarrheal diseases in both developing and developed countries. This study aimed to compare the perfor-mance of several molecular methods for identification of Cryptosporidium species, and to detect genetic variation among each of these species isolated from Iran, Ma-lawi, Nigeria, Vietnam and the United Kingdom. Methods: The oocysts DNA samples were derived from 106 Cryptosporidium posi-tive feces. Polymerase chain reaction, PCR- restriction fragment length polymor-phism and DNA sequence analysis of the 18S rRNA and the Cryptosporidium oo-cysts wall protein genes; PCR and DNA sequence analysis of a fragment of 70 kDa heat shock protein and 60 kDa glycoprotein genes were carried out. Results: Based on these analysis, three species of Cryptosporidium including C. homi-nis , C. parvum and C. meleagridis , and both C. hominis and C. parvum were found in Iranian and the UK samples, respectively. Also, three C. hominis (Ib, Ib3& Id) and three C. parvum (IIa, IIc & IId) subtypes were identified by sequence analysis of the GP60 gene. Of these, C. hominis Ib was predominant and interestingly, one subgen-otype ( C. hominis Ib A10G2) accounted for the majority of the samples. Conclusion: The current study demonstrates the complex subtypes of Cryptosporid-ium isolates in both developing and developed countries. This is the first report of C. parvum IId subgenotype and three new subtypes of C. parvum IIa in the UK, a new subtype of C. hominis Id from Malawi; and the first multi-locus study of three species of Cryptosporidium in human from Iran.
کلیدواژه‌های انگلیسی مقاله Cryptosporidium,Genotyping,Multilocus study,Subgenotyping

نویسندگان مقاله سلمان غفاری | salman ghaffari
dept. of parasitology and mycology, school of medicine, babol university of medical sciences, babol, iran.

سازمان اصلی تایید شده: دانشگاه علوم پزشکی بابل (Babol university of medical sciences)

نرگس کلانتری | narges kalantari
cellular and molecular biology research centre, babol university of medical , babol, iran.



نشانی اینترنتی http://ijpa.tums.ac.ir/index.php/ijpa/article/view/430
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