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Iranian Journal of Microbiology، جلد ۸، شماره ۵، صفحات ۳۲۶-۳۳۰
عنوان فارسی
چکیده فارسی مقاله
کلیدواژه‌های فارسی مقاله
عنوان انگلیسی Prevalence of colonization and mitochondrial large subunit rRNA mutation of Pneumocystis jiroveci among Iranian children
چکیده انگلیسی مقاله Background and Objectives: Pneumocystis jiroveci is an important causative agent of Pneumocystis pneumonia. During childhood, exposure to Pneumocystis occurs and antibody was built in early childhood. The aim of this study was to describe the molecular epidemiology of P. jiroveci in children without any respiratory syndrome and survey the distribution of different mitochondrial large subunit, ribosomal ribonucleic acid (mtLSU- rRNA) genotypes. Materials and Methods: Mini-bronchoalveolar lavage (mini-BAL) fluids from pediatric patients with no history of lung disorders were obtained during a 14-month period. P. jiroveci colonization was confirmed by immunofluorescence staining, nested PCR and sequencing. Genotypic characterization at the mitochondrial large subunit rRNA gene was performed by direct sequencing. Results: Of 172 BAL specimens from patients, with mean age of 4.9 years, the prevalence of P. jiroveci colonization was 3.5% (6 samples). The results of sequencing revealed the two polymorphisms; 85/A; 248/C in 3 cases, and 85/T; 248/C in other cases. One sample also showed a mutation replacement at position 258 (T-to-C change), which was not reported previously. Conclusion: Colonized person as an environmental reservoir might play an important role in the progression of infection in immunocompromised patients. Diagnosis of the reservoir and genotyping can be essential for the prevention of nosocomial infections. Keywords: Pneumocystis jiroveci; PCR; Genotypic; Pediatrics
کلیدواژه‌های انگلیسی مقاله Keywords, Pneumocystis jiroveci,PCR,genotypic,pediatrics
نویسندگان مقاله پریسا بدیعی | parisa badiee
shiraz university of medical science

سازمان اصلی تایید شده: دانشگاه شیراز (Shiraz university)

علی رضاپور | ali rezapour
shiraz university of medical science

سازمان اصلی تایید شده: دانشگاه شیراز (Shiraz university)

امین عباسیان | amin abbasian
shiraz university of medical science

سازمان اصلی تایید شده: دانشگاه شیراز (Shiraz university)

حمید رضا فروتن | hamid reza foroutan
shiraz university of medical science

سازمان اصلی تایید شده: دانشگاه شیراز (Shiraz university)

حدیث جعفریان | hadis jafarian
shiraz university of medical science

سازمان اصلی تایید شده: دانشگاه شیراز (Shiraz university)

نشانی اینترنتی http://ijm.tums.ac.ir/index.php/ijm/article/view/921
فایل مقاله اشکال در دسترسی به فایل - ./files/site1/rds_journals/91/article-91-269907.pdf
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زبان مقاله منتشر شده en
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نوع مقاله منتشر شده Articles
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