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Iranian Journal of Parasitology، جلد ۱۱، شماره ۴، صفحات ۴۶۳-۴۷۰
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عنوان انگلیسی Simplified Pan-species Real-time PCR-based Detection of Plasmodium Spp. in Blood Smear
چکیده انگلیسی مقاله Background: We aimed to quicken and simplify the detection of Plasmodium in blood samples by developing and testing a pan- Plasmodium real-time PCR for accurate screening of individuals suspected of malaria. Methods : A single primer/probe set for pan-species Plasmodium -specific real time PCR targeting a conserved region of the small subunit 18S ribosomal DNA was designed and evaluated for rapid diagnosis and screening of malaria infections using dried blood smears. FTA cards were used for rapid and simple DNA extraction. Results : The primers and probes showed a positive response with the DNA extracted from bloods infected with P. falciparum and P. vivax but not with DNA extracted from various smears from uninfected blood samples. Seven positive cases positive by both microscopy and nested PCR were found among 280 blood samples taken from in South and Southeast Iran. Five samples were identified as positive for P. vivax and two as positive for P. falciparum . All positive samples were positive by real-time PCR. Furthermore, all 38-blood samples positive by microscopy were positive by real-time PCR. No microscopy-negative samples were positive by real-time PCR. Conclusion : By using a simple FTA card for DNA extraction and by application of the real-time PCR developed in this study, sensitivity similar to nested-PCR and microscopy was achieved. This format simplifies the detection of Plasmodium in large numbers of samples. Background: We aimed to quicken and simplify the detection of Plasmodium in blood samples by developing and testing a pan- Plasmodium real-time PCR for accurate screening of individuals suspected of malaria. Methods : A single primer/probe set for pan-species Plasmodium -specific real time PCR targeting a conserved region of the small subunit 18S ribosomal DNA was designed and evaluated for rapid diagnosis and screening of malaria infections using dried blood smears. FTA cards were used for rapid and simple DNA extraction. Results : The primers and probes showed a positive response with the DNA extracted from bloods infected with P. falciparum and P. vivax but not with DNA extracted from various smears from uninfected blood samples. Seven positive cases positive by both microscopy and nested PCR were found among 280 blood samples taken from in South and Southeast Iran. Five samples were identified as positive for P. vivax and two as positive for P. falciparum . All positive samples were positive by real-time PCR. Furthermore, all 38-blood samples positive by microscopy were positive by real-time PCR. No microscopy-negative samples were positive by real-time PCR. Conclusion : By using a simple FTA card for DNA extraction and by application of the real-time PCR developed in this study, sensitivity similar to nested-PCR and microscopy was achieved. This format simplifies the detection of Plasmodium in large numbers of samples.
کلیدواژه‌های انگلیسی مقاله Malaria, Plasmodium, Diagnosis, FTA cards, Real-time PCR
نویسندگان مقاله غلامرضا حسن پور | gholamreza hassanpour
center for research of endemic parasites of iran, tehran university of medical sciences, tehran, iran department of medical parasitology amp;amp; mycology, school of public health, tehran university of medical sciences, tehran, iran

سازمان اصلی تایید شده: دانشگاه علوم پزشکی تهران (Tehran university of medical sciences)

حسین میرهندی | hossein mirhendi
department of medical parasitology amp;amp; mycology, school of public health, tehran university of medical sciences, tehran, iran

سازمان اصلی تایید شده: دانشگاه علوم پزشکی تهران (Tehran university of medical sciences)

مهدی محبعلی | mehdi mohebali
center for research of endemic parasites of iran, tehran university of medical sciences, tehran, iran department of medical parasitology amp;amp; mycology, school of public health, tehran university of medical sciences, tehran, iran

سازمان اصلی تایید شده: دانشگاه علوم پزشکی تهران (Tehran university of medical sciences)

احمد رییسی | ahmad raeisi
department of medical entomology amp;amp; vector control, school of public health, tehran university of medical sci-ences, tehran, iran

سازمان اصلی تایید شده: دانشگاه تهران (Tehran university)

حسین کشاورز | hossein keshavarz
center for research of endemic parasites of iran, tehran university of medical sciences, tehran, iran department of medical parasitology amp;amp; mycology, school of public health, tehran university of medical sciences, tehran, iran

سازمان اصلی تایید شده: دانشگاه علوم پزشکی تهران (Tehran university of medical sciences)

نشانی اینترنتی http://ijpa.tums.ac.ir/index.php/ijpa/article/view/1345
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