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Iranian Journal of Parasitology، جلد ۱۱، شماره ۳، صفحات ۳۸۹-۳۹۵
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عنوان انگلیسی Trypanosoma cruzi: Evaluation of PCR as a Laboratory Tool to Follow up the Evolution of Parasite Load
چکیده انگلیسی مقاله Background: The study evaluated qualitative PCR, primers 121-122 as a tool to follow up evolution parasite load of Trypanosoma cruzi . Methods: The study was conducted at the State University of Maringa, in 2015. Step 1, dilutions 1/10 were performed from T. cruzi -Y strain to obtain preparations of 50,000-0.05 parasites/mL from which DNA were extracted, quantified, and amplified. Step 2, the extracted DNA in the dilutions 5-0.05 parasites/mL was re-diluted 1/10, 1/100, 1/1000, quantified, and amplified. Polyacrylamide gels were photographed and thicknesses of the 330 bp kDNA fragments were measured. Results: Step 1, in the dilutions 50,000-50 parasites/mL kDNA fragments had same thickness and, dilutions 5-0.05 parasites/mL showed progressive decrease in thicknesses and staining intensity of the 330 bp fragments. Step 2, demonstrated that dilutions of five (re-dilutions 1/10 and 1/100) and 0.5 (1/10) parasites/mL produced similar thicknesses of the 330 bp fragments obtained in Step 1. However, very dilute DNA samples make difficult to reproduce the fragments thicknesses. Conclusion: PCR, despite its limitations, was able to detect progressive decrease in thicknesses/staining intensity of kDNA fragments in the dilutions 5-0.05 parasites/mL. Hence, has the potential to be used to follow-up evolution of parasite load, not by quantifying the number of parasites, but by dynamic evolution of the fragments thicknesses during etiological treatment.
کلیدواژه‌های انگلیسی مقاله Trypanosoma cruzi, Parasite load, PCR, kDNA fragments
نویسندگان مقاله fabiana nabarro ferraz | fabiana nabarro ferraz


دنیس lessa aleixo | denise lessa aleixo


آنا paula gruendling | ana paula gruendling


mônica lúcia gomes | mônica lúcia gomes


پایولی جان de ornelas toledo | max jean de ornelas toledo


silvana مارکوس de araújo | silvana marques de araújo


نشانی اینترنتی http://ijpa.tums.ac.ir/index.php/ijpa/article/view/1219
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زبان مقاله منتشر شده en
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نوع مقاله منتشر شده Short Communication(s)
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