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Iranian Journal of Parasitology، جلد ۱۳، شماره ۴، صفحات ۶۵۵-۶۶۰
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عنوان انگلیسی Unusual Clinical Manifestations of Leishmania (L.) infantum chagasi in an HIV-coinfected Patient and the Relevance of ITS1-PCR-RFLP: A Case Report
چکیده انگلیسی مقاله Patients coinfected with Leishmania/HIV can develop atypical forms of visceral leishmaniasis (VL), making it indispensable to identify the etiological agent. We are presenting a postmortemspecie definition by ITS1-PCR-RFLP in a larynx tissue of a patient presented coinfectionLeishmania/HIV. This patient was from a leishmaniasis endemic region in São Paulo(SP), Brazil, and was diagnosed clinically with mucocutaneous leishmaniasis. Before a rK39immunochromatographic test positive, a tiny stored paraffin-embedded larynx tissue wasobtained post-mortem and submitted to 3 conventional PCR assays: kDNA (K20/K22 and RV1/RV2), and ITS1 (LITSR/ L5.8S). The last one was followed by RFLP (HaeIII) andanalyzed by 4% Metaphor agarose gel electrophoresis. Leishmania genus and Leishmania(Leishmania) subgenus were defined by kDNA-PCR, with K20/K22 (120 bp) and RV1/RV2(145 bp), respectively. ITS1-PCR-RFLP identified L. (L.) infantum chagasi species visualizedby the restriction patterns of 180, 70 and 50 bp. This case draws attention to the necessityfor a clear identification of the etiological agent causing infection, especially in endemicregions of cutaneous and visceral leishmaniasis, and particularly in patients with comorbidities who often present atypical forms of the disease. L. (L.) infantum chagasi, which is usuallyresponsible for VL, had changed its clinical spectrum for mucocutaneous. Unequivocalidentification was carried out by ITS-PCR-RFLP, therefore confirming rK39 result. Thesetechniques, which complemented each other, have a convenient cost-benefit ratio thatmakes them suitable to be applied in developing countries.
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نویسندگان مقاله | De Godoy NATALIA SOUZA DE
Laboratory of Investigation in Medical Parasitology, Clínicas Hospital, Faculty of Medicine, University of São Paulo, São Paulo, Brazil Dept. of Infectious and Parasitic Diseases, Clínicas Hospital, Faculty of Medicine, University of São Paulo, São Paulo, Brazil


| Aiello VERA DEMARCHI
Laboratory of Pathological Anatomy, Hearth Institute, Faculty of Medicine, University of São Paulo, São Paulo, Brazil


| de Souza REGINA MAIA
Laboratory of Investigation in Medical Parasitology, Clínicas Hospital, Faculty of Medicine, University of São Paulo, São Paulo, Brazil


| Okay THELMA
Laboratory of Seroepidemiology and Immunobiology, Faculty of Medicine, University of São Paulo, São Paulo, Brazil


| Braz LUCIA MARIA ALMEIDA
Laboratory of Parasitology, Institute of Tropical Medicine, University of São Paulo, São Paulo, Brazil
نشانی اینترنتی http://ijpa.tums.ac.ir/index.php/ijpa/article/view/1616
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