نتایج جستجو برای: l .tropica

تعداد نتایج: 619068  

2015
Dhekra Chaara Anne- Laure Bañuls Najoua Haouas Loïc Talignani Patrick Lami Habib Mezhoud Zoubir Harrat Jean-Pierre Dedet Hamouda Babba Francine Pratlong Alain Debrabant

Leishmania (L.) killicki (syn. L. tropica), which causes cutaneous leishmaniasis in Maghreb, was recently described in this region and identified as a subpopulation of L. tropica. The present genetic analysis was conducted to explore the spatio-temporal distribution of L. killicki (syn. L. tropica) and its transmission dynamics. To better understand the evolution of this parasite, its populatio...

Journal: :The American journal of tropical medicine and hygiene 2009
Magdi G Shehata Abdallah M Samy Said A Doha Adel R Fahmy Rania M Kaldas Barry D Furman Jeffrey T Villinski

Cutaneous leishmaniasis (CL) is prevalent in the Egyptian Sinai Peninsula and previous research has consistently documented the etiologic agent to be Leishmania major. We report the first isolation of Leishmania tropica from human cases of CL in a Northern Sinai community bordering Palestine. Parasite culturing, real-time polymerase chain reaction (PCR), gene sequencing, and restriction fragmen...

2012
Tetyana Kobets Helena Havelková Igor Grekov Valeriya Volkova Jarmila Vojtíšková Martina Slapničková Iryna Kurey Yahya Sohrabi Milena Svobodová Peter Demant Marie Lipoldová

BACKGROUND Leishmaniasis is a disease caused by protozoan parasites of genus Leishmania. The frequent involvement of Leishmania tropica in human leishmaniasis has been recognized only recently. Similarly as L. major, L. tropica causes cutaneous leishmaniasis in humans, but can also visceralize and cause systemic illness. The relationship between the host genotype and disease manifestations is p...

2006
Milena Svobodova Jan Votypka Jitka Peckova Vít Dvorak Abedelmajeed Nasereddin Gad Baneth Julia Sztern Vasiliy Kravchenko Amnon Orr David Meir Lionel F. Schnur Petr Volf Alon Warburg

Transmission of Leishmania tropica was studied in 2 adjacent foci in Israel where vector populations differ. Only Phlebotomus sergenti was found infected with L. tropica in the southern focus; P. arabicus was the main vector in the northern focus. Rock hyraxes (Procavia capensis) were incriminated as reservoir hosts in both foci. L. tropica strains from the northern focus isolated from sand fli...

2013
MA Ghatee I Sharifi H Mirhendi Z Kanannejad G Hatam

BACKGROUND Leishmania tropica is a genetically divergent species. Amplification of entire internal transcribed spacer (ITS) region of L. tropica isolates obtained from Bam district, one of the well known focus of anthroponotic cutaneous leishmaniasis (ACL) in Iran, revealed a double-band pattern in agarose gel electrophoresis. This study explains how this pattern occurs. METHODS Twenty seven ...

Journal: :The Korean journal of parasitology 2007
Hamid Mahmoudzadeh-Niknam Simin Sadat Kiaei Davood Iravani

Leishmania tropica and L. major are etiologic agents of human cutaneous leishmaniasis. Delayed type hypersensitivity (DTH) is an immunologic response that has been frequently used as a correlate for protection against or sensitization to leishmania antigen. In BALB/c mice, L. tropica infection results in non-ulcerating disease, whereas L. major infection results in destructive lesions. In order...

2011
Shahram Khademvatan Mohammad Javad Gharavi Fakher Rahim Jasem Saki

The aim of this study was to assess the cytotoxic effects of various concentrations of miltefosine on Leishmania major (MRHO/IR/75/ER) and L. tropica (MHOM/IR/02/Mash10) promastigotes and to observe the programmed cell death features. The colorimetric MTT assay was used to find L. major and L. tropica viability and the obtained results were expressed as 50% inhibitory concentration (IC50). Also...

Journal: :Acta parasitologica 2016
Hossein Reisi Nafchi Elham Kazemi-Rad Mehdi Mohebali Reza Raoofian Niloofar Bavarsad Ahmadpour Mohammad Ali Oshaghi Homa Hajjaran

UNLABELLED Viscerotropic leishmaniasis (VTL) is a parasitic disease with non-specific manifestations caused by Leishmania tropica. Specific antigens produced by Viscerotropic leishmaniasis gene have been used for diagnosis of VTL. The aim of this study was to compare the expression level of VTL gene among the viscerotropic L. tropica isolates (n: 3) and visceral L. infantum isolates (n: 4). Als...

2016
Imran Khan Momin Khan Muhammad Naveed Umar Deog-Hwan Oh

BACKGROUND Infections caused by Leishmania are becoming major public health problems on a global scale. Many species of Leishmania around the world are obtaining resistance levels of up to 15 folds, as estimated by the World Health Organization. Leishmania showing resistance is relatively difficult to observe and maintain in laboratory settings. OBJECTIVES The current study deals with the gen...

2015
Lena Krayter Lionel F. Schnur Gabriele Schönian Ting Wang

BACKGROUND Leishmania (Leishmania) aethiopica and L. (L.) tropica cause cutaneous leishmaniases and appear to be related. L. aethiopica is geographically restricted to Ethiopia and Kenya; L. tropica is widely dispersed from the Eastern Mediterranean, through the Middle East into eastern India and in north, east and south Africa. Their phylogenetic inter-relationship is only partially revealed. ...

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