Background: Different methods have been used for characterization of Leishmania promastigotes. Monoclonal antibodies are useful in characterization of   Leishmania spp . both amastogotes and promastigotes. Objective: Comparing the characterization of   Leishmania spp. promastigotes with immunoperoxidase test (Avidin-Biotin) techniques and an indirect immunofluorescent assay (IFA).   Methods: Ap...

conclusions l. major is the main species responsible for cutaneous leishmsniasis in four geographical regions of khuzestan province southwestern of iran and nested pcr can be used for diagnosis and leishmania species identification. results 138 (94.5%) out of 146 cases of four regions were l. major and 8(5.5%) were l. tropica. 57.97% of l. major cases were male and 42.03% were female. 87.5% of ...

A series of ring substituted 3-phenyl-1-(1,4-di-N-oxide quinoxalin-2-yl)-2-propen-1-one derivatives were synthesized and tested for in vitro leishmanicidal activity against amastigotes of Leishmania amazonensis in axenical cultures and murine infected macrophages. Structure-activity relationships demonstrated the importance of a radical methoxy at position R3', R4' and R5'. (2E)-3-(3,4,5-trimet...

Background: Cutaneous Leishmaniasis, is endemically observed in different parts of Iran in two forms of anthroponotic and zoonotic. The identification of both species and the type of disease are beneficial for treatment and prevention. Microscopic identification of Leishmania species has not provided promising efficacy. The aim of this study was to determine the Le...

In a former communication one of us (Row, 1922) had pointed out that the flagellate leptomonad forms of Leishmania tropica reverted to the leishmania O-bodies and these made their appearance in the condensation fluid of NNN culture tubes inoculated with the parasite 2 to 3 weeks previously. These were described as the O-bodies, or resistant forms, and it is the presence of these in old cultures...

Extrachromosomal DNA elements have been identified in wild-type populations of the parasitic protozoan Leishmania. Elements from L. major and L. tropica were detected using orthogonal-field-alternation-gel electrophoresis. They are nonhomologous, supercoiled circular DNA molecules derived from different chromosomes in the Leishmania genome. Electron microscopy revealed that the elements have ve...

BACKGROUND Recent circumstantial evidence suggests that an increasing number of Iranian patients with cutaneous leishmaniasis are unresponsive to meglumine antimoniate (Glucantime), the first line of treatment in Iran. This study was designed to determine whether the clinical responses (healing, or non-healing) were correlated with the susceptibility of Leishmania parasites to Glucantime. MET...

A chemically defined medium to grow the promastigotes of 19 stocks of Leishmania is described. The medium was developed by making qualitative and quantitative modifications of the medium AR-103 devised for Trypanosoma cruzi. The new medium, designated as MD-29, can be used in studies on the nutritional requirements of promastigotes.

A two-year study was conducted of phlebotomine sand fly fauna in a defined focus of Leishmania tropica. A total of 17,947 sand flies representing 10 species were collected from the location. Phlebotomus guggisbergi, a vector of L. tropica in Kenya, was the most prevalent species through the entire period, representing about 80% of the total catch. There was marked seasonal fluctuation in the po...

Leishmaniasis is a widespread arthropod-borne protozoan zoonosis caused by more than 21 Leishmania species. Vectors are sandflies of different genera. The disease is classified into "Old World" versus "New World" leishmaniasis and further subclassified in cutaneous, mucocutaneous and visceral forms. Most therapeutic approaches are not evidence-based. We report a patient with facial cutaneous Le...