An in vitro investigation was carried out to assess how the lipopeptide biosurfactant (LPB) produced by Acinetobacter junii B6 affects Leishmania tropica infection and associated cytokine gene expression macrophages infected with L. tropica. Glucantime® (meglumine antimoniate, MA) LPB were investigated for their leishmanicidal effect, alone combination (LPB + MA), using a colorimetric test macr...

Leishmaniasis is a protozoan vector-borne disease and is one of the biggest health problems of the world. Antileishmanial drugs have disadvantages such as toxicity and the recent development of resistance. One of the best-known mechanisms of the antibacterial effects of silver nanoparticles (Ag-NPs) is the production of reactive oxygen species to which Leishmania parasites are very sensitive. S...

Black rats (Rattus rattus) receiving Leishmania tropica injected intradermally into the ear were studied for the persistence of parasites and infectivity to natural sand fly vector. The mammalian host, the parasite, and the vector all originated from the endemic focus of Urfa, Turkey. Rats did not develop lesions or any apparent signs of disease, although at the site of inoculation they harbour...

produced in man by inoculation of cultures of Leishmania tropica. Cutaneous inoculation of Leishmania donovani from spleen puncture material from a case of kala-azar, however, is reported to have ' apparently produced kala-azar in a man' but on two occasions accidental inoculation of spleen puncture material from cases of kala-azar was without any effect (Napier, 1927). Recently, Terry et al. (...

objective(s) leishmania can lead to a broad spectrum of diseases, collectively known as leishmaniasis. the a2 gene/ protein family could be one of the most eligible candidate factors of virulence in visceral leishmaniasis (vl). the previous results confirmed that in leishmania infantum, several a2 proteins are abundantly expressed by the amastigote, but not the promastigote stage. as there are ...

background : phlebotomus sergenti s.l. is considered the most likely vector of leishmania tropica in iran. although two morphotypes- p. sergenti sergenti (a) and p. sergenti similis (b)-have been formally described, further morphologi­cal and a molecular analysis of mitochondrial cytochrome oxidase i (mtdna-coi) gene revealed inconsistencies and suggests that the variation between the morphotyp...

In North African countries, cutaneous leishmaniasis transmission has been increasing since the 1980s, with a significant increase in the incidence of cases and a spread of the geographical distribution. The disease currently represents a major public health problem with a productivity gap and an impediment for development, which results in dramatic socioeconomic and psycho-sanitary impacts. The...

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 ...

We present a new polymerase chain reaction assay based on telomeric sequences of Leishmania donovani. When this assay was used in dilutions of purified L. donovani DNA, a strong amplification signal was observed with 1 fg of DNA. In a specificity test that used purified DNA from Old World and New World Leishmania, the assay recognized all parasites isolated from patients with visceral leishmani...