Results 131 to 140 of about 2,272 (172)

Leishmania tropica: Uptake of methionine by promastigotes

Experimental Parasitology, 1977
Abstract Promastigotes of Leishmania tropica transport methionine against a concentration gradient through a saturable system. This concentrative uptake requires metabolic energy and is sensitive to temperature and sulfhydryl reagents such as N -ethyl maleimide. Intracellular methionine exchanges with external methionine.
A J, Mukkada, M W, Simon
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Toxicity of bilirubin to Leishmania tropica promastigotes

Experimental Parasitology, 1976
Abstract Treatment of Leishmania tropica promastigotes with bilirubin results in loss of viability and death of the cells. A concentration of 0.1 m M is sufficient to cause complete inhibition of growth. Bilirubin inhibits the uptake of 2-deoxy- d -glucose and l -methionine. It increases the efflux of intracellularly accumulated sugars (both free
M W, Simon, J M, Rusnak, A J, Mukkada
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Leishmania tropica

2010
Cutaneous Leishmaniasis (CL), or oriental sore, is mainly caused by Leishmania tropica and L. major in the Old World. CL due to L. tropica has become a major public health problem in different endemic foci due to recent outbreaks in several urban areas. The disease caused by L. tropica presents varying clinical manifestations and complications.
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Coexistence of Leishmania tropica and Leishmania infantum in Sefrou province, Morocco

Acta Tropica, 2014
Cutaneous leishmaniasis (CL) has been recently emerged in new foci, posing a public health problem. Increasing cases of CL have been reported during recent years in Sefrou province, a previously non-endemic area. The present study was designed for epidemiological and parasitological characterization of the disease for the first time in this area.
Hmamouch Asmae, Amarir Fatima, Fellah Hajiba, Karzaz Mbarek, Bekhti Khadija, Rhajaoui Mohamed, Sebti Faiza   +6 more
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Leishmania tropica in Egypt: an undesirable import

Tropical Medicine & International Health, 1996
SummaryCutaneous as well as visceral leishmaniasis has been previously reported in Egypt. The former clinical manifestation is attributed to Leishmania major, the latter to L. infantum. In this study, L. tropica was isolated from an Egyptian labourer returning from Saudi Arabia.
E W, Mohareb, E M, Mikhail, F G, Youssef
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Leishmania tropica Presenting Macrocheilia

Dermatologica, 2009
Leishmania tropica rarely involve the mucous membrane. The only presenting symptom in the reported case was a chronic macrocheilia simulating a granulomatous cheilitis.
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Characterization of RNA from Leishmania tropica and Leishmania d. donovani promastigotes

Molecular and Biochemical Parasitology, 1987
RNA has been prepared from promastigotes of Leishmania tropica and Leishmania d.donovani using three different methods. Extraction by hot phenol/isothiocyanate gave the best quantitative and qualitative results. The analysis of total RNA on methyl mercuric agarose gels shows that the large rRNA species is nicked: it is composed of a 630 and a 560 kDa ...
M, Vedel, M, Robert-Géro
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Cutaneous leishmaniasis caused by Leishmania tropica in Algeria

Transactions of the Royal Society of Tropical Medicine and Hygiene, 2008
Cutaneous leishmaniasis is endemic in Algeria, but clinical and parasitological data from this area are scarce. In order to document the transmission of this disease in a peri-urban setting, cutaneous lesions from patients living in Constantine City and surrounding areas were spotted on filter paper for diagnosis and species identification using real ...
Ilhem, Mihoubi, Stéphane, Picot, Nadia, Hafirassou, Frédérique, de Monbrison   +3 more
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Leishmania tropica: Differences in the antigenicity of promastigotes and amastigotes

Cellular Immunology, 1985
In vitro bioassays were used to compare T-cell responses induced by the intramacrophage amastigote stage and the sandfly-borne promastigote stage of Leishmania tropica. Lymph node cells from mice immunized with sonicated promastigotes or amastigotes incorporated in Freund's complete adjuvant were assayed for their ability to proliferate and to release ...
M D, Sadick, H V, Raff
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Standardization and quality control of Leishmania tropica vaccine

Journal of Biological Standardization, 1974
Abstract The production and properties of Leishmania tropica vaccine have been described. It has been pointed out that the use of this vaccine is not without inherent hazards and great care should be taken in its preparation. A set of requirements for the production and testing of the vaccine based on those of the Ministry of Health in Israel and ...
E, Handman, D T, Spira, A, Zuckerman, B, Montilio   +3 more
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