Results 181 to 190 of about 4,221 (205)
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Status of respiration and ATP content in arsenite resistantLeishmania mexicana amazonensis
Microbial Pathogenesis, 1999Cellular ATP and rate of respiration are important for the cell survival. We have analyzed both the parameters in wild type and arsenite resistant Leishmania mexicana amazonensis. There was no significant change observed in the rate of respiration and cellular ATP content between drug resistant cells (resistance to 30 microM of sodium arsenite) and ...
A K, Singh, S T, Lee
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Temperature‐induced expression of proteins in Leishmania mexicana amazonensis
European Journal of Biochemistry, 1990Temperature increase is an integral part of Leishmania life cycle, and plays a major role in stage transformation. Analysis of the temperature‐dependent pattern of protein synthesis on two‐dimensional gel electrophoresis shows that, in addition to the conserved heat‐shock type of response in which expression of the major 70‐kDa and 83‐kDa heat‐shock ...
E, Pinelli, M, Shapira
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Journal of Medical Entomology, 1977
A trap for the capture of live, fed Lutzomyia flaviscutellata (Mangabeira) is described. Females caught in it were the basis of a closed laboratory colony, which to date is in 9th generation; a total of 9732 adults have been produced. Larvae were fed on liver powder and yeast, and the average development time from egg to adult was 40.5 days.
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A trap for the capture of live, fed Lutzomyia flaviscutellata (Mangabeira) is described. Females caught in it were the basis of a closed laboratory colony, which to date is in 9th generation; a total of 9732 adults have been produced. Larvae were fed on liver powder and yeast, and the average development time from egg to adult was 40.5 days.
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Molecular and Biochemical Parasitology, 1984
Phenazine methosulfate, a cationic electron carrier, inhibits the extracellular growth of promastigotes and the conversion of amastigotes into promastigote forms of Leishmania mexicana amazonensis. Growth inhibition and damage of extracellular parasites by PMS was counteracted by superoxide dismutase, a scavenger of the superoxide anion (O2-), and to a
Z F, Nabi, M, Rabinovitch
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Phenazine methosulfate, a cationic electron carrier, inhibits the extracellular growth of promastigotes and the conversion of amastigotes into promastigote forms of Leishmania mexicana amazonensis. Growth inhibition and damage of extracellular parasites by PMS was counteracted by superoxide dismutase, a scavenger of the superoxide anion (O2-), and to a
Z F, Nabi, M, Rabinovitch
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Isolation of the intracellular stages ofLeishmania mexicana amazonensisusing cellulose column
Annals of Tropical Medicine & Parasitology, 1978(1978). Isolation of the intracellular stages of Leishmania mexicana amazonensis using cellulose column. Annals of Tropical Medicine & Parasitology: Vol. 72, No. 6, pp. 579-580.
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Molecular and Biochemical Parasitology, 1990
Changes in environmental temperature regulate the differential expression of genes during Leishmania stage differentiation. Therefore, molecular analysis of the heat shock proteins (HSPs) in these parasites is of interest as a model for thermoregulation of gene expression.
M, Shapira, G, Pedraza
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Changes in environmental temperature regulate the differential expression of genes during Leishmania stage differentiation. Therefore, molecular analysis of the heat shock proteins (HSPs) in these parasites is of interest as a model for thermoregulation of gene expression.
M, Shapira, G, Pedraza
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Experimental Parasitology, 1988
Leishmania mexicana amazonensis amastigotes were induced to differentiate by incubation at 27 C. Morphological transformation was studied both in untreated cultures and in cultures where DNA synthesis, and consequently the final stage in the production of promastigotes, was inhibited by hydroxyurea.
D R, Taylor, G T, Williams
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Leishmania mexicana amazonensis amastigotes were induced to differentiate by incubation at 27 C. Morphological transformation was studied both in untreated cultures and in cultures where DNA synthesis, and consequently the final stage in the production of promastigotes, was inhibited by hydroxyurea.
D R, Taylor, G T, Williams
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Molecular and Biochemical Parasitology, 1997
The TOR gene (TOxic nucleoside Resistance gene) was mapped to a 2.3 kb fragment on the amplified DNA from tubercidin resistant Leishmania (TUB). This DNA fragment conferred upon wild type cells resistance to tubercidin, inosine dialdehyde, formycin A and B and allopurinol riboside and a reduced ability to accumulate purine nucleobases and nucleosides ...
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The TOR gene (TOxic nucleoside Resistance gene) was mapped to a 2.3 kb fragment on the amplified DNA from tubercidin resistant Leishmania (TUB). This DNA fragment conferred upon wild type cells resistance to tubercidin, inosine dialdehyde, formycin A and B and allopurinol riboside and a reduced ability to accumulate purine nucleobases and nucleosides ...
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Journal of Leukocyte Biology, 1985
Abstract Leishmania amastigotes, obligatory parasites of macrophages, lodge and multiply within long-lived phagolysosomelike “parasitophorous vacuoles” (PV). The glycoprotein horseradish peroxidase (HRP) was shown, by light and electron microscopic cytochemistry, to enter the PVs of rat in vitro-derived bone marrow macrophages infected ...
M, Rabinovitch +3 more
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Abstract Leishmania amastigotes, obligatory parasites of macrophages, lodge and multiply within long-lived phagolysosomelike “parasitophorous vacuoles” (PV). The glycoprotein horseradish peroxidase (HRP) was shown, by light and electron microscopic cytochemistry, to enter the PVs of rat in vitro-derived bone marrow macrophages infected ...
M, Rabinovitch +3 more
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Journal of submicroscopic cytology and pathology, 1988
Promastigotes and amastigotes of Leishmania mexicana amazonensis, incubated in the presence of 20 ng/ml of 12-O-tetradecanoyl phorbol-13-acetate (TPA), an exogenous protein kinase C activator, developed several membrane and cytoplasmic alterations. Increased exocytic activity was observed especially in the amastigotes which had an enlarged flagellar ...
M A, Vannier-Santos +2 more
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Promastigotes and amastigotes of Leishmania mexicana amazonensis, incubated in the presence of 20 ng/ml of 12-O-tetradecanoyl phorbol-13-acetate (TPA), an exogenous protein kinase C activator, developed several membrane and cytoplasmic alterations. Increased exocytic activity was observed especially in the amastigotes which had an enlarged flagellar ...
M A, Vannier-Santos +2 more
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