Results 51 to 60 of about 6,816 (177)

Fusion between Leishmania amazonensis and Leishmania major parasitophorous vacuoles: live imaging of coinfected macrophages. [PDF]

open access: yesPLoS Neglected Tropical Diseases, 2010
Protozoan parasites of the genus Leishmania alternate between flagellated, elongated extracellular promastigotes found in insect vectors, and round-shaped amastigotes enclosed in phagolysosome-like Parasitophorous Vacuoles (PVs) of infected mammalian ...
Fernando Real   +2 more
doaj   +1 more source

Analysis and chromosomal mapping of Leishmania (Leishmania) amazonensis amastigote expressed sequence tags

open access: yesMemorias do Instituto Oswaldo Cruz, 2007
The characterization of expressed sequence tags (ESTs) generated from a cDNA library of Leishmania (Leishmania) amazonensis amastigotes is described. The sequencing of 93 clones generated new L. (L.) amazonensis ESTs from which 32% are not related to any
Luciana Girotto Gentil   +4 more
doaj   +1 more source

Leishmania-Induced Dendritic Cell Migration and Its Potential Contribution to Parasite Dissemination

open access: yesMicroorganisms, 2021
Leishmania, an intracellular parasite species, causes lesions on the skin and in the mucosa and internal organs. The dissemination of infected host cells containing Leishmania is crucial to parasite survival and the establishment of infection.
Amanda Rebouças   +10 more
doaj   +1 more source

Exploring Biological Properties of Manganese(II)‐Phenanthroline‐Based Complexes: In Vitro Insights

open access: yesChemistrySelect, Volume 11, Issue 29, 3 August 2026.
Four Mn(II) complexes with phenanthroline derivatives were studied. These compounds were tested against several parasites and different human cancer cells. Despite its cytotoxicity on breast cancer, DNA seems not to be the main biological target. These complexes can drive the design and development of new metal‐based agents with improved biological ...
Roberto S. Silva   +16 more
wiley   +1 more source

Leishmania amazonensis Infection in Nude Mice.

open access: yesExperimental Animals, 1999
Leishmania amazonensis is an intracellular protozoan parasite of macrophages. Cutaneous leishmaniasis in an immunocompetent host begins as papules or nodules followed by ulceration at the site of promastigote inoculation. In this study, the pathological changes of cutaneous leishmaniasis lesions in T cell deficient nude mice were examined.
TERABE, Masaki   +5 more
openaire   +3 more sources

Miltefosine induces programmed cell death in Leishmania amazonensis promastigotes

open access: yesMemorias do Instituto Oswaldo Cruz, 2011
In the current study, we evaluated the mechanism of action of miltefosine, which is the first effective and safe oral treatment for visceral leishmaniasis, in Leishmania amazonensis promastigotes.
Fernanda de Aquino Marinho   +7 more
doaj   +1 more source

Identification of a Benzenesulfonylpiperazine Derivative With In Vivo Efficacy Against Visceral Leishmaniasis

open access: yesChemical Biology &Drug Design, Volume 108, Issue 2, August 2026.
This work highlights the satisfactory pharmacokinetic profile of two benzenesulfonylpiperazine lead candidates, followed by in vivo assessment in a murine model of visceral leishmaniasis. This assessment identified compound 2 as moderately active at a lower dose, but its efficacy increased at higher doses, though with concerns regarding safety.
Thibault Joseph William Jacques Dit Lapierre   +13 more
wiley   +1 more source

Immunogold labeling and cerium cytochemistry of the enzyme ecto-5'-nucleotidase in promastigote forms of Leishmania species

open access: yesMemorias do Instituto Oswaldo Cruz, 1993
We have applied both enzyme cytochemistry and immunological labeling techniques to characterize the enzyme 5'-nucleotidase (5'-Nase), at the ultrastructural level, in promastigote forms of four Leishmania species: Leishmania amazonensis, Leishmania ...
Suzana Corte-Real   +2 more
doaj   +1 more source

Thymus and Leishmania at the Crossroads: Autoimmunity and Cancer

open access: yesImmunology, Volume 178, Issue 3, Page 377-386, July 2026.
Conceptual ‘Crossroads Model’ linking Leishmania, thymic infection and immune dysregulation: an integrative model is proposed in which Leishmania infection disrupts thymic architecture and stromal–thymocyte interactions. These alterations converge to promote defective tolerance, increased autoimmune risk and a microenvironment permissive to malignant ...
Alef Batista Bezerra Barros   +5 more
wiley   +1 more source

Multifunctional Oregano‐Derived Plasma Polymer Coatings for Wound Healing Applications: An In Vitro Study

open access: yesInternational Wound Journal, Volume 23, Issue 6, June 2026.
ABSTRACT Chronic wounds, exacerbated by infection, aging, diabetes, and oxidative stress, remain a significant challenge in clinical management and impose a substantial burden on healthcare systems. This study presents oregano‐derived plasma polymers (OPP) as a multifunctional surface coating for advanced wound healing applications.
Jesus Romo‐Rico   +7 more
wiley   +1 more source

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