Results 41 to 50 of about 11,756 (178)

Trypanosoma cruzi Intracellular Amastigotes Isolated by Nitrogen Decompression Are Capable of Endocytosis and Cargo Storage in Reservosomes. [PDF]

PLoS ONE, 2015
Epimastigote forms of Trypanosoma cruzi (the etiologic agent of Chagas disease) internalize and store extracellular macromolecules in lysosome-related organelles (LROs) called reservosomes, which are positive for the cysteine protease cruzipain.
Cassiano Martin Batista, Rafael Luis Kessler, Iriane Eger, Maurilio José Soares   +3 more
doaj   +1 more source

Structural basis of ligand selectivity in FAD/NAD(P)H‐dependent dehydrogenases: insights from trypanothione reductase and type II NADH dehydrogenase

Protein Science, Volume 35, Issue 7, July 2026.
Abstract FAD/NAD(P)H‐dependent dehydrogenases form a structurally conserved family of redox enzymes that participate in essential metabolic processes across parasites and higher organisms. Among them, trypanothione reductase (TR) is a key component of the redox metabolism of Leishmania species and represents an attractive target for antileishmanial ...
Giulia Chiara Maria Perrone, Serena Spadone, Anna Lucia Francavilla, Sara Morselli, Sabino Todisco, Margherita Ortalli, Jairo Alfonso Mendoza‐Roldan, Valeria Scaglione, Maria Noemi Sgobba, Lorenzo Guerra, Federica Belluti, Stefania Varani, Domenico Otranto, Anna De Grassi, Mariateresa Volpicella, Ciro Leonardo Pierri   +15 more
wiley   +1 more source

Evaluación de la respuesta de isotipos de inmunoglobulina especifica a Leishmania en leishmaniasis tegumentaria Americana Evaluation of specific immunoglobin isotype response to Leishmania in American tegumentary leishmaniasis

Memorias do Instituto Oswaldo Cruz, 1989
Con el fin de determinar las clases de anticuerpo producido contra el parásito y la cinética de los mismos en relación a la evolución de la infección, se estudiaron los sueros de 133 pacientes infectados con Leishmania del complejo braziliensis.
Maricel Labrada, Kristen Weigle, Liliana Valderrama, Nancy G. Saravia   +3 more
doaj   +1 more source

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

PLoS 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, Renato A Mortara, Michel Rabinovitch   +2 more
doaj   +1 more source

Ruminants Epidemiology, Spatial Clustering and Multivariate Risk Modelling of Cutaneous Leishmaniasis in District Bajaur, Pakistan

Veterinary Medicine and Science, Volume 12, Issue 4, July 2026.
This study investigated the epidemiology, risk factors and spatial distribution of cutaneous leishmaniasis in District Bajaur, Pakistan. Higher prevalence was observed among young males during summer, with lesions mainly on exposed body parts. Spatial analysis identified Khar, Loe Mamund and Salarzai as hotspots, highlighting the need for targeted ...
Murad Ali Khan, Jawad Ali, Zohaib Ali, Abdur Rehman, Muhammad Shoib, Sadaf Fayaz, Rifat Ullah Khan, Shabana Naz, Naseer Khan Momand, Antonella Perillo, Ibrahim A. Alhidary   +10 more
wiley   +1 more source

Cruzain Inhibitors for Chagas Disease: Anticorrelated Optimisation Landscapes and the Multiparametric Path to Clinical Candidates

Chemical Biology &Drug Design, Volume 107, Issue 6, June 2026.
Three decades of cruzain‐targeted drug discovery have yielded 215 sub‐micromolar inhibitors but no clinical candidates. This review diagnoses a systemic translational failure driven by single‐parameter optimisation and proposes a multiparametric framework integrating enzymatic potency, cathepsin selectivity, intracellular exposure, and metabolic ...
Caroline Rodrigues Chaves dos Reis, Hellen Valério Chaves Moura de Souza, Lidia Corrêa Parra, Guilber Valério Chaves Moura de Souza, Bruna Costa Zorzanelli, Nubia Boechat, Lucas Villas Bôas Hoelz, Tácio Vinício Amorim Fernandes   +7 more
wiley   +1 more source

Identification of sialic acids on Leishmania donovani amastigotes [PDF]

Biological Chemistry, 2004
AbstractThe presence of Neu5Ac on promastigotes of Leishmania donovani, the causative organism of Indian visceral leishmaniasis, has been reported recently. Here we report the occurrence of Neu5Ac as a major component on amastigotes, as well as Neu5Gc, Neu5,9Ac2 and Neu9Ac5Gc as indicated by fluorimetric high performance liquid chromatography and gas ...
Chava, A.K., Chatterjee, M., Gerwig, G.J., Kamerling, J.P., Mandal, C.   +4 more
openaire   +4 more sources

Leishmaniose visceral em um canino de Cruz Alta, Rio Grande do Sul, Brasil Visceral leishmaniasis in a dog in Cruz Alta, Rio Grande do Sul, south Brazil

Ciência Rural, 2007
Descreve-se um caso de leishmaniose visceral em um canino, macho, Akita, cinco anos, que foi atendido no Hospital Veterinário da Universidade de Cruz Alta, RS, após residir três anos no Estado de Alagoas.
Cristina Krauspenhar, Cristiane Beck, Vitor Sperotto, Aline Alves da Silva, Rodrigo Bastos, Lauro Rodrigues   +5 more
doaj   +1 more source

Evaluation of the Cutaneous Immunological Milieu Before and After Treatment With Meglumine Antimoniate in Dogs Naturally Affected by Leishmaniosis due to Leishmania infantum

Veterinary Dermatology, Volume 37, Issue 3, Page 455-463, June 2026.
Background: Canine leishmaniosis (CanL) is a zoonotic disease of variable severity. The typical immune response is driven by an exaggerated humoral immune response. Protective immunity is mediated by pro‐inflammatory cytokines that enhance macrophage leishmanicidal activity. Objective: To evaluate the cutaneous and the systemic immune responses as well
M. Platenik, A. Di Loria, L. Archer, M. Saridomichelakis, A. S. Benvenuto, D. Santoro   +5 more
wiley   +1 more source

Exploring 6‐Hydroxy‐3‐Aryl/Heteroarylcoumarins as Promising Candidates Against Trypanosoma cruzi

ChemMedChem, Volume 21, Issue 9, 14 May 2026.
New therapies are urgently needed for Chagas disease, and screening of 6‐hydroxy‐3‐aryl/heteroarylcoumarin derivatives identified highly selective compounds with potent activity against T. cruzi. In particular, derivative 1f showed submicromolar trypomastigote potency, dual‐stage activity, and inhibition of amastigote‐to‐trypomastigote differentiation,
C. N. Pereira, L. da Silva Lara, S. da Costa Lanera, T. Pérez de Souza, M. C. de Souza Pereira, G. L. Delogu, M. Silva dos Santos, M. J. Matos   +7 more
wiley   +1 more source