Results 51 to 60 of about 10,019 (223)

Canine Leishmaniasis in Rio de Janeiro, Brazil (2000–2015): Taxonomic Characterisation of Etiological Agents and Geospatial Case Analysis

open access: yesZoonoses and Public Health, Volume 73, Issue 4, Page 314-325, June 2026.
ABSTRACT Introduction Canine Leishmaniasis is a vector‐borne zoonotic disease caused by several species of protozoa of the genus Leishmania. In the state of Rio de Janeiro (RJ), Leishmania braziliensis is the most prevalent species causing tegumentary leishmaniasis (TL) and Leishmania infantum is the main causative agent of visceral leishmaniasis (VL).
Luciana de Freitas Campos Miranda   +10 more
wiley   +1 more source

The Leishmania donovani complex: genotypes of five metabolic enzymes (ICD, ME, MPI, G6PDH, and FH), new targets for multilocus sequence typing.

open access: yes, 2007
Flagellates of the Leishmania donovani complex are causative agents of human cutaneous and visceral leishmaniasis. The complex is comprised of L. donovani, Leishmania infantum and Leishmania archibaldi, although the latter is not now considered to be a ...
Jirků, Milan   +5 more
core   +1 more source

Molecular mechanisms of drug resistance in natural Leishmania populations vary with genetic background [PDF]

open access: yes, 2012
The evolution of drug-resistance in pathogens is a major global health threat. Elucidating the molecular basis of pathogen drug-resistance has been the focus of many studies but rarely is it known whether a drug-resistance mechanism identified is ...
Sylke Müller   +39 more
core   +1 more source

The 245 kb amplified chromosome of Leishmania (V.) braziliensis contains a biopterin transporter gene

open access: yesMemorias do Instituto Oswaldo Cruz, 2003
Leishmania (V.) braziliensis M2903 presents a small linear and stable 245 kb chromosome originating from a genomic amplification. Similar amplifications present in other species of Leishmania contain a gene coding for a biopterin transporter.
MCR Sampaio, YM Traub-Cseko
doaj   +1 more source

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

open access: yesChemMedChem, 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   +7 more
wiley   +1 more source

Chicken blood provides a suitable meal for the sand fly Lutzomyia longipalpis and does not inhibit Leishmania development in the gut [PDF]

open access: yes, 2010
Background The aim of this study was to address the role of chickens as bloodmeal sources for female Lutzomyia longipalpis and to test whether chicken blood is harmful to Leishmania parasite development within the sand flies.
Diaz-Albiter Hector M   +27 more
core   +1 more source

Infecção experimental de Lutzomyia whitmani em cães infectados com Leishmania braziliensis braziliensis Experimental infection of Lutzomya whitmani in dogs infected with Leishmania braziliensis brasiliensis

open access: yesMemorias do Instituto Oswaldo Cruz, 1986
Lutzomyia (N.) whitmani foi infectada em lesões leishmanióticas de três de nove cães parasitados por Leishmania braziliensis braziliensis . Os índices de infecção desses flebotomíneos foram 8,3% (1/12), 7,1% (1/14) e 1,8% (3,160), respectivamente.
Julio A. Vexenat   +2 more
doaj   +1 more source

Structural basis of secreted acid phosphatase polymerization in the Leishmania parasite

open access: yesProtein Science, Volume 35, Issue 5, May 2026.
Abstract Enzymes that assemble into filaments typically transition between protomeric and polymeric states in response to cellular conditions. In contrast, the secreted acid phosphatase (SAP) of Leishmania, one of the most abundant extracellular glycoproteins produced by the parasite and regarded as a major virulence factor in the neglected tropical ...
Priyanka Bose   +4 more
wiley   +1 more source

An outbreak of human Leishmania (Viannia) braziliensis infection [PDF]

open access: yesMemórias do Instituto Oswaldo Cruz, 1991
The occurrence of acute cutaneous leishmaniasis among inhabitants of 10 farms within 10 Km of the hamlet of Corte de Pedra, Bahia, Brazil was studied prospectively from 1984-1989. A mean population of 1,056 inhabitants living in 146 houses were visited every 6 months and the number of skin ulcers recorded.
França, F.   +12 more
openaire   +5 more sources

Axenic cultivation and characterization of Leishmania mexicana amastigote-like forms [PDF]

open access: yes, 1992
A new method is described which has made possible the long-term axenic cultivation of Leishmania mexicana amastigote-like forms in Schneider's Drosophila medium supplemented with 20% (v/v) foetal calf serum.
Coombs, G H   +3 more
core  

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