Results 51 to 60 of about 6,625 (182)

Potential vectors of Leishmaniases in the Environmental Protection Area and Tinguá Federal Biological Reserve, Municipality of Nova Iguaçu, Rio de Janeiro, Brazil

open access: yesMedical and Veterinary Entomology, Volume 40, Issue 2, Page 246-259, June 2026.
This study was to describe the composition of sand fly fauna, detect potential vectors of Leishmania spp. in the Tinguá district, an ATL endemic, Rio de Janeiro, Brazil. Seven species of vectorial importance in the epidemiological cycle of leishmaniasis was observed: Nyssomyia intermedia, Migonemyia migonei, Pintomyia fischeri, Psychodopygus hirsutus ...
Antônio L. F. Santana   +9 more
wiley   +1 more source

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

Characterization of an extracellular serine protease ofLeishmania (Leishmania) amazonensis

open access: yesParasitology, 2005
A serine protease was purified 942-fold from culture supernatant ofL. amazonensispromastigotes using (NH4)2SO4precipitation followed by affinity chromatography on aprotinin-agarose and continuous elution electrophoresis by Prep Cell, yielding a total recovery of 61%.
R E, Silva-Lopez   +2 more
openaire   +2 more sources

Inoculation of the Leishmania infantum HSP70-II Null Mutant Induces Long-Term Protection against L. amazonensis Infection in BALB/c Mice

open access: yesMicroorganisms, 2021
Leishmania amazonensis parasites are etiological agents of cutaneous leishmaniasis in the New World. BALB/c mice are highly susceptible to L. amazonensis challenge due to their inability to mount parasite-dependent IFN-γ-mediated responses.
Manuel Soto   +6 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

In vitro evaluation of the anti-leishmanial activity and toxicity of PK11195

open access: yesMemorias do Instituto Oswaldo Cruz, 2018
BACKGROUND Leishmaniasis, one of the most neglected diseases, is a serious public health problem in many countries, including Brazil. Currently available treatments require long-term use and have serious side effects, necessitating the development of new
Carlos Eduardo Sampaio Guedes   +8 more
doaj   +1 more source

Nano‐Encapsulated Cinnamomum cassia Essential Oil in Combination With Fluconazole Exhibits Synergistic Activity Against Fluconazole‐Resistant Nakaseomyces glabratus and Pichia kudriavzevii

open access: yesVeterinary Medicine and Science, Volume 12, Issue 3, May 2026.
Nano‐encapsulated Cinnamomum cassia essential oil (nano‐CC‐EO) showed in vitro antifungal activity against fluconazole‐resistant Nakaseomyces glabratus and Pichia kudriavzevii clinical isolates. Checkerboard assays revealed synergistic or additive interactions between nano‐CC‐EO and fluconazole in several isolates, without evidence of antagonism. These
Mehrdad Seifi   +5 more
wiley   +1 more source

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

Peptides as a Therapeutic Alternative Against Leishmaniasis: A Scoping Review

open access: yesChemical Biology &Drug Design, Volume 107, Issue 5, May 2026.
This scoping review of 79 studies identified 231 antimicrobial peptides with anti‐Leishmania activity, including natural‐derived and synthetic peptides (inspired by natural sources or developed through rational design). Most were evaluated in vitro against promastigote and/or amastigote forms, with synthetic peptides showing a more promising effect ...
Maria Eduarda da Veiga Oliveira   +3 more
wiley   +1 more source

Active sesquiterpene lactones against Leishmania amazonensis and Leishmania braziliensis [PDF]

open access: yesNatural Product Research, 2016
Seventeen sesquiterpene lactones (SLs) isolated from five species of the tribe Vernonieae were evaluated for their in vitro activity against promastigotes of Leishmania amazonensis and Leishmania braziliensis. Additionally, a quantitative structure activity relationship has been made, since all these natural compounds were found to have potent to mild ...
A Sosa   +7 more
openaire   +3 more sources

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