Results: 26

Successful treatment of diffuse cutaneous leishmaniasis caused by Leishmania amazonensis

An. bras. dermatol; 96 (5), 2021
Abstract Diffuse cutaneous leishmaniasis is a rare universal disease associated with an inadequate host cell immune response, caused by different species: infantum, aethiopica, major, mexicana, and others, which presents the challenge of a poor therapeutic response. In Brazil, it is caused by L. amazonen...

Efficacy of imiquimod 5% cream as first-line management in cutaneous leishmaniasis caused by Leishmania mexicana

Abstract Cutaneous leishmaniasis (CL) involves several differential diagnoses as it lacks a gold standard diagnostic test. Its diagnosis is easier in endemic regions; however, many cases come from travelers to endemic areas. A 22-year-old patient, who had recently visited Oaxaca, Mexico, developed two as...

Identificação de proteínas imunodominantes provenientes dos subgêneros Viannia e Leishmania como potenciais candidatos vacinais pan específicos no controle das leishmanioses

As leishmanioses são causadas por cerca de 20 espécies de Leishmania e se apresentam em diversas formas clínicas, que podem variar de branda a muito grave. Elas afetam milhões de pessoas e até então não existem medidas de controle eficazes. Assim, a imunização da população seria uma alternativ...

Efficacy of the 7-chloro-4-(3-hydroxy-benzilidenehydrazo)quinoline derivative against infection caused by Leishmania amazonensis

Abstract INTRODUCTION: The drugs currently available for leishmaniasis treatment have major limitations. METHODS: In vitro and in vivo studies were performed to evaluate the effect of a quinoline derivative, Hydraqui (7-chloro-4-(3-hydroxy-benzilidenehydrazo)quinoline, against Leishmania amazonensis. I...

Development of Leishmania mexicana in Lutzomyia longipalpis in the absence of sugar feeding

Mem. Inst. Oswaldo Cruz; 114 (), 2019
The leishmaniases are caused by Leishmania parasites and transmitted through the bites of phlebotomine sand flies. During parasite development inside the vector's midgut, promastigotes move towards the stomodeal valve, a mechanism that is crucial for transmission. It has been reported that the sugar meal...

Caracterização de α-glicosidases de Lutzomyia longipalpis: atividades enzimáticas, expressão gênica e modulação por Leishmania mexicana

Lutzomyia longipalpis é o vetor de Leishmania infantum, um dos agentes causadores da leishmaniose visceral. Os flebotomíneos adultos possuem uma dieta rica em açúcares, essencial para atender às demandas energéticas necessárias ao desenvolvimento; as fêmeas, além de açúcares, também se alimen...

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

Mem. Inst. Oswaldo Cruz; 113 (4), 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 therapeutic interventions. Because translocator pr...

N-acetyl-cysteine inhibits liver oxidative stress markers in BALB/c mice infected with Leishmania amazonensis

Mem. Inst. Oswaldo Cruz; 112 (2), 2017
BACKGROUND Leishmaniasis is a parasitosis caused by several species of the genus Leishmania. These parasites present high resistance against oxidative stress generated by inflammatory cells. OBJECTIVES To investigate oxidative stress and molecular inflammatory markers in BALB/c mice infected with L. a...

Synthesis, antileishmanial activity and QSAR studies of 2-chloro- N -arylacetamides

ABSTRACT We describe herein the synthesis and evaluation of the antileishmanial activity against promastigote forms of Leishmania amazonensis and cytotoxicity to murine macrophages of a series of 2-chloro-N-arylacetamide derivatives. All compounds were active, except one (compound 3). Compound 5 presente...

Canine cutaneous leishmaniasis by Leishmania (Viannia) braziliensis in an agricultural settlement, endemic area for leishmaniasis

Cutaneous leishmaniasis has several species of Leishmania as agents, and a wide variety of wild and domestic animals as hosts and different species of phlebotomines as vectors. A case of cutaneous leishmaniasis in a dog coming from an agricultural settlement is described. This is the first report of para...