Leishmanicidal Activity
Mostrando 1-12 de 99 artigos, teses e dissertações.
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1. Leishmanicidal and Antimicrobial Activities of 4-Quinolone Alkaloids from Stems of the Medicinal Plant Waltheria indica (Malvaceae) and Their Chemotaxonomic Significance
A chemical investigation of the stem of Waltheria indica (Malvaceae) yielded twelve 4-quinolone alkaloids, which were primarily waltheriones. These were waltherione A (1), waltherione B (2), waltherione C (3), waltherione G (4), waltherione H (5), waltherione J (6), waltherione L (7), waltherione P (8), chamaedrone (9), 8-deoxy-antidesmone (10), antidesmone
Journal of the Brazilian Chemical Society. Publicado em: 2022
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2. Molecular Modeling and Chemical Synthesis of New Safrol Oxime Ether Derivatives
Leishmaniasis, a neglected tropical disease with a high worldwide incidence, is considered a public health issue in Minas Gerais and Brazil, with a high degree of morbidity, not to mention the lack of therapeutic arsenal. The cysteine protease (rCPB2.8) and cyclin dependent kinase (CRK3), important enzymes for the parasite’s feasibility, were the targets c
J. Braz. Chem. Soc.. Publicado em: 2021-07
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3. Isolation and characterization of sesquiterpene lactones from Calea uniflora Less. and their leishmanicidal and trypanocidal activities
Calea uniflora Less., commonly known in Brazil as “erva-de-lagarto” and “arnica-da-praia”, is used in folk medicine to treat internal and external bruises and as anti-inflammatory. However, despite the popular use there is a lack of information in terms of isolation and biological evaluation of its secondary metabolites. Thus, the aims of this study
Quím. Nova. Publicado em: 2021-06
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4. Synthesis, in silico Study and Antileishmanial Evaluation of New Selenides Derived from 7-Chloro-quinoline and N-Phenylacetamides
This study describes a virtual screening performed for two series of selenides (28 compounds), derived from N-phenylacetamides chlorides and 7-chloro-quinoline, to determine their potential for leishmanicidal activity against Leishmania amazonensis and Leishmania donovani. Seven compounds were predicted as potential leishmanicides; therefore, they were synth
J. Braz. Chem. Soc.. Publicado em: 2021-04
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5. Unexpected Rearrangement and Aromatization on Dehydration Reaction of the Bioactive Diterpenequinone 7α-Hydroxyroyleanone
7a-Hydroxyroyleanone is a bioactive diterpene isolated from leaves of Tetradenia riparia, active against tuberculosis and T. cruzi. In order to use this compound as starting material for the synthesis of compounds with enhanced bioactivity we aimed the dehydration of the 7-alpha-hydroxyl group of royleanone. The reaction performed in acetic acid and hydrochl
J. Braz. Chem. Soc.. Publicado em: 2020-03
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6. Evaluation of triterpenes derivatives in the viability of Leishmania amazonensis and Trichomonas vaginalis
Trichomonas vaginalis and Leishmania spp. are protozoal species responsible for millions of cases of parasitic diseases worldwide. Considering the potential of natural products and the need for more effective and less toxic alternatives to treat trichomoniasis and leishmaniasis, this study aimed to evaluate the effect of two series of triterpenes derivatives
Braz. J. Pharm. Sci.. Publicado em: 20/12/2019
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7. A Comparative Study on Chemical Composition, Antileishmanial and Cytotoxic Activities of the Essential Oils from Leaves of Guarea macrophylla (Meliaceae) from Two Different Regions of São Paulo State, Brazil, Using Multivariate Statistical Analysis
Meliaceae representatives are economically important in several aspects including the production of highly prized woods (mahogany, cedar, etc.), constituents for cosmetics, and insecticides. The present study aimed to verify the chemical composition as well as leishmanicidal and cytotoxic potential of essential oils from leaves of two different populations o
J. Braz. Chem. Soc.. Publicado em: 04/07/2019
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8. Increased leishmanicidal activity of alveolar macrophages from mature horses with mild equine asthma
RESUMO Os macrófagos alveolares (MAs) são uma parte essencial dos mecanismos de defesa dentro dos pulmões e sua atividade fagocítica é importante para a homeostase desse órgão. A capacidade fagocitária dos MAs obtidos do lavado broncoalveolar de 17 equinos adultos, sem raça definida (oito saudáveis e nove com diagnóstico de asma equina leve), foi
Arq. Bras. Med. Vet. Zootec.. Publicado em: 14/06/2019
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9. Study on Experimental Leishmanicidal Activity and in silico of Cytochalasin B
Leishmaniasis is a neglected infectious disease caused by different species of the Leishmania parasite and is one of the major public health problems in developing countries. Despite the progress in fundamental knowledge about the Leishmania parasite, current therapy against leishmaniasis is still unsatisfactory due to limited efficacy, prolonged treatment,
J. Braz. Chem. Soc.. Publicado em: 2019-03
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10. Second-generation pterocarpanquinones: synthesis and antileishmanial activity
Abstract Background: Despite the development of new therapies for leishmaniasis, among the 200 countries or territories reporting to the WHO, 87 were identified as endemic for Tegumentary Leishmaniasis and 75 as endemic for Visceral Leishmaniasis. The identification of antileishmanial drug candidates is essential to fill the drug discovery pipeline for leis
J. Venom. Anim. Toxins incl. Trop. Dis. Publicado em: 17/12/2018
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11. Activity of the antiarrhythmic drug amiodarone against Leishmania (L.) infantum: an in vitro and in vivo approach
Abstract Background: Considering the high toxicity and limited therapies available for treating visceral leishmaniasis (VL), the drug repositioning approach represents a faster way to deliver new therapies to the market. Methods: In this study, we described for the first time the activity of a potent antiarrhythmic, amiodarone (AMD), against L. (L.)infantu
J. Venom. Anim. Toxins incl. Trop. Dis. Publicado em: 29/11/2018
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12. Phenolic Composition and Leishmanicidal Activity of Red Propolis and Dalbergia ecastaphyllum (L.) Taub (Fabaceae) Extracts from Sergipe, Brazil
ABSTRACT Leishmaniasis is a parasitic disease caused by protozoa of the Leishmania genus. It may manifest in visceral and tegumentary forms, and pentavalent antimonials are the first choice drugs used for the treatment. Frequently these drugs show low efficiency and high toxicity to mammalian host. The present study describes the chemical profile and the in
Braz. arch. biol. technol.. Publicado em: 06/08/2018