Results 1 to 10 of about 1,959 (160)

Insecticidal Potential of Aniba canelilla (H.B.K.) Mez Essential Oil Against Aedes aegypti: Larvicidal and Adulticidal Activities, Mechanism of Action, and Formulation Development [PDF]

open access: yesPlants
Control of Aedes aegypti, the primary vector of arboviruses such as dengue, Zika, and chikungunya, is increasingly difficult due to resistance to synthetic insecticides and environmental concerns.
Jefferson D. da Cruz   +5 more
doaj   +2 more sources

Os produtos naturais e a química medicinal moderna [PDF]

open access: yesQuimica Nova, 2006
Natural products have been utilized by humans since ancient times and the relief and cure of their diseases was the first purpose for using natural products in medicine. The history of the oriental and occidental civilizations is very rich in examples of the utilization of natural products in medicine and health care.
Claudio Viegas   +2 more
exaly   +6 more sources

Iridoids from Himatanthus sucuuba Modulate Feeding Behavior of Lutzomyia longipalpis: Integrated Experimental and Computational Approaches [PDF]

open access: yesMolecules
Control strategies for leishmaniasis increasingly target sand fly vectors through sugar feeding approaches containing bioactive compounds. This study investigated the behavioral and toxicological effects of the iridoids plumericin and isoplumericin ...
Maíra M. H. Almeida   +7 more
doaj   +2 more sources

Produtos naturais: atualidade, desafios e perspectivas [PDF]

open access: yesQuimica Nova, 2002
This article offers an overview on the historical facts and the recent state of art of Chemistry of Natural Products which, in the course of 25 years of SBQ, have led to the present development of this area in Brazil. In addition, this article deals with the last trends on Natural Products in Brazil and also in developed countries.
Angelo C Pinto   +2 more
exaly   +5 more sources

Cobalt-Catalyzed C–Se Bond Activation: Cross-Coupling of Organoselenides with Grignard Reagents [PDF]

open access: yesMolecules
Herein, we report a cobalt-catalyzed cross-coupling of organoselenides with Grignard reagents using simple CoCl2 as the catalyst. This efficient method accommodates a broad scope of selenides, including vinyl, aryl, heteroaryl, and alkynyl derivatives ...
Tais V. de Souza Pinto   +10 more
doaj   +2 more sources

Advances on Functional Foods with Antioxidant Bioactivity [PDF]

open access: yesFoods
Oxidative stress (OS), an imbalance between the production of free radicals and the body’s ability to detoxify them, has been linked to a wide range of diseases [...]
Carla S. Carneiro, Igor A. Rodrigues
doaj   +2 more sources

Produtos medicinais naturais [PDF]

open access: yesRevista Latinoamericana de Psicopatologia Fundamental, 2002
Erney Plessmann de Camargo   +1 more
doaj   +2 more sources

Fatores de heterogeneidade do potencial antioxidante da própolis da abelha Apis mellifera: uma revisão [PDF]

open access: yesInfarma: Pharmaceutical Sciences, 2022
As abelhas produzem a própolis a partir de materiais balsâmicos coletados das plantas. Trata-se de um produto natural com diversas funções dentro da colmeia. Atualmente, a ciência já comprovou várias ações biológicas desse material, tal como antioxidante.
Fernanda Baldomir da Cruz   +5 more
doaj   +1 more source

Etnofarmacologia, fitoquímica, toxicologia e atividades anti-inflamatória e antinociceptiva de folhas de Psidium guajava L.: uma revisão [PDF]

open access: yesInfarma: Pharmaceutical Sciences, 2023
Psidium guajavaL. (Myrtaceae), conhecida como goiabeira, é uma importante espécie vegetal com diversos valores medicinais. Na medicina tradicional, é utilizada para o tratamento de uma série de doenças, como distúrbios gastrointestinais, processos ...
Renata Coppini de Almeida   +5 more
doaj   +1 more source

Evaluation of the Sedative and Anesthetic Effects of Protium heptaphyllum Essential Oil in Juvenile Colossoma macropomum (Cuvier 1818): A Behavioral, Electrophysiological, and Plasma Glucose Study [PDF]

open access: yesACS Omega
Luciana Eiró-Quirino   +5 more
doaj   +2 more sources

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