Results 11 to 20 of about 1,978 (176)

Antimycobacterial and Nitric Oxide Production Inhibitory Activities of Goyazensolide and Centratherin Isolated From Eremanthus crotonoides by High-Speed Countercurrent Chromatography. [PDF]

open access: yesChem Biodivers
ABSTRACT In this study, bioassay‐guided fractionation of the ethanolic extract from Eremanthus crotonoides leaves enabled the isolation of two bioactive sesquiterpene lactones, centratherin and goyazensolide, which were evaluated for their antimycobacterial and anti‐inflammatory properties.
da Rocha Ximenes NG   +7 more
europepmc   +2 more sources

Microbial Chemical Diversity and Cytotoxic Potential From Brazilian Ferruginous Caves: A Pioneering Metabolomic Survey. [PDF]

open access: yesChem Biodivers
ABSTRACT Cave microbiomes represent a rich yet understudied source of chemical diversity with biotechnological properties. Microorganisms in these environments thrive under extreme conditions such as darkness, oligotrophy, and high concentrations of inorganic matter like iron ore.
Kato NN   +5 more
europepmc   +2 more sources

Chemical Constituents and Biological Activities of Oxandra (Annonaceae): A Review. [PDF]

open access: yesChem Biodivers
ABSTRACT Oxandra (Annonaceae) comprises 29 species distributed across South and Central America. Despite this diversity, the genus remains under‐investigated. This study presents the first comprehensive review of the chemical composition and biological activities of Oxandra species, utilizing databases such as SciFinder, ScienceDirect, PubMed, and ...
Lopes RC   +4 more
europepmc   +2 more sources

Hibiscus sabdariffa L.: ESTABILIDADE DA ATIVIDADE ANTIOXIDANTE E CONSTITUINTES QUÍMICOS APÓS PREPARO DO CHÁ [PDF]

open access: yesInfarma: Pharmaceutical Sciences, 2018
Hibiscus sabdariffa L. is used due to its peculiar taste and its healing properties. The literature reports antioxidant, anti-inflammatory and antidiabetic properties for this plant. Hibiscus is used as a tea, obtained from the infusion of parts of the
Andressa Ândria Martins RIBEIRO   +5 more
doaj   +1 more source

Avaliação das atividades antioxidante e fotoprotetora in vitro de partições do extrato metanólico de Mitracarpus frigidus (Rubiaceae)

open access: yesHU Revista, 2021
Introdução: A exposição solar excessiva pode ocasionar lesões cutâneas, principalmente devido à presença dos raios ultravioletas (UVs). A incidência de lesões na pele pode ser reduzida através do uso de filtro solares.
Karollina Chaves Ferreira   +3 more
doaj   +1 more source

In vitro α-glucosidase inhibition by Brazilian medicinal plant extracts characterised by ultra-high performance liquid chromatography coupled to mass spectrometry

open access: yesJournal of Enzyme Inhibition and Medicinal Chemistry, 2022
Aiming at finding natural sources of antidiabetics agents, 15 extracts from Brazilian medicinal plants of the Atlantic Forest and Amazon region were tested against α-glucosidase enzyme.
Mariacaterina Lianza   +9 more
doaj   +1 more source

Bioactive limonoids from Carapa guianensis seeds oil and the sustainable use of its by-products

open access: yesCurrent Research in Toxicology, 2023
Carapa guianensis (Andiroba, Meliaceae) is considered a multipurpose tree. In Brazil, Indigenous people have used it as insect repellent and in the treatment of various diseases.
Vagner Pereira da Silva   +4 more
doaj   +1 more source

Tocolytic action and underlying mechanism of galetin 3,6-dimethyl ether on rat uterus

open access: yesBMC Complementary and Alternative Medicine, 2017
Background Galetin 3,6-dimethyl ether (FGAL) is a flavonoid isolated from aerial parts of Piptadenia stipulacea. Previously, FGAL was shown to inhibit both carbachol- and oxytocin-induced phasic contractions in the rat uterus, which was more potent with ...
Juliana da Nóbrega Carreiro   +6 more
doaj   +1 more source

Toxicity and antitumor potential of Mesosphaerum sidifolium (Lamiaceae) oil and fenchone, its major component

open access: yesBMC Complementary and Alternative Medicine, 2017
Background The essential oil from Mesosphaerum sidifolium (L’Hérit.) Harley & J.F.B.Pastore (syn. Hyptis umbrosa), Lamiaceae (EOM), and its major component, have been tested for toxicity and antitumor activity.
Thaísa Leite Rolim   +11 more
doaj   +1 more source

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