Results 11 to 20 of about 326,787 (224)

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

Chem 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, Calixto SD, Simão TLBV, Lassunskaia EB, de Homobono de Brito Moura P, Leal IRC, Muzitano MF, Pinto SC.   +7 more
europepmc   +2 more sources

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

Chem 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, Cardoso AF, Sahm BDB, Costa-Lotufo LV, Bitencourt JAP, Lopes NP.   +5 more
europepmc   +2 more sources

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

Chem 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, Machado FP, Brito MF, de Souza TA, Abreu LS.   +4 more
europepmc   +2 more sources

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

Current 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, Lavínia de Carvalho Brito, André Mesquita Marques, Flávia da Cunha Camillo, Maria Raquel Figueiredo   +4 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

Journal 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, Ferruccio Poli, Alan Menezes do Nascimento, Aline Soares da Silva, Thamirys Silva da Fonseca, Marcos Vinicius Toledo, Rosineide Costa Simas, Andréa Rodrigues Chaves, Gilda Guimarães Leitão, Suzana Guimarães Leitão   +9 more
doaj   +1 more source

Controle da podridão cinzenta da maçã por produtos naturais biologicamente ativos [PDF]

, 2010
Indexación: Web of Science; ScieloBiorend SC (chitosan), BC-1000 EC (grapefruit extract plus bioflavonoids) and ECO-100 SC (bioflavonoids plus organic acids, citric phytoalexins, fatty acids, glycerides and sugars), respectively, suppressed grey rot of ...
Di Piero, Robson M., Henríquez, José L., Herrera, Rodrigo, López, Catalina, Montealegre, Jaime R., Polanco, Rubén, Pérez, Luz M., Stadnik, Marciel J.   +7 more
core   +2 more sources

Target Isolation of Prenylated Isoflavonoids and Pterocarpans from Acosmium diffusissimum Using LC–MS/MS-Based Molecular Networking [PDF]

ACS Omega
Gabriela Ribeiro de Sousa, Natanael Ramos de Lima Teles, Carlos Vinicius Azevedo da Silva, Mariana Costa Aragão, Domingos Benício Oliveira Silva Cardoso, Francisco Allysson Assis Ferreira Gadelha, Marcia Regina Piuvezam, Josean Fechine Tavares, Marcelo Sobral daSilva, José Maria Barbosa Filho   +9 more
doaj   +2 more sources

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

BMC 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, Iara Leão Luna de Souza, Joedna Cavalcante Pereira, Luiz Henrique César Vasconcelos, Rafael de Almeida Travassos, Barbara Viviana de Oliveira Santos, Bagnólia Araújo da Silva   +6 more
doaj   +1 more source

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

BMC 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, Déborah Ribeiro Pessoa Meireles, Tatianne Mota Batista, Tatyanna Kelvia Gomes de Sousa, Vivianne Mendes Mangueira, Renata Albuquerque de Abrantes, João Carlos Lima Rodrigues Pita, Aline Lira Xavier, Vicente Carlos Oliveira Costa, Leônia Maria Batista, Marcelo Sobral da Silva, Marianna Vieira Sobral   +11 more
doaj   +1 more source

Environmental and phytohormone modulation of organ-specific specialized metabolite profiles in the dryland tree Erythrina velutina. [PDF]

Plant Biol (Stuttg)
Erythrina velutina organ‐specific specialized metabolism is modulated by environmental stress and phytohormones to mitigate effects of the harsh semi‐arid habitat. Abstract Erythrina velutina is a tree that thrives in the shallow rocky soils of the dry and hot Caatinga, a unique Brazilian biome.
Chacon DS, Bonilauri B, da Costa CT, Vilasboa J, Koetz M, Pinto L, Zuanazzi JAS, Giordani RB, Fett-Neto AG.   +8 more
europepmc   +2 more sources