Results 21 to 30 of about 4,317 (152)

Assessment of Acute and Chronic Toxicity in Wistar Rats (Rattus norvegicus) and New Zealand Rabbits (Oryctolagus cuniculus) of an Enriched Polyphenol Extract Obtained from Caesalpinia spinosa. [PDF]

J Toxicol
Although herbal drugs are often considered safe for consumption, there is increasing evidence that some can generate undesirable health effects. However, polyphenols found in certain plants have been shown to provide a range of benefits for human health.
Ballesteros-Ramírez R, Lasso P, Urueña C, Saturno J, Fiorentino S.   +4 more
europepmc   +2 more sources

The color of greater flamingo feathers fades when no cosmetics are applied

Ecology and Evolution, Volume 11, Issue 20, Page 13773-13779, October 2021., 2021
Abstract Greater flamingos use cosmetic coloration by spreading uropygial secretions pigmented with carotenoids over their feathers, which makes the plumage redder. Because flamingos inhabit open environments that receive direct solar radiation during daytime, and carotenoids bleach when exposed to solar radiation, we expected that the plumage color ...
Maria Cecilia Chiale, Miguel A. Rendón, Sophie Labaude, Anne‐Sophie Deville, Juan Garrido‐Fernández, Antonio Pérez‐Gálvez, Araceli Garrido, Manuel Rendón‐Martos, Arnaud Béchet, Juan A. Amat   +9 more
wiley   +1 more source

Antioxidant Activities of Commiphora leptophloeos (Mart.) J. B. Gillett) (Burseraceae) Leaf Extracts Using In Vitro and In Vivo Assays

Oxidative Medicine and Cellular Longevity, Volume 2021, Issue 1, 2021., 2021
Commiphora leptophloeos is widely used in folk medicine without any scientific basis. Considering this, the aim of this study was to evaluate the chemical profile and the antioxidant activity of C. leptophloeos leaf extracts using in vitro and in vivo assays.
Maria Lúcia da Silva Cordeiro, Ana Raquel Carneiro Ribeiro, Luciana Fentanes Moura de Melo, Lucas Felipe da Silva, Gabriel Pereira Fidelis, Larissa Marina Pereira Silva, Ricardo Basílio de Oliveira Caland, Cesar Orlando Muñoz Cadavid, Cícero Flavio Soares Aragão, Silvana Maria Zucolotto, Riva de Paula Oliveira, Deborah Yara Alves Cursino dos Santos, Hugo Alexandre Oliveira Rocha, Katia Castanho Scortecci, Maria R. Ciriolo   +14 more
wiley   +1 more source

Inserción de estudiantes de educación secundaria (ciclo diversificado) en investigaciones de bioactividad de productos naturales

Revista Educación, 2021
El involucramiento educativo en labores de investigación es trascendental para que el estudiantado se relacione con las tareas y objetivos trazados a corto y largo plazo.
Vilma del V. Lanza Castillo, Willian Celestino Henríquez Guzmán, Lolymar de Los Ángeles Romero Maza, Miguel Israel Bennasar García   +3 more
doaj   +1 more source

Extraction of γ-oryzanol from rice bran Extração de γ-oryzanol de farelo de arroz

Ciência e Agrotecnologia, 2012
γ-oryzanol, a phytochemical, has antioxidant activities and potential health benefits. In this study, we aimed to develop a method for extracting high amounts of γ-oryzanol from rice bran and for verifying its stability in different solvents ...
Renata Heidtmann-Bemvenuti, Náthali Saião Nora, Eliana Badiale-Furlong   +2 more
doaj   +1 more source

Siparuna guianensis Aublet (negramina): uma revisão Siparuna guianensis Aublet ("negramina"): a review

Revista Brasileira de Plantas Medicinais, 2010
As pesquisas realizadas a partir de recursos genéticos de espécies medicinais nativas somente serão aplicadas se o material genético estiver seguro quanto à sobrevivência e disponibilidade.
C.M.A Valentini, C.E Rodríguez-Ortíz, M.F.B Coelho   +2 more
doaj   +1 more source

Prospecção química, atividade antioxidante, anticolinesterásica e antifúngica de extratos etanólicos de espécies de Senna Mill. (Fabaceae)

Hoehnea, 2022
RESUMO O objetivo deste trabalho foi avaliar o perfil químico, teor de fenóis totais e as atividades antioxidante, antiacetilcolinesterásica e antifúngica dos extratos etanólicos das folhas (EEF) e do caule (EEC) de cinco espécies de Senna, bem como ...
Andréa Maria Neves, Selene Maia de Morais, Hélcio Silva dos Santos, Marcílio Matos Ferreira, Ricardo Carneiro Vera Cruz, Elnatan Bezerra de Souza, Lúcia Betânia da Silva Andrade, Raquel Oliveira dos Santos Fontenelle   +7 more
doaj   +1 more source

Coccoloba alnifolia Leaf Extract as a Potential Antioxidant Molecule Using In Vitro and In Vivo Assays

Oxidative Medicine and Cellular Longevity, Volume 2020, Issue 1, 2020., 2020
The genus Coccoloba is widely used in traditional folk medicine, but few scientific data exist for this genus. The goal of this study was to characterise the chemical composition and antioxidant activities of C. alnifolia leaf extracts using in vitro and in vivo assays.
Luciana Fentanes Moura de Melo, Dayanne Lopes Gomes, Lucas Felipe da Silva, Larissa Marina Pereira Silva, Marina Lopes Machado, Cesar Orlando Muñoz Cadavid, Silvana Maria Zucolotto, Riva de Paula Oliveira, Deborah Yara Alves Cursino dos Santos, Hugo Alexandre Oliveira Rocha, Katia Castanho Scortecci, Ana Cipak Gasparovic   +11 more
wiley   +1 more source

Potencial antioxidante e antimicrobiano de espécies da família Asteraceae Antioxidant and antimicrobial potential of Asteraceae species

Revista Brasileira de Plantas Medicinais, 2011
Espécies da família Asteraceae são amplamente utilizadas na medicina popular para diversos fins terapêuticos. Neste contexto, este estudo teve por objetivo averiguar a atividade antimicrobiana e antioxidante in vitro de extratos metanólicos de plantas ...
R.L Fabri, M.S Nogueira, L.B Dutra, M.L.M Bouzada, E Scio   +4 more
doaj   +1 more source

Preferential Activity of Petiveria alliacea Extract on Primary Myeloid Leukemic Blast

Evidence-Based Complementary and Alternative Medicine, Volume 2020, Issue 1, 2020., 2020
The need for new therapeutic approaches to improve the response in acute leukemia (AL), either by directing therapy or with new therapeutic alternatives, has been a research and clinical interest topic. We evaluated whether blasts from AL patients were sensitive ex vivo to the induction chemotherapy and whether the extracts of Petiveria alliacea (Anamu
Ricardo Ballesteros-Ramírez, Eliana Aldana, María Victoria Herrera, Claudia Urueña, Laura Yinneth Rojas, Luis Fernando Echeverri, Geison Modesti Costa, Sandra Quijano, Susana Fiorentino, Sandrina A. Heleno   +9 more
wiley   +1 more source