Results 41 to 50 of about 568 (157)

Bio-guided Isolation of a New Sesterterpene from

Natural Product Communications, 2015
Serjania goniocarpa is a plant used in Mayan traditional medicine as a remedy for the treatment of cancer-like symptoms. Bio-guided fractionation of the methanol extract of the leaves led to the isolation of an α- and β-amyrin mixture, palmitic acid ...
Carlos Quintal-Novelo, Luis W. Torres-Tapia, Rosa Moo-Puc, Sergio R. Peraza-Sanchez   +3 more
doaj   +1 more source

Antileishmanial and antitrypanosomal activity of the cutaneous secretion of Siphonops annulatus

Journal of Venomous Animals and Toxins including Tropical Diseases, 2015
Background Among the tropical parasitic diseases, those caused by protozoans are considered a challenge to public health, being represented by leishmaniasis and Chagas disease.
Erika Gracielle Pinto, Marta Maria Antoniazzi, Carlos Jared, and Andre Gustavo Tempone   +3 more
doaj   +1 more source

Bioguided Fractionation ofPolygonum alpinum. and Isolation and Structure Elucidation of Active Compounds

Pharmaceutical Biology, 2006
AbstractBioguided fractionation of the methanol extract of aerial parts from Polygonum alpinum. L. (Polygonaceae) was investigated using the exudation phase of inflammation in aseptic arthritis model, which is produced by carrageenan and radical-scavenging properties.
Guvenalp, Zühal, DEMIREZER, L. O., Suleyman, Halis, KURUUZUM-UZ, A.   +3 more
openaire   +2 more sources

Bioguided Isolation of Secondary Metabolites from Salvia cerino-pruinosa Rech. f. var. cerino-pruinosa

Records of Natural Products, 2021
In the current study, the ethanol extracts prepared from the aerial parts and roots of an endemic species, Salvia cerino-pruinosa Rech. f. var. cerino-pruinosa were fractionated on silica gel columns and tested for determination of their antioxidant activity using DPPH free radical and ABTS cation radical scavenging, and cupric reducing antioxidant ...
Ertas, Abdulselam, Cakirca, Hatice, Yener, Ismail, Akdeniz, Mehmet, Firat, Mehmet, Topcu, Gulacti, Kolak, Ufuk   +6 more
openaire   +5 more sources

Antiparasitic Metabolites from , a Tacana Medicinal Plant

Natural Product Communications, 2019
A bioassay screening against protozoa parasites of several Tacana medicinal plants gave Hyptis brevipes (Id'ene eidhue), traditionally used as decoction for intestinal parasites, as the most active extract.
Ivan Limachi, Claudia Condo, Camila Palma, Nelida Nina, Efrain Salamanca, Juan C. Ticona, Enrique Udaeta, Ninoska Flores, Alcides Serato, Natalio Marupa, Benigno Chao, Gladys Ibaguari, Constantino Nay, Soffie Manner, Olov Sterner, Alberto Giménez   +15 more
doaj   +1 more source

Antiprotozoal Activity against Entamoeba histolytica of Plants Used in Northeast Mexican Traditional Medicine. Bioactive Compounds from Lippia graveolens and Ruta chalepensis

Molecules, 2014
Amoebiasis caused by Entamoeba histolytica is associated with high morbidity and mortality is becoming a major public health problem worldwide, especially in developing countries.
Ramiro Quintanilla-Licea, Benito David Mata-Cárdenas, Javier Vargas-Villarreal, Aldo Fabio Bazaldúa-Rodríguez, Isvar Kavimngeles-Hernández, Jesús Norberto Garza-González, Magda Elizabeth Hernández-García   +6 more
doaj   +1 more source

Bioguided isolation of compounds with antioxidant activity to improve the in vitro maturation of mammalian oocytes

Research, Society and Development, 2020
Bioactive compounds are characterized as secondary metabolites, derived from plants, that exert pharmacological and/or toxicological effects on humans and/or animals. In recent years, such compounds, particularly those exhibiting antioxidant activity, have been employed in the in vitro maturation (IVM) of oocytes from different mammals.
Lhara Ricarliany Medeiros de Oliveira, Maria Valéria de Oliveira Santos, Luciana Medeiros Bertini, Alexsandra Fernandes Pereira   +3 more
openaire   +2 more sources

Biological Activities of Lamiaceae Species: Bio-Guided Isolation of Active Metabolites from Salvia officinalis L.

Agronomy, 2023
Lamiaceae family includes various medicinal and aromatic plants used in cosmetics and pharmaceutical industries. The present study aimed to investigate in vitro the cytotoxic, photoprotective and antioxidant activities of ten Lamiaceae taxa; Melissa ...
Eleni Tsitsigianni, Ekaterina-Michaela Tomou, Chara Almpani, Michail Ch. Rallis, Helen Skaltsa   +4 more
doaj   +1 more source

Suppressive Activity of Glechoma hederacea Extracts against the Phytopathogenic Oomycete Plasmopara viticola, and First Screening of the Active Metabolites

Agriculture, 2023
Plasmopara viticola is a destructive oomycete that affects grapevines, causing significant economic losses worldwide. This study highlights how the plant Glechoma hederacea might be at the basis for the development of biofungicides to control P. viticola.
Jesús G. Zorrilla, Oscar Giovannini, Stefano Nadalini, Alberto Zanini, Maria Teresa Russo, Marco Masi, Gerardo Puopolo, Alessio Cimmino   +7 more
doaj   +1 more source

Bromopyrrole alkaloids from the caribbean sponge Agelas cerebrum

Química Nova, 2011
Bioguided fractionation of Agelas cerebrum crude extract resulted in isolation of four bromopyrrole and four bromopyrrole aminoimidazole alkaloids, identified as 5-bromopyrrole-2-carboxylic acid (1), 4-bromopyrrole-2-carboxylic acid (2), 3,4-bromopyrrole-
Erik L. Regalado, Abilio Laguna, Judith Mendiola, Olivier P. Thomas, Clara Nogueiras   +4 more
doaj   +1 more source