Results 91 to 100 of about 4,277 (206)

Evaluación de la toxicidad hepática y renal aguda y subaguda del látex de Croton palanostigma (sangre de grado) en animales de experimentación

Anales de la Facultad de Medicina, 2005
Objetivo: Determinar la toxicidad hepática y renal de la administración oral del látex de Croton palanostigma, en dosis terapéutica y de mayor concentración. Materiales y Métodos: Se evaluó 60 ratas albinas, machos, en dos grupos: con administración oral
Miguel Sandoval, Salomón Ayala, Oré María, Lázaro Valdivieso, Rudi Loli, Vides Ricra, Oscar Huaman   +6 more
doaj  

Sesquiterpenes from the essential oil of Laurencia dendroidea (Ceramiales, Rhodophyta): isolation, biological activities and distribution among seaweeds [PDF]

, 2011
Two known sesquiterpenes (1R*,2S*,3R*,5S*,8S*,9R*)-2,3,5,9-tetramethyltricyclo[6.3.0.0(1,5)]undecan-2-ol and (1S*,2S*,3S*,5S*,8S*,9S*)-2,3,5,9-tetramethyltricyclo-[6.3.0.0(1,5)]undecan-2-ol were isolated for the first time from the essential oil of the ...
Pio Colepicolo, Ernani Pinto, GRESSLER, Vanessa, Fabiane Dörr, STEIN, Érika M., Mutue T. Fujii, FUJII, Mutue T., Érika M. Stein, Vanessa Gressler, PINTO, Ernani, COLEPICOLO, Pio, DÖRR, Fabiane   +11 more
core   +1 more source

Chemically engineered essential oils prepared through thiocyanation under solvent-free conditions: chemical and bioactivity alteration

Natural Products and Bioprospecting
The generation of chemically engineered essential oils (CEEOs) prepared from bi-heteroatomic reactions using ammonium thiocyanate as a source of bioactive compounds is described.
Liz E. Lescano, Mario O. Salazar, Ricardo L. E. Furlan   +2 more
doaj   +1 more source

Uma proposta para o controle de qualidade de Tanacetum parthenium (tanaceto) e seu extrato hidroalcoólico [PDF]

, 2008
In this study, we present a proposal for the physical and chemical quality control of the powder of the species T. parthenium (feverfew) and its hydroalcoholic extract obtained by percolation.
DA COSTA, Fernando Batista, CHAVES, Juliana Siqueira   +1 more
core   +1 more source

An integrative review on traditional uses, phytochemical composition, biological activities, nutritional relevance and technological application of Dioscoreaceae species

Discover Plants
The Dioscoreaceae, a family of monocotyledonous flowering plants comprising about 650 species across four genera, is prevalent in tropical regions and plays a vital role in diets across the Global South.
Felipe Ribeiro da Silva, Auygna Pamyda Gomes da Silva, Cledson dos Santos Magalhaes, Marina Maria Barbosa De Oliveira, Karina Perrelli Randau   +4 more
doaj   +1 more source

Busca de inibidores da enzima glicossomal gliceraldeído 3-fosfato desidrogenase de Trypanosoma cruzi [PDF]

, 2009
The inhibitory activity of crude extracts of Meliaceae and Rutaceae plants on glycosomal glyceraldehyde-3-phosphate dehydrogenase (gGAPDH) enzyme from Trypanosoma cruzi was evaluated at 100 μg/mL.
LIMA, M. Inês S., SILVA, Maria Fátima das G. F. da, THIEMANN, Otavio Henrique, LEITE, Ana C., CASTILHO, Marcelo S., OLIVA, Glaucius, AMBROZIN, Alessandra R. P., PIRANI, José R., VIEIRA, Paulo C., FERNANDES, João B.   +9 more
core   +1 more source

Avaliação in Vitro da atividade antimicrobiana do carvacrol através dos métodos de contato direto e gasoso

Bioscience Journal, 2013
Nas últimas décadas, a resistência bacteriana frente aos antimicrobianos se constituiu em um sério problema para a saúde pública, impondo barreiras ao controle de diversas espécies de microrganismos.
Maria Audilene Freitas, Jacqueline Cosmo Andrade, Glaucia Morgana Melo Guedes, Saulo Relison Tintino, Celestina Elba Sobral Souza, Nadghia Figueiredo Leite, Cícera Natália Figueiredo Leite Gondim, Maria Flaviana Bezerra Morais-Braga, Edinardo Fágner Ferreira Matias, Henrique Douglas Melo Coutinho   +9 more
doaj  

Characterization of putative virulence determinants and their role in the pathogenici of Helicobacter pylori

, 2000
Dottorato di ricerca in farmacologia, farmacognosia e tossicologia. 12 ciclo. A.a. 1996-99. Tutori Giuseppe Del Giudice e Gabriella Mazzanti. Coordinatore Bruno SilvestriniConsiglio Nazionale delle Ricerche - Biblioteca Centrale - P.le Aldo Moro, 7, Rome;
Martino, Maria Celeste
core  

Seasonal changes in the pigment composition of natural population of Gracilaria domingensis (Gracilariales, Rhodophyta) [PDF]

, 2012
The concentrations of phycobiliproteins (phycoerythrin and phycocyanin), chlorophyll-a and total soluble proteins were determined monthly in three strains (red, green and brown) of Gracilaria domingensis (Kützing) Sonder ex Dickie, collected from natural
Pereira, Dinaelza Castelo, Trigueiro, Thiago Gaban, Marinho-Soriano, Eliane, Neto, Pio Colepicolo   +3 more
core   +1 more source

The Search for Antifungals from Amazonian Trees: A Bio-Inspired Screening

Natural Product Communications, 2015
The anti-fungal activity of 60 extracts from 15 tree species in the French Guiana rainforest against human and wood-rotting fungi was studied. In this way (+)-mopanol ( 1 ) was isolated from the ethyl acetate extract of Peltogyne sp.
Charlie Basset, Véronique Eparvier, Laila S. Espindola   +2 more
doaj   +1 more source