Results: 5032

Consenso sobre terapia hormonal e câncer de mama
Consensus on hormone therapy and breast cancer

Femina; 41 (2), 2013

In vitro and In vivo anti-cancer effects of Tillandsia recurvata (Ball Moss) from Jamaica

West Indian med. j; 62 (3), 2013
OBJECTIVE: Tillandsia recurvata, also commonly known as Ball Moss, is endemic to Jamaica and some parts of the Caribbean and South America. The plant, despite being reported to be used in folk medicine, had not previously been evaluated for its anti-cancer potential. The aim of this study was to evaluate...

Síntesis y evaluación preliminar de la posible actividad antimalárica y antineoplásica de derivados 7-cloroquinolina-4-sustituidos

En el presente trabajo se describe la síntesis y la evaluación de la posible actividad Antimalárica y Antineoplásica de una serie de derivados 7-cloroquinolina-4-sustituidos. La estrategia empleada para la síntesis comienza con las obtención de los intermediarios clave 1-(3 ó 4-(7-cloroquinolin-4-...

Detection of drug resistant Mycobacterium tuberculosis among patients with and without HIV infection in a rural setting

West Indian med. j; 62 (2), 2013
OBJECTIVE: To analyse the sensitivity of Mycobacterium tuberculosis by nitrate reductase assay (NRA) and the Hain molecular line probe assay (LPA) in sputa of tuberculosis (TB)/HIV co-infected patients in Guyana. DESIGN: Sputum samples were collected from known TB patients at Georgetown Chest Clinic and ...

Evaluation of antimicrobial activity and cell viability of Aloe vera sponges

Electron. j. biotechnol; 16 (1), 2013
Background: Aloe vera L., member of the Liliaceae family, has been shown to stimulate cell proliferation and contribute to healing and angiogenesis, has anti-bacterial, anti-fungal and anti-inflammatory activity. In addition, Aloe vera can be used as a support for drug transport. Our objective is to eval...

Insecticidal effects of plant extracts on immature whitefly Bemisia tabaci Genn. (Hemiptera: Aleyroideae)

Electron. j. biotechnol; 16 (1), 2013
Background: The whitefly (Bemisia tabaci Genn.) is a widely distributed and highly harmful plant pest species. The management of B. tabaci has been typically carried out by chemical pesticides. In the last decade however, there has been an increasing interest in natural products, particularly those of pl...

Ensaio de permeabilidade em membrana artificial paralela (PAMPA): investigação das variáveis do ensaio para o estudo da permeabilidade de fármacos

O acesso à permeabilidade é uma etapa crucial na definição da via de administração de um fármaco, além de ser um dos parâmetros utilizados para a avaliação e seleção de moléculas durante as fases iniciais da pesquisa por novos fármacos. Diversos modelos in vitro têm sido descritos para a ...

Determination of the critical hydrophile-lipophile balance of licuri oil from Syagrus coronata: application for topical emulsions and evaluation of its hydrating function

Braz. j. pharm. sci; 49 (1), 2013
The aims of this study were to determine the critical hydrophile-lipophile balance (HLB) of licuri oil, and to perform a clinical assay to evaluate its hydrating effects. For the determination of the HLB, serial emulsions were prepared with the oil. Regarding the clinical study, 13 human subjects were re...

Composicion quimica y actividad antibacteriana del extracto etanololico y fracciones de la parte aerea de Sida cordifolia L
Chemical composition and antibacterial activity of ethanolic extract and fractions from the aerial parts of Sida cordifolia L

Rojasiana; Vol. 12 (1-2), 2013
Se realizo la evaluacion de la actividad antibacteriana del extracto etanolico de la parte aerea de Sida cordifolia L(Malvaceae) y de las fracciones obtenidas por extraccion en condiciones diferenciales de ph empleando el metodo de microtitulacion en placa utilizando resazurina como indicador de de viavi...

O papel da flagelina e do sistema de secreção de Escherichia coli enteroinvasora na resposta imune inata dos macrófagos

Escherichia coli enteroinvasora (EIEC) é um dos agentes etiológicos da disenteria bacilar. Seu processo fisiopatológico é desencadeado pela expressão de fatores de virulência, que proporcionam sua invasão e sobrevivência nas células do hospedeiro, ativando o sistema imune inato e adaptativo da m...