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Mediante el método de dilución en tubo se ensayó la posible actividad antimicrobiana del ácido epiforélico 1 (difenil-éter de origen liquénico) en bacterias Gram-positivas y hongos. La sustancia probada frente a S...

El objeto de este estudio fue el aislamiento y la caracterización de atranorina, uno de los principales constituyentes presentes en Cladina dendroides (des Abb.) y analizar su efecto antinociceptivo. La actividad antino...

El uso indebido de drogas narcóticas del tipo de los morfinosímiles es un significativo problema social de carácter internacional. Desde el año 1929, conocida la fórmula de la morfina, prototipo activo de alta compl...

Se estudiaron comparativamente las superficies foliares de las siguientes especies: Datura stramonium L., D. ferox L., D. innoxia Mill. y Brugmansia arborea (L.) Lagerth., empleadas como psicotomiméticos en infusiones o...

Materias / palabras clave: Macromolecule; Protein Data Bank (RCSB PDB); Protein Data Bank; Biological system; Macromolecular Substances; Chemistry; Protein function; Inference; Computer science; Chemical physics; Statistical physics; Data mining

Current quality control patterns are limited to industrial application, for most the natural chemical reference substances are expensive and unavailable. Here in, quantitative analysis of multi-components with single mar...

Paracetamol, an over the counter analgesic and antipyretic drug, causes hepatic and renal tubular necrosis at higher doses ingested accidentally, or intentionally. The situation worsens clinically upon the ingestion of p...

Manilkara subsericea (Mart.) Dubard (Sapotaceae) is popularly known in Brazil as "guracica". The species from the genus Manilkara have been studied and several substances were found, including triterpenes. In the present...

In an attempt to identify new antimicrobial compounds with potential to be used as a bactericidal/ fungicidal agent, a biomonitored study of extracts of Alternanthera brasiliana, which is used in Brazilian folk medicin...

This study evaluated the antimicrobial activity of the crude ethanol extract and fractions from Eugenia uniflora L. leaves against Pseudomonas aeruginosa. A total of 72 P. aeruginosa isolated from patients of three hospi...

In the present study the antinociceptive property of Pterodon emarginatus Vog. (Leguminosae) seeds essential oil (EO) and fractions was investigated. The writhing test induced by acetic acid, paw licking induced by forma...

O interesse na aplicação de sistemas nanoestrurados como veículo de preparações farmacêuticas se deve a capacidade destes de solubilizar substâncias hidrofílicas e lipofílicas. Com isto, têm sido utilizados vis...

Species of Sapindus (Sapindaceae) are widespread throughout the tropics (e.g., Brazil, China and India). The present report is based on available data and references on species of this genus. The main substances found ...

Baccharis coridifolia, representante da família Asteraceae é conhecida como mio-mio, vassourinha, alecrim-do-mato, romerillo, ajenjo del campo, ñio-ñio e toxic groundsel. Apresenta atividades antioxidante, citotóxic...

Se trata de una revisión bibliográfica sobre etnobotánica argentina de Caryophyllaceae, Se encontraron 15 especies con uso en la medicina popular. Ellas son: Agrostemma githago, Cardionema ramosissimum, Cerastium arve...

The chemical composition of the essential oils from leaves and stems of Eugenia sulcata Spring ex Mart., obtained by hydrodistillation, was analyzed by GC-MS and quantified by CG-FID. In all, 37 components were identifie...

Los radicales libres producen efectos dañinos sobre las moléculas diana, como una incrementada peroxidación de lípidos (PL), proteínas y del ADN, lo cual puede ser inhibido o reducido por sustancias antioxidantes. E...

Increased oxidative stress is implicated in several diseases. D-002, a mixture of six higher aliphatic alcohols purified from beeswax, and grape seed extract (GSE) (rich in flavonoids), have been shown antioxidant effe...

Thermogravimetric analysis (TGA) and differential scanning calorimetry (DSC) were used to investigate drug-excipient interactions and, in consequence, their compatibility. For this purpose, binary mixtures of olanzapine ...

Durante muchos siglos, la regulación del crecimiento de los órganos y los tejidos se relacionó con su función y con la temperatura, esta última se asociaba con la llegada de sangre al órgano. Con el surgimiento de ...

El objetivo general de la presente tesis fue el diseño y la construcción de un biosensor amperométrico para determinar glucosa en jugos de fruta (utilizando el de manzana como modelo) que sea económico, de fácil con...

No presente estudo, os teores de heterosídeos de flavonóides, de lactonas terpênicas e de ácidos ginkgólicos foram determinados por CLAE, e também os perfis de dissolução de seis medicamentos fitoterápicos à ...

Duguetia lanceolata St.-Hil. (Annonaceae), popularmente conhecida como pindaíba, é usada na medicina popular como antiinflamatório, cicatrizante e antimicrobiano. O objetivo do presente estudo foi investigar os efeito...

We studied if monocrotaline (MCT) portal hypertensive model modifies blood-brain barrier (BBB) condition. Male Wistar rats were used: Group MCT injected i.p. with MCT (60 mg/kg of body weight) and Group Sham (GS) with sa...