RESUMO Objetivo: Avaliar a atividade antibacteriana contra Staphylococcus aureus e Pseudomonas aeruginosa de dois revestimentos endotraqueais com nanopartículas e fotocatálise sob luz visível. Métodos: Testaram-se dois tipos de nanopartículas de titânio: anatase padrão (TiO2) e TiO2 nano-dopada ...
Antibacterianos/farmacología,
Recuento de Colonia Microbiana,
Técnicas In Vitro,
Intubación Intratraqueal/instrumentación,
Luz,
Nanopartículas del Metal,
Pruebas de Sensibilidad Microbiana,
Nitrógeno/química,
Pseudomonas aeruginosa/efectos de los fármacos,
Staphylococcus aureus/efectos de los fármacos,
Factores de Tiempo,
Titanio/química,
Titanio/farmacología
Cannabis sativa (marihuana) is considered an illicit drug due to its psychoactive properties. Recently, the Chilean government opened to the use cannabis in the symptomatic treatment of some patients. The biological effects of cannabis render it useful for the complementary treatment of specific clinical...
RESUMEN Con el objetivo de estudiar la distribución geográfica del contenido de fluoruros en el agua de abastecimiento público de la provincia de Tucumán, Argentina, se recolectaron 1.210 muestras en 190 localidades de los 17 departamentos de la provincia durante el periodo 2008-2012. Las determinaci...
En los últimos años microorganismos tales como hongos, levaduras y, en especial, las bacterias han sido utilizadas para realizar biosíntesis de nanopartículas. Existen varios tipos de bacterias descritas como productoras de nanopartículas, sin embargo, las bacterias psicrófilas y psicrotolerantes n...
Our aim was to describe sperm parameters in residents from Northern Chile. We evaluated in 101 volunteers (18 and 30 years old) urinary and drinking water Boron levels using Inductively Coupled Plasma Mass Spectrometry; semen parameters were measured with standardized methods. Each individual was categor...
Contaminantes Químicos del Agua/orina,
Boro/orina,
Chile,
Exposición a Compuestos Químicos,
Boro/toxicidad,
Contaminantes Químicos del Agua/toxicidad,
Espermatozoides/efectos de los fármacos,
Semen/química,
Semen/efectos de los fármacos,
Fertilidad/efectos de los fármacos,
Espectrometría de Masas/métodos,
Espermatozoides/patología
Non-alcoholic fatty liver induces many complications to the liver tissue and also serum related parameters. Medicinal plants are the safe therapeutic strategy for the treatment of diseases. In this regards, the present study was conducted to evaluate the effect of Tribulus terrestris (T. terrestris) extr...
ABSTRACT Background Obesity is characterized by a deposition of abnormal or excessive fat in adipose tissue, and is linked with a risk of damage to several metabolic and pathological processes associated with oxidative stress. To date, salivary oxidative biomarkers have been minimally explored in obese...
Antropometría,
Antioxidantes/análisis,
Biomarcadores/análisis,
Estudios de Casos y Controles,
Peroxidación de Lípido/fisiología,
Obesidad/sangre,
Sobrepeso/sangre,
Oxidación-Reducción,
Estrés Oxidativo/fisiología,
Especies Reactivas de Oxígeno/metabolismo,
Valores de Referencia,
Saliva/química,
Saliva/metabolismo,
Estadísticas no Paramétricas,
Compuestos de Sulfhidrilo/análisis,
Ácido Úrico/análisis
Abstract Pullulan is a natural exopolysaccharide with many useful characteristics. However, pullulan is more costly than other exopolysaccharides, which limits its effective application. The purpose of this study was to adopt a novel mixed-sugar strategy for maximizing pullulan production, mainly using p...
Almidón/metabolismo,
Glucanos/biosíntesis,
Fermentación,
Ascomicetos/metabolismo,
Sacarosa/metabolismo,
Técnicas de Cultivo Celular por Lotes,
Biomasa,
Reactores Biológicos,
Carbono/metabolismo,
Cinética,
Almidón/química,
Solanum tuberosum/química
Abstract In this study, determination of heavy metal parameters and microbiological characterization of marine sediments obtained from two heavily polluted sites and one low-grade contaminated reference station at Jiaozhou Bay in China were carried out. The microbial communities found in the sampled mari...
Bacterias,
Biodiversidad,
Microbiología Ambiental,
Contaminantes Ambientales,
Contaminación Ambiental,
Sedimentos Geológicos/química,
Sedimentos Geológicos/microbiología,
Metales Pesados,
Bacterias/clasificación,
Bahías,
China,
Análisis por Conglomerados,
Ambiente
Abstract This study assessed the genotoxicity and chemical quality of the Rio dos Sinos, southern Brazil. During two years, bimonthly, cuttings of Tradescantia pallida var. purpurea with flower buds were exposed to river water samples from Caraá, Santo Antônio da Patrulha, Taquara and Campo Bom, which ...
