Results: 128

Chronic intermittent exposure to ayahuasca during aging does not affect memory in mice

Braz. j. med. biol. res; 50 (7), 2017
The Quechua term ayahuasca refers to a beverage obtained from decoctions of the liana Banisteriopsis caapi with leaves of Psychotria viridis. The ritualistic use of ayahuasca is becoming a global phenomenon, with some individuals using this beverage throughout life, including in old age. Cognitive impair...

Aquisição domiciliar de refrigerantes e de biscoitos reduz o efeito de uma intervenção de promoção de frutas e hortaliças

Resumo: O presente estudo examina a influência do aumento da disponibilidade intradomiciliar de refrigerantes e biscoitos sobre os efeitos de uma intervenção de promoção do consumo de frutas e hortaliças. Foram analisados os dados de 70 famílias que viviam em comunidades de baixa renda na cidade d...

Cambios en el patrón de consumo de alimentos y bebidas en Argentina, 1996-2013

Salud colect; 12 (4), 2016
RESUMEN El patrón alimentario de la población se ha modificado en los últimos años como consecuencia de cambios culturales y en la accesibilidad a los alimentos. Con el objetivo de describir los cambios en el patrón de consumo de alimentos y bebidas en las últimas dos décadas en Argentina, se anal...

Influência da dieta líquida infantil na rugosidade do esmalte de dentes bovinos

Arq. odontol; 52 (3), 2016
Objetivo: Avaliar a rugosidade do esmalte de dentes bovinos submetidos ao desafio erosivo por bebidas infantis, no intervalo de tempo de 07, 14 e 21 dias e a influência de dentifrício fluoretado após esses desafios erosivos. Métodos: Foram obtidos 40 espécimes de bloco de esmalte, os quais foram div...

Evaluation of methods for stain removal in acrylic resin denture teeth: in vitro study

Introduction: The staining of artificial teeth can be related to the acrylic resin abrasion caused by brushing, resulting in higher deposition of dyes from the beverage, and consequently higher aesthetic damage. Objective: The aim of this in vitro study was to evaluate methods for removal of stains from...

Antioxidant potential of yerba mate (Ilex paraguariensis St. Hil.) extracts in Saccharomyces cerevisae deficient in oxidant defense genes

Braz. j. biol; 76 (2), 2016
Abstract Yerba-mate (Ilex paraguariensis St. Hil) is mainly consumed as “chimarrão”, a hot drink highly appreciated in Brazil, Argentina, Paraguay and Uruguay. This study evaluated the antioxidant potential of aqueous extracts of I. paraguariensis precipitated with ethanol. The leaves were p...

The role of diet in cancer: the epidemiologic link

Salud pública Méx; 58 (2), 2016
Abstract Diet is an important modifiable risk factor for cancer. Adequate diet modification may play a key role in reducing the incidence of some cancers. A growing body of epidemiological evidence suggested links of some nutritional exposures with individual cancers. This review updates and summarises t...

Effects of erosive challenge on the morphology and surface properties of luting cements

Introduction: Few studies investigated the surface properties of luting cements after erosive challenge. Objective: To evaluate the surface roughness (Ra), Vickers hardness (VHN) and morphology of 4 luting cements after erosive challenge. Material and method: Twenty specimens of each cement were prepar...

Análise da capacidade de remoção de pigmentos da resina composta pelo peróxido de hidrogênio 35%

Objetivo: Avaliar in vitro a capacidade de remoção de pigmentos ocasionados em resina composta após aplicação de peróxido de hidrogênio 35%. Material e método: Confeccionaram-se 20 amostras de resina composta Opallis (FGM), cor A1, em matriz metálica circular. As amostras foram divididas em quat...

Six-month color change and water sorption of 9 new-generation flowable composites in 6 staining solutions

Braz. oral res. (Online); 30 (1), 2016
Abstract Color match and water sorption are two factors that affect restorative materials. Discoloration is essential in the lifespan of restorations. The aim of this study was to evaluate color change and water sorption of nine flowable composites at multiple time points over 6 months. 60 samples of eac...