Results: 3070

Cardioprotection against experimental myocardial ischemic injury using cornin

Braz. j. med. biol. res; 49 (2), 2016
Phosphorylated-cyclic adenosine monophosphate response element-binding protein (Phospho-CREB) has an important role in the pathogenesis of myocardial ischemia. We isolated the iridoid glycoside cornin from the fruit of Verbena officinalis L, investigated its effects against myocardial ischemia and reperf...

Enhanced production and organic solvent stability of a protease fromBrevibacillus laterosporus strain PAP04

Braz. j. med. biol. res; 49 (4), 2016
A bacterial strain (PAP04) isolated from cattle farm soil was shown to produce an extracellular, solvent-stable protease. Sequence analysis using 16S rRNA showed that this strain was highly homologous (99%) to Brevibacillus laterosporus. Growth conditions that optimize protease production in this strain ...

Effect of magnesium ion on human osteoblast activity

Braz. j. med. biol. res; 49 (7), 2016
Magnesium, a promising biodegradable metal, has been reported in several studies to increase bone formation. Although there is some information regarding the concentrations of magnesium ions that affect bone remodeling at a cellular level, little is known about the effect of magnesium ions on cell gap ju...

Elaboración de bio-resina intercambiadora de cationes a partir de cáscara de plátano o guineo para eliminar metales pesados en agua contaminada
Manufacture of cation exchange bio-resin from banana peel to remove heavy metals in contaminated water

Esta investigación tuvo por objetivo obtener una bio-resina intercambiadora de cationes utilizando cáscaras de guineo o plátano, la cual reduzca la concentración de metales pesados en agua contaminada. A esta bio-resina se le realizaron pruebas fisicoquímicas: densidad seca aparente, pH y solubilida...

In vitro antibacterial activity of a silicone-based endodontic sealer and two conventional sealers

Braz. oral res. (Online); 30 (1), 2016
Abstract The aim of this study was to evaluate whether the modification in the silver component is capable of providing GuttaFlow 2 with antibacterial activity against Enterococcus faecalis compared with epoxy resin-based (AH Plus) and zinc oxide and eugenol-based (Endofill) sealers. The antibacterial ac...

Relined fiberglass post: an ex vivo study of the resin cement thickness and dentin-resin interface

Braz. oral res. (Online); 30 (1), 2016
Abstract The aim of this study was to evaluate the thickness of resin cements in the root thirds when using conventional fiberglass posts (CP) and relined fiberglass posts (RP) in weakened roots and to evaluate the morphological characteristics of the dentin-resin interface. Forty human maxillary anterio...

Does MTA affect fiber post retention in repaired cervical root canal perforations?

Braz. oral res. (Online); 30 (1), 2016
Abstract This study evaluated the effect of mineral trioxide aggregate (MTA) on the retention of fiber posts in repaired root canal perforations. Ten-millimeter post spaces were prepared in 60 endodontically treated bovine incisors. Root perforations were created in half of the root canals in the cervica...

Medium modification with bone morphogenetic protein 2 addition for odontogenic differentiation

Braz. oral res. (Online); 30 (1), 2016
Abstract The aim of this study was to evaluate whether medium modification improves the odontogenic differentiation of human dental pulp stem cells (DPSC) in vitro and in vivo. DPSC isolated from human impacted third molar teeth were analysed for clusters of differentiation with flow cytometry. Odontogen...

Effect of lectin (ScLL) on fibroblasts stimulated with LPS - an in vitro study

Braz. oral res. (Online); 30 (1), 2016
Abstract: The lectin (ScLL) extracted from the Synadenium carinatum plant has been evaluated as an immunomodulator in diseases such as asthma, neosporosis and leishmaniasis. However, it has not yet been evaluated in the oral cavity. This study evaluated the effect of ScLL on viability, proliferation and ...

Does a toothpaste containing blue covarine have any effect on bleached teeth? An in vitro, randomized and blinded study

Braz. oral res. (Online); 30 (1), 2016
Abstract The objective of this study was to analyze the effect of bleaching toothpastes, both conventional and those containing the new whitening agent Blue Covarine, on teeth previously bleached by conventional techniques (in-office and at-home). Squared bovine enamel/dentin blocks (6.0 x 6.0 x 2.0 mm) ...