Results: 3070

Enrichment of arbuscular mycorrhizal fungi in a contaminated soil after rehabilitation

Braz. j. microbiol; 47 (4), 2016
Abstract Spore counts, species composition and richness of arbuscular mycorrhizal fungi, and soil glomalin contents were evaluated in a soil contaminated with Zn, Cu, Cd and Pb after rehabilitation by partial replacement of the contaminated soil with non-contaminated soil, and by Eucalyptus camaldulensis...

Antimicrobial profile of Arthrobacter kerguelensis VL-RK_09 isolated from Mango orchards

Braz. j. microbiol; 47 (4), 2016
Abstract An actinobacterial strain VL-RK_09 having potential antimicrobial activities was isolated from a mango orchard in Krishna District, Andhra Pradesh (India) and was identified as Arthrobacter kerguelensis. The strain A. kerguelensis VL-RK_09 exhibited a broad spectrum of in vitro antimicrobial act...

Cytotoxicity and anti-Sporothrix brasiliensis activity of the Origanum majorana Linn. oil

Braz. j. microbiol; 47 (4), 2016
Abstract The study aimed to evaluate the anti-Sporothrix sp. activity of the essential oil of Origanum majorana Linn. (marjoram), its chemical analysis, and its cytotoxic activity. A total of 18 fungal isolates of Sporothrix brasiliensis (n: 17) from humans, dogs and cats, and a standard strain of Sporot...

Pythium insidiosum: inhibitory effects of propolis and geopropolis on hyphal growth

Braz. j. microbiol; 47 (4), 2016
Abstract Propolis and geopropolis are resinous products of bees showing antimicrobial effects. There is no data concerning their action against Pythium insidiosum - the causative agent of pythiosis, a pyogranulomatous disease of the subcutaneous tissue that affects mostly horses, dogs and humans. Fragmen...

Removal of calcium hydroxide from Weine Type II systems using photon-induced photoacoustic streaming, passive ultrasonic, and needle irrigation: a microcomputed tomography study

J. appl. oral sci; 24 (6), 2016
ABSTRACT Objective This study compared the effectiveness of Er:YAG laser-activated irrigation (PIPS), passive ultrasonic irrigation (PUI) with EndoUltra and standard needle irrigation (SNI) in the removal of calcium hydroxide [Ca(OH)2] from the mesial roots of Weine Type II mandibular molars. Material...

In vitro effects of Melaleuca alternifolia essential oil on growth and production of volatile sulphur compounds by oral bacteria

J. appl. oral sci; 24 (6), 2016
ABSTRACT Objective Halitosis can be caused by microorganisms that produce volatile sulphur compounds (VSCs), which colonize the surface of the tongue and subgingival sites. Studies have reported that the use of natural products can reduce the bacterial load and, consequently, the development of halitos...

Expresión de BRCA1 en lesiones benignas y malignas de la mama

Invest. clín; 57 (4), 2016
La mayor parte de los carcinomas de mama son cánceres esporádicos; sin embargo, existe una proporción, estimada entre el 5 y el 10%, en la cual aparece una predisposición hereditaria al cáncer, asociado principalmente a mutaciones germinales en los genes BRCA1 y BRCA2; tales mutaciones incrementan l...

The effect of capsaicin on expression patterns of CGRP in trigeminal ganglion and trigeminal nucleus caudalis following experimental tooth movement in rats

J. appl. oral sci; 24 (6), 2016
ABSTRACT Objectives The aim of this study was to explore the effect of capsaicin on expression patterns of calcitonin gene-related peptide (CGRP) in the trigeminal ganglion (TG) and trigeminal subnucleus caudalis (Vc) following experimental tooth movement. Material and Methods Male Sprague-Dawley rat...

Evaluation of phenyl-propanedione on yellowing and chemical-mechanical properties of experimental dental resin-based materials

J. appl. oral sci; 24 (6), 2016
ABSTRACT Objective To evaluate the influence of phenyl-propanedione on yellowing and chemical-mechanical properties of experimental resin-based materials photoactivated using different light curing units (LCUs). Material and Methods Experimental resin-based materials with the same organic matrix (60:...

Silver nanoparticle incorporation effect on mechanical and thermal properties of denture base acrylic resins

J. appl. oral sci; 24 (6), 2016
ABSTRACT Objective The aim of the present study was to evaluate the mechanical and thermal characteristics of two denture base acrylic resins containing silver nanoparticles (AgNPs). Material and Methods Two different acrylic denture base resins (heat-polymerized and microwave polymerized) containing...