Results: 144

Chlamydophila pneumoniae infection is not associated with primary biliary cholangitis

Gastroenterol. latinoam; 30 (2), 2019
ANTECEDENTES: La colangitis biliar primaria (CBP) es una enfermedad hepática inflamatoria crónica colestásica de causa desconocida. Varios patógenos virales y bacterianos han sido propuestos como factores que podrían gatillar una respuesta inmune por mimetismo molecular, o directamente estar relacio...

Streptomyces globosus DK15 and Streptomyces ederensis ST13 as new producers of factumycin and tetrangomycin antibiotics

Braz. j. microbiol; 49 (4), 2018
ABSTRACT Fifty seven soil-borne actinomycete strains were assessed for the antibiotic production. Two of the most active isolates, designed as Streptomyces ST-13 and DK-15 exhibited a broad range of antimicrobial activity and therefore they were selected for HPLC fractionation against the most suppressed...

Identification of pathogenic and nonpathogenic Leptospira species of Brazilian isolates by Matrix Assisted Laser Desorption/Ionization and Time Flight mass spectrometry

Braz. j. microbiol; 49 (4), 2018
ABSTRACT Matrix Assisted Laser Desorption/Ionization and Time of Flight mass spectrometry (MALDI-TOF MS) is a powerful tool for the identification of bacteria through the detection and analysis of their proteins or fragments derived from ribosomes. Slight sequence variations in conserved ribosomal protei...

Composition of bacterial community in enrichment cultures of shale by-products from Irati Formation, Brazil

Braz. j. microbiol; 49 (4), 2018
ABSTRACT We examined microbial communities from enriched fine and retorted shale particles using sequencing of V4 variable region of 16S rRNA. High number of microbial genera was found in both enriched shale by-products that were dominate by Actinobacteria, Firmicutes and Proteobacteria, showing differen...

Phylogenetic MLSA and phenotypic analysis identification of three probable novel Pseudomonas species isolated on King George Island, South Shetland, Antarctica

Braz. j. microbiol; 49 (4), 2018
ABSTRACT Antarctica harbors a great diversity of microorganisms, including bacteria, archaea, microalgae and yeasts. The Pseudomonas genus is one of the most diverse and successful bacterial groups described to date, but only eight species isolated from Antarctica have been characterized. Here, we presen...

Genomic identification and characterization of the elite strains Bradyrhizobium yuanmingense BR 3267 and Bradyrhizobium pachyrhizi BR 3262 recommended for cowpea inoculation in Brazil

Braz. j. microbiol; 49 (4), 2018
ABSTRACT The leguminous inoculation with nodule-inducing bacteria that perform biological nitrogen fixation is a good example of an "eco-friendly agricultural practice". Bradyrhizobium strains BR 3267 and BR 3262 are recommended for cowpea (Vigna unguiculata) inoculation in Brazil and showed remarkable r...

Petroleum contamination and bioaugmentation in bacterial rhizosphere communities from Avicennia schaueriana

Braz. j. microbiol; 49 (4), 2018
ABSTRACT Anthropogenic activity, such as accidental oil spills, are typical sources of urban mangrove pollution that may affect mangrove bacterial communities as well as their mobile genetic elements. To evaluate remediation strategies, we followed over the time the effects of a petroleum hydrocarbon deg...

Potencial efeito preventivo do Lactobacillus acidophilus e Lactobacillus plantarum em pacientes com pólipos ou câncer colorretal

Arq. gastroenterol; 55 (4), 2018
ABSTRACT BACKGROUND: Colorectal cancer is one of the major causes of death worldwide. Many studies have been done on the biology of its formation as well as its treatment in recent years. One of the factors involved in the formation or treatment of this malignancy can be attributed to the microbial flo...

Especies rickettsiales en casos humanos con síndrome febril agudo inespecífico en Perú

RESUMEN Con el objetivo de caracterizar molecularmente aislamientos rickettsiales procedentes de humanos con síndrome febril agudo inespecífico se realizó un estudio descriptivo transversal, con aislamientos propagados en cultivos celulares Vero ATCC y líneas alternativas, verificando viabilidad medi...

Hemotropic mycoplasmas in naturally infected cats in Northeastern Brazil

Abstract This study aimed to determine the prevalence, factors associated, laboratory findings (with and without coinfection by retroviruses) among naturally infected cats by hemoplasmas in northeastern Brazil. For convenience, 200 domesticated and healthy cats were selected. Blood samples were taken to...