Results: 445

Increasing prevalence and dissemination of invasive nontyphoidal Salmonella serotype Typhimurium with multidrug resistance in hospitalized patients from southern Brazil

Braz. j. infect. dis; 22 (5), 2018
ABSTRACT Introduction: Nontyphoidal Salmonella serotypes are the main cause of human food-borne infection, including several hospitalization cases in the developing countries. Aim: To detect the main serotypes and to characterize the antibiotic resistance of human non-enteric and enteric nontyphoidal S...

Sensibilidad a trimetoprima-sulfametoxazol de Streptococcus pyogenes aislados de infecciones invasivas
Susceptibility of Streptococcus pyogenes isolated from invasive infections to trimethoprim-sulfamethoxazole

Medicina (B.Aires); 78 (5), 2018
Se cree erróneamente que los estreptococos del grupo A (EGA) son universalmente resistentes a trimetoprima-sulfametoxazol (TMS). Esto se debe a que la timidina presente en los medios habitualmente usados para determinar sensibilidad in vitro a antibióticos antagoniza el efecto antibiótico de TMS. El o...

In vitro resistance of Enterobacter cloacae isolated from fresh seafood to colistin

Abstract INTRODUCTION: Enterobacter cloacae is a clinically important bacterium from the Enterobacteriaceae family. This study evaluated resistance of E. cloacae strains from fish (n=14) and shrimp (n=9) to colistin. METHODS: Biochemical identification and antimicrobial susceptibility tests were carrie...

Increased antimicrobial resistance in Klebsiella pneumoniae from a University Hospital in Rio Grande do Sul, Brazil

Abstract INTRODUCTION The spread of multidrug-resistant Gram-negative bacilli is a health threat, limiting therapeutic options and increasing morbimortality rates. METHODS: This study aimed to evaluate the antimicrobial susceptibility profile of 1805 Klebsiella pneumoniae isolates collected from Hospi...

Carbapenem Resistance in Gram-negative Bacteria in South-western Nigeria: The Role of Extended-spectrum lactamase CTX-M-15

West Indian med. j; 67 (4), 2018
ABSTRACT Objective: To determine the role of extended-spectrum β-lactamases in carbapenem-resistant Gram-negative bacteria from south-western Nigeria. Methods: Twenty-seven carbapenem-resistant isolates that were found to be non-carbapenemase producers (15 Escherichia coli, 9 Klebsiella pneumoniae...

Phenotypic and molecular detection of metallo-β-lactamase-producing Pseudomonas aeruginosa isolates from patients with burns in Tehran, Iran

Abstract INTRODUCTION: Health care-associated infections caused by metallo-β-lactamase (MBL)-producing Pseudomonas aeruginosa are a significant growing concern in patients with burns worldwide. The aims of this study were to determine the antibiotic susceptibility of and detect the presence of MBLs...

Molecular analysis, biofilm formation, and susceptibility of methicillin-resistant staphylococcus aureus strains causing community- and health care-associated infections in central venous catheters

Abstract INTRODUCTION: The behavior of methicillin-resistant Staphylococcus aureus (MRSA) isolated from central venous catheter-related infection was evaluated to determine its biofilm potential, antimicrobial resistance, and adhesion genes. METHODS: A total of 1,156 central venous catheters (CVC) we...

Antibacterial efficacy of synthetic and natural-derived novel endodontic irrigant solutions

Braz. dent. j; 29 (5), 2018
Abstract The aim of this study was to compare the efficacy of grape seed extract (GSE), calcium hypochlorite [Ca(ClO)2], and sodium hypochlorite (NaOCl) irrigant solutions with rotary or reciprocating instrumentation for disinfection of root canals inoculated with Enterococcus faecalis. The mesiobuccal r...

O mel-derivado de Lactobacillus rhamnosus alivia a infecção gastro-intestinal induzida pelo Helicobacter pylori-e inflamação gástrica em C57Bl/6 ratos: um estudo imuno-histológico

Arq. gastroenterol; 55 (3), 2018
ABSTRACT BACKGROUND: Helicobacter pylori (H. pylori) has been introduced by since 1983 by Marshal and Warren to play the main role in the pathophysiology of gastritis and gastric ulcers. Almost half of the world population1 is infected by H. pylori. Current therapeutic regimen against H. pylori includes...

pMEX01, a 70kb Plasmid Isolated From Escherichia Coli That Confers Resistance to Multiple β-Lactam Antibiotics

Braz. j. microbiol; 49 (3), 2018
Abstract Multidrug-resistant microorganisms are of great concern to public health. Genetic mobile elements, such as plasmids, are among the most relevant mechanisms by which bacteria achieve this resistance. We obtained an Escherichia coli strain CM6, isolated from cattle presenting severe diarrheic symp...