Objectives: The emergence of carbapenem resistance in biofilm producer Gram-negative bacteria poses a substantial challenge to manage infections. This study aimed evaluate production and molecular characterization rods. Methods: Total 46 were isolated from various clinical samples, including blood, CSF, urine, sputum, saliva, tracheal secretion, pus. Following the standard guidelines for bacter...

Introduction: Acinetobacter baumannii is a major cause of nosocomial infections which affect mainly disabled patients in intensive care units. The bacteria may acquire resistance to antibiotics and hence can seriously endanger antibiotic therapy. The most important problem facing treatment of A. baumannii is increasing reports of resistance to a wide range of antibiotics, including carbapenems,...

Background: Increase in antimicrobial-resistant bacteria continues to be challenge physicians. Particularly, multidrug-resistant (MDR) gram-negative bacilli (GNB), such as extended-spectrum beta-lactamase (ESBL)-producers and carbapenem-resistant pathogens, are becoming a major human health problem globally.Current Concepts: Gram-negative have developed resistance via mechanisms encoding AmpC b...

There is a growing evidence on emergence of carbapenem-resistant Acinetobacter baumannii (CRAB) in Thailand and recent treatment guidelines recommend a combination therapy using carbapenem and/or polymyxin with rifampin. Rifampin would be added in a combination therapy. The susceptibility of this pathogen to rifampin is not known, so we studied the rifampin susceptibility and possible mechanism...

BACKGROUND The increased reports of ESBL dissemination from various centres in south western, Nigeria and the recent emergence of carbapenem resistant bacteria prompted the conception of this study. OBJECTIVES To demonstrate the relationship between high molecular weight plasmids and the expression of antibiotic multi-resistance including ESBL and carbapenemase. METHODS We investigated 97 i...

BACKGROUND Carbapenem-resistant Klebsiella pneumoniae (CRKP) is considered a serious global threat. However, little is known regarding the multidrug resistance (MDR) mechanisms of CRKP. This study investigated the phenotypes and MDR mechanisms of CRKP and identified their clonal characteristics. METHODS PCR and sequencing were utilized to identify antibiotic resistance determinants. Integron ...

Infections caused by gram-negative bacteria (GNB) resistant to multiple classes of antibiotics are increasing in many hospitals. Extended-spectrum β-lactamase (ESBL)-producing and carbapenem-resistant Enterobacteriaceae in particular are now endemic in many parts of the world and represent a serious public health threat. In this era, antimicrobial stewardship programs are essential as targeted ...

Carbapenem-resistant Acinetobacter baumannii isolates were obtained from 17 patients between September 2004 and August 2005 at the Academisch Ziekenhuis Vrije Universiteit Brussel, Brussels, Belgium. These multidrug-resistant isolates, which belonged to a single clone, remained susceptible to colistin and tigecycline only and produced the carbapenem-hydrolyzing oxacillinase OXA-58. This study h...

The objective of this study was to reveal the molecular mechanism involved in carbapenem resistance and virulence of a K2 Klebsiella pneumoniae clinical isolate 24835. The virulence of the strain was determined by in vitro and in vivo methods. The de novo whole-genome sequencing technology and molecular biology methods were used to analyze the genomic features associated with the carbapenem res...

BACKGROUND The Pseudomonas aeruginosa porin OprD is a substrate-specific porin that facilitates the diffusion of basic amino acids, small peptides, and carbapenems into the cell. OprD-mediated resistance occurs as a result of decreased transcriptional expression of oprD and/or loss of function mutations that disrupt protein activity. OBJECTIVES In this study, we examined the level of oprD exp...