DNA-triplex Forming Purine Repeat Containing Genes in Acinetobacter baumannii and Their Association with Infection and Adaptation
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Molecular Detection of Type II Toxin-Antitoxin Systems and their Association with Antibiotic Resistance and Biofilm Formation in Clinical Acinetobacter baumannii Isolates of Burn Patients
Background and purpose: Burn wounds are a good host for infections. Acinetobacter baumannii is an opportunistic bacterium in patients with burn infections. Toxin-antitoxin systems (TAS) are genetic elements that are essential for antibiotic resistance and biofilm formation in bacteria, including higBA and relBE TA systems. The present study aimed to investigate the frequency of higBA and relBE...
متن کاملAssociation between mutations in gyrA and parC genes of Acinetobacter baumannii clinical isolates and ciprofloxacin resistance
Objective(s): We investigated the contribution of gyrA and parC mutational mechanism in decreased ciprofloxacin susceptibility of Acinetobacter baumannii isolated from burn wound infections. Materials and Methods: Ciprofloxacin susceptibility of 50 A. baumannii isolates was evaluated by disk diffusion and agar dilution methods. PCR and sequencing were performed for detection of mutation in gyr...
متن کاملFrequency of bap and cpaA virulence genes in drug resistant clinical isolates of Acinetobacter baumannii and their role in biofilm formation
Objective(s): Acinetobacter baumannii has a high propensity to form biofilm and frequently causes medical device-related infections with multiple-drug-resistance in hospitals. The aim of this work is to study antimicrobial resistance and the role of bap and cpaA genes in biofilm formation by A. baumannii to understand how this pathogen persists in the hospital environment. Materials and Methods...
متن کاملMolecular Investigation of Resistance to Disinfectants in Acinetobacter Baumannii Isolates Collected From Qazvin Hospitals, Iran (2017)
Background Acinetobacter baumannii is an important agent of nosocomial infections. There are several reports on the presence of disinfectants-resistant Acinetobacter baumannii developed by qacE and qacEΔ1 genes in medical centers. Objective The current study aimed to assess the relevant antimicrobial susceptibility and to determine the frequency of genes encoding resistance to disinfectants i...
متن کاملTriple helix formation with purine-rich phosphorothioate-containing oligonucleotides covalently linked to an acridine derivative.
Purine-rich (GA)- and (GT)-containing oligophosphorothioates were investigated for their triplex-forming potential on a 23 bp DNA duplex target. In our system, GA-containing oligophosphorothioates (23mer GA-PS) were capable of triplex formation with binding affinities lower than (GA)-containing oligophosphodiesters (23mer GA-PO). The orientation of the third strand 23mers GA-PS and GA-PO was an...
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