ArticleMolecular biology reports2021
Antibacterial effects of Octenicept, and benzalkonium chloride on Acinetobacter baumannii strains isolated from clinical samples and determination of genetic diversity of isolates by RAPD-PCR method.
Article in Molecular biology reports, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 4 papers.
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4 citing papers in PubMed, 3 citations in OpenAlex.
- Emerging Challenges: High frequency of Antiseptic Resistance Encoding Genes and Reduced Biguanide Susceptibility in Antibiotic-ResistantArchives of Razi Institute · 2025Article
- Molecular epidemiology and molecular typing methods ofSaudi medical journal · 2024Review
- Quaternary ammonium disinfectants and antiseptics: tolerance, resistance and potential impact on antibiotic resistance.Antimicrobial resistance and infection control · 2023Review
- Impact of benzalkonium chloride, benzethonium chloride and chloroxylenol on bacterial antimicrobial resistance.Journal of applied microbiology · 2022Review
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3 authors at 1 institution in 1 country.
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Abstract
backgroundAcinetobacter baumannii (A. baumannii) is among the important causes of nosocomial infections. Due to the emergence of antibiotic resistance, many problems have been raised in the successful treatment of patients infected by this bacterium with the subsequent mortality. Therefore, the present study was performed to evaluate the antibacterial effect of Octenicept (OCT), and Benzalkonium chloride (BZK) against A. baumannii strains isolated from clinical samples, and to determine the genetic diversity of strains by RAPD-PCR method.
methodsA total of 119 A. baumannii isolates were collected and confirmed by conventional culture and biochemical tests and PCR assay. Susceptibility of the isolates to antibiotics was evaluated by standard antibiotic susceptibility testing (AST). For antiseptics OCT and BZK, Minimum inhibitory concentration (MIC) was assessed by broth microdilution method. The prevalence of qacE and qacΔE1 genes related to antiseptics was estimated by PCR assay. Finally, genetic diversity of strains was determined by using RAPD-PCR.
resultsAll 119 suspected isolates were confirmed as A. baumannii using conventional microbiologic tests and PCR assay. The isolates were mostly originated from blood samples. In AST, the lowest resistance was seen for ciprofloxacin and gentamicin. For antiseptics, the MIC values were reported as 15.26 μg/ml for OCT and 640 μg/ml for BZK. The antiseptic genes of qacE and qacΔE1 were found to be present in 56 (47.05%) and 59 (49.57%) of isolates respectively. RAPD typing revealed great diversity among A. baumannii isolates, with 37 clusters in isolates from ICU, of which 32 clusters were single and 5 were multiple.
conclusionsConsidering the increase of resistance to antiseptics, it is of importance to monitor the susceptibility of A. baumannii to antiseptics and to promote antiseptic stewardship in hospitals. Furthermore, in this study great diversity was observed among A. baumannii isolates, which is important in understanding the molecular epidemiology of the outbreaks caused by this organism in the hospitals.
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