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Investigation of the Distributions and Types of Multidrug-Resistant Acinetobacter baumannii in Different Departments in a General Hospital

BACKGROUND: Acinetobacter baumannii is the most prevalent strain in hospitals and different clinical departments. OBJECTIVES: The current study aimed to investigate the genetic characteristics and resistance mechanisms of A. baumannii isolated from clinical samples in Shaoxing people’s hospital affi...

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Autores principales: Qian, Yaner, Dong, Xuejun, Wang, Zongxin, Yang, Guocan, Liu, Qi
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Kowsar 2015
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4609033/
https://www.ncbi.nlm.nih.gov/pubmed/26487921
http://dx.doi.org/10.5812/jjm.22935
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author Qian, Yaner
Dong, Xuejun
Wang, Zongxin
Yang, Guocan
Liu, Qi
author_facet Qian, Yaner
Dong, Xuejun
Wang, Zongxin
Yang, Guocan
Liu, Qi
author_sort Qian, Yaner
collection PubMed
description BACKGROUND: Acinetobacter baumannii is the most prevalent strain in hospitals and different clinical departments. OBJECTIVES: The current study aimed to investigate the genetic characteristics and resistance mechanisms of A. baumannii isolated from clinical samples in Shaoxing people’s hospital affiliated to Zhejiang University, Shaoxing, China. PATIENTS AND METHODS: Acinetobacter baumannii strains were isolated from blood, phlegm and skin of the patients hospitalized in different departments as respiratory medicine, plastic surgery and intensive care unit (ICU). Multilocus sequence typing (MLST) was used to characterize the isolates. Kirby-Bauer test was used to evaluate antibiotic resistance of the bacteria. The expression of resistance inducing genes was detected by reverse transcription polymerase chain reaction (RT-PCR). The results were analyzed and compared. RESULTS: Two bacterial types, ST208, and ST218, were identified in all 140 samples. The ST208 mainly came from ICU and department of respiratory medicine, while ST218 from department of plastic surgery; 70.21% of ST208 and 84.78% of ST218 were carbapenem-resistant Acinetobacter baumannii (CRAB) and carbapenem-susceptible Acinetobacter baumannii (CSAB), respectively. Multidrug-resistance genes in CRAB isolated from the hospital mainly included, oxa-23, oxa-5, intl 1 and qaceΔ1-sul 1. Besides, the highest and lowest antibiotic resistance was observed in the strains isolated from blood samples and wounds, respectively. CONCLUSIONS: The distribution of AB varies in different clinical departments and samples. In the hospital under study, the main types of AB were ST208 and ST218. The genes which affect the ability of antibiotic-resistance were oxa-23, oxa-51, intl 1 and qaceΔ1-sul 1.
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spelling pubmed-46090332015-10-20 Investigation of the Distributions and Types of Multidrug-Resistant Acinetobacter baumannii in Different Departments in a General Hospital Qian, Yaner Dong, Xuejun Wang, Zongxin Yang, Guocan Liu, Qi Jundishapur J Microbiol Research Article BACKGROUND: Acinetobacter baumannii is the most prevalent strain in hospitals and different clinical departments. OBJECTIVES: The current study aimed to investigate the genetic characteristics and resistance mechanisms of A. baumannii isolated from clinical samples in Shaoxing people’s hospital affiliated to Zhejiang University, Shaoxing, China. PATIENTS AND METHODS: Acinetobacter baumannii strains were isolated from blood, phlegm and skin of the patients hospitalized in different departments as respiratory medicine, plastic surgery and intensive care unit (ICU). Multilocus sequence typing (MLST) was used to characterize the isolates. Kirby-Bauer test was used to evaluate antibiotic resistance of the bacteria. The expression of resistance inducing genes was detected by reverse transcription polymerase chain reaction (RT-PCR). The results were analyzed and compared. RESULTS: Two bacterial types, ST208, and ST218, were identified in all 140 samples. The ST208 mainly came from ICU and department of respiratory medicine, while ST218 from department of plastic surgery; 70.21% of ST208 and 84.78% of ST218 were carbapenem-resistant Acinetobacter baumannii (CRAB) and carbapenem-susceptible Acinetobacter baumannii (CSAB), respectively. Multidrug-resistance genes in CRAB isolated from the hospital mainly included, oxa-23, oxa-5, intl 1 and qaceΔ1-sul 1. Besides, the highest and lowest antibiotic resistance was observed in the strains isolated from blood samples and wounds, respectively. CONCLUSIONS: The distribution of AB varies in different clinical departments and samples. In the hospital under study, the main types of AB were ST208 and ST218. The genes which affect the ability of antibiotic-resistance were oxa-23, oxa-51, intl 1 and qaceΔ1-sul 1. Kowsar 2015-09-26 /pmc/articles/PMC4609033/ /pubmed/26487921 http://dx.doi.org/10.5812/jjm.22935 Text en Copyright © 2015, Ahvaz Jundishapur University of Medical Sciences. http://creativecommons.org/licenses/by-nc/4.0/ This is an open-access article distributed under the terms of the Creative Commons Attribution-NonCommercial 4.0 International License (http://creativecommons.org/licenses/by-nc/4.0/) which permits copy and redistribute the material just in noncommercial usages, provided the original work is properly cited.
spellingShingle Research Article
Qian, Yaner
Dong, Xuejun
Wang, Zongxin
Yang, Guocan
Liu, Qi
Investigation of the Distributions and Types of Multidrug-Resistant Acinetobacter baumannii in Different Departments in a General Hospital
title Investigation of the Distributions and Types of Multidrug-Resistant Acinetobacter baumannii in Different Departments in a General Hospital
title_full Investigation of the Distributions and Types of Multidrug-Resistant Acinetobacter baumannii in Different Departments in a General Hospital
title_fullStr Investigation of the Distributions and Types of Multidrug-Resistant Acinetobacter baumannii in Different Departments in a General Hospital
title_full_unstemmed Investigation of the Distributions and Types of Multidrug-Resistant Acinetobacter baumannii in Different Departments in a General Hospital
title_short Investigation of the Distributions and Types of Multidrug-Resistant Acinetobacter baumannii in Different Departments in a General Hospital
title_sort investigation of the distributions and types of multidrug-resistant acinetobacter baumannii in different departments in a general hospital
topic Research Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4609033/
https://www.ncbi.nlm.nih.gov/pubmed/26487921
http://dx.doi.org/10.5812/jjm.22935
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