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Characterize carbapenem-resistant Klebsiella pneumoniae isolates for nosocomial pneumonia and their Gram-negative bacteria neighbors in the respiratory tract.
Mol Biol Rep. 2019 Feb; 46(1):609-616.MB

Abstract

This study was conducted to perform an epidemiological survey of carbapenem-resistant Klebsiella pneumoniae (CRKP) isolates for nosocomial pneumonia (NP) and visit their Gram-negative bacteria neighbors (GNNs) from the respiratory tracts. Pulsed-field gel electrophoresis and multi locus sequence typing were performed to evaluate the clonal relationships of these isolates. Statistical methods were then used to understand their possible relationship between CRKP and their GNNs. Among the 63 CRKP isolates, 84.1% produced a KPC-2 carbapenemase gene, followed by blaNDM-1 and blaIMP-38 like. 13 different STs and 29 clones were identified. Less heterogeneous clone backgrounds were observed in 53 KPC-2 K. pneumoniae isolates, and 6 STs have been found to contain KPC-2, of which the predominant ST11 harbored 47 KPC-2-producing K. pneumoniae isolates. Particularly, the two infrequent isolates co-possessing blaKPC-2 and blaIMP-38 like shared a different clonal relationship. 87 GNNs isolates of CRKP were established, the analysis present that different strains showed significant or no difference with CRKP upon antibiotics susceptibility. Conclusion, ST11 harboring KPC-2-producing K. pneumoniae isolates were dominant for NP, and both clonal spread and horizontal transfer contributed to the dissemination of CRKP. However, additional studies are needed to explore the biological relationship with their GNNs.

Authors+Show Affiliations

Department of Infectious Disease, The First Affiliated Hospital of Anhui Medical University, Hefei, 230022, China.Department of Clinical Laboratory, The First Affiliated Hospital of Anhui Medical University, Hefei, 230022, China.Department of Clinical Laboratory, The First Affiliated Hospital of Anhui Medical University, Hefei, 230022, China. aywzhx87@163.com.Department of Infectious Disease, The First Affiliated Hospital of Anhui Medical University, Hefei, 230022, China. lijiabin@ahmu.edu.cn.

Pub Type(s)

Journal Article

Language

eng

PubMed ID

30603949

Citation

Zhao, Dongmei, et al. "Characterize Carbapenem-resistant Klebsiella Pneumoniae Isolates for Nosocomial Pneumonia and Their Gram-negative Bacteria Neighbors in the Respiratory Tract." Molecular Biology Reports, vol. 46, no. 1, 2019, pp. 609-616.
Zhao D, Zuo Y, Wang Z, et al. Characterize carbapenem-resistant Klebsiella pneumoniae isolates for nosocomial pneumonia and their Gram-negative bacteria neighbors in the respiratory tract. Mol Biol Rep. 2019;46(1):609-616.
Zhao, D., Zuo, Y., Wang, Z., & Li, J. (2019). Characterize carbapenem-resistant Klebsiella pneumoniae isolates for nosocomial pneumonia and their Gram-negative bacteria neighbors in the respiratory tract. Molecular Biology Reports, 46(1), 609-616. https://doi.org/10.1007/s11033-018-4515-y
Zhao D, et al. Characterize Carbapenem-resistant Klebsiella Pneumoniae Isolates for Nosocomial Pneumonia and Their Gram-negative Bacteria Neighbors in the Respiratory Tract. Mol Biol Rep. 2019;46(1):609-616. PubMed PMID: 30603949.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Characterize carbapenem-resistant Klebsiella pneumoniae isolates for nosocomial pneumonia and their Gram-negative bacteria neighbors in the respiratory tract. AU - Zhao,Dongmei, AU - Zuo,Yan, AU - Wang,Zhongxin, AU - Li,Jiabin, Y1 - 2019/01/02/ PY - 2018/10/04/received PY - 2018/11/22/accepted PY - 2019/1/4/pubmed PY - 2019/7/3/medline PY - 2019/1/4/entrez KW - Biological relationship KW - Carbapenem-resistant Klebsiella pneumoniae KW - Gram-negative bacteria KW - Nosocomial pneumonia SP - 609 EP - 616 JF - Molecular biology reports JO - Mol. Biol. Rep. VL - 46 IS - 1 N2 - This study was conducted to perform an epidemiological survey of carbapenem-resistant Klebsiella pneumoniae (CRKP) isolates for nosocomial pneumonia (NP) and visit their Gram-negative bacteria neighbors (GNNs) from the respiratory tracts. Pulsed-field gel electrophoresis and multi locus sequence typing were performed to evaluate the clonal relationships of these isolates. Statistical methods were then used to understand their possible relationship between CRKP and their GNNs. Among the 63 CRKP isolates, 84.1% produced a KPC-2 carbapenemase gene, followed by blaNDM-1 and blaIMP-38 like. 13 different STs and 29 clones were identified. Less heterogeneous clone backgrounds were observed in 53 KPC-2 K. pneumoniae isolates, and 6 STs have been found to contain KPC-2, of which the predominant ST11 harbored 47 KPC-2-producing K. pneumoniae isolates. Particularly, the two infrequent isolates co-possessing blaKPC-2 and blaIMP-38 like shared a different clonal relationship. 87 GNNs isolates of CRKP were established, the analysis present that different strains showed significant or no difference with CRKP upon antibiotics susceptibility. Conclusion, ST11 harboring KPC-2-producing K. pneumoniae isolates were dominant for NP, and both clonal spread and horizontal transfer contributed to the dissemination of CRKP. However, additional studies are needed to explore the biological relationship with their GNNs. SN - 1573-4978 UR - https://www.unboundmedicine.com/medline/citation/30603949/Characterize_carbapenem_resistant_Klebsiella_pneumoniae_isolates_for_nosocomial_pneumonia_and_their_Gram_negative_bacteria_neighbors_in_the_respiratory_tract_ L2 - https://doi.org/10.1007/s11033-018-4515-y DB - PRIME DP - Unbound Medicine ER -