Antimicrobial Resistance And Molecular Characteristics Among Neisseria gonorrhoeae Clinical Isolates In A Chinese Tertiary Hospital
Zhou Zheng,1 Li Liu,1 Xiaofei Shen,1 Jingyi Yu,1 Lijiang Chen,1 Lingling Zhan,1 Han Chen,1 Chunchan Lin,1 Ye Jiang,1 Hong Xia,1 Liangxing Wang,2 Fangyou Yu1,3 1Department of Clinical Laboratory, The First Affiliated Hospital of Wenzhou Medical University, Wenzhou, Zhejiang, People’s Republ...
| Main Authors: | , , , , , , , , , , , |
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| Format: | Article |
| Language: | English |
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Dove Medical Press
2019-10-01
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| Series: | Infection and Drug Resistance |
| Subjects: | |
| Online Access: | https://www.dovepress.com/antimicrobial-resistance-and-molecular-characteristics-among-neisseria-peer-reviewed-article-IDR |
| _version_ | 1818325895056719872 |
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| author | Zheng Z Liu L Shen X Yu J Chen L Zhan L Chen H Lin C Jiang Y Xia H Wang L Yu F |
| author_facet | Zheng Z Liu L Shen X Yu J Chen L Zhan L Chen H Lin C Jiang Y Xia H Wang L Yu F |
| author_sort | Zheng Z |
| collection | DOAJ |
| description | Zhou Zheng,1 Li Liu,1 Xiaofei Shen,1 Jingyi Yu,1 Lijiang Chen,1 Lingling Zhan,1 Han Chen,1 Chunchan Lin,1 Ye Jiang,1 Hong Xia,1 Liangxing Wang,2 Fangyou Yu1,3 1Department of Clinical Laboratory, The First Affiliated Hospital of Wenzhou Medical University, Wenzhou, Zhejiang, People’s Republic of China; 2Department of Respiratory Medicine, The First Affiliated Hospital of Wenzhou Medical University, Wenzhou 325000, People’s Republic of China; 3Department of Laboratory Medicine, Shanghai Pulmonary Hospital, Tongji University School of Medicine, Shanghai 200443, People’s Republic of ChinaCorrespondence: Fangyou YuDepartment of Clinical Laboratory, The First Affiliated Hospital of Wenzhou Medical University, Wenzhou, Zhejiang, People’s Republic of ChinaEmail wzjxyfy@163.comLiangxing WangDepartment of Respiratory Medicine, The First Affiliated Hospital of Wenzhou Medical University, Wenzhou 325000, People’s Republic of ChinaEmail 38805@163.comPurpose: The resistance of N. gonorrhoeae to antimicrobial agents has been increasing year by year due to the overuse of antibiotics. The primary aims of the present study were to investigate the molecular characteristics of the clinical isolates of Neisseria gonorrhoeae and the resistance to azithromycin in a Chinese tertiary hospital.Methods: From January 2014 to May 2017, a total of 55 clinical isolates of N. gonorrhoeae were collected. Genes associated with azithromycin resistance (AZM-R), including mutations in 23S rRNA alleles, the mtrR promoter and coding regions, and rplD and rplV were evaluated by PCR and DNA sequencing. All clinical isolates were subjected to N. gonorrhoeae multiantigen sequence typing (NG-MAST), while the AZM-R isolates were further characterized by multilocus sequence typing (MLST).Results: The AZM-R rate in this study was 23.64% (13/55), and a single (A)-nucleotide deletion mutation in the mtrR promoter region, a G45D mutation in the mtrR coding region, a point mutation in rplD, and an A2047G mutation in 23S rRNA alleles were detected in 13, 4, 3 and 4 isolates, respectively; no mutations were found in rplV. There was no significant difference in the mtrR coding region mutation rate between the azithromycin-sensitive and AZM-R groups (P > 0.05); however, there was a significant difference in the mutation rate of the mtrR promoter region (P < 0.05). Among the 55 isolates studied, 43 distinct NG-MAST were determined, while the AZM-R isolates were allocated into 10 distinct MLST/NG-MAST combinations. All three isolates with high-level AZM-R belonged to the sequence types (STs) NG-MAST ST1866 and MLST ST10899.Conclusion: N. gonorrhoeae clinical isolates from Wenzhou, eastern China, showed considerable genetic diversity. Measures should be implemented to monitor the spread of the NG-MAST ST1866 and MLST ST10899 N. gonorrhoeae clones, which exhibit high-level AZM-R in eastern China.Keywords: Neisseria gonorrhoeae, azithromycin, antimicrobial resistance, NG-MAST, MLST |
| first_indexed | 2024-12-13T11:51:44Z |
| format | Article |
| id | doaj.art-04fdd0464e5e4b0c9297ff6920312f26 |
| institution | Directory Open Access Journal |
| issn | 1178-6973 |
| language | English |
| last_indexed | 2024-12-13T11:51:44Z |
| publishDate | 2019-10-01 |
| publisher | Dove Medical Press |
| record_format | Article |
| series | Infection and Drug Resistance |
| spelling | doaj.art-04fdd0464e5e4b0c9297ff6920312f262022-12-21T23:47:20ZengDove Medical PressInfection and Drug Resistance1178-69732019-10-01Volume 123301330949287Antimicrobial Resistance And Molecular Characteristics Among Neisseria gonorrhoeae Clinical Isolates In A Chinese Tertiary HospitalZheng ZLiu LShen XYu JChen LZhan LChen HLin CJiang YXia HWang LYu FZhou Zheng,1 Li Liu,1 Xiaofei Shen,1 Jingyi Yu,1 Lijiang Chen,1 Lingling Zhan,1 Han Chen,1 Chunchan Lin,1 Ye Jiang,1 Hong Xia,1 Liangxing Wang,2 Fangyou Yu1,3 1Department of Clinical Laboratory, The First Affiliated Hospital of Wenzhou Medical University, Wenzhou, Zhejiang, People’s Republic of China; 2Department of Respiratory Medicine, The First Affiliated Hospital of Wenzhou Medical University, Wenzhou 325000, People’s Republic of China; 3Department of Laboratory Medicine, Shanghai Pulmonary Hospital, Tongji University School of Medicine, Shanghai 200443, People’s Republic of ChinaCorrespondence: Fangyou YuDepartment of Clinical Laboratory, The First Affiliated Hospital of Wenzhou Medical University, Wenzhou, Zhejiang, People’s Republic of ChinaEmail wzjxyfy@163.comLiangxing WangDepartment of Respiratory Medicine, The First Affiliated Hospital of Wenzhou Medical University, Wenzhou 325000, People’s Republic of ChinaEmail 38805@163.comPurpose: The resistance of N. gonorrhoeae to antimicrobial agents has been increasing year by year due to the overuse of antibiotics. The primary aims of the present study were to investigate the molecular characteristics of the clinical isolates of Neisseria gonorrhoeae and the resistance to azithromycin in a Chinese tertiary hospital.Methods: From January 2014 to May 2017, a total of 55 clinical isolates of N. gonorrhoeae were collected. Genes associated with azithromycin resistance (AZM-R), including mutations in 23S rRNA alleles, the mtrR promoter and coding regions, and rplD and rplV were evaluated by PCR and DNA sequencing. All clinical isolates were subjected to N. gonorrhoeae multiantigen sequence typing (NG-MAST), while the AZM-R isolates were further characterized by multilocus sequence typing (MLST).Results: The AZM-R rate in this study was 23.64% (13/55), and a single (A)-nucleotide deletion mutation in the mtrR promoter region, a G45D mutation in the mtrR coding region, a point mutation in rplD, and an A2047G mutation in 23S rRNA alleles were detected in 13, 4, 3 and 4 isolates, respectively; no mutations were found in rplV. There was no significant difference in the mtrR coding region mutation rate between the azithromycin-sensitive and AZM-R groups (P > 0.05); however, there was a significant difference in the mutation rate of the mtrR promoter region (P < 0.05). Among the 55 isolates studied, 43 distinct NG-MAST were determined, while the AZM-R isolates were allocated into 10 distinct MLST/NG-MAST combinations. All three isolates with high-level AZM-R belonged to the sequence types (STs) NG-MAST ST1866 and MLST ST10899.Conclusion: N. gonorrhoeae clinical isolates from Wenzhou, eastern China, showed considerable genetic diversity. Measures should be implemented to monitor the spread of the NG-MAST ST1866 and MLST ST10899 N. gonorrhoeae clones, which exhibit high-level AZM-R in eastern China.Keywords: Neisseria gonorrhoeae, azithromycin, antimicrobial resistance, NG-MAST, MLSThttps://www.dovepress.com/antimicrobial-resistance-and-molecular-characteristics-among-neisseria-peer-reviewed-article-IDRNeisseria gonorrhoeaeazithromycinantimicrobial resistanceNG-MASTMLST. |
| spellingShingle | Zheng Z Liu L Shen X Yu J Chen L Zhan L Chen H Lin C Jiang Y Xia H Wang L Yu F Antimicrobial Resistance And Molecular Characteristics Among Neisseria gonorrhoeae Clinical Isolates In A Chinese Tertiary Hospital Infection and Drug Resistance Neisseria gonorrhoeae azithromycin antimicrobial resistance NG-MAST MLST. |
| title | Antimicrobial Resistance And Molecular Characteristics Among Neisseria gonorrhoeae Clinical Isolates In A Chinese Tertiary Hospital |
| title_full | Antimicrobial Resistance And Molecular Characteristics Among Neisseria gonorrhoeae Clinical Isolates In A Chinese Tertiary Hospital |
| title_fullStr | Antimicrobial Resistance And Molecular Characteristics Among Neisseria gonorrhoeae Clinical Isolates In A Chinese Tertiary Hospital |
| title_full_unstemmed | Antimicrobial Resistance And Molecular Characteristics Among Neisseria gonorrhoeae Clinical Isolates In A Chinese Tertiary Hospital |
| title_short | Antimicrobial Resistance And Molecular Characteristics Among Neisseria gonorrhoeae Clinical Isolates In A Chinese Tertiary Hospital |
| title_sort | antimicrobial resistance and molecular characteristics among neisseria gonorrhoeae clinical isolates in a chinese tertiary hospital |
| topic | Neisseria gonorrhoeae azithromycin antimicrobial resistance NG-MAST MLST. |
| url | https://www.dovepress.com/antimicrobial-resistance-and-molecular-characteristics-among-neisseria-peer-reviewed-article-IDR |
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