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Rational Use of Danofloxacin for Treatment of Mycoplasma gallisepticum in Chickens Based on the Clinical Breakpoint and Lung Microbiota Shift

文献类型： 外文期刊

作者： Wang, Shuge 1 ; Huang, Anxiong 1 ; Gu, Yufeng 1 ; Li, Jun 5 ; Huang, Lingli 1 ; Wang, Xu 1 ; Tao, Yanfei 1 ; Liu, Zhenli 1 ; Wu, Congming 4 ; Yuan, Zonghui 1 ; Hao, Haihong 1 ;

作者机构： 1.Natl Reference Lab Vet Drug Residues HZAU, Wuhan 430070, Peoples R China

2.MAO Key Lab Detect Vet Drug Residues, Wuhan 430070, Peoples R China

3.MOA Lab Risk Assessment Qual & Safety Livestock &, Wuhan 430070, Peoples R China

4.China Agr Univ, Coll Vet Med, Natl Ctr Vet Drug Safety Evaluat, Beijing 100193, Peoples R China

5.Jiangsu Acad Agr Sci, Inst Food Safety & Nutr, Nanjing 210014, Peoples R China

关键词： danofloxacin; Mycoplasma gallisepticum; epidemiological cutoff values; PK-PD cutoff values; clinical cutoff values; clinical breakpoint; lung microbiota

期刊名称：ANTIBIOTICS-BASEL （ 影响因子：5.222； 五年影响因子：5.396 ）

ISSN： 2079-6382

年卷期： 2022 年 11 卷 3 期

页码：

收录情况： SCI

摘要： The study was to explore the rational use of danofloxacin against Mycoplasma gallisepticum (MG) based on its clinical breakpoint (CBP) and the effect on lung microbiota. The CBP was established according to epidemiological cutoff value (ECV/COWT), pharmacokinetic-pharmacodynamic (PK-PD) cutoff value (COPD) and clinical cutoff value (COCL). The ECV was determined by the micro-broth dilution method and analyzed by ECOFFinder software. The COPD was determined according to PK-PD modeling of danofloxacin in infected lung tissue with Monte Carlo analysis. The COCL was performed based on the relationship between the minimum inhibitory concentration (MIC) and the possibility of cure (POC) from clinical trials. The CBP in infected lung tissue was 1 mu g/mL according to CLSI M37-A3 decision tree. The 16S ribosomal RNA (rRNA) sequencing results showed that the lung microbiota, especially the phyla Firmicutes and Proteobacteria had changed significantly along with the process of cure regimen (the 24 h dosing interval of 16.60 mg/kg b.w for three consecutive days). Our study suggested that the rational use of danofloxacin for the treatment of MG infections should consider the MIC and effect of antibiotics on the respiratory microbiota.

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