Pharmacokinetics and tissue behavior of enrofloxacin and its metabolite ciprofloxacin in turbot Scophthalmus maximus at two water temperatures

文献类型： 外文期刊

第一作者： Liang Junping

作者： Liang Junping;Li Jian;Zhao Fazhen;Liu Ping;Chang Zhiqiang;Liang Junping;Zhao Fazhen

作者机构：

关键词： Scophthalmus maximus;enrofloxacin;ciprofloxacin;pharmacokinetics

期刊名称：CHINESE JOURNAL OF OCEANOLOGY AND LIMNOLOGY （ 影响因子：1.068； 五年影响因子：0.983 ）

ISSN： 0254-4059

年卷期： 2012 年 30 卷 4 期

页码：

收录情况： SCI

摘要： Turbot Scophthalmus maximus, an important aquaculture species in China, currently suffers from epizootic diseases because of high density aquaculture. Enrofloxacin has been used to treat various systemic bacterial fish infections. However, studies concerning the pharmacokinetics of enrofloxacin in turbot are limited. In this study, the pharmacokinetics of enrofloxacin and its metabolite ciprofloxacin, were investigated in the turbot following intravenous and oral administration at 10 mg enrofloxacin/kg body weight, at 16A degrees C and 10A degrees C water temperatures. The concentrations of enrofloxacin and ciprofloxacin in the main tissues (plasma, muscle, liver and kidney) were detected by HPLC. The results show that the plasma concentration-time data for enrofloxacin were best described as a two-compartment open model after intravenous and oral administration. Three pharmacokinetic equations were established between the concentrations and temperatures. The kinetic profile of enrofloxacin was temperature dependent. The absorption half-life of enrofloxacin was 1.99 h and 2.17 h after oral administration, whereas the elimination half-life of the drug was 98.63 h and 136.59 h at 16A degrees C and 10A degrees C, respectively. The peak concentration of enrofloxacin in plasma and tissues was higher at 16A degrees C than that at 10A degrees C, and the peak plasma concentration time in the liver was the shortest at both temperatures among those of other tissues. The plasma C (max) /MIC ratio varied between 11.08 and 5 540.00 at 16A degrees C; and between 7.92 and 3 960.00 at 10A degrees C. The AUC/MIC ratio was 467.82-280 690.00 at 16A degrees C, and 359.48-215 690.00 at 10A degrees C. These ratios indicate that it is possible to obtain therapeutic efficacy. Very low levels of ciprofloxacin were detected. The AUC ratios of ciprofloxacin and enrofloxacin in plasma suggest that plasma ciprofloxacin might play a minor role in enrofloxacin treatment for turbot.

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