恩诺沙星在红笛鲷体内的药代动力学Pharmacokinetics of Enrofloxacin in Lutjanus sanguineus
汤菊芬,简纪常,鲁义善,黄郁葱
摘要(Abstract):
在水温26±2℃、盐度28条件下,恩诺沙星(enrofloxacin,EF)按5 mg/kg的剂量腹腔注射和口灌红笛鲷(Lutjanus sanguineus),用反相高效液相色谱法研究恩诺沙星在红笛鲷体内的药代动力学和组织分布。结果显示:注射和口灌后红笛鲷血浆的药时数据均符合一级吸收二室模型;血药达峰时间(tp)分别为0.75和1.5 h,血药质量浓度峰值(cmax)分别为5.22和3.94μg/mL,药时曲线下面积(AUC)分别36.98和17.24 mg/(L.h),消除半衰期(t1/2β)分别为13.28和9.18 h;恩诺沙星在组织中分布较广,注射和灌服给药肌肉、肝脏和肾脏的cmax分别为3.53和3.40μg/g、4.08和3.98μg/g、11.23和5.40μg/g,tp分别为1.5和2.0 h、1.0和2.0 h、0.75和1.5 h,AUC分别33.17和23.12 mg/(L.h)、39.36和18.20 mg/(L.h)、98.97和56.69 mg/(L.h);EF在红笛鲷体内消除速度较慢,注射和灌服给药肌肉、肝脏和肾脏的t1/2β分别为22.08和83.32 h、41.52和94.47 h、20.94和21.81 h。表明恩诺沙星注射给药在红笛鲷体内的吸收和消除均快于口灌给药。
关键词(KeyWords): 红笛鲷;恩诺沙星;药物代谢动力学
基金项目(Foundation): 农业部农业公益项目(201203085)
作者(Author): 汤菊芬,简纪常,鲁义善,黄郁葱
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