洛美沙星对大鼠血胰屏障通透性的研究  

Permeability of Lomefloxacin Through Blood-pancreatic Barrier in Rats

作　　者：马珂 祁金文 俞佳 金戈 赵大建 姜蔚 胡智明 

机构地区：[1]浙江省立医院药剂科,杭州市310014 [2]浙江省立医院普外科,杭州市310014

出　　处：《中国药房》2002年第5期271-272,共2页China Pharmacy

摘　　要：目的 :研究洛美沙星对大鼠血胰屏障的通透性。方法 :经尾静脉推注洛美沙星 (20mg/kg) ,在规定的时间点取样 ,用高效液相色谱法 (HPLC)测定胰腺、肝脏组织和血清中药物的含量。结果 :洛美沙星在大鼠体内过程符合二室模型 ;血清、胰腺、肝脏组织药物浓度在5min时最高 ,分别为65 551μg/ml、48 801μg/g、84 121μg/g ,然后持续下降 ;10min时胰组织的药物浓度已高于血清 ,480min胰组织中仍维持较高浓度 ;药物对血胰屏障的通透率 (PR)在5min时最低 (0 744) ,然后上升 ,480min时达到3 817。结论 :静脉推注洛美沙星后 ,药物对血胰屏障具有良好的通透性 。OBJECTIVE:To investigate the permeability of lomefloxacin through blood-pancreatic barrier in rats.METHO-DS:Lomefloxacin(20mg/kg body weight) was injected through caudal vein.At the given time points,the samples were collected.The concentrations of lomefloxacin in the serum,pancreatic tissue and liver tissue were measured by HPLC.RESULTS:The concentration-time profiles of lomefloxacin could be described as two-compartment model in rats.The peak concentrations in serum,pancreatic tissue and liver tissue were 65.550μg/ml,48.801μg/g and 84.121μg/g at 5 min post-injection respectively.Then the concentrations decreased quickly in all of them.Concentrations in pancreatic tissue were higher than those in serum at 10 min and even at 480 min post-injection.The permeation ratio (PR) through blood-pancreatic barrier was 0.744 at 5 min and rose to 3.817 at 480min.CONCLUSION:After intravenous injection,lomefloxacin can permeate blood-pancreatic barrier satisfactory,therefore it is worthy of being recommended for prevention and treatment of pancreatic infections.

关 键 词：洛美沙星 血胰屏障 通透率 胰腺炎 

分 类 号：R978.1[医药卫生—药品]