Permeability of Lomefloxacin Through Blood-pancreatic Barrier in Rats / 中国药房

ABSTRACT

OBJECTIVE:To investigate the permeability of lomefloxacin through blood-pancreatic barrier in rats.METHO-DSLomefloxacin(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 65.550?g/ml,48.801?g/g and 84.121?g/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.