Objective:To compare the pharmacokinetic differences of the main components of Naoxintong capsule(NXTC)in normal and acute blood stasis rats.Materials and Methods:Rats were subcutaneously injected with adrenaline hydrochloride twice;during the two subcutaneous injections,the rats were placed in ice water for 4 min to reproduce the model rat of acute blood stasis.The normal and acute blood stasis rats were administrated a 5.04 g/kg dose of NXTC suspension.Then,blood samples were collected from the posterior retinal venous plexus at different time points.Plasma concentrations of four major bio-active components including caffeic acid,ferulic acid,formononetin,and tanshinone ⅡA in NXTC were measured using ultra-performance liquid chromatography coupled with triple-quadrupole mass spectrometry.Phoenix WinNonlin v6.2 software was used to calculate the pharmacokinetic parameters.Results:Compared with the normal rats,the acute blood stasis rats showed a significant decrease in Cmax of ferulic acid and formononetin,A UCall of caffeic acid and ferulic acid,and A UCINFobs of ferulic acid.Conversely,an increase in the Vz_F_obs and MRTlast of ferulic acid and caffeic acid was observed.These findings demonstrate that the absorption of the four NXTC components was weakened in the acute blood stasis rats and that the elimination time was prolonged.Conclusions:The significant difference in some parameters of the four NXTC components between the normal and acute blood stasis rats might be caused by an increase in blood viscosity and the subsequent slowing down of blood flow in the acute blood stasis rats.The pharmacokinetic study conducted in pathological state can provide important information and scientific basis for further rational clinical application of NXTC.

Wei-Xia Li;Shu-Qi Zhang;Man-Man Li;Hui Zhang;Xiao-Yan Wang;Lu Niu;Jin-Fa Tang;Xue-Lin Li

Department of Pharmacy,Henan Province Engineering Laboratory for Clinical Evaluation Technology of Chinese Medicine,The First Affiliated Hospital of Henan University of Chinese Medicine;School of Pharmacy,Henan University of Chinese Medicine;Provincial and Ministerial co Construction Collaborative Innovation Center for Prevention and Treatment of Respiratory Diseases with Traditional Chinese Medicine of Henan University of Chinese Medicine,Zhengzhou,China

世界中医药杂志（英文版）

[1]Wei-Xia Li;Shu-Qi Zhang;Man-Man Li;Hui Zhang;Xiao-Yan Wang;Lu Niu;Jin-Fa Tang;Xue-Lin Li-.Pharmacokinetic Comparison of Four Major Bio-Active Components of Naoxintong Capsule in Normal and Acute Blood Stasis Rats Using Ultra-Performance Liquid Chromatography Coupled with Triple-Quadrupole Mass Spectrometry)[J].世界中医药杂志（英文版）,2022(01):92-99

Pharmacokinetic,Naoxintong,Stasis,NXTC,UCall,UCINFobs

Comparison,Four,Major,Bio,Active,Components,Capsule,Normal,Acute,Blood,Rats,Using,Ultra,Performance,Liquid,Chromatography,Coupled,Triple,Quadrupole,Mass,Spectrometry,Objective,To,compare,pharmacokinetic,differences,main,components,capsule,normal,acute,blood,stasis,rats,Materials,Methods,were,subcutaneously,injected,adrenaline,hydrochloride,twice,during,two,injections,placed,water,reproduce,model,administrated,dose,suspension,Then,samples,collected,from,posterior,retinal,venous,plexus,different,points,Plasma,concentrations,four,major,bio,active,including,caffeic,acid,ferulic,formononetin,tanshinone,measured,using,ultra,performance,liquid,chromatography,coupled,triple,quadrupole,mass,spectrometry,Phoenix,WinNonlin,v6,software,was,calculate,parameters,Results,Compared,showed,significant,decrease,Cmax,Conversely,increase,Vz,MRTlast,observed,These,findings,demonstrate,that,absorption,weakened,elimination,prolonged,Conclusions,some,between,might,caused,by,viscosity,subsequent,slowing,down,flow,study,conducted,pathological,state,provide,important,information,scientific,basis,further,rational,clinical,application

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