CQ止痛复方中青藤碱和川芎嗪的脑通透性研究  

UHPLC quantification and brain permeability study of sinomenine and ligustrazine in CQM after single intravenous administration

作　　者：李涛[1] 赵小亮[1] 聂颖兰[1] 焦玥[1] 刘洋[1] 张美玉[1] 李玉娟[1] 王志国[1] 王丹巧[1] LI Tao;ZHAO Xiao-liang;NIE Ying-lan;JIAO Yue;LIU Yang;ZHANG Mei-yu;LI Yu-juan;WANG Zhi-guo;WANG Dan-qiao(Beijing Key Laboratory of Traditional Chinese Medicine Basic Research on Prevention and Treatment of Major Diseases,Experimental Research Center,China Academy of Chinese Medical Sciences,Beijing 100700,China)

机构地区：[1]中国中医科学院医学实验中心北京市中医药防治重大疾病基础研究重点实验室

出　　处：《药学学报》2019年第12期2308-2315,共8页Acta Pharmaceutica Sinica

基　　金：国家自然科学基金资助项目(81503278);中国中医科学院自主业务选题资助项目(ZZ2016001,ZZ2014001)

摘　　要：建立给予CQ止痛复方(Chuanxiong Qingfengteng mixture,CQM)后大、小鼠血浆、脑组织及细胞液等生物样品中青藤碱和川芎嗪的UHPLC-UV定量分析方法,并研究这两种组分的脑通透性。分析方法经选择性、线性范围、准确度、精密度、稳定性等考察确证适合以上生物样品中青藤碱和川芎嗪的测定。大鼠和小鼠静脉注射CQM,5 min^2 h在脑脊液和脑组织均能检测到青藤碱和川芎嗪,且脑组织与脑脊液的浓度具有强烈的相关性(Pearson's R>0.86,P<0.001);其中,川芎嗪的脑组织/血浆分配系数高于青藤碱。血浆游离分数青藤碱为78.92%,川芎嗪为34.07%,且在各自浓度范围内血浆蛋白结合率无明显依赖性。Caco-2细胞孵育CQM,青藤碱和川芎嗪在细胞单层膜上表观渗透系数(Papp)分别为1.30和3.64×10^-6 cm·s^-1,属中通透性和高通透性化合物;联用P-糖蛋白(P-gp)抑制剂后,各组分Papp均未增加。上述结果表明CQM各组分能快速通过血脑屏障;川芎嗪的脑通透性高于青藤碱;各组分的跨膜转运可能不受P-gp等外排转运体的影响。本研究所有动物实验过程和动物关怀均遵守中华人民共和国《实验动物管理条例》,并得到中国中医科学院医学实验中心伦理委员会的批准。Chuanxiong Qingfengteng mixture(CQM)is an analgesic developed based on clinical evidence and traditional Chinese medicine theory,which majorly consists of Ligusticum chuanxiong and Sinomenium acutum extracts.The current study aims to establish an UHPLC-UV method for the quantification of sinomenine and ligustrazine after CQM administration to rats,mice and cells,and to study the brain permeability of sinomenine and ligustrazine.The selectivity,linearity,accuracy,precision and stability of the established method demonstrated that it was suitable for the determination of sinomenine and ligustrazine in biological samples such as plasma,brain tissue and cellular fluid.After CQM was intravenously administered to rats and mice,both sinomenine and ligustrazine were detected in the brain from 5 min-2 h.The CSF/plasma partition coefficients(Kp,C/P)of each component were higher than those of brain tissue/plasma partition coefficient(Kp,B/P),the Kp,C/P and Kp,B/P of ligustrazine were higher than those of sinomenine.The concentrations between CSF and brain tissue were strongly correlated(Pearson's R>0.86,P<0.001).The unbound fraction in plasma of sinomenine and ligustrazine was 78.92%and 34.07%,respectively.The plasma protein binding rates displayed concentration-independent behavior within their respective in vivo concentration ranges.After CQM co-cultured with Caco-2 cell monolayers,the apparent permeability coefficient(Papp)of sinomenine and ligustrazine were 1.30×10^-6 and 3.64×10^-6 cm·s^-1,respectively,following into the range of the intermediate and high permeability compounds.The efflux ratio(Papp(basolateral→apical)/Papp(apical→basolateral))of sinomenine and ligustrazinewere 0.67 and 0.85,respectively.When combinedwith P-glycoprotein inhibitor,the Papp of each component did not increase.In conclusion,the UHPLC-UV assay was successfully applied for the brain permeability study of CQM,the components of CQM can be quickly distributed to cerebrospinal fluid and pass through the blood-brain barrier.The brain perme

关 键 词：青藤碱 川芎嗪 脑通透性 血脑屏障 转运体 

分 类 号：R917[医药卫生—药物分析学]