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·药学研究·


          同时测定大鼠血浆中阿托伐他汀及其活性和毒性代谢产物的方
          法建立与应用
                               Δ


                                                           1 #
          宋玉晨 ,杨 琳 ,孙明谦 ,任常英 ,刘建勋 ,张 颖 (1.中国中医科学院西苑医院基础医学研究所北京市中
                 1*
                          2
                                  1
                                          1
                                                   1
          药药理重点实验室,北京 100091;2.中国中医科学院西苑医院国家中医心血管病临床医学研究中心,北京
          100091)
          中图分类号  R969.1      文献标志码  A      文章编号  1001-0408(2023)08-0917-06
          DOI  10.6039/j.issn.1001-0408.2023.08.05


          摘  要  目的  建立同时测定大鼠血浆中阿托伐他汀(ATV)及其活性代谢产物2-羟基阿托伐他汀酸(2-HAT)、4-羟基阿托伐他汀
          酸(4-HAT)和毒性代谢产物阿托伐他汀内酯(ATL)的分析方法并应用于药代动力学研究。方法  采用液相色谱-串联质谱(LC-
          MS/MS)法进行分析。采用一步沉淀法对血浆样品进行处理(血浆样品经酸化调节 pH 值防止构型转化),采用梯度洗脱分析样
          品,分析时间为5 min;采用电喷雾离子源,以多反应监测模式进行正离子检测,ATV及其代谢产物2-HAT、4-HAT、ATL及内标匹
          伐他汀的定量离子对的质荷比(m/z)分别为559.3→440.2、575.2→440.3、575.0→440.2、540.9→448.2和422.2→290.0。对分析方法
          进行全面的方法学考察后测定ATV及其代谢产物2-HAT、4-HAT、ATL的浓度,并采用WinNonlin 6.1的非房室模型计算ATV及其
          代谢产物的药代动力学参数。结果  方法学考察结果表明,空白血浆的内源性物质不干扰待测成分的测定,标准曲线线性关系良
          好,ATV、2-HAT、4-HAT和ATL的定量下限分别为0.5、0.5、0.25、0.063 nmol/L。精密度、准确度、回收率、基质效应和稳定性考察均
          符合生物分析要求。药代动力学分析表明,大鼠灌胃给药后,ATV迅速代谢,主要以ATV和2-HAT的形式暴露于血液循环,内酯
          型代谢物浓度最低。结论  建立了针对ATV及其活性和毒性代谢产物的准确、快速、灵敏的血药浓度分析方法,运用该方法可全
          面解析阿托伐他汀钙在大鼠体内的药代动力学特征。
          关键词  阿托伐他汀钙;液相色谱-串联质谱;羟基阿托伐他汀;阿托伐他汀内酯;药代动力学


          Establishment  and  application  for  simultaneous  determination  method  of  atorvastatin  and  its  active/toxic
          metabolites in rat plasma
                                                  1
          SONG Yuchen ,YANG Lin ,SUN Mingqian ,REN Changying ,LIU Jianxun ,ZHANG Ying(1.  Beijing  Key
                                  2
                                                                                             1
                                                                               1
                       1
                                                                  1
          Laboratory  of  Pharmacology  of  Chinese  Materia  Medica,  Institute  of  Basic  Medical  Sciences  of  Xiyuan
          Hospital,  China Academy  of  Chinese  Medical  Sciences,  Beijing  100091,  China;2.  National  Clinical  Research
          Center  for  Chinese  Medicine  Cardiology,  Xiyuan  Hospital,  China  Academy  of  Chinese  Medical  Sciences,
          Beijing 100091, China)
          ABSTRACT   OBJECTIVE To establish a method for simultaneous determination of atorvastatin (ATV) and its active metabolites
          2-hydroxy  atorvastatin  acid (2-HAT),  4-hydroxy  atorvastatin  acid (4-HAT)  and  toxic  metabolite  atorvastatin  lactone (ALT)  in  rat
          plasma and apply it for pharmacokinetic study. METHODS LC-MS/MS method was adopted for analysis. The one-step precipitation
          method  was  used  for  processing  plasma  samples (plasma  samples  were  pretreated  by  acidification  to  adjust  pH  value  so  as  to
          prevent  inversion  of  configuration),  gradient  elution  was  used  to  analyze  the  samples,  and  the  analysis  time  was  5  min.
          Electrospray  positive  ionization  was  adopted,  and  positive  ion  scanning  was  performed  in  multi-reaction  monitoring.  The  m/z  of
          quantified  ion  pairs  of ATV  and  its  metabolites  such  as  2-HAT,  4-HAT  and ATL,  and  internal  standard  pitavastatin  were  559.3→
          440.2,  575.2→440.3,  575.0→440.2,  540.9→448.2  and  422.2→290.0,  respectively.  After  conducting  a  comprehensive
                                                             methodological  investigation  of  the  analytical  method,  the
             Δ 基金项目 国家自然科学基金资助项目(No.81873179);中国中            concentrations  of  ATV  and  its  metabolites  2-HAT,  4-HAT,
          医科学院科技创新工程项目(No.CI2021A04906)                      and ATL were determined, and the pharmacokinetic parameters
             *第一作者 硕士研究生。研究方向:药物代谢动力学。E-mail:                of  ATV  and  its  metabolites  were  calculated  using  the  non-
          1980919247@qq.com
                                                             compartment  model  of  WinNonlin  6.1.  RESULTS  The  results
             # 通信作者 研究员,博士生导师,博士。研究方向:药物代谢动力
          学。电话:010-62835639。E-mail:zhyingde@sina.com         of  methodological  validation  showed  that  endogenous


          中国药房  2023年第34卷第8期                                                 China Pharmacy  2023 Vol. 34  No. 8    · 917 ·
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