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森苷C的Q、Ka值(空肠、回肠、结肠);10 g/L天麻极细粉中天麻素的Q值(结肠),巴利森苷A和巴利森苷C的Q、Ka值(空肠、回肠、
        结肠),巴利森苷B的Q、Ka值(结肠);10 g/L天麻超微粉中天麻素的Q值(结肠)和Ka值(空肠、回肠、结肠),巴利森苷A和巴利森苷
        C 的 Q、Ka值(空肠、回肠、结肠),巴利森苷 B 的 Q 值(空肠、回肠、结肠)和 Ka值(回肠、结肠)均较同组十二指肠显著降低(P<
        0.05)。2.5 g/L天麻极细粉中天麻素的Q、Ka值(空肠),2.5 g/L天麻超微粉中天麻素的Q值(空肠、回肠)和Ka值(空肠),5 g/L天麻
        细粉中天麻素的Q、Ka值(空肠、回肠);2.5 g/L天麻极细粉中巴利森苷B的Q值(空肠、回肠)和Ka值(空肠),5 g/L天麻细粉中巴利
        森苷B的Ka值(空肠、回肠),10 g/L天麻极细粉中巴利森苷B的Ka值(回肠)均较同组十二指肠显著升高(P<0.05)。5 g/L以及10
        g/L天麻细粉、极细粉、超微粉中天麻素、巴利森苷A、巴利森苷B、巴利森苷C的Q、Ka值(全肠段)均较同肠段同粒径2.5 g/L天麻粉
        显著升高(P<0.05或P<0.01)。结论:天麻中的4种有效成分在4个肠段均有吸收,且主要集中于小肠。天麻中的天麻素可能为
        被动吸收,巴利森苷类则可能为主动转运;粒径可影响上述4种有效成分的肠吸收特性。
        关键词 天麻;粒径;外翻肠囊模型;吸收特性;天麻素;巴利森苷类

        Study on Absorption Characteristics of Gastrodia elata Powder with Different Particle Sizes Based on Rat
        Everted Intestinal Sac Model in vitro
        CHEN Yan ,LIU Fan ,GONG Zipeng ,CHEN Tingting ,TAO Tao ,LIU Zhi ,WANG Aimin (1. Guizhou
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        Provincial Key Laboratory of Pharmaceutics & State Key Laboratory of Functions and Applications of Medicinal
        Plants & Guizhou Provincial Engineering Research Center for the Development and Application of Ethnic Medicine
        and TCM & School of Pharmacy,Guizhou Medical University,Guiyang 550004,China;2. Dept. of Rehabilitation
        Medicine,Guizhou Provincial People’s Hospital,Guiyang 550002,China;3. Dept. of Pharmacy,the Affiliated
        Hospital of Guizhou Medical University,Guiyang 550001,China)
        ABSTRACT OBJECTIVE:To compare the absorption characteristics of gastrodin,parishin A,parishin B and parishin C of
        Gastrodia elata powder,and to explore the effect of particle size on intestinal absorption of above components. METHODS:Based on
        everted intestinal sac model,using accumulative absorption amount(Q)and absorption rate constant(Ka )as indexes,UPLC-MS/MS
        method was used to determine the absorption of gastrodin,parishin A,parishin B and parishin C from different doses(2.5,5,10 g/L)
        of G. elata powder with different particle sizes(fine powder 146 μm,superfine powder 52 μm,ultrafine powder 37 μm)in different
        segments(duodenum,jejunum,ileum and colon). RESULTS:Q and Ka of gastrodin and parishin B(intestinal segment),Q(colon)
        and Ka(ileum and colon)of parishin C in 2.5 g/L G. elata superfine powder;Q and Ka of gastrodin(intestinal segment),Q and Ka of
        parishin B (duodenum,jejunum,ileum) and Ka of parishin C (colon) in 2.5 g/L G. elata ultrafine powder;Q of gastrodin
        (duodenum),Q of parishin A and parishin B(intestinal segment)and Q of parishin C(duodenum,jejunum)in 5 g/L G. elata
        superfine powder;Q(duodenum jejunum,colon)and Ka(intestinal segment)of gastrodin,Q of parishin B(duodenum,ileum and
        colon)and Q of parishin C(duodenum,ileum)in 5 g/L G. elata ultrafine powder;Q and Ka of parishin B(jejunum,ileum),Q of
        parishin C (jejunum,ileum) in 10 g/L G. elata superfine powder as well as Q (colon) and Ka (duodenum) of gastrodin,Q
        (duodenum,ileum,colon)and K a(duodenum,colon)of parishin B,Q(duodenum,ileum)and K a(duodenum)of parishin C in 10 g/L
        G. elata ultrafine powder were all increased significantly,compared with the same dose of G. elata fine powder(P<0.05 or P<0.01).
        Ka of parishin A(jejunum)and Q of parishin C(duodenum)in 2.5 g/L G. elata superfine powder;Ka of parishin A(jejunum,ileum),
        Q and Ka of parishin C(duodenum,jejunum)in 2.5 g/L G. elata ultrafine powder;Ka of gastrodin(jejunum,ileum and colon),Ka of
        parishin A(colon),Ka of parishin B(ileum)and Ka of parishin C(jejunum,ileum)in 5 g/L G. elata superfine powder;Ka of gastrodin
        and parishin C(jejunum,ileum and colon),Q(jejunum,colon)and Ka(colon)of parishin A,Ka of parishin B(jejunum,ileum)in 5
        g/L G. elata ultrafine powder;Q and Ka of parishin A(ileum)in 10 g/L G. elata superfine powder;Q(duodenum)and Ka(jejunum)
        of parishin A,Ka of parishin C(jejunum)in 10 g/L G. elata ultrafine powder were decreased significantly,compared with the same
        dose of G. elata fine powder(P<0.05 or P<0.01). Q of gastrodin(colon),Q(colon)and Ka(ileum,colon)of parishin A,Q and Ka
        of parishin B(jejunum,colon),Q and Ka of parishin C(ileum,colon)in 2.5 g/L G. elata fine powder;Q and Ka of gastrodin
        (colon),Q(ileum,colon)and Ka(jejunum,ileum,colon)of parishin A,Ka of parishin C(colon)in 2.5 g/L G. elata superfine
        powder;Q(colon)and Ka(jejunum,ileum,colon)of parishin A and C,Q and Ka(ileum,colon)of parishin B in 2.5 g/L G. elata
        ultrafine powder;Q and Ka of gastrodin,parishin A and C(colon),Ka of parishin B(colon)in 5 g/L G. elata fine powder;Q and Ka of
        gastrodin and parishin A(colon),Q and Ka of parishin C(jejunum,ileum,colon)in 5 g/L G. elata superfine powder;Q and Ka of
        gastrodin(ileum,colon),Q of parishin A(jejunum,ileum,colon),Q and Ka of parishin B(jejunum,colon),Q(jejunum,colon)
        and Ka(jejunum,ileum,colon)of parishin C in 5 g/L G. elata ultrafine powder;Q of gastrodin(colon),Q and Ka of parishin A,B
        and C(jejunum,ileum,colon)in 10 g/L G. elata fine powder;Q of gastrodin(colon),Q and Ka of parishin A and C(jejunum,
        ileum,colon),Q and Ka of parishin B(colon)in 10 g/L G. elata superfine powder;Q(colon)and Ka(jejunum,ileum,colon)of
        gastrodin,Q and Ka of parishin A and C(jejunum,ileum,colon),Q(jejunum,ileum,colon)and Ka(ileum,colon)of parishin B in


        ·414  ·  China Pharmacy 2020 Vol. 31 No. 4                                   中国药房    2020年第31卷第4期
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