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麻黄非生物碱部位抗过敏性哮喘活性组分的化学成分分析                                                                 Δ


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        靳京妹 ,于大永 ,侯 滔 ,张秀莉 ,史丽颖 (1.大连大学生命科学与技术学院,辽宁 大连 116622;2.中国科
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        学院大连化学物理研究所,辽宁 大连 116023)
        中图分类号 R284.1          文献标志码 A          文章编号 1001-0408(2020)09-1068-06
        DOI   10.6039/j.issn.1001-0408.2020.09.09

        摘   要   目的:为阐明麻黄非生物碱部位抗过敏性哮喘的药效物质基础提供参考。方法:麻黄用85%乙醇提取、正庚烷萃取后经
        固相萃取(填料为AC18 )前处理,对麻黄提取物进行非生物碱部位富集,并采用高效液相色谱法经Unitary C18柱和Eclipse XDB-C18
        色谱柱进行麻黄非生物碱类组分制备。以HT-29细胞中高表达的G蛋白偶联受体35(GPR35受体)为靶标、GPR35受体激动剂敏
        喘宁(1 μmol/L)为阳性对照、动态质量重置(DMR)响应值为检测指标,通过无标记细胞整合药理学方法考察各组分(质量浓度均
        为100 μg/mL)对GPR35受体的激动活性和脱敏活性,以筛选抗过敏性哮喘的活性组分。应用高效液相色谱-四极杆飞行时间质谱
        (HPLC-Q-TOF-MS)技术对活性组分的化学成分进行鉴定。结果:麻黄非生物碱部位主要分为固相萃取前处理的沉淀部分和
        95%甲醇洗脱部分,从上述两部分中共富集得到了 20 个组分。其中,沉淀部分中组分 F1.5~F1.10 及 95%甲醇洗脱部分中组分
        F2.5~F2.10对GPR35受体有较强的激动活性,同时对GPR35受体激动剂敏喘宁显示出了较强的脱敏活性;并且沉淀部分中组分
        F1.5~F1.10在HT-29细胞上引起的DMR响应信号强度甚至超过了阳性对照药敏喘宁。经HPLC-Q-TOF-MS分析,共从活性组分
        中鉴定出了24个化合物,其中黄酮类14个、挥发油类2个、有机羧酸类7个、蒽醌类1个。结论:麻黄非生物碱部位主要以黄酮类
        成分为主,其具有一定的抗过敏性哮喘活性。
        关键词 麻黄;非生物碱部位;G蛋白偶联受体35;过敏性哮喘;化学成分;鉴定

        Analysis of Chemical Components of Anti-allergic Asthma Active Fractions in Alkaloids-free Part of
        Ephedrae Herba
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        JIN Jingmei ,YU Dayong ,HOU Tao ,ZHANG Xiuli ,SHI Liying (1.School of Life Sciences and
        Biotechnology,Dalian University,Liaoning Dalian 116622,China;2.Dalian Institute of Chemical Physics,
        Chinese Academy of Sciences,Liaoning Dalian 116023,China)
        ABSTRACT    OBJECTIVE:To provide reference for elucidating the anti-allergic asthma constituents in alkaloids-free part of
        Ephedrae Herba. METHODS:Ephedrae Herba was extracted with 85% ethanol and n-heptane,and then subjected to solid-phase
        extraction (filler AC18 ) for pretreatment to enrich alkaloids-free part from the extract of Ephedrae Herba. HPLC method was
        adopted,and alkaloids-free fractions of Ephedrae Herba were performed on Unitary C18 column and Eclipse XDB-C18 column.
        Using high expression G protein coupled-receptor 35(GPR35 receptor)in HT-29 cell as target,GPR35 receptor agonist zaprinast
        (1 μ mol/L) as positive control,DMR response value as the detection index,the agonistic and desensitizing activity of each
        fraction(100 μg/mL)on GPR35 receptor was screened by label-free integrated pharmacological method,so as to screen active
        anti-allergic asthma fraction. HPLC-Q-TOF-MS method was used to identify the chemical composition of the selected active
        fractions. RESULTS:The alkaloids-free part of Ephedrae Herba was divided into two parts,involving the precipitated part before
        solid phase extraction and the 95% methanol elution part;from them,20 fractions were screened. Among them,the precipitated
        fraction F1.5-F1.10 and 95% methanol eluted fraction F2.5-F2.10 had a strong agonistic activity on GPR35 receptor;at the same
        time,GPR35 receptor agonist zaprinast showed a relatively strong desensitization activity. The signal intensity of DMR induced by
        F1.5-F1.10 in the precipitated part of HT-29 cells was even higher than that of reference drug zaprinast. By HPLC-Q-TOF-MS
        analysis,24 chemical components were identified from active fractions,involving 14 flavonoids,2 volatile oils,7 organic
        carboxylic acids,1 anthraquinones. CONCLUSIONS:The alkaloid-free part of Ephedrae Herba is mainly flavonoids and has
        anti-allergic asthma activity.
        KEYWORDS     Ephedrae Herba;Alkaloids-free part;G protein coupled-receptor 35;Allergic asthma;Chemical component;
        Indentification


                                                                麻黄为草麻黄(Ephedra sinica Stapf)、中麻黄(Eph-
            Δ 基金项目:辽宁省自然科学基金指导计划项目(No.201602027)
                                                            edra intermedia Schrenk et C.A.Mey.)或木贼麻黄(Ephe-
            *硕士研究生。研究方向:天然活性物质。电话:0411-87402107。
                                                            dra equisetina Bge.)的干燥草质茎,具有宣肺平喘、发汗
        E-mail:jinjingmei666@163.com
            # 通信作者:副教授,博士。研究方向:天然活性物质。电话:                   解表、利水消肿等功效          [1-2] 。研究表明,麻黄中主要含有
        0411-87402107。E-mail:shiliying@dlu.edu.cn           生物碱类、黄酮类、挥发油类、有机酚酸类和糖类等成


        ·1068  ·  China Pharmacy 2020 Vol. 31 No. 9                                  中国药房    2020年第31卷第9期
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