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灯盏花素纳米晶的制备及质量评价                                       Δ


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        刘柳毅 ,温璐平 ,许男徽 ,李庆国 (1.中山大学附属第七医院药学部,广东 深圳 518107;2.广州中医药大学
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        中药学院,广州 510006)
        中图分类号 R283.6         文献标志码 A           文章编号 1001-0408(2020)15-1861-07
        DOI  10.6039/j.issn.1001-0408.2020.15.12

        摘  要   目的:制备灯盏花素(BRE)纳米晶,并对其进行质量评价。方法:采用介质研磨法制备BRE纳米晶混悬液,以其粒径和
        多分散系数(PDI)为评价指标,对研磨介质的直径和用量、研磨时间、稳定剂种类和比例、BRE比例进行考察,筛选最优工艺和处
        方;以BRE纳米晶形态、色泽、粒径和PDI为评价指标,对加不同种类冻干保护剂(5%甘露醇、5%葡萄糖、5%乳糖)和不加冻干保
        护剂进行考察,筛选最优冻干保护剂;采用粒度分析仪、扫描电镜、X-射线粉末衍射法(XRPD)、差示扫描量热法(DSC)对以最优
        工艺和处方所制备的BRE纳米晶进行质量评价。结果:BRE纳米晶最优工艺及处方为氧化锆珠粒径0.6 mm、用量450 g,研磨时
        间为1 h,稳定剂为15%吐温80,BRE比例为25%,不添加冻干保护剂。所制得的BRE纳米晶为质地疏松、色泽均匀的黄色粉末,
        平均粒径为(283.10±3.08)nm,平均PDI为0.212±0.021,平均Zeta电位为(-38.48±0.39)mV;其为棒状晶型,分布均一且晶型
        稳定;20 min内累积溶出度为(90.37±1.22)%;在温度(40±2)℃、相对湿度(75±5)%条件下,避光放置3个月后稳定性良好。结
        论:BRE纳米晶的制备方法简单、可行,且所制得的BRE纳米晶稳定性、溶出度均良好。
        关键词 灯盏花素;纳米晶;介质研磨法;处方;工艺;质量评价
        Preparation and Quality Evaluation of Breviscapine Nanocrystals
        LIU Liuyi ,WEN Luping ,XU Nanhui ,LI Qingguo(1. Dept. of Pharmacy,the Seventh Affiliated Hospital of
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        Sun Yat-Sen University, Guangdong Shenzhen 518107, China;2. School of Pharmaceutical Sciences,
        Guangzhou University of TCM,Guangzhou 510006,China)
        ABSTRACT    OBJECTIVE: To prepare Breviscapine(BRE) nanocrystals, and to evaluate its quality. METHODS: BRE
        nanocrystal suspensions were prepared by media milling method. The diameter and amount of grinding beads,grinding time,type
        and ratio of stabilizer,BRE ratio were investigated to screen the optimal technology and formulation with particle size and
        polydispersity index (PDI) as evaluation indexes. Using morphology,color,particle size and PDI of BRE nanocrystals as
        evaluation index,different lyoprotectants(50% mannitol,5% glucose,5% lactose)and without lyoprotectant were investigated to
        screen the optimal lyoprotectant. Particle size analyzer,scanning electron microscope(SEM),X-Ray diffraction (XRPD),
        differential scanning calorimeter(DSC)were used to evaluate the quality of BRE nanocrystals which was prepared with the optimal
        technology and formulation. RESULTS:The optimal technology and formulation of BRE nanocrystals included that particle size of
        0.6 mm zirconia beads with the amount of 450 g,grinding time of 1 h,stabilizer of 15% Tween-80,BRE ratio of 25%,without
        lyoprotectant. Prepared BRE nanocrystals were yellow powder with loose texture and uniform color. The average particle size of
        BRE nanocrystals was(283.10±3.08)nm,average PDI was(0.212±0.021)and average Zeta potential was(-38.48±0.39)mV.
        BRE nanocrystals were rod-like crystals,uniform in distribution and had no change in crystalline state. Accumulative dissolution of
        BRE nanocrystals were(90.37±1.22)% within 20 min. Under the condition of(40±2)℃ temperature and(75±5)% relative
        humidity,BRE nanocrystals remained stable after being kept away from light for 3 months. CONCLUSIONS:Established
        preparation method of BRE nanocrystals is simple and feasible. Prepared BRE nanocrystals show good stablility and dissolution.
        KEYWORDS    Breviscapine;Nanocrystals;Media milling;Formulation;Technology;Quality evaluation


                                                                                                       [2]
            灯盏花素(BRE)是从灯盏花中提取的一类总黄酮,                       泛应用于临床 。BRE属于生物药剂学第Ⅳ类药物 ,其
                                                                       [1]
        以野黄芩苷(又名灯盏乙素)为主要成分(占95%以上),                        水溶解性较差,在25 ℃水中的平衡溶解度约59 μg/mL ;
                                                                                                         [3]
        是治疗冠心病、脑血栓等心脑血管疾病的有效成分,广                           在小肠上皮细胞的渗透性较弱,口服生物利用度较低,
                                                                                                   [4]
           Δ 基金项目:广东省自筹经费类科技计划项目(No.2017ZC-                例如犬口服BRE的绝对生物利用度仅为0.4% ,从而限
        0140)                                              制了其在临床上的应用。因此,研究 BRE 新的给药系
           * 药 师 ,硕 士 。 研 究 方 向 :药 物 制 剂 新 技 术 。 电 话 :0755-
                                                           统,解决其生物利用度低的问题,已经成为药剂工作者
        81206168。E-mail:916293115@qq.com
                                                           的研究重点。
            # 通信作者:教授,博士。研究方向:药物制剂新技术。电话:
        020-39358044。E-mail:lqg8512@gzucm.edu.cn               纳米晶技术是近年来针对难溶性药物开发的一种


        中国药房    2020年第31卷第15期                                             China Pharmacy 2020 Vol. 31 No. 15  ·1861  ·
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