防治哮喘用白芥子涂法复方巴布剂的制备及体内外研究

Preparation,in vitro and in vivo evaluation of cataplasm of white mustard seed varnish to prevent asthma

该研究优化了白芥子涂法巴布剂处方和工艺,在体动物模型上评价其预防哮喘效果。首先以人体感官评价作为指标,对涂布厚度、交联剂类型、甘羟铝用量、聚丙烯酸钠用量、黏合剂类型进行了单因素考察。以初黏力、剥离强度、人体感官评价作为指标,以甘油、柠檬酸、羧甲基纤维素钠作为主要影响因素进行了巴布剂空白基质的正交试验优化。空白巴布剂最优处方质量比为:甘油-水-乙醇-PEG400-甘羟铝-柠檬酸-羧甲基纤维素钠-聚丙烯酸钠2∶8∶0.8∶0.4∶0.07∶0.15∶0.1∶0.5。采用醇提法提取白芥子、延胡索、甘遂有效成分,挥发油提取器提取细辛挥发油。通过初黏力、剥离强度、人体感官评价,每100 g巴布剂中最佳含药量为11 g(11%)。建立哮喘模型大鼠,以挠鼻时间作为指标,证明高剂量组(17%)白芥子涂法巴布剂对哮喘模型大鼠的挠鼻时间有显著抑制作用(P=0.037<0.05),中剂量(11%)、低剂量(4%)和市售三伏贴组在给药前后大鼠挠鼻时间无显著性差异。该研究为哮喘预防提供了一种新选择。

The aim of the manuscript was to optimize formulations and preparation technologies of cataplasm of white mustard seed varnish, and to evaluate its anti-asthma effect on rats. The single factor experiments included spreading thickness, types of crosslinking agents, dihydroxyaluminum aminoacetate amount, sodium polyacrylate amount, types of adhesive agents with human sense as the evaluation index. Blank cataplasm matrix was optimized by the orthogonal experiment with the amount of glycerine, citric acid, and sodium carboxymethylcellulose as the major influential factors. Initial adhesive force, peeling strength and human sense were as the evaluation index. The optimized formulation of blank cataplasm were as followings： glyeerine-water-ethanol-PEG400-dihydroxyaluminum aminoacetate-citric acid-sodium carboxymethylcellulose-sodium carboxymethylcellulose 2： 8： 0. 8： 0. 4： 0. 07： 0. 15： 0. 1： 0. 5. The active ingredients of white mustard seed, corydalis, and gansui root were extracted by alcohol extraction method. Asiasarum volatile oil was extracted by oil extractor. The optimized drug loading amount was 11% with initial adhesive force, peeling strength and human sense as the evaluation index. Asthma rats model were established by sensitized with ovalbumin and nose-scratching time as the evalua- tion index. High dose （17%） group of drug-loaded cataplasm had the obvious inhibition effect on nose-scratching time of rats （P = 0. 037 〈0. 05 ）. In comparison, middle dose （ 11% ）, low dose （4%） and positive-control groups had no obvious inhibitive effect on rats. White mustard seed cataplasm supplied a novel choice for anti-asthma therapy. And the overall pharmacodynamics assessment will be carried out on molecular level in near future.