厚朴配方颗粒药效学评价方法初探

Preliminary study on pharmacodynamic evaluation method of Houpo formula particles

以传统水煎剂为参照、以厚朴干预溃疡性结肠炎(UC)大鼠为代表,探讨中药配方颗粒药效学评价方法的可行性。首先应用红外光谱法,明确厚朴传统水煎剂、不同厂家配方颗粒药用成分相似度。采用UC大鼠模型,以水煎剂为参照,给予不同剂量、不同厂家厚朴配方颗粒,观察UC大鼠疾病活动指数(DAI)、结肠黏膜损伤指数(CMDI)及组织病理学变化、血清一氧化氮(NO)、血浆内皮素(ET)、结肠P物质(SP)和血管活性肠肽(VIP)的含量。通过比较其对UC大鼠的干预作用,探讨三九、天江2种厚朴配方颗粒药效学有无差异,来求证厚朴配方颗粒药效学评价方法的可行性。结果显示厚朴配方颗粒与传统水煎剂药效作用相近。不同厂家厚朴配方颗粒对UC大鼠药效学比较,无统计学差异。实验表明以中药复方为基础,通过拆方明确各药物作用靶点,选取传统水煎剂为参照,对相应配方颗粒进行药效学等效性比较,此方法可避开有关配方颗粒单煎与共煎的争议,能够对配方颗粒的药效作用给予客观评价,证实该方法具有可行性。

To discuss the feasibility of the pharmacodynamic evaluation method for traditional Chinese medicine （TCM） formu- la particles, with traditional decoction for reference and the intervention of Magnoliae Officinalis Cortex in rats with ulcerative colitis （UC）. First of all, the similarity of traditional Magnoliae Officinalis Cortex decoction and formula particles of different manufacturers was defined by using the IR fingerprint. The UC rat model was established and given Houpo formula particles of different doses and manufacturers, with the decoction for reference, in order to observe disease activity index （DAI）, colon mucosa damage index （CM- DI）, pathologic changes, nitric oxide （NO）, endothdin（ ET）, substance P, vasoactive intestinal peptide（VIP）. Their intervention effects on UC rats were compared to study the difference between Sanjiu and Tianjiang Houpo formula particles, in order to demonstrate the feasibility of the pharmacodynamic evaluation method for Houpo formula particles. According to the results, Houpo formula particles showed similar pharmacodynamic actions with the traditional decoction. The pharmacodynamic comparison of Houpo formula particles of different manufacturers showed no statistical significance. The experiment showed that on the basis of the TCM compounds, a prescrip- tion dismantlement study was conducted to define target points of various drugs. The traditional decoction was selected for reference in the comparison of corresponding formula particles for their pharmacodynamic equivalence. This method could avoid controversies about single or combined boiling of formula particles, and give objective comments on the pharmacodynamic effect of the formula particles. The method is proved to be feasible.