益母草药材生物检定方法的研究（I）—动物标准子宫模型建立和测定环境因素筛选

目的；研究益母草缩宫效应，建立动物标准子宫模型，优选影响益母草缩宫效应的环境因素。方法：通过比较益母草对小鼠、大鼠、家兔离体子宫的缩宫效应，确定益母草药材生物检定的标准子宫模型；运用正交试验，对影响益母草缩宫效应的主要环境因素进行筛选。结果：以动情前期大鼠离体子宫为标准子宫模型，益母草药材生物检定最佳环境条件为：子宫负荷1g，浴液温度32℃，每1000ml子宫蓄养液CaCl2和NaHCO3含量分别为0．06g和0．25g。结论：优选后的条件，益母草缩宫效应明显，检定误差较小。

Study on the biological assay of Herba Leonuri(I)--Establishment of standard uterus models and optimizing uterus environment conditions]

OBJECTIVE: To study the contracting uterus effect of Herba Leonuri, establish the standard uterus models, and optimize the environment conditions which could influence Herba Leonuri actions on uterus. METHODS: By comparing the contracting uterus effect of Herba Leonuri in mice, rats and rabbits, the standard uterus models was established. The optimum extra conditions of uterus were selected by orthogonal design methods. RESULTS: The isolated rat uterus pre-oestrus was selected for the standard uterus, the optimum uterus environment conditions as follows: the pre-burden of uterus was 1.0 g, the temperature of uterus nutrition solution is 32 degrees C, the assay of CaCl2 and NaHCO3 per 1000 ml nutrition solution was respectively 0.06 g and 0.25 g. CONCLUSION: Under the selected conditions, the contracting uterus effect of Herba Leonuri were more obvious and the errors of bioassay were less smaller.