红芪活性组分抗骨质疏松作用的谱效关系研究

目的研究红芪抗骨质疏松药效与HPLC指纹图谱的相关性。方法建立去卵巢大鼠所致骨质疏松模型,红芪(S1)的不同提取部位ig给药,选择红芪抗骨质疏松活性最强的提取部位。采用HPLC法建立10批不同产地红芪乙醇提取部位指纹图谱,获取相应的药效数据,运用偏最小二乘法,进行相关性分析。将筛选出的活性物质单体作用于成骨细胞,验证其抗骨质疏松活性。结果红芪乙醇提取部位抗骨质疏松药效最强。经过相关性分析,该组分指纹图谱共确定9个共有峰,鉴定出的3种化合物中,腺苷、毛蕊异黄酮与药效呈正相关,芒柄花苷与药效呈负相关。体外验证实验结果表明毛蕊异黄酮可以提高成骨细胞碱性磷酸酶(ALP)活性。结论红芪抗骨质疏松作用是其所含各种成分共同作用的结果,腺苷、毛蕊异黄酮对药效有一定的贡献,且毛蕊异黄酮有促进成骨细胞分化的作用。

Spectrum-effect relationship of active fraction from Hedysarum polybotrys on osteoporosis

Objective To study the correlation of anti-osteoporosis effect of Hedysarum polybotrys and HPLC fingerprint. Methods Osteoporosis model was established through ovary resection of female rats to select the best part after performing ig administration with different extracts of H. polybotrys. The fingerprints of ethanol extract of ten batches of H. polybotrys from different habitats were established by HPLC. The partial least squares regression (PLSR) analysis was used to explore the correlation between peak areas of HPLC fingerprints and efficacy. Moreover, the effects of active ingredient of H. polybotrys on the function of osteoblasts were observed. Results The ethanol extract of H. polybotrys was the most effective part. Nine common peaks of the active fraction were selected. Adenosine, calycosin and ononin in ethanol extract of H. polybotrys have been identified separately, among which adenosine and calycosin were positively correlated with the pharmacodynamic data, and ononin was negatively correlated with the effect of drug. Additionally, calycosin can increase osteoblast ALP activity. Conclusion The results indicate that anti-osteoporosis effect of H. polybotrys is related to various components, among which adenosine and calycosin have a certain contribution to this effect, and calycosin can also stimulate the differentiation of osteoblasts in vitro.