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侧柏叶Biota orientalis(L.)Endl.系柏科植物侧柏的干燥枝叶,为中医常用止血药。在我们筛选的中草药中侧柏叶的小鼠出血时间最短效果显著,而其止血成分尚未见报道。以小鼠剪尾法为生物指标从侧柏叶热水提取部分分得止血有效部分——黄酮醇甙和鞣质的混合物,小鼠出血时间比对照组缩短62.1%。该黄酮醇甙紫外光谱特征与芦丁很相似,经鉴定为檞皮甙,鞣质为缩合型鞣质。据文献报道檞皮甙有良好的抗毛细血管脆性和止血作用,鞣质又有收缩微血管和促凝血的作用自古以来用于止血。因此
Biota orientalis (L.) Endl. is a dry branch of Platycladus orientalis, commonly used as a hemostatic agent in traditional Chinese medicine. The shortest effect of bleeding time was evident in the Chinese herbs of Platycladus orientalis that we screened, and its hemostatic component has not been reported. The mouse tail-cutting method was used as a biomarker to extract the mixture of flavonol glycosides and tannins from the hot water extract of the Orientalis arborvitae leaves. The bleeding time of the mice was 62.1% shorter than that of the control group. The characteristics of this flavonol oxime ultraviolet spectrum is very similar to that of rutin. It was identified as ecdysteroids, and tannins were condensed tannins. According to the literature, ecdysteroids have good anti-capillary fragility and hemostasis, and enamel has the effect of contracting microvessels and procoagulant since ancient times. therefore