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山柑属植物化学成分及药理活性研究进展 总被引:2,自引:0,他引:2
目的总结山柑属植物的化学成分及药理活性研究进展。方法通过系统文献调研,对山柑属植物的化学成分进行分类归纳,并对该属植物主要的药理活性研究报道进行综述。结果山柑属植物含有多种化学成分,主要有硫苷、生物碱、黄酮类、萜类、有机酸等;该属植物及其化学成分多具有镇痛、消炎、抗凝血、抗肿瘤、降血糖等药理活性。结论山柑属植物的开发利用主要是应用其抗炎、镇痛及抗凝血活性,对其他药理活性的研究利用相对较少;该属植物具有广泛的药理活性,如抗肿瘤、降血糖等,有广泛的应用和开发前景,对该属植物进行系统研究有较大意义。 相似文献
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续报近年来对番荔枝科植物细胞毒成分的研究概况,介绍番荔枝乙酰精宁类化合物细胞毒活性及番荔枝属有关植物的化学成分和药理活性研究进展。 相似文献
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Herbal drugs were screened for their activity in reversing multidrug resistance (MDR) in P-glycoprotein (P-gp) over-expressing cancer cells. Through bio-assay guided fractionation an active compound was isolated from Rhizoma Alismatis, the underground part of Alisma orientale and the chemical structure of the isolate compound was confirmed by HPLC, LC-MS and NMR as Alisol B 23-acetate (ABA). ABA restored the sensitivity of MDR cell lines HepG2-DR and K562-DR to anti-tumor agents that have different modes of action but are all P-gp substrates. It restored the activity of vinblastine, a P-gp substrate, in causing G2/M arrest in MDR cells. In a dose-dependent manner, ABA increased doxorubicin accumulation and slowed down the efflux of rhodamin-123 from MDR cells. ABA inhibited the photoaffinity labeling of P-gp by [125I]iodoarylazidoprazosin and stimulated the ATPase activity of P-gp in a concentration-dependent manner, suggesting that it could be a transporter substrate for P-gp. In addition, ABA was also a partial non-competitive inhibitor of P-gp when verapamil was used as a substrate. Our results suggest that ABA may be a potential MDR reversal agent and could serve as a lead compound in the development of novel drugs. 相似文献
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原人参二醇及其衍生物的化学与抗癌活性研究进展 总被引:1,自引:0,他引:1
大量实验研究表明,原人参二醇具有广泛的生理活性,原人参二醇在抗肿瘤方面作用尤为显著。该文参考国内外大量文献资料,综述了有关原人参二醇化学结构、性质、制备方法及其衍生物的制备和抗癌活性、构效关系的研究进展,以期为开发利用原人参二醇提供有用的参考。 相似文献
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Renata Nowak 《Pharmaceutical biology》2013,51(8):627-630
Kaempferol-3-O-β-D-(6″-E-p-coumaroyl)-glucopyranoside (tiliroside) has been isolated from many natural plants sources. This compound showed very interesting pharmacological activities, e.g., cytotoxic for human leukaemic cell lines and anti-complement activity. However, there is a lack of data concerning the presence of this compound in medical plants. In this work, a reproducible and quick method was elaborated for the separation and determination of tiliroside in methanolic extracts of the plants. Solid-phase extraction was applied as sample preparation technique for the purification of crude extracts from various species as well as for the isolation of tiliroside for further reversed-phase high performance liquid chromatography analysis. The content of tiliroside for various plant materials was compared. 相似文献
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目的综述天然胃黏膜保护药物的研究概况。方法查阅国内外相关文献,以其中的11篇为依据介绍胃黏膜保护剂的活性成分。对不同科属的天然植物所含有的化合物类型进行分类,主要有山茶科、菊科、五加科等。结果研究表明植物的来源广泛,具有不同的化学类别、结构特征和作用机理,主要包括皂苷、甾体、生物碱类等化合物。结论为胃黏膜保护剂的开发与研究提供参考。 相似文献
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目的:研究海南血桐叶子中具有抑菌活性的化学成分,并利用反相高效液相色谱(RP-HPLC)法对其进行含量测定。方法:采用硅胶柱色谱技术对海南血桐叶子中具有明显抑菌活性的乙酸乙酯提取浸膏进行分离纯化,得到抑菌活性化合物,利用现代波谱法结合理化性质对其进行结构鉴定,同时利用RP-HPLC法测定其在叶子中的含量。结果:分离得到的抑菌活性化合物经鉴定为没食子酸乙酯,其在海南血桐叶子中的含量为9.0995mg.g-1。结论:本方法简便、准确,可用于海南血桐叶子的质量控制。 相似文献
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H M El-Fatatry 《Die Pharmazie》1975,30(2):109-111
Refrigeration of the volatile oil of Nigella sativa L. seeds eventuates in a crystalline substance. The chemical structure of the compound was drawn from its chemical behaviour, as well as from its UV, IR, PMR and mass spectral data. The compound was found to be thymohydroquinone: confirmation of the structure was established via the preparation of its corresponding diacetate ester. The compound was found to have high antimicrobial effect against gram positive microorganisms 相似文献
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为贯彻落实中医药法,国家中医药管理局及药品监督管理局先后发布了古代经典名方中药复方制剂开发的相关鼓励性政策,但是研究过程中的一些关键问题尚需进一步探讨。本文结合古代经典名方,尤其是包含有毒药味品种自身的特殊性,总结目前在中药一致性评价领域具有应用潜力的技术手段,包括色谱(高效液相、超高压液相等)指纹图谱技术、光谱分析(紫外光谱、近红外光谱等)技术、生物活性检测等技术手段,探讨从药学等效性和生物等效性(生物效价和毒价)两个角度构建经典名方复方制剂质量及制药过程一致性评价研究思路,实现传统制法与现代制药工艺间的"基本一致",保证经典名方复方制剂与传统汤剂内在质量、疗效及安全性的一致性,为中药经典名方复方制剂的开发提供借鉴与思考。 相似文献