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连翘不同部位化学成分研究进展 总被引:1,自引:0,他引:1
目的探讨连翘(Forsythia suspensa)不同部位化学成分研究进展。方法通过对近年来发表的有关连翘化学成分的文献进行归纳总结。结果连翘果实中所含化合物主要有木脂素类、挥发油和萜类、苯乙醇苷类、黄酮类、生物碱类、有机酸类等;花中主要含挥发油类成分,其组成与连翘果实中挥发性成分接近,但活性成分含量较低;叶的化学成分与果实中所含成分具有一定的相似性,部分活性成分的含量甚至高于其在果实中的含量,但种类较少;籽为连翘果实中挥发油的主要来源,其化学成分组成与果实中挥发性成分基本一致。结论连翘果实、叶、花、籽均含不同化学成分且活性成分不同,为寻找新的药源及连翘的综合开发利用提供了新思路。 相似文献
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In search of new biologically active compounds in nature, we have been investigating naturally occurring substances on the following subjects: I. chemical studies on naturally occurring drug materials [a) elucidation of bioactive constituents in natural drugs, b) elucidation of scientific basis for crude drug processing, and c) investigation of bioactive constituents in food materials], II. exploitation of new pharmaceuticals in nature [a) investigation of marine natural products and b) exploitation of Indonesian medicinal plants], and III. synthetic studies on bioactive natural products [a) chemical modification of naturally abundant carbohydrates and terpenoids and b) synthetic studies of complex lipids]. This article reviews the results obtained in our laboratory since 1978 on the subjects of I-a, b, c, II-a, and III-a. 相似文献
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Ho JW Cheung MW Yu VW 《Cardiovascular & hematological agents in medicinal chemistry》2012,10(3):251-255
Naturally occurring plant alkaloids, in particular those identified from herbal medicines, are finding therapeutic use. Heart diseases can be well managed with specific formulations of herbal medicines. The combined action of multiple constituents of herbal medicines works with therapeutic benefits in humans. The established formulations of Traditional Chinese medicines show efficacy in treatment of diseases. However, individual herbal principles seldom show pharmacological activity. Nevertheless, some of the active alkaloids and terpenoids from medicinal herbs have been identified. The pharmacological activities of these herbal compounds have been studied. These active constituents of herbal medicine are also used in nutrient supplements, but the modes of action of the active component remain sketchy. The present review describes the recent development of those active principles from herbal medicines as cardiovascular agents. The study will provide insights into herbal medicines for drug development for the treatment of cardiovascular disease. 相似文献
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Thermal decomposition and elemental content of commercial raw plant materials used in medicine-roots, rhizomes and bark originating from different medicinal plant species were analyzed. The thermal decomposition was performed using the derivatograph. The content of non-metallic (N, P, S, Cl, I and B) and metallic (Ca, Mg, Fe, Mn, Cu and Zn) elements was determined by spectrophotometric techniques after previous mineralization of samples. In order to obtain more clear classification of the analyzed plant materials principal component analysis (PCA) was applied. Interpretation of PCA results for three databases (thermoanalytical, non-metals and metals data sets) allows the statement that samples of roots, rhizomes and bark from the same plant species in majority of cases are characterized by similar elemental composition and similar course of their thermal decomposition. In this way the differences in general chemical composition of medicinal plants raw materials can be determined. 相似文献
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当归是中国常用的药食同源药材之一,素有“十方九归”的美称。当归挥发油是当归的主要药效成分,主要由苯酞类、萜烯类及烷烃类等多种化合物组成,其化学成分复杂,且当归的生长环境、炮制工艺、提取方法等因素均会引起当归挥发油成分含量的变化。当归挥发油具有降血压、保护缺血再灌注损伤部位、平喘、抗炎及抗肿瘤等多种药理活性,临床应用价值较高。本文通过查阅近十年来国内外有关文献,对当归挥发油的化学成分进行梳理,汇总了影响当归挥发油化学成分的诸多因素,重点综述了其降血压、保护缺血再灌注损伤部位、平喘等多种活性作用,以期为当归挥发油的进一步开发利用提供参考。 相似文献
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Xie B Gong T Tang M Mi D Zhang X Liu J Zhang Z 《Journal of pharmaceutical and biomedical analysis》2008,48(4):1261-1266
Similarity analysis based on fingerprints has been commonly used in quality consistency evaluation of herbal medicines. However, very little efforts have been paid in interpreting of the differences in the fingerprints for the purpose of quality control. In this study, a facile and reproducible HPLC-fingerprint of Liuwei Dihuang Pills (LWPs) was developed. Both similarity analysis and Principal Component Analysis (PCA) were employed to evaluate quality consistencies of LWPs produced by five manufacturers. Contribution plots generated by PCA were performed to interpret differences in the chromatograms of samples from different groups and some peaks which importantly contribute to classification were separated and identified. Then, differences in these samples were verified by quantitative analysis and the way to improve quality consistency was discussed. TCM was usually complex in chemical constituents, it is difficult to identify and quantify all of them. Our study demonstrated that the combination of fingerprints of TCM and PCA not only offered a powerful way to quality consistency evaluation of TCM preparations, but also might simplify the process of quality control by quantitation of some important constituents. 相似文献
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Over the past six years, both government institutions and private enterprise have expressed great interest and activity in the isolation of chemical constituents from the Cannabis sativa plant and synthesis of novel cannabinoid compounds with potential medicinal uses. Evaluation of the safety and antiemetic efficacy of delta-9-tetrahydrocannabinol, the primary psychoactive cannabinoid component of marijuana, comprises one of several very active areas of cannabinoid clinical research. The results of clinical studies of the safety and antiemetic efficacy of delta-9-tetrahydrocannabinol in patients receiving cancer chemotherapy are critically evaluated. Deficiencies in current knowledge of the clinical pharmacology of delta-9-tetrahydrocannabinol are discussed in the context of antiemetic drug evaluation. 相似文献
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荚蒾属植物化学成分种类丰富,以vibsane型二萜、环烯醚萜等萜类成分为主,还有黄酮、木脂素、酚类和植物甾醇等成分,药用价值很高,有较大的开发潜力。本文通过查阅和分析相关文献,对荚蒾属植物的化学成分进行全面整理,旨在为该属植物的进一步研究和开发利用提供参考。 相似文献
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The cannabinoid content of Cannabis sativa L grown in England 总被引:2,自引:0,他引:2
Twelve varieties of Cannabis sativa were grown out-of-doors in southern England during 1971 to 1973. Results show that for certain varieties highly active herbal cannabis can be produced. A warm climate with abundant sunshine does not therefore seem to be essential for high THC content. This was supported by results of growing plants in a greenhouse in varying lighting conditions including a limited period in total darkness. Considerable within and between plant variation was found and the importance of defining the plant part used, the stage of growth and the size of the sample is emphasized for comparative work involving quantitative results. Comparison of the present results with those for the same cannabis varieties grown in different parts of the world shows that all exhibit the same qualitative picture, that is, either THC-rich or CBD-rich. Since this chemical composition seems independent of environmental conditions it is inappropriate to refer to the two types as phenotypes; it is more likely that they represent two chemical races within the species Cannabis sativa L. 相似文献
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Saeidnia S Gohari A Mokhber-Dezfuli N Kiuchi F 《Daru : journal of Faculty of Pharmacy, Tehran University of Medical Sciences》2011,19(3):173-186
Achillea L. (Compositae or Asteraceae) is a widely distributed medicinal plant throughout the world and has been used since ancient time. Popular indications of the several species of this genus include treatment of wounds, bleedings, headache, inflammation, pains, spasmodic diseases, flatulence and dyspepsia. Phytochemical investigations of Achillea species have revealed that many components from this genus are highly bioactive. There are many reports on the mentioned folk and traditional effects. Although, the medicinal properties of Achillea plants are recognized worldwide, there are only one review article mainly about the structures of the phytochemical constituents of Achillea. The present paper reviews the medicinal properties of various species of Achillea, which have been examined on the basis of the scientific in vitro, in vivo or clinical evaluations. Various effects of these plants may be due to the presence of a broad range of secondary active metabolites such as flavonoids, phenolic acids, coumarins, terpenoids (monoterpenes, sesquiterpenes, diterpenes, triterpenes) and sterols which have been frequently reported from Achillea species. 相似文献
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目的对荨麻属植物的化学成分和药理作用进行阐述,为该属植物的进一步研究与发展奠定基础。方法结合近年来的30余篇相关文献,对近5年来从荨麻属植物中分离得到的化学成分和药理活性进行综述。结果与结论近5年从荨麻属植物中新发现多种化合物,如黄酮、木脂素、萜、有机酸等,对该属植物的降糖、抗前列腺增生、镇痛抗风湿作用也有进一步研究。 相似文献
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50 years of medicinal plant research - every progress in methodology is a progress in science 总被引:3,自引:0,他引:3
Phillipson JD 《Planta medica》2003,69(6):491-495
Many scientific methods of analysis have been developed for the investigation of the constituents and biological activities of medicinal plants during the 50 years since the inaugural meeting of the Gesellschaft für Arzneipflanzenforschung (GA). The chromatographic (e. g., TLC, GLC, HPLC), spectroscopic (e. g., UV, IR, 1H- and 13C-NMR, MS), and biological (e. g., anticancer, anti-inflammatory, immunostimulant, antiprotozoal, CNS) techniques utilized for medicinal plant research are briefly reviewed. The contribution that advances in scientific methodology have made to our understanding of the actions of some herbal medicines (e. g., Echinacea, Ginkgo, St John's wort, Cannabis), as well as to ethnopharmacology and biotechnology, are briefly summarized. Plants have provided many medicinal drugs in the past and remain as a potential source of novel therapeutic agents. Despite all of the powerful analytical techniques available, the majority of plant species has not been investigated chemically or biologically in any great detail and even well known medicinal plants require further clinical study. 相似文献
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荨麻属植物的化学成分和药理作用研究进展 总被引:2,自引:0,他引:2
荨麻属植物是常用草药,含有黄酮、萜、木脂素、脂类、有机酸、挥发油、蛋白质、微量元素等类型化合物。它具有广泛的药理作用,如抑制良性前列腺增生(BPH)、降血糖、免疫调节作用、降血压、降血脂、抗凝血、抑制炎症反应等。现对荨麻属植物的化学成分和药理作用研究进展进行综述。 相似文献
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蓝盆花属植物隶属于川续断科(Dipsacaceae),全世界约100种,分布于欧洲、亚洲、非洲南部和西部,中国有9种2变种,产东北、华北、西北及台湾等地。植物化学研究发现其主要成分为黄酮类、酚酸类、萜类和香豆素类等;现代药理研究表明其具有抗肝纤维化、抗氧化、抗肿瘤和抗菌等多种药理活性。蓝盆花属植物大多数在国内外广泛作为民族传统用药,潜在药用价值较大。本研究综述了国内外蓝盆花属植物的化学成分及药理作用研究进展,以期为该属植物的进一步研究与开发利用提供科学依据和参考。 相似文献
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Di Marzo V 《Trends in pharmacological sciences》2006,27(3):134-140
British scientists have played a leading role in the long history of cannabinoid and endocannabinoid research. Such research has progressed from the first crucial evaluation of the medicinal properties of Cannabis sativa in the Western world to pioneering studies of the chemical constituents of this plant, the development of in vitro biological assays to study cannabinoids, the identification of the mechanism of action of cannabinoids, the discovery of endocannabinoids and the assessment of their therapeutic implications. Stemming from the many innovative ideas and achievements of these researchers, I provide a personal view of where these studies have led us thus far and where they are likely to take us in the future. 相似文献
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Natural medicinal products have been used for millennia for the treatment of several ailments. Although many have been superseded by conventional pharmaceutical approaches, there is currently a resurgence in the interest in natural products by the general public and the use of complementary and alternative medicine is increasing rapidly in developed countries. Also, pharmaceutical industries are more and more interested in examining their potential as sources of novel medicinal compounds which may act as growth factor or show immunomodulatory or anti-microbial activity. The subgroup of natural bioactive compounds that bridge the gap between food products and drugs are termed nutraceuticals or functional foods. In contrast with most standard medicinal compounds, nutraceuticals are generally used to prevent rather than to treat disease. Many of the claims for such products are supported by very limited scientific evidence. However, there has recently been a great interest at evaluating the mechanism by which natural products exert their beneficial effects in the gastrointestinal tract. In particular, a major area of interest is for the use of biologically active chemical components of plants, i.e. phytochemicals, in a number of gastrointestinal disorders. While the major focus of phytochemical research has been on cancer prevention, several products of plant origin are being used and/or under study for a variety of other gastrointestinal problems. In this review we discuss the scientific evidence supporting the potential use of nutraceuticals as agents capable to prevent or accelerate healing of gastrointestinal mucosal damage, with a focus on polyphenol extracts obtained from apple. 相似文献