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环烯醚萜类化合物是广泛存在于双子叶植物中的一类化合物,具有广泛的生物活性,如神经保护、抗肿瘤、抗氧化、抗炎等作用。文章对药用植物环烯醚萜类化合物生物合成途径及三个可能的关键酶基因的研究进展进行综述,以期为进一步解析环烯醚萜生物合成途径以及挖掘功能基因奠定基础。 相似文献
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环烯醚萜类化合物是玄参主要活性成分之一,根据化学结构将其分为环烯醚萜苷和非苷环烯醚萜两大类。并以环烯醚萜苷类化合物的生物合成过程为基础,推测脱羧环烯醚萜苷途径为玄参中环烯醚萜苷类主要生物合成途径。相关研究表明,哈巴苷、哈巴俄苷和桃叶珊瑚苷等成分在抗脑缺血、降血糖、保护心肌细胞等方面发挥重要作用,但仍有大部分环烯醚萜类成分的药理作用并不明晰。通过对玄参中环烯醚萜类化学成分的种类、生物合成技术以及药理作用的相关文献进行综述,为玄参环烯醚萜类化合物的开发应用提供参考。 相似文献
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赵宇新 《国际中医中药杂志》2004,(1)
Saprosma scortechinii为茜草科染木树属植物,在马来西亚传统医学中,其根用于治疗发热,嫩叶可以作为蔬菜。曾从该植物中分离得到6个含硫双环烯醚萜苷saprosmoside A-F和13个环烯醚萜苷。本次又从中分离得到13个化合物,其中包括2个新的双环烯醚萜苷、1个新的环烯醚萜苷、7个新的蒽醌和3个已知化合物。 相似文献
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赵宇新 《国际中医中药杂志》2004,26(1):54-54
sSaprosma scortechinii为茜草科染木树属植物,在马来西亚传统医学中,其根用于治疗发热,嫩叶可以作为蔬菜。曾从该植物中分离得到6个含硫双环烯醚萜苷saprosmoside A~F和13个环烯醚萜苷。本次又从中分离得到13个化合物,其中包括2个新的双环烯醚萜苷、1个新的环烯醚萜苷、7个新的蒽醌和3个已知化合物。 相似文献
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植物环烯醚萜类化合物生物活性研究进展 总被引:3,自引:2,他引:1
环烯醚萜类化合物是一类重要的植物次生代谢产物,具有广泛的生物活性,作者对此类化合物的分布、生物活性进行综述。总结了环烯醚萜类化合物在糖尿病治疗、保肝、抗炎、抗菌、抗肿瘤等方面的应用,为相关药用植物的开发及该类化合物在医药领域上的进一步应用提供参考。 相似文献
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獐牙菜属植物中环烯醚萜类成分及其药理作用研究进展 总被引:3,自引:1,他引:3
獐牙菜属是龙胆科的大属,主要分布在亚洲、非洲和北美洲;我国有79种,主要集中在西南山岳地区.该属植物主要含有环烯醚萜类、劬酮类、三萜类、黄酮类等成分,其中环烯醚萜类为具有环戊二烯并吡喃环基本骨架的单萜类化合物,其结构多样,是獐牙菜属的特征性成分,具有多种生物活性及较大的药用价值.通过阐述环烯醚萜类成分生物合成途径,对獐牙菜属环烯醚萜类化学成分进行综述及分类,并分析其化学分类学意义,最后对该属该类成分的药理作用进行总结. 相似文献
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In this study, ethanol, methanol, ethyl acetate and water extracts of Rubia tinctorum L. (Rubiaceae) were tested for antimicrobial activity by the disc diffusion method. From the present study it was found that Rubia tinctorum L. revealed antimicrobial activity against some Gram (+) and Gram (-) bacteria, yeasts, filamentous fungi and actinomycetes. 相似文献
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Y Adjibadé H Saad B Kuballa J P Beck T Sévenet P Cabalion R Anton 《Journal of ethnopharmacology》1990,29(2):127-136
New groups of polyindolenine alkaloids have been isolated from new species of the tribe Psychotriae (Rubiaceae). The cyto-inhibitory effects of these compounds on tumoral cell lines have been thoroughly investigated and thus allow the statement of relationships between some original structural patterns and the observed biological effects. 相似文献
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Traore-Keita F Gasquet M Di Giorgio C Ollivier E Delmas F Keita A Doumbo O Balansard G Timon-David P 《Phytotherapy research : PTR》2000,14(1):45-47
Mitragyna inermis (De Willd.) O. Kuntze Rubiaceae, Nauclea latifolia (Sm.) Rubiaceae, Glinus oppositofolius (Linn) Molluginaceae and Trichilia roka (Forsk.) Chiv. Meliaceae were investigated for their in vitro antimalarial activity. Leaves, roots and stem barks were submitted to aqueous, hydromethano and chloroform extractions and antimalarial activity was evaluated by microscopic and flow cytometric analysis. The results present evidence that the alkaloids contained in chloroform extracts and ursolic acid, purified from the hydromethanol extract of M. inermis induced a significant decrease of parasite proliferation. However, aqueous extracts, traditionally used for medication did not show high antimalarial activity. Statistical comparison between microscopic and cytometric analysis demonstrated the validity of this new technique for the screening of active antimalarial compounds isolated from plants. 相似文献
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Antitubercular constituents from the hexane fraction of Morinda citrifolia Linn. (Rubiaceae) 总被引:2,自引:0,他引:2
A crude ethanol extract and hexane fraction from Morinda citrifolia Linn. (Rubiaceae) show antitubercular activity. The major constituents of the hexane fraction are E-phytol, cycloartenol, stigmasterol, beta-sitosterol, campesta-5,7,22-trien-3beta-ol and the ketosteroids stigmasta-4-en-3-one and stigmasta-4-22-dien-3-one. E-Phytol, a mixture of the two ketosteroids, and the epidioxysterol derived from campesta-5,7,22-trien-3beta-ol all show pronounced antitubercular activity. 相似文献
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Some South African Rubiaceae Tree Leaf Extracts Have Antimycobacterial Activity Against Pathogenic and Non‐pathogenic Mycobacterium Species
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Abimbola O. Aro Jean P. Dzoyem Tiny M. Hlokwe Evelyn Madoroba Jacobus N. Eloff Lyndy J. McGaw 《Phytotherapy research : PTR》2015,29(7):1004-1010
Tuberculosis (TB) caused by Mycobacterium tuberculosis remains an ongoing threat to human health. Many plant species contain antimycobacterial compounds, which may serve as template molecules for new anti‐TB drugs. The Rubiaceae family is the largest family of trees in southern Africa, and preliminary evidence revealed antimycobacterial activity in several species of the genus, motivating further studies. Leaf extracts of 15 tree species from the Rubiaceae family were screened for antimycobacterial activity against pathogenic M. tuberculosis and non‐pathogenic Mycobacterium smegmatis, Mycobacterium aurum and Mycobacterium bovis BCG (Bacillus Calmette‐Guérin) using a twofold serial microdilution assay. Cytotoxicity was determined using a tetrazolium‐based colorimetric assay against C3A liver cells and Vero kidney cells. Minimum inhibitory concentration values as low as 0.04 mg/mL against M. smegmatis and M. tuberculosis were recorded. Activity against M. aurum was the best predictor of activity against pathogenic M. tuberculosis (correlation coefficient = 0.9). Bioautography indicated at least 40 different antimycobacterial compounds in the extracts. Cytotoxicity of the extracts varied, and Oxyanthus speciosus had the most promising selectivity index values. Copyright © 2015 John Wiley & Sons, Ltd. 相似文献
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蛇根草属(Ophiorrhiza L.)植物隶属于茜草科,在全世界广泛分布。该属植物被多种药物志记载,具有活血化瘀、祛痰止咳等药用价值。该属植物富含结构新颖、生物活性显著的化学成分,已成为国际上药用植物资源的研究热点之一。目前,已有31种蛇根草属植物的化学成分被报道,主要包括62个生物碱类、21个萜类、21个蒽醌类、6个甾体类、2个黄酮类和1个香豆素类等多种结构类型化合物。这些化合物具有抗肿瘤、免疫抑制、抗菌、抗病毒、抗炎、止泻、胃黏膜保护和驱虫等多种药理功效。本文综述了1976年7月至2021年7月间报道的蛇根草属植物的化学成分及其药理活性研究进展,重点突出若干代表性化学成分,同时对其结构特征和绝对构型进行详细的归纳总结,以期为该领域药用植物资源的后续研究与开发提供一定的参考。 相似文献
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长尾粗叶木根化学成分的研究Ⅰ 总被引:5,自引:1,他引:5
目的:研究茜草科粗叶木属植物长尾粗叶木Lasianthus acuminatissimus根中的化学成分。方法:利用正相、反相(RP-18)硅胶柱色谱、大孔树脂柱色谱和制备高效液相色谱分离,通过现代波谱技术(13C-NMR,1H-NMR,DEPT,EI-MS)鉴定结构。结果:分离鉴定了6个化合物,分别为:异东莨菪素(isoscopletinⅠ),异东莨菪素6-O-β-D-葡萄糖苷(isoscopletin-6-O-β-D-glucopyranosideⅡ),mudanoside-A的β构型体(Ⅲ),车叶草苷(asperulosideⅣ),(-)-pinoresinol 4-O-β-D-glucopyranoside(Ⅴ),胡萝卜苷(Ⅵ)。结论:这些化合物均是首次从粗叶木属植物中得到。 相似文献
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Advances in chemistry and bioactivity of the genus Uncaria 总被引:2,自引:0,他引:2
Laus G 《Phytotherapy research : PTR》2004,18(4):259-274
The alkaloids of the pantropical genus Uncaria (Rubiaceae) were reviewed extensively by Phillipson et al. in (1978) Since then a host of papers with new results has been published. The compounds discovered are from three major groups: (1) alkaloids; (2) terpenoids; and (3) flavonoids. Some highly unusual structures have been reported. Although there are at least 35 species of Uncaria known, recent research focussed on a relatively small number of species. During recent years bioactivity of extracts and pure compounds isolated from Uncaria species have been increasingly investigated. These include anticonvulsive, antiinflammatory, antimutagenic, antioxidant, cytoprotective, hypotensive, and immunoregulatory effects. The literature since 1978 is reviewed and 133 references are given. 相似文献
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V Jannic F Guéritte O Laprévote L Serani M T Martin T Sévenet P Potier 《Journal of natural products》1999,62(6):838-843
The chemical study of two Rubiaceae from New Caledonia, Psychotria lyciiflora and Psychotria oleoides, led to the isolation of several pyrrolidinoindoline alkaloids. Two dimers, the known meso-chimonanthine (9) and the new Nb-desmethyl-meso-chimonanthine (5), and a known trimer, hodgkinsine (1), have been isolated from P. lyciiflora. Hodgkinsine (1), quadrigemine C (2), isopsychotridine B (3), psychotridine (4), and three new alkaloids, quadrigemine I (6), oleoidine (7), and caledonine (8), have been isolated from P. oleoides. Structural assignments of the compounds were based on mass spectra analysis and 2D NMR experiments. A tentative stereochemical determination is made from 2D NMR experiments, circular dichroism study and chemical correlations. Some of these compounds are functional antagonists of somatostatine (SRIH). 相似文献