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1.
大血藤来源于木通科植物大血藤Sargentodoxa cuneata的干燥藤茎。该研究通过HPD-100 大孔树脂、反复硅胶柱色谱、Sephadex LH-20 和制备液相等方法,从采自安徽黄山的大血藤藤茎中分离出20个化合物;根据化合物的理化性质和波谱数据,分别鉴定为(7R,8S)-3,3'-5-三甲氧基-4,9-二羟基-4',7-环氧-5',8-木脂素-7'-烯-9'-酸 4-O-β-D-吡喃葡萄糖苷(1),1-O-香草酸-6-O-香草酰基吡喃葡萄糖苷(2),对羟基苯乙醇-6-O-香豆酰吡喃葡萄糖苷(3),枸橼苦素B(4),桂皮苷(5),(-)-异落叶松脂素4'-O-β-D-吡喃葡萄糖苷(6),(-)-异落叶松脂素4-O-β-D-吡喃葡萄糖苷(7),1-O-香草酸-6-(3",5"-二甲氧基-没食子酰)-β-D-吡喃葡萄糖苷(8),对羟基苯乙醇-6-O-(E)-咖啡酰吡喃葡萄糖苷(9),(-)-丁香树脂醇4'-O-β-D-吡喃葡萄糖苷(10),(-)-丁香树脂醇双葡萄糖苷(11),野菰苷(12),木通苯乙醇苷B(13),4-羟基-3-甲氧基苯乙酮-4-O-α-L-鼠李糖-(1→6)-β-D-吡喃葡萄糖苷(14),4-羟基-3-甲氧基苯乙酮-4-O-β-D-芹糖-(1→6)-β-D-吡喃葡萄糖苷(15),(-)-表儿茶素(16),毛柳苷(17),3,4-二羟基苯乙醇吡喃葡萄糖苷(18),绿原酸(19),原儿茶酸(20),其中化合物1为新化合物,化合物2~7首次从该植物中分离得到。 相似文献
2.
为综合利用白木香叶的丰富资源,阐明其物质基础,课题组再次对其化学成分进行了研究,采用多种色谱技术对其化学成分进行分离纯化,从白木香叶95%,70%乙醇提取物的氯仿和正丁醇萃取部位共分离得到12个化合物.经多种波谱方法鉴定其结构,分别为鸢尾酚酮2-(O-α-L)-吡喃鼠李糖苷(3),4'-羟基-5-甲氧基黄酮-7-O-葡萄糖(6-1)木糖苷(2),7,3',5'-三甲氧基黄酮苷(3),5-甲氧基芹菜素7-(O-β-D)-葡萄糖苷(4),2-苯乙基1-O-β-D-吡喃葡萄糖苷(5),红景天苷(6),苯甲醇1-O-β-D-吡喃葡萄糖苷(7),2,6-二甲氧基-4-羟基苯酚-1-O-β-D-吡喃葡萄糖苷(8),vanilloloside(9),(+)-丁香脂素(10),β-维生素E(11),豆甾-5-烯-3β,7α-二醇(12),化合物 2,3,5~9,11和12 为首次从该属植物中分离得到.另外,对氯仿萃取部位的9个流分进行了4种人体肿瘤细胞毒活性筛选,均未显示明显活性. 相似文献
3.
双花千里光中一个新的艾里莫芬烷型倍半萜 总被引:1,自引:1,他引:0
利用多种色谱技术对藏药双花千里光Senecio dianthus地上部分95%乙醇浸提物进行分离纯化,共得到5个化合物,根据理化数据和波谱数据鉴定化合物的结构分别为:艾里莫芬-9(10),7(11)-二烯-8-酮-12-羧酸-β-D-吡喃葡萄糖苷,命名为双花千里光苷A(1),5,7,4'-三羟基-黄酮-3-O-β-D-葡萄糖苷(2),槲皮素-3-O-β-D-葡萄糖苷(3),金丝桃苷(4),芦丁(5).其中,化合物1为新化合物,化合物2,4,5 均为首次从双花千里光中分离得到. 相似文献
4.
利用常规柱色谱及半制备高效液相色谱等手段相结合对鸭跖草化学成分进行分离纯化,从鸭跖草中分离得到15个化合物,根据其NMR和MS等光谱数据以及理化性质鉴定化合物结构,所分化合物分别鉴定为柯伊利素-7-O-β-D-葡萄糖苷(1),没食子酸甲酯(2),对香豆酸(3),原儿茶酸(4),咖啡酸(5),对羟基苯甲酸(6),2-苯乙基-β-D-葡萄糖苷(7),土大黄苷(8),(7S,8R)-dihydrodehydrodiconiferyl alcohol-9-O-β-D-glucoside(9),异牡荆素(10),芹菜素-6-C-α-L-鼠李糖苷(11),isorhamnetin-3-O-β-D-glucoside(12),槲皮素-3-O-α-L-鼠李糖苷(13),异槲皮素(14),1,2-dihydro-6,8-dimethoxy-7-1-(3,5-dimethoxy-4-hydroxyphenyl)-N1,N2-bis-[2-(4-hydroxyphenyl)ethyl]-2,3-naphthalene dicarboxamide(15).化合物 2,5-9,11,13 等8个化合物为首次从鸭跖草属中分离得到. 相似文献
5.
藏飞廉中酚酸类成分研究 总被引:3,自引:2,他引:1
通过大孔吸附树脂,MCI 树脂,正相硅胶,Sephadex LH-20,ODS和反相HPLC 等多种色谱分离方法相结合,从藏飞廉乙醇提取物中分离得到14个化合物;利用多种谱学技术鉴定它们的结构分别为红景天苷(1),2-(3,4-二羟苯基)-乙基-O-β-D-吡喃葡萄糖苷(2),3,5-二羟苯基-乙醇-3-O-β-D-吡喃葡萄糖苷(3),对羟基桂皮酸(4),3-hydroxy-1-(4-hydroxy-3-methoxyphenyl) propan-1-one(5),3-hydroxy-1-(4-hydroxy-3,5-dimethoxyphenyl) propan-1-one(6),紫丁香苷(7),对羟基苯甲醛(8),水杨酸(9),tachioside(10),香草酸-4-O-β-D-吡喃葡萄糖苷(11),丁香醛(12),2, 6-二甲氧基-4-羟基苯酚-1-O-β-D-吡喃葡萄糖苷(13),2, 6-二甲氧基-对苯二酚-4-O-β-D-吡喃葡萄糖苷(14)。除化合物4和7外,其余均为首次从飞廉属植物中分离得到。 相似文献
6.
黄芩茎叶化学成分研究 总被引:1,自引:0,他引:1
马俊利 《中国实验方剂学杂志》2013,19(7):147-149
目的: 研究黄芩茎叶的化学成分。 方法: 采用反复硅胶柱色谱法、Sephadex LH-20柱色谱法等进行分离纯化,并通过理化常数测定和波谱数据分析鉴定其化学结构。 结果: 从黄芩茎叶中分离鉴定了11个化合物,分别为分别鉴定为:白杨素(1),5,7,4'-三羟基-6-甲氧基黄酮(2),汉黄芩素(3),5,4'-二羟基-6,7,3',5'-四甲氧基黄酮(4),芹菜素(5),异高山黄芩素(6),黄芩素-7-O-β-D-吡喃葡萄糖苷(7),黄芩苷(8),芹菜素 7-O-β-D-吡喃葡萄糖苷(9),白杨素7-O-β-D-吡喃葡萄糖醛酸苷(10),千层纸素A-7-O-β-D-吡喃葡萄糖苷(11)。 结论: 化合物2,4,6首次从该植物分离得到,化合物9,11首次从黄芩茎叶分离得到。 相似文献
7.
8.
采用大孔吸附树脂、聚酰胺柱、正相硅胶柱、Sephadex LH-20柱色谱以及制备高效液相色谱等分离纯化方法,从翠云草75%乙醇提取物中分离得到9个化合物,根据化合物的理化性质和光谱方法鉴定其结构分别为:滨蓟黄苷(1)、印度荆芥苷(2)、芹菜素-6-C-α-L-吡喃阿拉伯糖-8-C-β-D-吡喃葡萄糖苷(3)、芹菜素-6-C-β-D-吡喃葡萄糖-8-C-α-L-吡喃阿拉伯糖苷(4)、芹菜素-7-O-β-D-吡喃葡萄糖苷(5)、2,3-二氢穗花杉双黄酮(6)、4'-甲氧基穗花杉双黄酮(7)、2,3-二氢-4'-甲氧基穗花杉双黄酮(8),2,3,2",3"-四氢-4'-甲氧基罗波斯塔双黄酮(9),化合物 1~5 为黄酮苷类化合物,并且均为首次从卷柏属植物中分离得到,化合物7为首次从翠云草中分离得到。 相似文献
9.
华北蓝盆花化学成分研究 总被引:1,自引:0,他引:1
从华北蓝盆花Scabiosa tschilliensis的干燥花序中分离得到22个化合物,通过波谱分析,化合物结构分别鉴定为正二十八烷醇(1),正十八烷酸(2),β-谷甾醇(3),齐墩果酸(4),芹菜素(5),木犀草素(6),胡萝卜苷(7),山柰酚-3-O-β-D-6-O-(对羟基桂皮酰基)-吡喃葡萄糖苷(8),山柰酚-3-O-β-D-3,6-二-O-(对羟基桂皮酰)-葡萄糖苷(9),芹菜素-7-O-β-D-吡喃葡萄糖苷(10),木犀草素-4'-O-β-D-吡喃葡萄糖苷(11),芹菜素-7-O-芦丁糖苷(12),木犀草素-7-O-β-D-葡萄糖苷(13), 芹菜素-4'-O-β-D-葡萄糖苷(14),咖啡酸甲酯(15),马钱素(16),腺苷(17),木犀草素-6-C-β-D-吡喃葡萄糖苷(18),獐牙菜苷(19), sylvestrosides Ⅰ(20),sylvestrosides Ⅱ(21),urceolide(22)。其中化合物 1,2,7~9,12,15,17,18,20~22 为首次从该属中分离得到,化合物 1~4,6~9,11,12,15~22 为首次从该植物中分离得到。此外,首次报道了化合物 22 的13C-NMR数据。 相似文献
10.
采用硅胶柱色谱、凝胶柱色谱和制备HPLC色谱分离方法分离纯化大株红景天中的化学成分,采用有机波谱方法鉴定化合物结构,并以Transwell 趋化实验方法测定化合物抗肿瘤转移作用.从大株红景天乙醇提取物中分离得到10个化合物,分别为丁香酸(1),红景天苷(2),酪醇(3),scaphopetalone(4),berchemol(5),2,6-二甲氧基苯乙酮-4-O-β-D-吡喃葡萄糖苷(6),柴胡红景天氰苷素A(7),对苯乙烯基-O-β-D-木糖基-(1→6)-O-β-D-吡喃葡萄糖苷(8),对苯乙烯基-4-O-β-D-呋喃芹菜糖基-(1→6)-O-β-D-吡喃葡萄糖苷(9),丁子香基-4-O-β-呋喃芹菜糖基-(1→6)-O-β-吡喃葡萄糖苷(10).化合物 4~6和8~10 均为首次从本属植物中分离得到,化合物7为首次从大株红景天中分离得到.抗肿瘤转移实验结果表明化合物 2, 6~8 均有明确的抗肿瘤转移活性, 其中化合物 2 和 8 的抗肿瘤转移活性较强. 相似文献
11.
Ivan L. Lawag Alicia M. Aguinaldo Suad Naheed Mohammad Mosihuzzaman 《Journal of ethnopharmacology》2012
Ethnopharmacological relevance
Antidesma bunius Spreng. (Phyllantaceae), Averrhoa bilimbi L. (Oxalidaceae), Biophytum sensitivum (L.) DC. (Oxalidaceae), Ceriops tagal (Perr.) C.B. Rob. (Rhizophoraceae), Kyllinga monocephala Rottb. (Cyperaceae), and Rhizophora mucronata Lam. (Rhizophoraceae) are used as remedies to control diabetes. In the present study, these plants were screened for their potential α-glucosidase inhibitory activity.Materials and methods
The 80% aqueous ethanolic extracts were screened for their α-glucosidase enzyme inhibitory activity using yeast alpha glucosidase enzyme.Results
Except for A. bilimbi with IC50 at 519.86±3.07, all manifested a significant enzyme inhibitory activity. R. mucronata manifested the highest activity with IC50 at 0.08±1.82 μg mL−1, followed by C. tagal with IC50 at 0.85±1.46 μg mL−1 and B. sensitivum with IC50 at 2.24±1.58 μg mL−1.Conclusion
This is the first report on the α-glucosidase inhibitory effect of the six Philippine plants; thus, partly defining the mechanism on why these medicinal plants possess antidiabetic properties. 相似文献12.
Ethnopharmacological relevance
In particular five polypore species, i.e. Laetiporus sulphureus, Fomes fomentarius, Fomitopsis pinicola, Piptoporus betulinus, and Laricifomes officinalis, have been widely used in central European folk medicines for the treatment of various diseases, e.g. dysmenorrhoea, haemorrhoids, bladder disorders, pyretic diseases, treatment of coughs, cancer, and rheumatism. Prehistoric artefacts going back to over 5000 years underline the long tradition of using polypores for various applications ranging from food or tinder material to medicinal–spiritual uses as witnessed by two polypore species found among items of Ötzi, the Iceman. The present paper reviews the traditional uses, phytochemistry, and biological activity of the five mentioned polypores.Materials and methods
All available information on the selected polypore taxa used in traditional folk medicine was collected through evaluation of literature in libraries and searches in online databases using SciFinder and Web of Knowledge.Results
Mycochemical studies report the presence of many primary (e.g. polysaccharides) and secondary metabolites (e.g. triterpenes). Crude extracts and isolated compounds show a wide spectrum of biological properties, such as anti-inflammatory, cytotoxic, and antimicrobial activities.Conclusions
The investigated polypores possess a longstanding ethnomycological tradition in Europe. Here, we compile biological results which highlight their therapeutic value. Moreover, this work provides a solid base for further investigations on a molecular level, both compound- and target-wise. 相似文献13.
近年来真菌感染率逐年上升,传统抗真菌药物易产生耐药性,而中药在防治真菌感染方面具有一定的优势。本文就近5年来中药对白念珠菌、皮肤癣菌、曲霉菌、马拉色菌、串珠镰孢菌、申克孢子丝菌、新生隐球菌及真菌生物膜的干预研究进展进行综述。 相似文献
14.
Fabrice Fekam Boyom Eugénie Madiesse Kemgne Roselyne Tepongning Vincent Ngouana Wilfred Fon Mbacham Etienne Tsamo Paul Henri Amvam Zollo Jiri Gut Philip J. Rosenthal 《Journal of ethnopharmacology》2009
Aim of the study
In a search for new plant-derived biologically active compounds against malaria parasites, we have carried out an ethnopharmacological study to evaluate the susceptibility of cultured Plasmodium falciparum to extracts and fractions from seven Cameroonian medicinal plants used in malaria treatment. We have also explored the inhibition of the Plasmodium falciparum cysteine protease Falcipain-2.Materials and methods
Plant materials were extracted by maceration in organic solvents, and subsequently partitioned or fractionated to afford test fractions. The susceptibility of erythrocytes and the W2 strain of Plasmodium falciparum to plant extracts was evaluated in culture. In addition, the ability of annonaceous extracts to inhibit recombinant cysteine protease Falcipain-2 was also assessed.Results and discussion
The extracts showed no toxicity against erythrocytes. The majority of plant extracts were highly active against Plasmodium falciparumin vitro, with IC50 values lower than 5 μg/ml. Annonaceous extracts (acetogenin-rich fractions and interface precipitates) exhibited the highest potency. Some of these extracts exhibited modest inhibition of Falcipain-2.Conclusion
These results support continued investigation of components of traditional medicines as potential new antimalarial agents. 相似文献15.
通过野外资源调查、整理各大标本馆标本原始记录和查阅文献记载等方法,系统整理、总结、归纳了列当属、肉苁蓉属和草苁蓉属民族药用植物种类、功效及民间使用情况,结果表明列当属6种药用植物在4个少数民族间作为7种民族药应用,草苁蓉属2种药用植物在8个少数民族间作为10种民族药应用,肉苁蓉属2种药用植物在3个少数民族间作为3种民族药应用,且同种药用植物常作不同民族药;发现3属植物的传统疗效主要集中在补肾壮阳、止血和止痛3个方面,并且该传统疗效与现代药理研究结果基本吻合。因此深入研究植物种类丰富的列当属植物资源对缓解肉苁蓉植物资源匮乏局面和扩大药源具有积极意义。 相似文献
16.
目的:克隆金银花类药用植物4-二磷酸胞苷-2-C-甲基赤藓糖激酶(4-diphosphocytidyl-2-C-methyl-D-erythritol kinase,IspE)和4-羟基-3-甲基-2-邻苯基二磷酸还原酶(4-hydroxy-3-methylbut-2-enyl diphosphate reductase,IspH)基因,并对其基因序列、蛋白特性和转录活性进行分析、比较.方法:从忍冬Lonicera japonica转录组测序结果中分析获得了IspE,IspH基因.分别以忍冬、红白忍冬L.japonica var.chinensis、红腺忍冬L.hypoglauca和水忍冬L.dasystyla新鲜花蕾为材料,利用RT-PCR技术克隆获得了4种金银花类药用植物IspE和IspH基因的全长cDNA.运用生物信息学分析软件,预测编码蛋白的结构和功能,并通过RT-PCR检测IspE和IspH在忍冬、红白忍冬、红腺忍冬、水忍冬花蕾中的转录情况.结果:金银花类药用植物IspE基因含有1个完整的开放阅读框,长度为1 221 bp,编码406个氨基酸;IspH含有一个完整的开放阅读框,长度为1 380 bp,编码459个氨基酸.IspE和IspH均为非分泌蛋白,均定位于叶绿体中.RT-PCR分析结果表明在忍冬、红腺忍冬和水忍冬的花蕾中IspE,IspH基因的转录水平没有显著差异,但红白忍冬花蕾中IspE,IspH基因的转录水平均显著高于忍冬.结论:克隆获得忍冬、红白忍冬、红腺忍冬和水忍冬中IspE,IspH基因,并证实了其在不同金银花类药用植物中的表达,为进一步研究IspE,IspH基因对萜类化合物生物合成和花香气以及颜色的影响奠定了基础. 相似文献
17.
Gemma Di Pompo Ferruccio Poli Manuela Mandrone Beatrice Lorenzi Laura Roncuzzi Nicola Baldini Donatella Granchi 《Journal of ethnopharmacology》2014
Ethnopharmacological relevance
Four Indian plants, traditionally used in Ayurvedic medicine: Asparagus racemosus Willd., Emblica officinalis Gaertn., Hemidesmus indicus R. Br., and Rubia cordifolia L. were selected on the basis of their ethnobotanical use and of scientific evidence that suggests a potential efficacy in the treatment of bone-loss diseases. The antiresorptive properties of the four plants have been investigated. The aim was to provide adequate evidence for the exploitation of natural compounds as alternative therapeutics for the treatment of diseases caused by increased osteoclast activity.Materials and methods
Decoctions were prepared from dried plant material according to the traditional procedure and standardization by HPLC was performed using marker compounds for each species. Total polyphenols, flavonoids and radical scavenging activity of the decoctions were also determined. The bioactivity of the plant decoctions was evaluated in subsequent phases. (1) A cytotoxicity screening was performed on the mouse monocytic RAW 264.7 cell line to define the concentrations that could be utilized in the following step. (2) The antiresorptive properties of plant decoctions were compared with that of a “gold standard” drug (alendronate) by measuring osteoclastogenesis inhibition and osteoclast apoptosis. (3) The toxic effect on bone forming cells was excluded by evaluating the impact on the proliferation of osteogenic precursors (mesenchymal stem cells, MSC).Results
All the decoctions inhibited osteoclastogenesis similarly to alendronate at the highest doses, but Hemidesmus indicus and Rubia cordifolia were also effective at lower concentrations. Apoptosis increased significantly when cells were exposed to the highest concentration of Emblica officinalis, Hemidesmus indicus, and Rubia cordifolia. All concentrations of Emblica officinalis tested inhibited the proliferation of osteogenic precursors, while only the highest doses of Asparagus racemosus and Rubia cordifolia were toxic. On the contrary, Hemidesmus indicus did not affect osteogenic precursor growth at any concentration tested.Conclusion
Among the medicinal plants included in the study, Hemidesmus indicus showed the greatest antiosteoclastic activity without toxic effect on osteogenic precursors. Therefore, Hemidesmus indicus exhibits the properties of an antiresorptive drug and represents the ideal candidate for further clinical investigations. 相似文献18.
M. Maldini S. Sosa P. Montoro A. Giangaspero M.J. Balick C. Pizza R. Della Loggia 《Journal of ethnopharmacology》2009
Ethnopharmacological relevance
An investigation of topical anti-inflammatory activity was undertaken on plants used in Central America traditional medicine.Aim of study
Four herbal drugs used in the folk medicine of Central America to treat inflammatory skin affections (Acacia cornigera bark, Byrsonima crassifolia bark, Sphagneticola trilobata leaves and Sweetia panamensis bark) were evaluated for their topical anti-inflammatory activity.Materials and methods
Petroleum ether, chloroform and methanol extracts were obtained for herbal medicines and then extracts were tested on Croton oil-induced ear dermatitis model in mice.Results
Almost all the extracts reduced the Croton oil-induced ear dermatitis in mice and the chloroform ones showed the highest activity, with ID50 (dose giving 50% oedema inhibition) values ranging from 112 μg/cm2 (Byrsonima crassifolia) to 183 μg/cm2 (Sphagneticola trilobata). As reference, ID50 of the non-steroidal anti-inflammatory drug indomethacin was 93 μg/cm2.Conclusions
Lipophilic extracts from these species can be regarded as potential sources of anti-inflammatory principles. 相似文献19.
C.M. Huisden A.T. Adesogan J.M. Gaskin C.H. Courtney A.M. Raji T. Kang 《Journal of ethnopharmacology》2010
Ethnopharmacological relevance
Mucuna pruriens is a tropical legume anecdotally reputed to have anthelmintic properties. This study was conducted to examine the validity of such claims.Aim of the study
The aim of this study was to determine if ingestion of Mucuna seeds reduces helminth parasite infestation in lambs.Materials and methods
Thirty-six Dorper × Katahdin ram lambs were assigned to three treatments, a cottonseed meal based control diet, a diet in which Mucuna replaced cottonseed meal and the control diet with levamisole (7.5 mg/kg body weight) administration. All diets were isonitrogenous and isocaloric. The 12 lambs in each treatment were assigned randomly to 4 pens, each containing 3 lambs. Lambs were trickle infected three times per week by gavage with infectious Haemonchus contortus larvae (2000 larvae/lamb) for 3 weeks.Results
Levamisole treatment decreased fecal egg counts by 87% and abomasal worm counts by 83%. Mucuna intake did not statistically affect fecal egg counts or abomasal worm counts, though numerical (P > 0.10) reductions of 7.4% and 18.1%, respectively were evident. Anemia indicators, feed intake, and lamb growth were unaffected by treatment.Conclusions
Levamisole reduced the Haemonchus parasite burden in lambs significantly but feeding Mucuna reduced the burden by levels unlikely to eliminate the clinical effects of parasitism. 相似文献20.
Su JY Tan LR Lai P Liang HC Qin Z Ye MR Lai XP Su ZR 《Journal of ethnopharmacology》2012,141(2):608-614