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In vitro antibacterial potential of some Vitex species against human pathogenic bacteria 被引量:5
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作者 Krishnan Kannathasan Annadurai Senthilkumar Venugopalan Venkatesalu 《Asian Pacific Journal of Tropical Medicine》 SCIE CAS 2011年第8期645-648,共4页
Objective:To study the antibacterial activity of the leaf methanol extracts of five different species of Vitex namely,Vilex altissima(V.allissima),Vitex diversifolia(V.diversifolia),Vitex negundo(V.negundo),Vitex pedu... Objective:To study the antibacterial activity of the leaf methanol extracts of five different species of Vitex namely,Vilex altissima(V.allissima),Vitex diversifolia(V.diversifolia),Vitex negundo(V.negundo),Vitex peduncularis(V.peduncularis) and Vitex trifolia(V.trifolia). Methods:Antibacterial assay was carried out by using disc diffusion method,determination of minimum inhibitory concentrations(MIC) and minimum bactericidal concentrations(MBC) against five strains of Gram-positive and seven strains of Gram-negative human pathogenic bacterial strains.Results:The results of antibacterial activity of Vitex species showed that the extracts possessed a broad spectrum of antibacterial activity.The V.peduncularis possessed the highest activity against all the microorganisms screened.It produced a zone of inhibition ranged between (11.000±0.577) and(22.670±0.667) mm and the MIC values were from 62.5 to I 000.0μg/mL and the MBC values were from 125.0 to 2 000.0μg/mL.Conclusions:Based on the present study, V.peduncularis is recommended for the isolation of antibacterial molecule responsible for the activity against the tested human pathogenic bacterial strains. 展开更多
关键词 ANTIBACTERIAL activity HUMAN PATHOGENIC bacteria METHANOL EXTRACTS vitex
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牡荆叶化学成分研究 被引量:5
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作者 李曼曼 黄正 +6 位作者 霍会霞 张静 郑姣 张倩 赵云芳 李军 屠鹏飞 《世界科学技术-中医药现代化》 2015年第3期578-582,共5页
目的:研究牡荆叶Vitex negundo L.var.cannabifolia的化学成分。方法:采用硅胶、葡聚糖凝胶Sephadex LH 20、十八烷基硅烷键合硅胶(ODS)和半制备HPLC等柱色谱技术,对牡荆叶的化学成分进行分离纯化,结合其理化性质及MS、NMR等光谱数据鉴... 目的:研究牡荆叶Vitex negundo L.var.cannabifolia的化学成分。方法:采用硅胶、葡聚糖凝胶Sephadex LH 20、十八烷基硅烷键合硅胶(ODS)和半制备HPLC等柱色谱技术,对牡荆叶的化学成分进行分离纯化,结合其理化性质及MS、NMR等光谱数据鉴定化合物的结构。结果:从牡荆叶95%乙醇提取物的醋酸乙酯萃取部位分离得到11个化合物,分别鉴定为芹菜素(1)、5,4′-二羟基-3,6,7-三甲氧基黄酮(2)、猫眼草酚(3)、槲皮素(4)、1,4-二羟基(3R,5R)-二咖啡酰氧基环己甲酸甲酯(5)、灰毡毛忍冬素F(6)、椒二醇(7)、caryolandiol(8)、β-谷甾醇(9)、对羟基苯甲酸(10)和β-胡萝卜苷(11)。结论:化合物5 8为首次从牡荆属植物中分离得到,化合物1、4为首次从牡荆叶中分离得到。 展开更多
关键词 马鞭草科 牡荆属 牡荆叶 黄酮 咖啡酰奎宁酸酯
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In vivo antioxidant effect of aqueous root bark,stem bark and leaves extracts of Vitex doniana in CCl_4 induced liver damage rats 被引量:4
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作者 Kadejo Olubukola Adetoro James Dorcas Bolanle +1 位作者 Sallau Balarebe Abdullahi Ozigi Abdulrahaman Ahmed 《Asian Pacific Journal of Tropical Biomedicine》 SCIE CAS 2013年第5期395-400,共6页
Objective:The antioxidant effects of aqueous root bark,stem bark and leaves of Vitex doniana(V.doniana)were evaluated in carbon tetrachloride(CCl_4)induced liver damage and non induced liver damage albino rats.Methods... Objective:The antioxidant effects of aqueous root bark,stem bark and leaves of Vitex doniana(V.doniana)were evaluated in carbon tetrachloride(CCl_4)induced liver damage and non induced liver damage albino rats.Methods:A total of 60 albino rats(36 induced liver damage and 24 non induced liver damage)were assigned into liver damage and non liver damage groups of 6 rats in a group.The animals in the CCl_4 induced liver damage groups,were induced by intraperitoneal injection with a single dose of CCl_4(148mg·ml^(-1)·kg^(-1)body weight)as a 1:1(v/v)solution in olive oil and were fasted for 36 h before the subsequent treatment with aqueous root bark,stem bark and leaves extracts of V.doniana and vitamin E as standard drug(100 mg/kg body weighy per day)for 21 d,while the animals in the non induced groups were only treated with the daily oral administration of these extracts at the same dose.The administration of CCl_4 was done once a week for a period of three weeks.Results:The liver of CCl_4 induced not treated group showed that the induction with CCl_4,significantly(P<0.05)increased thiobarbituric acid reactive substance(TBARS)and significantly(P<0.05)decreased superoxide dismutase(SOD)and catalase(CAT).However there was no significant(P>0.05)difference between TBARS,SOD and CAT in the liver of the induced treated groups and normal control group.In the kidney.TBARS showed no significant(P>0.05)difference between the normal and the induced groups,SOD was significantly(P<0.05)reduced in the CCl_4 group compared to standard drug and normal control groups,CAT was significantly(P<0.05)increased in root and vitamin E groups when compared to induced not treated group.The studies also showed that when the extracts were administered to normal animals,there was no significant(P>0.05)change in the liver and kidney level of TBARS,SOD and CAT compared with the normal control except in the kidney of animals treated with stem extract where TBARS was significantly(P<0.05)lowered compared to control group.Conclusion:The result of th 展开更多
关键词 ANTIOXIDANT vitex doniana Carbon TETRACHLORIDE
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不同种类木本粗饲料育肥绒肉兼用辽宁绒山羊效果研究 被引量:4
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作者 孙亚波 贾富勃 +5 位作者 朱延旭 韩迪 部卫平 王春燕 孙淑琴 郑旭 《饲料研究》 CAS 北大核心 2022年第5期6-10,共5页
试验旨在研究不同种类木本粗饲料育肥绒肉兼用辽宁绒山羊的效果。选择24只年龄2.5岁左右、体重(43.41±1.76) kg的绒肉兼用辽宁绒山羊母羊为试验对象,随机分为4组,每组6只。1组为对照组;2~4组为试验组,分别在日粮中添加10%的荆条、... 试验旨在研究不同种类木本粗饲料育肥绒肉兼用辽宁绒山羊的效果。选择24只年龄2.5岁左右、体重(43.41±1.76) kg的绒肉兼用辽宁绒山羊母羊为试验对象,随机分为4组,每组6只。1组为对照组;2~4组为试验组,分别在日粮中添加10%的荆条、小叶锦鸡儿、柞树叶。试验期75 d。结果显示,荆条粗蛋白含量显著低于小叶锦鸡和柞树叶(P<0.05),荆条粗脂肪含量极显著低于小叶锦鸡和柞树叶(P<0.01),荆条粗纤维和酸性洗涤纤维含量显著高于柞树叶(P<0.05),柞树叶钙含量极显著高于荆条和小叶锦鸡(P<0.01),柞树叶磷含量显著高于荆条(P<0.05)。2~4组绒山羊的日增重均极显著高于1组(P<0.01),4组绒山羊料重比显著低于1组(P<0.05)。4组绒山羊粗蛋白的表观消化率显著高于1组(P<0.05),粗脂肪表观消化率显著高于2组(P<0.05)。4组粗纤维表观消化率显著高于第1组(P<0.05);中性洗涤纤维表观消化率显著高于第2组(P<0.05)。日粮中添加10%的荆条、小叶锦鸡儿和柞树叶可降低养殖成本,每只羊每天增加盈利0.37~0.66元。研究表明,木本粗饲料可作为育肥用粗饲料,能替代部分优质牧草,其中柞树叶效果最好。 展开更多
关键词 木本粗饲料 荆条 小叶锦鸡儿 柞树叶 绒肉兼用 辽宁绒山羊
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云南山牡荆化学成分研究 被引量:2
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作者 陈亚萍 何承刚 +4 位作者 孙忠文 邵娅婷 张君 徐俊驹 李玉鹏 《云南农业大学学报(自然科学版)》 CSCD 北大核心 2018年第4期768-771,共4页
【目的】研究产于云南西双版纳地区山牡荆的化学成分。【方法】利用色谱技术对山牡荆根的乙醇提取物进行分离纯化,通过波谱分析方法鉴定所得化合物的结构。【结果】从山牡荆根得到8个化合物,其结构用波谱分析方法分别鉴定为豆甾醇(1)、... 【目的】研究产于云南西双版纳地区山牡荆的化学成分。【方法】利用色谱技术对山牡荆根的乙醇提取物进行分离纯化,通过波谱分析方法鉴定所得化合物的结构。【结果】从山牡荆根得到8个化合物,其结构用波谱分析方法分别鉴定为豆甾醇(1)、紫花牡荆素(2)、柚皮素(3)、咖啡酸(4)、异荭草素(5)、二氢松柏醇(6)、芦丁(7)和胡萝卜苷(8)。【结论】化合物3~7为首次从该植物中分离得到。 展开更多
关键词 牡荆属 山牡荆 化学成分
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Population Genetic Structure of the Medicinal Plant Vitex rotundifolia in China: Implications for its Use and Conservation 被引量:1
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作者 Yuan Hu Yu Zhu +5 位作者 Qiao-Yan Zhang Hai-Liang Xin Lu-Ping Qin Bao-Rong Lu Khalid Rahman Han-Chen Zheng 《Journal of Integrative Plant Biology》 SCIE CAS CSCD 2008年第9期1118-1129,共12页
Vitex rotundifolia L. is an important plant species used in traditional Chinese medicine. For its efficient use and conservation, genetic diversity and clonal variation of V. rotundifolia populations in China were inv... Vitex rotundifolia L. is an important plant species used in traditional Chinese medicine. For its efficient use and conservation, genetic diversity and clonal variation of V. rotundifolia populations in China were investigated using inter-simple sequence repeat markers. Fourteen natural populations were included to estimate genetic diversity, and a large population with 135 individuals was used to analyze clonal variation and fine-scale spatial genetic structure. The overall genetic diversity (GD) of V. rotundifolia populations in China was moderate (GD=0.190), with about 40% within-population variation. Across all populations surveyed, the average within-population diversity was moderate (P = 22.6%; GD = 0.086). A relatively high genetic differentiation (Gst = 0.587) among populations was detected based on the analysis of molecular variance data. Such characteristics of V. rotundifofia are likely attributed to its sexual/asexual reproduction and limited gene flow. The genotypic diversity (D = 0.992) was greater than the average values of a clonal plant, indicating its significant reproduction through seedlings. Spatial autocorrelation analysis showed a clear within-population structure with gene clusters of approximately 20 m. Genetic diversity patterns of V. rotundifolia in China provide a useful guide for its efficient use and conservation by selecting particular populations displaying greater variation that may contain required medicinal compounds, and by sampling individuals in a population at 〉20 m spatial intervals to avoid collecting individuals with identical or similar genotypes. 展开更多
关键词 beach vitex medicinal plant CONSERVATION vitex rotundifolia gene cluster genetic diversity sampling strategy spatial structure.
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Hepatocurative potential of Vitex doniana root bark,stem bark and leaves extracts against CCl_4-induced liver damage in rats 被引量:2
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作者 James Dorcas Bolanle Kadejo Olubukola Adetoro +1 位作者 Sallau Abdullahi Balarabe Owolabi Olumuyiwa Adeyemi 《Asian Pacific Journal of Tropical Biomedicine》 SCIE CAS 2014年第6期480-485,共6页
Objective:To evaluate the hepatocurative effects of aqueous root bark,stem bark and leaves of Vitex doniana in carbon tetrachloride(CCl_4)induced liver damage and non induced liver damage albino rats.Methods:A total o... Objective:To evaluate the hepatocurative effects of aqueous root bark,stem bark and leaves of Vitex doniana in carbon tetrachloride(CCl_4)induced liver damage and non induced liver damage albino rats.Methods:A total of 60 albino rats(36 induced liver damage and 24 non induced liver damage)were assigned into liver damage and non liver damage groups of 6 rats in a group.The animals in the CCl_4 induced liver damage groups,were induced by intraperitoneal injection with a single dose of CCl_4(1 mL/kg body weight)as a 1:1(v/v)solution in olive oil and were fasted for 36 h before the subsequent treatment with aqueous root bark,stem bark and leaves extracts of Vitex doniana and vitamin E as standard drug(100 mg/kg body weight per day)for 21 d,while the animals in the non induced groups were only treated with the daily oral administration of these extracts at the same dose.The administration of CCl_4 was done once a week for a period of 3 weeks.Results:There was significant(P<0.05)increase in concentration of all liver marker enzymes,alanine aminotransferase,aspartate aminotransferase and alkaline aminotransferase(ALT,AST and ALP)and significant(P<0.05)decrease in albumin in the CCl_4 induced liver damage control when compared to the normal control.The extracts caused a significant(P<0.05)reduction in the serum activities of liver marker enzymes(ALT,AST and ALP)and a significant(P<0.05)increase in albumin of all the induced treated groups.Only stem bark extract and vitamin E significantly(P<0.05)increased total prolein.All the extracts significantly(P<0.05)lowered serum creatinine whereas only root bark extract significantly(P<0.05)lowered serum level of urea in the rats with CCl_4 induced liver damage.Conclusion:Hepatocurative study shows that all the plant parts(root bark,stem bark and leaves)possess significant hepatocurative properties among other therapeutic values justifying their use in folklore medicine. 展开更多
关键词 vitex doniana Hepatocurative Liver damage CREATININE Carbon TETRACHLORIDE
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微量热法研究Vitex negundo Linn对大肠杆菌抑制作用的活性部位 被引量:1
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作者 屈啸声 林瑞森 方文军 《化学学报》 SCIE CAS CSCD 北大核心 2009年第23期2692-2696,共5页
开发药用植物首先必须确定其活性部位.我们采用微量热法鉴定了一种植物Vitex negundo Linn的四种不同提取物:正己烷提取物、氯仿提取物、乙酸乙酯提取物和甲醇提取物对大肠杆菌(E.coli)的抑制作用.结果表明甲醇提取物对大肠杆菌生长的... 开发药用植物首先必须确定其活性部位.我们采用微量热法鉴定了一种植物Vitex negundo Linn的四种不同提取物:正己烷提取物、氯仿提取物、乙酸乙酯提取物和甲醇提取物对大肠杆菌(E.coli)的抑制作用.结果表明甲醇提取物对大肠杆菌生长的代谢热谱抑制作用最强.通过计算该提取物作用下大肠杆菌的生长速率常数,表明该提取物的抑制作用随浓度的升高而增强. 展开更多
关键词 大肠杆菌 活性部位 抑制作用 微量热 vitex negundo
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Phytopharmacological Review on Vitex agnus‐castus: A Potential Medicinal Plant 被引量:1
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作者 hina zahid ghazala h.rizwani sumaira ishaqe 《Chinese Herbal Medicines》 CAS 2016年第1期24-29,共6页
Vitex agnus-castus is a small tree or shrub, belonging to the family Verbenaceae. It is a deciduous shrub native to European, Mediterranean, and Central Asian countries. V. agnus castus has a long tradition as a herba... Vitex agnus-castus is a small tree or shrub, belonging to the family Verbenaceae. It is a deciduous shrub native to European, Mediterranean, and Central Asian countries. V. agnus castus has a long tradition as a herbal remedy and was used in ancient times not only as an anaphrodisiac but also against diverse disturbances of the female genital system. The major constituents in V. agnus-castus are flavonoids, essential oils, diterpenes, and glycosides. The flavonoids (casticin, quercetagetin, and isovitexin) have been shown in vitro to affect estrogen receptors. V. agnus-castus could be used to treat acne, digestive complaints, menstrual irregularities, premen- strual syndrome (PMS), mastalgia, and infertility, and also for lactation support. Although V. agnus-castus has been used for centuries and enjoys wide support from practitioners and the general public for many gynecological complaints, few clinical studies support its documented uses. The presence of phytochemical and pharmacological activities has proved that the plant has a leading capacity for the development of new good efficacy drug in future. 展开更多
关键词 clinical pharmacology CONTRAINDICATION vitex agnus-castus
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云南长序荆化学成分研究 被引量:1
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作者 文小玲 何承刚 +4 位作者 张中 杨晓琳 吴荷 徐俊驹 李玉鹏 《云南农业大学学报(自然科学版)》 CSCD 北大核心 2016年第6期1145-1148,共4页
为研究长序荆的化学成分,利用各种色谱技术从长序荆中得到11个化合物,其结构用波谱分析方法分别鉴定为:3’,5-dihydroxy-3,4’,7-trimethoxyflavone(1),3’,5-dihydroxy-4’,6,7-trimethoxyflavone(2),4’,5,7-trihydroxyflavanone... 为研究长序荆的化学成分,利用各种色谱技术从长序荆中得到11个化合物,其结构用波谱分析方法分别鉴定为:3’,5-dihydroxy-3,4’,7-trimethoxyflavone(1),3’,5-dihydroxy-4’,6,7-trimethoxyflavone(2),4’,5,7-trihydroxyflavanone(3),kaempferol(4),luteolin(5),kaempferol-3-O-β-D-glucoside(6),vitexin(7),isovitexin(8),daucosterol(9),β-谷甾醇(10),豆甾醇(11)。其中,化合物1-6为首次从该植物中分离得到。 展开更多
关键词 牡荆属 长序荆 化学成分
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Vitex glabrata R.Br.悬浮培养细胞的生长条件优化及20-羟基蜕皮激素的生产 被引量:1
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作者 Duangjai Sinlaparaya Preeyada Duanghaklang +1 位作者 Sanha Panichajakul 张玉霞 《生物工程学报》 CAS CSCD 北大核心 2007年第6期1033-1036,共4页
研究了培养基、植物生长调节素以及接种量对Vitex glabrata R.Br.悬浮培养细胞的生长情况以及对20-羟基蜕皮激素形成的作用。当细胞在添加有2.0mg/LBAP(6-苯甲酸嘌呤)和1.0mg/L2,4-D的Gamborg’s B5培养基中培养时细胞生长和20-羟基蜕... 研究了培养基、植物生长调节素以及接种量对Vitex glabrata R.Br.悬浮培养细胞的生长情况以及对20-羟基蜕皮激素形成的作用。当细胞在添加有2.0mg/LBAP(6-苯甲酸嘌呤)和1.0mg/L2,4-D的Gamborg’s B5培养基中培养时细胞生长和20-羟基蜕皮激素的形成达到了最高水平。当接种量为20%PCV(积压细胞体积)时观察到了20-羟基蜕皮激素的最高产量,大约是1.1mg/(L.d)。实验数据也表明当接种量增加到20%PCV时,产量提高了7倍。 展开更多
关键词 20-羟基蜕皮激素 悬浮培养 vitex glabrata
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Anti-Amnesic Activity of Vitex Negundo in Scopolamine Induced Amnesia in Rats 被引量:1
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作者 Abhinav Kanwal Jogender Mehla +3 位作者 Madhusudana Kuncha Vegi Ganga Modi Naidu Yogendra Kumar Gupta Ramakrishna Sistla 《Pharmacology & Pharmacy》 2010年第1期1-8,共8页
In the present study we investigated the anti-amnesic activity of Vitex negundo in scopolamine induced amnesia in rats. Wistar rats (180-200 g) were trained on active avoidance task. Each animal received session of 15... In the present study we investigated the anti-amnesic activity of Vitex negundo in scopolamine induced amnesia in rats. Wistar rats (180-200 g) were trained on active avoidance task. Each animal received session of 15 trials with inter trial duration of 15 s for 5 days. Scopolamine (3 mg/kg, i.p) was administered at different time periods on the basis of stages of memory i.e acquisition, consolidation and retention in different groups (n = 6). Effect of Vitex negundo extract was evaluated and compared to a standard drug, Donepezil. Significant (p 【0.05) increase in the avoidance response on the 5th session has been observed as compared to 1st session in control group. Scopolamine treatment significantly (p 【0.05) reduced the avoidance response compared to control. Extract treated groups shown significant (p 【0.05) increase in number of avoidance responses as compared to scopolamine treated groups. Increased oxidative stress in brain after scopolamine treatment, as observed by increase in MDA &amp;decrease in GSH &amp;SOD, was lowered in the groups treated with extracts. AChE activity was also improved after V. negundo treatment. Results of the study have shown that V. negundo treated groups decrease the phenomenon of amnesia by increasing learning of memory through antioxidant effect and decreasing AChE activity. 展开更多
关键词 vitex Negundo AMNESIA Acetylcholinestrase SCOPOLAMINE Learning and Memory OXIDATIVE Stress
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Study on Extraction Technology of Total Flavonoids from Vitex rotundifolia 被引量:1
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作者 Xianping DAI 《Agricultural Biotechnology》 CAS 2015年第1期31-32,35,共3页
[ Objective ] This study aimed to establish the optimal extraction technology of total flavonoids from Vitex rotundifolia and provide a theoretical basis for the utilization and development of V. rotundifolia. [ Metho... [ Objective ] This study aimed to establish the optimal extraction technology of total flavonoids from Vitex rotundifolia and provide a theoretical basis for the utilization and development of V. rotundifolia. [ Method ] With the extraction temperature, extraction time, solid-liquid ratio and ethanol concentration as various factors, the content of total flavonoids as an indicator, the extraction technology of total flavonoids from V. rotundifolia was optimized by orthogonal experiment. [ Result] The optimal combination of extraction conditions was extraction temperature 70℃, extraction time 1 h, solid-liquid ratio 1: 12, ethanol concentration 70%. [Condusion] The optimized extraction technology was simple and efficient for extracting total flavonoids from V. rotundifolia. 展开更多
关键词 vitex rotundifolia Total flavonoids Orthogonal experiment Extraction technology
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蔓荆子研究进展 被引量:3
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作者 彭丽丽 刘华 +2 位作者 刘祥东 黄璐敏 刘贤旺 《江西林业科技》 2004年第1期30-31,共2页
综述了蔓荆子品种考证、品种来源及资源状况、生物学特性、栽培技术、化学成分、临床应用的研究进展,为进一步研究蔓刑子提供参考。
关键词 蔓荆子 果实 研究进展
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牡荆属植物提取物抗肿瘤作用研究进展 被引量:3
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作者 方呈祥 孙海燕 +1 位作者 姜浩 曹建国 《现代生物医学进展》 CAS 2009年第24期4796-4797,4800,共3页
牡荆属Vitex植物系马鞭草科乔木或灌木,约250种,主要分布于热带和温带地区,我国有14种,7亚种,3种主产于长江以南。在我国有7种药用,即:灰毛牡荆V.canescens、黄荆V.negundo、蔓荆V.trifolia、单叶蔓荆V.rotundifolia、穗花牡荆V.agnus-c... 牡荆属Vitex植物系马鞭草科乔木或灌木,约250种,主要分布于热带和温带地区,我国有14种,7亚种,3种主产于长江以南。在我国有7种药用,即:灰毛牡荆V.canescens、黄荆V.negundo、蔓荆V.trifolia、单叶蔓荆V.rotundifolia、穗花牡荆V.agnus-castus、长序荆V.peduncularis和山牡荆V.quinata。现代药理研究表明,该属中一些植物或其组分具有镇痛、抗炎、抗菌、抗肿瘤、抑制淋巴细胞及激素调节、抗氧化、蜕皮、驱虫等功效。牡荆属植物所含的化学成分类型丰富,主要酚类成分有黄酮类、苯丙素类及有机酸类等化合物。本文就牡荆属植物提取物抗肿瘤作用综述如下: 展开更多
关键词 牡荆属植物 提取物 抗肿瘤作用
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小断面软岩隧道突水涌泥综合处治技术 被引量:3
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作者 方良 刘同山 高巍 《河南城建学院学报》 CAS 2017年第6期31-36,42,共7页
软岩隧道突水涌泥处理过程中危险性极大,稍有不慎,极易引起二次涌泥,给洞内工作人员的生命安全造成极大威胁。本文以大唐林州2×300MW级热电机组引水隧道突水涌泥施工实践为例,以小导管注浆作为超前支护,淤泥在小导管注浆作用下形... 软岩隧道突水涌泥处理过程中危险性极大,稍有不慎,极易引起二次涌泥,给洞内工作人员的生命安全造成极大威胁。本文以大唐林州2×300MW级热电机组引水隧道突水涌泥施工实践为例,以小导管注浆作为超前支护,淤泥在小导管注浆作用下形成的固结体作为部分自承体系的新奥法理论,荆条配合钢筋网片形成反滤层过水不过砂石,采用强度、刚度更大的U型钢作为初次支护的劲性骨架,二次衬砌跟进,遵循短开挖强支护的原则,得出了塌方处理施工经验。 展开更多
关键词 小导管注浆 荆条 矿用单体液压柱 U型钢 短开挖强支护
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Evn-50对人乳腺癌MCF-7耐三苯氧胺细胞株生长和凋亡的影响 被引量:3
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作者 胡会永 周俊 +5 位作者 万芳 董力枫 张峰 王一刻 陈芳芳 陈益定 《浙江大学学报(医学版)》 CAS CSCD 北大核心 2012年第5期498-505,共8页
目的:通过研究黄荆子的乙酸乙酯提取物Evn-50在体外对人乳腺癌MCF-7和耐三苯氧胺细胞株(MCF-7/TAM-R)的生长和凋亡的影响,探索Evn-50在逆转乳腺癌耐药中的作用及其可能机制。方法:构建MCF-7/TAM-R细胞系,分别用DMSO、5μmol/L TAM、5μm... 目的:通过研究黄荆子的乙酸乙酯提取物Evn-50在体外对人乳腺癌MCF-7和耐三苯氧胺细胞株(MCF-7/TAM-R)的生长和凋亡的影响,探索Evn-50在逆转乳腺癌耐药中的作用及其可能机制。方法:构建MCF-7/TAM-R细胞系,分别用DMSO、5μmol/L TAM、5μmol/L TAM+50μg/ml Evn-50和50μg/ml Evn-50处理细胞。然后,采用MTT法测定细胞存活率,PI单染流式细胞术检测细胞凋亡率及细胞周期分布情况,免疫蛋白印记法观察Evn-50和TAM单独或联合作用时的机制。结果:Evn-50单药或与TAM联合均可以降低人乳腺癌MCF-7和三苯氧胺耐药细胞株MCF-7/TAM-R的存活率,两药联合作用更为明显,同单用TAM组相比差异有统计学意义(P<0.01)。Evn-50单药或与TAM联合应用对两株细胞的凋亡均有明显影响,且随着作用时间的延长细胞凋亡逐渐增多,其中以72 h时细胞凋亡率和G2期细胞比例最为明显(P<0.01)。TAM和Evn-50联合处理无论是对MCF-7细胞还是对三苯氧胺耐药细胞MCF-7/TAM-R,均能明显下调p-AKT(Ser473)和p-MAPK44/42(Thr202/Tyr204)蛋白水平。结论:Evn-50能够抑制MCF-7和MCF-7/TAM-R细胞株的生长并诱导细胞凋亡,尤其在Evn-50与TAM联合处理时更为明显。其作用机制可能与AKT和MAPK信号通路的下调相关,但需要进一步研究证实。 展开更多
关键词 乳腺肿瘤/病理学 乳腺肿瘤/中药疗法 Evn-50/药理学 牡荆属 植物提取物/药理学 细胞增殖/药物作用 细胞凋亡/药物作用 肿瘤细胞 培养的
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Growth inhibition of a human colon carcinoma cell, COLO 201, by a natural product, <i>Vitex agnus-castus</i>fruits extract, <i>in vivo</i>and <i>in vivo</i>
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作者 Masahiko Imai Bo Yuan +7 位作者 Hidetomo Kikuchi Mai Saito Kunio Ohyama Chieko Hirobe Takashi Oshima Takahiro Hosoya Hiroshi Morita Hiroo Toyoda 《Advances in Biological Chemistry》 2012年第1期20-28,共9页
An extract from ripe fruit of Vitex agnus-castus (Vitex) has been used to treat patients with various obstetric and gynecological disorders in Europe. We have demonstrated that Vitex showed cytocidal effects on variou... An extract from ripe fruit of Vitex agnus-castus (Vitex) has been used to treat patients with various obstetric and gynecological disorders in Europe. We have demonstrated that Vitex showed cytocidal effects on various types of cancer cell lines including a human colon carcinoma cell line, COLO 201. In this study, we extended our previous study to investigate the detailed mechanisms underlying cytocidal effects of Vi- tex on COLO 201. Furthermore, a possible clinical application of Vitex was also explored in vivo using nude mice xenografted with the cells. Treatment with Vitex induced apoptosis in COLO 201 in a time-dependent manner, accompanying with activa-tion of caspase-9 and -3, but not caspase-8. An inhibitor for c-Jun NH2-terminal kinase (JNK), but not p38 mitogen-activated protein kinase (MAPK), significantly suppressed the apoptosis induction along with caspase-3 activation. Endoplasmic reticulum (ER) stress-related genes were also upregulated by Vitex treatment. Most importantly, the in vivo efficacy of Vitex evaluated by assessing the tumor growth revealed that the administration of Vitex significantly suppressed tumor growth in COLO 201 xenografted mice. Collectively, current results suggest that apoptosis induction by Vitex in COLO 201 is mediated through the activation of JNK and caspase-9, -3 resulted from ER stress. Based on the current clinical application of Vitex, these results thus provide a new insight into the clinical use of Vitex and leave open a possibility of a new regimen as an alternative medicine approach for such devastating colon cancer treatment. 展开更多
关键词 Colon Cancer Apoptosis Induction ER Stress JNK Flavonoids vitex agnus-castus
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Ethnobotanical review and pharmacological properties of selected medicinal plants in Brunei Darussalam:Litsea elliptica,Dillenia suffruticosa,Dillenia excelsa,Aidia racemosa,Vitex pinnata and Senna alata
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作者 May Poh Yik Goh Aida Maryam Basri +2 位作者 Hartini Yasin Hussein Taha Norhayati Ahmad 《Asian Pacific Journal of Tropical Biomedicine》 SCIE CAS 2017年第2期173-180,共8页
The aim of the current study is to review the medicinal properties of the plants found in Brunei Darussalam namely Litsea elliptica, Dillenia suffruticosa, Dillenia excelsa, Aidia racemosa, Vitex pinnata and Senna ala... The aim of the current study is to review the medicinal properties of the plants found in Brunei Darussalam namely Litsea elliptica, Dillenia suffruticosa, Dillenia excelsa, Aidia racemosa, Vitex pinnata and Senna alata. The known phytochemical constituents of these plants and their ability to bring about a range of biological activities are included in this review. These plants have been used traditionally for a multitude of diseases and illnesses. There is a lot of untapped potential in these medicinal plants which could cure multiple diseases. 展开更多
关键词 Litsea elliptica Dillenia suffruticosa Dillenia excelsa Aidia racemosa vitex pinnata Senna alata
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Antifilarial activity of ethyl acetate extract of Vitex negundo leaves in vitro
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作者 KN Sahare V Singh 《Asian Pacific Journal of Tropical Medicine》 SCIE CAS 2013年第9期689-692,共4页
Objective:To evaluate the possible antifilarial effect of ethyl acetate extract of Vitex negundo(Verhenaceae)leaves against Selaria cervi filarial parasite in vitro.Methods:In vitro screening was done by the method of... Objective:To evaluate the possible antifilarial effect of ethyl acetate extract of Vitex negundo(Verhenaceae)leaves against Selaria cervi filarial parasite in vitro.Methods:In vitro screening was done by the method of motility inhibition and NTT reduction assay with concentralions of0.03 to 1.00 mg/mL for 2 to 24 h incubation periods respectively,for possible antifilarial effect by comparing with control.Results:In motility assay,complete inhibition of motility was observed and in MTT reduction assay which gave>50%reduction for concentrations 0.20,0.50and 1.00 mg/mL at 10,6 and 2 h incubation periods respectively in a dose dependent manner(P<0.05).An antifilarial effect imparted by plant extract was found to be a function of their relative concentrations.Inhibitory concentration(IC_(50))for the plant extract was found to be 0.16mg/mL.Conclusions:The present study recorded significant antifilarial effect of Vitex negundo plant extract and contributed toward the development of database for novel drug candidates for lymphatic fllariasis. 展开更多
关键词 Antifilarial ACTIVITY In VITRO ASSAY MEDICINAL plant SETARIA cervi vitex negundo
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