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蓬子菜化学成分研究 总被引:2,自引:0,他引:2
目的:对茜草科拉拉藤属植物蓬子菜Galium verum全草的95%乙醇提取物进行分离并鉴定.方法:经反复纯化制备化合物,并根据化合物的理化性质分析、波谱解析、对照品比较及与文献报道对比鉴定化合物的化学结构.结果:从95%乙醇提取物中分离得到11个化合物,分别鉴定为(+)-松脂素4,4'-o-二-β-D-吡喃葡萄苷(1),表松脂醇(2),右旋杜仲树脂酚(3),异鼠李素(4),异鼠李素3-O-α-L-吡喃鼠李糖基-(1-6)-β-D-吡喃葡萄苷(5),香叶木素(6),香叶木素7-O-β-D-吡喃葡萄糖苷(7),异槲皮苷(8),熊果酸(9),熊果醛(10),茜草萜酸(11).结论:化合物1~5,9~11为从本属植物中首次分离得到. 相似文献
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目的 探讨蓬子菜总黄酮(total flavonoids extracts of Galium verum L.,TFG)对CCl4致小鼠急性肝损伤的影响及其机制。方法 60只昆明小鼠随机分成正常组、模型组、阳性对照组、TFG组。各治疗组予以相应的药物灌胃6 d后,除正常组外其余各组腹腔注射6% CCl4造模,24 h后取样,肝组织HE染色,检测血清中谷草转氨酶(AST)、谷丙转氨酶(ALT)以及肝肾组织中超氧化物歧化酶(SOD)、谷胱甘肽(GSH)、丙二醛(MDA)水平,分析血清中TNF-α和IL-6水平。昆明小鼠50只,随机分成正常组、模型组、TFG组(200 mg·kg-1)、抗IL-6单抗(40 mg·kg-1)+TFG(200 mg·kg-1)组、抗TNF-α单抗(5 mg·kg-1)+TFG(200 mg·kg-1)组,各治疗组予以相应的药物处理6 d后,除正常组外,其余各组腹腔注射6% CCl4造模,24 h后取血清分析AST、ALT水平。结果 与模型组比较,蓬子菜总黄酮能改善肝损伤,降低血清中AST、ALT活性以及肝肾中MDA含量,提高肝肾SOD活性、GSH含量,降低血清中TNF-α和IL-6表达(P<0.05或P<0.01)。抗IL-6、TNF-α单抗能明显降低血清中AST、ALT活性(P<0.05)。结论 蓬子菜总黄酮能通过清除自由基、抑制脂质过氧化,保护细胞膜和线粒体膜的完整性。同时减少IL-6、TNF-α的释放,改善急性肝损伤。 相似文献
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Orhan N Deliorman Orhan D Aslan M Süküroğlu M Orhan IE 《Journal of ethnopharmacology》2012,141(1):220-227
Ethnopharmacological relevance
Galium species have been reported to be used against epilepsy in traditional Turkish folk medicine.Aim of study
The present work was undertaken to evaluate the in vivo anticonvulsant and in vitro neuroprotective effects of Galium spurium L. and to determine the major constituents by UPLC–TOF-MS.Materials and methods
Anticonvulsant activity of the aerial parts of Galium spurium was investigated using pentylenetetrazole, picrotoxin, and maximal electroshock-induced seizure animal models. In order to evaluate the safety, neurotoxicity (Rota rod test) of the ethanol extract was also determined. In vitro neuroprotective effect of the ethanol extract of Galium spurium was assessed by acetylcholinesterase and butrylcholinesterase inhibitions. Ultra Performance Liquid Chromatography–Time of Flight Mass Spectrometer (UPLC–TOF-MS) was used to identify the major compounds in the extract.Results
In pentylenetetrazole-induced seizure, the ethanol extract at doses of 250 and 1000 mg/kg prolonged the onset of seizures. Similarly, Galium spurium (250 and 500 mg/kg) significantly delayed the onset of picrotoxin-induced seizures in mice and these doses also exhibited 12.5% and 17% protection, respectively, against picrotoxin-induced seizures. Furthermore, Galium spurium extract showed a significant protective effect against maximal electroshock-induced seizures at doses of 250 and 1000 mg/kg (50% and 37.5%, respectively) and also all tested doses prolonged the onset of seizures. No motor co-ordination was observed with intraperitoneal injection of Galium spurium extract at doses of 500 and 1000 mg/kg. The extract exhibited 16.2% inhibition against butrylcholinesterase at 200 μg/mL concentration, whereas it did not inhibit acetylcholinesterase. Phytochemical analysis of the extract based on the MS data by UPLC–TOF-MS, ten major compounds (phenolic and triterpenic acids, flavonoids and iridoids) were determined.Conclusions
The results indicate that Galium spurium may have anticonvulsant activity against picrotoxin and maximal electroshock-induced seizures in mice. Phenolic acids, flavonoids and iridoids might be responsible for anticonvulsant activity. The results offer possible beneficial effects by the plant's aerial parts and may suggest a realistic explanation for its traditonal usage in epilepsy. 相似文献4.
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藏药材猪殃殃质量标准研究 总被引:1,自引:0,他引:1
目的:建立猪殃殃药材中绿原酸的薄层色谱鉴别与含量测定方法。方法:采用TIE法对猪殃殃进行鉴别;采用HPLC法测定绿原酸含量,色谱条件为:色谱柱:Phenomenex Luna C18(4.6mm×150mm,5μm);流动相:乙腈-0.4%磷酸溶液(10:90);检测波长:327nm;流速:1.0ml/min;柱温:35℃。结果:各批猪殃殃药材TLC色谱中均能检出绿原酸;绿原酸眦色谱峰与其它色谱峰分离良好,进样量在0.0892-0.4460μg范围内,呈良好线性关系(r=0.9997),平均回收率为96.99%,RSD=1.17%(n=6)。结论:本法简便快捷,结果可靠.为控制猪殃殃药材的质量提供参考。 相似文献
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目的 探讨莲子菜黄酮类化合物香叶木素-7-O-β-D-木糖-(1→6)-β-D-葡萄糖苷(DXG)对人肝癌细胞株HepG2增殖的抑制作用及其诱导HepG2细胞凋亡的机制.方法 台盼蓝染色法检测DXG对HepG2细胞生长的影响;MTT法检测DXG对细胞增殖的抑制作用;吖啶橙/溴乙(AO-EB)荧光染色法观察DXG对HepG2细胞凋亡的形态学影响;琼脂糖凝胶电泳观察凋亡细胞的DNA图谱变化;反转录聚合酶链式反应(RT-PCR)检测凋亡相关基因bcl-2及bax的表达.结果 台盼蓝染色和MTT检测显示,DXG 50、100、200 μg/mL能明显抑制HepG2细胞增殖,与对照组相比差异显著(P<0.05).AO-EB染色可见DXG诱导HepG2细胞凋亡并发生形态学改变,且随DXG的质量浓度升高,凋亡细胞的比例显著增加.琼脂糖凝胶电泳显示,HepG2细胞经DXG 100、200 μg/mL处理48 h后,可见DNA“梯形”碎片条带.RT-PCR实验表明,DXG下调细胞凋亡的抑制基因bcl-2 mRNA表达,促使凋亡基因bax mRNA表达增强.结论 DXG具有显著抑制人肝癌细胞HepG2增殖、诱导其凋亡的作用,其作用机制与调控bax/bcl-2的表达有关. 相似文献