共查询到19条相似文献,搜索用时 187 毫秒
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贵州糯米藤化学成分研究 总被引:2,自引:1,他引:2
目的: 研究贵州糯米藤Gonostegia hirta的化学成分。 方法: 利用硅胶柱色谱、Sephadex LH-20柱色谱、ODS 柱色谱等色谱技术对贵州糯米藤95%乙醇浸提物进行分离纯化,根据理化数据和波谱数据鉴定化合物的结构。 结果: 共分离得到9个化合物,分别鉴定为β-谷甾醇(1)、β-胡萝卜苷(2)、蔗糖(3)、表木栓醇(4)、木栓酮(5)、木栓烷(6)、齐墩果酸(7)、坡模酸(8)、常春藤苷元(9)。 结论: 所有化合物均为首次从贵州糯米藤植物中分离得到。 相似文献
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糯米藤中黄酮类化学成分研究 总被引:2,自引:0,他引:2
目的:对糯米藤的化学成分进行研究。方法:运用多种色谱方法进行分离纯化,根据理化性质和波谱数据鉴定化合物的结构。结果:从糯米藤95%乙醇提取物的乙酸乙酯萃取部分中分离得到12个化合物,分别签定为异鼠李素(1),山柰酚(2),槲皮素(3),异鼠李素-3-O-α-L-鼠李糖苷(4),山柰酚-3-O-α-L-鼠李糖苷(5),异鼠李素-3-O-β-D-葡萄糖苷(6),山柰酚-3-O-β-D-葡萄糖苷(7),槲皮素-3-O-α-L-鼠李糖苷(8),槲皮素-3-O-β-D-葡萄糖苷(9),异鼠李素-3-O-芸香糖苷(10),山柰酚-3-O-芸香糖苷(11)和槲皮素-3-O-芸香糖苷(12)。结论:所有化合物均为首次从该属植物中分离得到。 相似文献
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糯 米食 疗 的 窍门 糯米粥:糯米 60g,煮粥食,1日 4次,忌食生冷硬食,治妊娠恶阻。 红枣糯米粥:糯米煮粥至极烂,加红枣 10只同煮更好。主治胃寒痛和胃及十二指肠溃疡。 白皮米花:糯米爆成米花 30g,桑白皮30g,水煎服,日 2次,主治糖尿病,烦渴 1不止,尿崩症。 糯米萝卜粥:用糯米 50g ,白萝卜 5片,把白萝卜切成小丁,同糯米一起熬成稀粥,每早一次,连服 月 可治维生素 3 ,缺乏病症。 糯米阿胶煎:糯米 25g,阿胶珠 15g,杏仁、马兜玲、牛蒡子各 10g,灸甘草 5g煎服,可养阴补肺,宁嗽止血,治肺结核。 薏米红枣粥:常食糙糯米粥,或加薏米30g,… 相似文献
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五指毛桃拮抗毒品可卡因的肝毒性作用及其活性成分研究 总被引:3,自引:0,他引:3
目的:研究中药五指毛桃拮抗毒品可卡因的肝脏毒性作用及其活性成分。方法:采用雄性ICR小鼠可卡因中毒模型。将ICR小鼠分别灌胃给予五指毛桃水煎剂,剂量分别相当于生药100,200,300 g·kg-1,皮下注射盐酸可卡因染毒造模,测定血清中丙氨酸转移酶(ALT)、天冬氨酸转移酶(AST)和乳酸脱氢酶(LDH)的活性,留取动物肝脏组织,观察肝组织病理变化并测定肝组织过氧化氢酶(CAT)活性。通过活性追踪法寻找五指毛桃的活性成分,并用相同方法对得到的化学成分抗可卡因肝毒性作用进行验证。结果:五指毛桃水煎剂能够使可卡因染毒小鼠血清转氨酶及过氧化氢酶含量呈剂量相关性降低,且使肝组织有明显病理改变。补骨脂素作为五指毛桃的主要成分,具有拮抗可卡因肝毒性的作用。结论:五指毛桃可明显保护可卡因造成的肝损伤,补骨脂素是其主要活性成分。 相似文献
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目的:建立飞扬草的薄层色谱鉴别方法.方法:以槲皮苷、没食子酸为对照品,采用不同溶剂、不同展开系统进行薄层色谱实验研究.结果:以甲醇为提取溶剂,氯仿-乙酸乙酯-甲醇-甲酸(6:2.5:1.5:0.2)为展开剂,分离效果较好.结论:该方法简便,快捷,专属性强,可用于飞扬草的鉴别. 相似文献
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P B Johnson E M Abdurahman E A Tiam I Abdu-Aguye I M Hussaini 《Journal of ethnopharmacology》1999,65(1):63-69
Euphorbia hirta is locally used in Africa and Australia to treat numerous diseases, including hypertension and edema. The diuretic effect of the E. hirta leaf extracts were assessed in rats using acetazolamide and furosemide as standard diuretic drugs. The water and ethanol extracts (50 and 100 mg/kg) of the plant produced time-dependent increase in urine output. Electrolyte excretion was also significantly affected by the plant extracts. The water extract increased the urine excretion of Na+, K+ and HCO3-. In contrast, the ethanol extract increased the excretion of HCO3- decreased the loss of K+ and had little effect on renal removal of Na+. Acetazolamide, like the water extract, increased urine output and enhanced the excretion of Na+, K+ and HCO3-. The high-ceiling diuretic, furosemide, increased the renal excretion of Na+ and Cl-; but had no effect on K+ and HCO3- loss. This study suggests that the active component(s) in the water extract of E. hirta leaf had similar diuretic spectrum to that of acetazolamide. These results validate the traditional use of E. hirta as a diuretic agent by the Swahilis and Sukumas. 相似文献
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目的:建立飞扬草药材的HPLC色谱指纹图谱.方法:采用HPLC以槲皮素、没食子酸及杨梅苷为对照物,Platisil ODS C18色谱柱(4.6 mm×250 mm,5μm),以乙腈-0.05%磷酸溶液为流动相进行梯度洗脱,流速1.0 mL· min-1,柱温25℃,洗脱时间为60 min,检测波长360 nm.结果:检测了广东不同来源的12批飞扬草药材,确定9个共有色谱峰,相似度评价结果表明,各产地飞扬草药材相似度均>0.90.结论:飞扬草HPLC指纹图谱可用于飞扬草药材的鉴别及质量控制. 相似文献
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据调查考证,蒙医用达克沙主要来源于3科3属17种植物。但《内蒙古蒙药材标准》确定的正品史有其中的多味棘豆Oxytropis myriophylla和硬毛棘豆O.hirta二种。 相似文献
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M C Lanhers J Fleurentin P Cabalion A Rolland P Dorfman R Misslin J M Pelt 《Journal of ethnopharmacology》1990,29(2):189-198
Lyophilised aqueous extract of Euphorbia hirta L. (Euphorbiaceae) has been evaluated for behavioral effects in mice. The extract did not induce any toxic effect when it was administered i.p. and orally. Sedative properties could be confirmed with high doses (100 mg of dried plant/kg, and more), by a decrease of behavioral parameters measured in non-familiar environment tests (activitest and staircase test), whereas anticonflict effects appeared at lower doses (12.5 and 25 mg of dried plant/kg), by an enhancement of behavioral parameters measured in the staircase test and in the light/dark choice situation test. These findings validate the traditional use of E. hirta as a sedative and reveal original anxiolytic properties. 相似文献
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Tona L Ngimbi NP Tsakala M Mesia K Cimanga K Apers S De Bruyne T Pieters L Totté J Vlietinck AJ 《Journal of ethnopharmacology》1999,68(1-3):193-203
Twenty extracts including ten EtOH and ten CH2Cl2 from different parts of nine African medicinal plants used in Congolese traditional medicine for the treatment of malaria, were submitted to a pharmacological test in order to evaluate their effect on P. falciparum growth in vitro. Of these plant species, 14 (70%) extracts including EtOH and CH2Cl2 from Cassia occidentalis leaves, Cryptolepis sanguinolenta root bark, Euphorbia hirta whole plant, Garcinia kola stem bark and seeds, Morinda lucida leaves and Phyllanthus niruri whole plant produced more than 60% inhibition of the parasite growth in vitro at a test concentration of 6 microg/ml. Extracts from E. hirta, C. sanguinolenta and M. morindoides showed a significant chemosuppression of parasitaemia in mice infected with P. berghei berghei at orally given doses of 100-400 mg/kg per day. 相似文献
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Six compounds have been isolated from the leaves of Euphorbia hirta and identified as gallic acid, quercitrin, myricitriu, 3,4-di-O-galloylquinic acid, 2,4,6-tri-O-galloyl-D-glucose and 1,2,3,4, 6-penta-O-galloyl-beta-D-glucose on the basis of physicochemical and spectroscopic methods. 相似文献