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1.
黄连花化学成分研究   总被引:1,自引:0,他引:1  
目的 研究黄连花全草的化学成分。方法 经柱层析分离。理化常数和光谱分析鉴定化合物结构。结果 分离得到12个化合物,分别为香豆酸(Ⅰ),间二羟基苯甲酸(Ⅱ),槲皮素(Ⅲ),槲皮素-3-O-β-D-葡萄糖苷(Ⅳ),槲皮素-3-O-β-D-葡萄糖醛酸乙酯(Ⅴ),氯原酸乙酯(Ⅵ,氯原酸正丁酯(Ⅶ),胡萝卜苷(Ⅷ),槲皮素-3-O-β-D-半乳糖苷(Ⅸ),甲基-O-β-D-葡萄糖苷(Ⅹ),异鼠李素-3-O-芸香糖苷(Ⅺ),芦丁(Ⅻ)。结论 Ⅰ、Ⅱ、Ⅴ、Ⅸ、Ⅺ均首次从本属植物中得到,Ⅵ、Ⅶ为首次分得的天然化合物。  相似文献   

2.
目的 研究苏门白酒草的化学成分。方法 运用溶剂萃取、硅胶和聚酰胺柱色谱、重结晶等方法分离纯化,并通过核磁共振谱鉴定化合物的结构。结果 从苏门白酒草中分离鉴定了12个化合物:芹菜素-7-O-β-D-葡萄糖醛酸苷-6″-甲酯(Ⅰ)、芹菜素-7-O-β-D-葡萄糖醛酸苷(Ⅱ)、金圣草黄素-7-O-β-D-葡萄糖醛酸苷-6″-甲酯(Ⅲ)、金圣草黄素-7-O-β-D-葡萄糖苷(Ⅳ)、4′-羟基黄芩素(Ⅴ)、金合欢素-7- O-芸香糖苷(Ⅵ)、金圣草黄素(Ⅶ)、菠甾醇-3-O-β-D-葡萄糖苷(Ⅷ)、菠甾醇-3-O-β-D-葡萄糖苷-6′-O-棕榈酸酯(Ⅸ)、( 2S,3S,4R,8E)-8,9-二脱氢植物鞘氨醇(2′R )-2′-羟基二十二、二十三、二十四、二十五烷酰胺(Ⅹ)、天师酸(Ⅺ)、菠甾醇(ⅩⅡ)。结论 化合物Ⅰ~Ⅺ为首次从该植物中分离得到,化合物Ⅰ~Ⅶ和Ⅸ~Ⅺ为首次从白酒草属植物中分离得到。  相似文献   

3.
从何首乌(PolygonummultiflorumThunb.)的根中分离出11个化合物,根据光谱学分析分别鉴定为:大黄酚(chrysophanol,Ⅰ)、大黄素甲醚(physcione,Ⅱ)、大黄素(emodin,Ⅲ)、ω-羟基大黄素(citreorosein,Ⅳ)、大黄酚8-O-β-D-吡喃葡萄糖苷(chrysophanol8-O-β-D-glucopyranoside,Ⅴ)、大黄素甲醚8-O-β-D-吡喃葡萄糖苷(Physcione8-O-β-D-glucopyranoside,Ⅵ)、大黄素8-O-β-D-吡喃葡萄糖苷(emodin8-O-β-D-glucopyranoside,Ⅶ)、决明酮8-O-β-D-吡喃葡萄糖苷(torachrysone8-O-β-D-glucopyranoside,Ⅷ)、2,3,5,4′-四羟基芪2-O-β-D-吡喃葡萄糖苷(2,3,5,4′-tetrahydroxystilbene2-O-β-D-glucopyranoside,Ⅸ)、没食子酸甲基酯(methylgallate,Ⅹ)和吲哚-3-(L-α-氨基-α-羟基内酸)甲酯[Indole-3-(L-α-amino-α-hydroxypropionicacid)methylester]。其中,化合物Ⅺ为新的天然产物。上述蒽醌和萘类化合物以及芦荟大黄素(aloe-emodin,Ⅻ)、大黄酸(rhein,)、芦荟大黄素8-O-β-D-吡喃葡萄糖苷(aloe-emodin8-O-β-D-glucopyranoside,)、大黄酚8-O-β-D-(6′-O-丙酰基)吡喃葡萄糖苷(chrysophanol8-O-β-D-(6′-O-malonyl)glucopyra-  相似文献   

4.
目的 研究巴天酸模中的化学成分。方法 通过硅胶柱层析,从巴天酸模Rumex patientix L.中分离到16个化合物,经波谱分析,化学方法及与己知化合物对照,鉴定其结构。结果 分别鉴定为豆甾醇(I),α-细辛醚(Ⅱ),大黄素甲醚(Ⅲ),大黄素-1,6-二甲醚(IV),大黄素(V),大黄酚(VI),xanthorin-5-nethylether(Ⅶ),牛蒡子苷(Ⅷ),3-羟基牛蒡子苷(IX),3-甲氧基牛蒡子-4“-o-β-D-木糖苷(X),大黄素-8-O-β-D-葡萄糖苷(XI),山奈酚(Ⅻ),槲皮素-3-O-β-D-葡萄糖苷(XⅢ),异鼠李素(XⅣ),山奈素-3-O-β-D-葡萄糖苷(XV),5-羟基-4‘-甲氧基黄酮-7-O-β-芸香糖苷(XVI)。结论 化合物X为新化合物。  相似文献   

5.
目的 对蔷薇科悬钩子属植物掌叶覆盆子(Rubus chingii Hu)的果实进行化学成分研究.方法 对掌叶覆盆子果实的甲醇提取物进行柱色谱,根据化合物的理化性质和波谱数据鉴定结构.结果 分离得到7个已知化合物,分别为山柰酚(Ⅰ)、槲皮素(Ⅱ)、山柰酚-3-O-β-D-吡喃葡萄糖苷(Ⅲ)、槲皮素-3-O-β-D-吡喃葡萄糖苷(Ⅳ)、山柰酚-3-O-β-D-吡喃葡萄糖醛酸甲酯(Ⅴ)、对羟基苯甲酸(Ⅵ)、三十一烷(Ⅶ).结论 除了化合物Ⅵ,其他化合物均为首次从本植物中分离得到.  相似文献   

6.
目的:研究毛大丁草Gerbera piloselloides根的化学成分。方法:采用硅胶、大孔吸附树脂层析法分离纯化,薄层色谱及光谱法进行结构鉴定。结果:从乙醇提取物中的正丁醇萃取部分分得6个化合物,其结构鉴定为熊果苷(Ⅰ),瑞香素-8-O-葡萄糖苷(Ⅱ),2,6-二甲氧基-4-羟基苯酚-1-O-葡萄糖苷(Ⅲ),1,4-二羟基-2,6-二甲氧基苯-4-O-葡萄糖苷(Ⅳ),丁香酸葡萄糖苷(Ⅴ),marmesinin(Ⅵ)。结论:Ⅱ-Ⅵ首次从该属植物中分离得到。  相似文献   

7.
目的 研究田基黄(Hypericum japonicum Thunb.)的化学成分.方法 运用多种色谱技术对田基黄的化学成分进行系统研究,根据光谱数据鉴定化合物结构.结果 分离鉴定了12个化合物,分别为:异巴西红厚壳素(Ⅰ),槲皮素(Ⅱ),山柰酚(Ⅲ),槲皮素-7-O-α-L-鼠李糖苷(Ⅳ),槲皮苷(Ⅴ),异槲皮苷(Ⅵ),槲皮素-3-O-β-D-葡萄糖醛酸苷(Ⅶ),田基黄双(口山)酮(Ⅷ),3,8″-biapigenin(Ⅸ),白桦酸(X),豆甾醇(Ⅺ),豆甾醇-3-O-β-D-葡萄糖苷(Ⅻ).结论 化合物Ⅶ,Ⅸ,Ⅻ为首次从该植物中分离得到.  相似文献   

8.
木芙蓉叶化学成分研究   总被引:3,自引:0,他引:3  
目的:研究木芙蓉叶Hibiscus mutabilis的化学成分。方法:采用硅胶柱、C18反相柱、聚酰胺柱色谱分离纯化,通过理化常数测定和光谱分析鉴定化合物的结构。结果:从木芙蓉叶中分离得到10个化合物。根据波谱分析和理化数据,鉴定出其中9个化合物分别为:二十四烷酸(tetracosanoic acid,I)、β-甾醇醇(β-sitosterol,Ⅱ),胡萝卜苷(daucosterol,Ⅲ)、水杨酸(salicylic acid,Ⅳ)、大黄素(emodin,V)、芸香苷(rutin,Ⅵ)、山奈酚-3-O-β-芸香糖苷(kaempferol-3-O-β-rutinoside,Ⅶ)、山奈酚-3-O-β-刺槐双糖苷(kaempferol-3-O-β-robinobinoside,Ⅷ)及山奈酚-3-O-β-D(6-E-对羟基桂皮酰基)-葡萄糖苷[kaempferol-3-O-β-D-(6-E-p-hydroxycinnamoyl)-glucopyranoside,Ⅸ]。结论:除Ⅱ和Ⅵ,其他化合物均为首次从该植物中分离得到。  相似文献   

9.
中药白及化学成分研究(Ⅱ)   总被引:9,自引:0,他引:9  
目的:研究中药白及极性部位的化学成分。方法:用多种层析方法分离正丁醇部分的萃取物,根据理化性质和波谱分析,鉴定化合物结构。结果:分离并鉴定5个化合物结构,分别是milkitarine(1);7-羟基-4-甲氧基菲-2-β-D葡萄糖苷(7-hydroxy-4-methoxyphenanthrene-2-O-β-D-glucoside)(2);4-甲氧基菲-2,7-O-β-D二葡萄糖苷(4-methoxyphenanthrene-2-7-O-β-D-digluocoside);7-羟基-2,4-二甲氧基菲-3-O-β-D-葡萄糖苷(7-hydroxy-2,4-dimethoxyphenanthrene-3-O-β-D-glucoside);(4);3′-羟基-5-甲氧基联苄-3-O-β-D吡喃葡萄糖苷(3′-hydroxy-5-methoxybibenzyl-3-O-β-D-glucopyranoside)(5)。结论:化合物1和5首次从该植物中分离得到。  相似文献   

10.
从土茯苓Smilaxglabra根茎中分得9个化合物,经化学方法和光谱分析分别鉴定为槲皮素(Ⅱ),上茯苓甙(Ⅲ),琥珀酸(Ⅳ),棕榈酸(Ⅴ),豆甾醇-3-O-β-D-吡喃葡萄糖甙(Ⅵ),胡萝卜甙(Ⅶ)及豆甾醇和谷甾醇的混合物(Ⅷ,Ⅸ)(化合物Ⅰ另文报道)。Ⅲ为一新化合物,其化学结构为5,7-二羟基色原酮-3-O-α-L一鼠李糖甙,命名为土茯苓甙。Ⅵ和Ⅷ为首次从该植物中分得。  相似文献   

11.
Objective: To evaluatel the value of D-dimers in patients with acute aortic dissection (AAD). Methods: This study consisted of 16 patients with AAD and 27 non-AAD patients. Serum D-dimets were measured by Sta-Liatest D-DI immunoturbidimetric assay. Results: D-dimer level was higher (P < 0.001) in patients with AAD(7.91 ± 5.52 μg/ml) than that in non- AAD group(1.57±1.24 μg/ml). D-dimer was positive (>0.4 μg/ml) in all patients with AAD and in 10 control group patients (37%). Among patients with acute AAD, D-dimers tended to be higher in Stanford A than in Stanford B (8.67 ± 4.31 μg/ml vs. 3.24±1.27 μg/ml, P <0.01). D-dimer values tended to be higher in more extended disease(3.84 ± 1.65 μg/ml, 8.57 ± 3.58 μg/ml and 11.87 ± 5.69 μg/ml in thoracic aorta, thoracic and abdominal aorta, thoracic and abdominal aorta and iliacal arteries, respectively, P < 0.05 for both 8.57 ± 3.58 and 11.87 ± 5.69 vs. 3.84 ± 1.65 ). Including the control group into the analysis, we found a sensitivity of 100%, a negative predictive value of 100%, and a specificity of 66% and a positive predictive value of 64% for D-dimer in diagnosis of AAD in our patients with suspected AAD. Conclusion: D-dimer was elevated in patients with AAD. A negative D-dimer test result could be useful in excluding AAD.  相似文献   

12.
Objective: To set up a simple and reliable rat model of combined liver-kidney transplantation. Methods: SD rats served as both donors and recipients. 4℃ sodium lactate Ringer's was infused from portal veins to donated livers,and from abdominal aorta to donated kidneys, respectively. Anastomosis of the portal vein and the inferior vena cava (IVC) inferior to the right kidney between the graft and the recipient was performed by a double cuff method, then the superior hepatic vena cava with suture. A patch of donated renal artery was anastomosed to the recipient abdominal aorta. The urethra and bile duct were reconstructed with a simple inside bracket. Results: Among 65 cases of combined liver-kidney transplantation, the success rate in the late 40 cases was 77.5%. The function of the grafted liver and kidney remained normal. Conclusion: This rat model of combined liver-kidney transplantation can be established in common laboratory conditions with high success rate and meet the needs of renal transplantation experiment.  相似文献   

13.
Objective To observe blood pressure change with age in salt-sensitive teenagers whose salt sensitivity were determined by repeated testing.Methods Salt sensitivity was determined through intravenous infusion of normal saline combined with volume-depletion by oral diuretic furosemide in 55 teenagers. After five years, salt sensitivity was re-examined and subject blood pressure was followed up. Blood pressure changes in salt-sensitive teenagers were compared to that of non-salt sensitive teenagers over five years.Results After 5 years, the repetition rate of salt sensitivity determined by intravenous saline loading is 92.7%. In teenagers with salt sensitivity on the baseline, both the systolic blood pressure increments and increment rates were much higher than non-salt sensitive teenagers (12.7±12.1 mmHg vs. 2.8±5.2 mmHg, P< 0.01; 12.2%± 12.0% vs. 2.5% ±4.4%, P< 0.001,respectively). There was a similar trend for diastolic blood pressure (8.4 ± 6.4 mmHg vs. 3.7 ± 6.4 mmHg, P = 0.052; 13.2% ±10.6 % vs. 6.8%± 10.1%, P = 0.053, respectively).Conclusions Salt sensitivity determined by intravenous saline loading showed good reproducibility. Blood pressure increments with age were much higher in salt-sensitive teenagers than non-salt sensitive teenagers, especially in terms of systolic blood pressure.  相似文献   

14.
目的:评价使用安心颗粒对急诊经皮冠状动脉介入术(PPCI)术后生活质量的影响.方法:将160例接受PPCI的急性ST段抬高型心肌梗死患者随机分为安心颗粒组(术前顿服安心颗粒8.8g,术后安心颗粒4.4 g/次,每日2次)和对照组(仅接受基础药物治疗).所有患者均服用阿司匹林、氯吡格雷和阿托伐他汀.分别在入院时、出院前1d、出院后180 d时,应用心肌梗死多维度量表(MIDAS)、中文版SF-36评价量表对患者生活质量评分.并观察术后30 d以内的出血并发症、血小板减少症发生情况.结果:入院时和出院前1d,两组患者的心肌梗死MIDAS、SF-36量表评分比较无差异(P>0.05);出院后180 d时,与对照组比较,安心颗粒组MIDAS、SF-36评分明显减低(P<0.05);组内与入院时比较,两组出院前1d、出院后180 d时,MIDAS、SF-36评分均降低(P<0.05).两组患者在随访期间均无大量出血、少量出血、重度和极重度血小板减少症发生,安心颗粒组有4例、对照组有7例发生不明显出血(P>0.05).两组发生轻度血小板减少症的患者数比较无差异(P>0.05).结论:PPCI使用安心颗粒,能改善急性ST段抬高型心肌梗死患者的生活质量,且不增加出血风险.  相似文献   

15.
Objective:To investigate the influences of urapidil and nicardipine on rabbit sinus function,atrio-ventricular node function and hemodynamics.Methods:Thirty-two Angora's rabbits were selected and randomly divided into four groups.U1 group:urapidil 0.25 mg/kg;U2 group:urapidil 0.5 mg/kg;N1 group:nicardipine 10 μg/kg;N2 group:nicardipine 20 μg/kg.All these medicine were administrated within 30 seconds.Measurements were taken before and after the administration of urapidil or nicardipine for the following data:mean blood pressure(MAP),heart rate(HR),sino-atrial conduction time(SACT),maximal sinoatrial recovery time(SNRTmax)corrected sinus node recovery time(CSNRT),index of sinus node recovery time(SNRTI),Wenckebach A-V conduction frequency (WB),and P-R interval.Results:Significant MAP and HR changes were identified in all of the four groups before and after administration of both urapidil and nicardipine.No significant changes could be found in the rest of the parameters.Intergroup analysis showed that SACT and CSNRT of N1 and N2 groups were shorter than those of the U2 group(P<0.01);the MAP decreased(P<0.01)and the HR increased drastically(P<0.01).Conclusions:Neither urapidil(0.25 mg/kg,0.5 mg/kg)nor nicardipine(10μg/kg,20μg/kg)has any significant influence on rabbit sinus function or rabbit atrio-ventricular node function.Nicardipine could be a better choice than urapidil for parafunctional sinus node patients.  相似文献   

16.
Objective:To investigate the gene expression of osteoprotegerin(OPG) and osteoclast differentiation factor(ODF) in the bone tissue of patients with hip fracture due to osteoporosis. Methods:OPGmRNA and ODFmRNA in the bone tissue in 50 cases of osteoporosis sufferers(over 50 years old) with hip fracture(Observer Group) and 30 cases of hip facture sufferers with no osteoporosis(Control group) were analyzed with the Semi-Quantitative RT-PCR method. Results:The mRNA expressed of ODF, OPG were both high in the patients with hip fracture. In the control group, the expression of OPG mRNA was observed, while the expression of ODF mRNA was very slight. Conclusion:Aged patients contained all signals including OPG, ODF that are essential for inducing osteoclastogenesis and promoting bone resorption.  相似文献   

17.
Objective:To probe into the influence of changes of ovarian hormones on the pathogenesis of the specific sub-type premenstrual syndrome(PMS)and reveal partial microcosmic mechanisms of adverse flow of liver-qi.Methods:Estradiol(E2)and progesterone(P)levels in serum were determined at different phases of menstrual cycle by radioimmunoassay.Results:In the group of PMS with adverse flow of liver-qi.the secretive peak value Of E2 and P at the follicular phase significantly decreased,and the secretive peak value at the luteal phase did not come into being.Conclusions:Low E2 and P secretive peak at the follicular phase and absence of secretive peak at the luteal phase is one of the microcosmic mechanisms of PMS with adverse flow of liver-qi.One of the pathophysiologic mechanisms of specific sub-type PMS is probably the continuous low level of E2and P.  相似文献   

18.
Real-time three-dimensional echocardiography (RT3DE)is a new ultrasound technique that enables dynamic threedimensional visualization and quantification of the heart in real time. Investigation of feasibility and methodology of RT3DE in determining left ventricular (LV) and right ventricular (RV) volumes, RT3DE was performed in 35 normal adults using Philips SONOS 7500 system with a 2-4 MHz matrix array transducer. The 60°×60° "pyramid" volume database was obtained and analyzed on a TomTec echo workstation. Both LV and RV volumes were calculated with four 3DE methods (i.e. apical 2, 4, 8, and 16-plane) through manually tracing ventricular endocardial borders in end diastole and end systole. Stroke volumes were then calculated. LV volume was also measured by 2DE Simpson's rule using GE VIVID 7 ultrasound machine.  相似文献   

19.
Increasing maternal age is the only etiological factor unequivocally linked to Down's syndrome in humans. The occurrence rate of newborns with Down's syndrome is about 1/220 in women over 35 years old. However, the occurrence rate in embryos fertilized in vitro, of the elder woman is unclear. Using FISH we screened the number of chromosome 21 in preimplanted embryos of 5 elderly women (average age, 38.4 years) to study the feasibility and necessity of screening trisomy 21 in embryos in patients over 35 years old at the in vitro fertilization (IVF) center.  相似文献   

20.
A clinical guideline for the therapeutic interventions of integrative medicine may be defined as a written document which states a series of recommendations on therapeutic interventions of integrative medicine for a special disease or condition. The guideline may provide assistance to medical professionals in making clinical decisions aimed at improving the clinical outcome of patients and reducing the costs of medical care(~'4~. Recommendations issued by a guideline should be based on the best available evidence in both Western and Chinese medicine. For fulfilling this purpose, the development of clinical guidelines for therapeutic interventions in the field of integrative medicine should follow scientific principles and undergo a rigorous processes.  相似文献   

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