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1.
目的 研究新疆产沙戟全草的化学成分.方法 反复硅胶柱色谱,薄层色谱,凝胶柱色谱,波谱分析技术和理化常数对照.结果 分离得到12个化合物,分别鉴定为伞形花内酯(Ⅰ),七叶内酯(Ⅱ),东莨菪素(Ⅲ),秦皮素(Ⅳ),鼠李素(Ⅴ),槲皮苷(Ⅵ),芹菜素-7-O-β-D-葡萄糖苷(Ⅶ),秦皮苷(Ⅷ),木犀草素-7-O-β-D-葡萄糖苷(Ⅸ),山柰酚-3-O-β-D-芦丁糖苷(X),芹菜素-7-O-β-D-芦丁糖苷(Ⅺ)和芦丁(Ⅻ).结论 上述化合物均首次从沙戟属中分离得到.  相似文献   

2.
目的 研究单芽狗脊蕨的化学成分。方法 使用色谱技术对化学成分进行分离纯化,根据理化性质、波谱特征鉴定结构。结果 从其甲醇提取物中分离了12个化合物,分别鉴定为6-苯乙烯基-2-吡喃酮-4-O-β-D-葡萄糖苷(Ⅰ)、坡那甾酮A(Ⅱ)、山柰酚-3-O-α-L-鼠李糖基-7-O-α-L-鼠李糖苷(Ⅲ)、芹菜素-7-O-α-L-鼠李糖基-(1→3)-O-α-L-鼠李糖苷(Ⅳ)、对苯甲酸鼠李糖醇苷(Ⅴ)、1-O-β-D-半乳糖-(6→1)-α-D-半乳糖-2,3-O-月桂酸甘油二酯(Ⅵ)、正丁基-O-α-D-呋喃果糖苷(Ⅶ)、正丁基-O-β-D-呋喃果糖苷(Ⅷ)、正丁基-O-β-D-吡喃果糖苷(Ⅸ)、十六烷醇(Ⅹ)、β-谷甾醇(Ⅺ)、胡萝卜苷(ⅩⅡ)。结论 除化合物Ⅲ、Ⅺ外,其余化合物均为首次从单芽狗脊蕨中分离得到。  相似文献   

3.
独一味化学成分的研究   总被引:11,自引:0,他引:11  
目的:研究独一味Lamiophlomis rotata (Benth.)Kudo.地上部分的化学成分.方法:利用各种色谱方法分离化学成分,通过理化性质和光谱方法确定所分离化合物的结构.结果:从正丁醇部位分离得到3个黄酮类和3个苯乙醇苷类化合物,经鉴定分别为木犀草素-7-O-β-D-吡喃葡萄糖苷(Ⅰ)、芹菜素-7-O-β-D-吡喃葡萄糖苷 (Ⅱ)、木犀草素-7-O-[β-D-呋喃芹菜糖(1→6)]-β-D-吡喃葡萄糖苷(Ⅲ)、forsythoside B(Ⅳ)、verbascoside(Ⅴ)、betonyosides A(Ⅵ).结论:化合物Ⅲ~Ⅵ均为首次从独一味中获得.  相似文献   

4.
[目的]研究齿叶白鹃梅叶中分离得到的黄酮类化合物对α-葡萄糖苷酶的抑制作用。[方法]以96微孔板法测定α-葡萄糖苷酶抑制作用。[结果]齿叶白鹃梅叶中多个黄酮类化合物具有α-葡萄糖苷酶抑制活性,其中木犀草素,木犀草素-7-O-β-D-新橙皮糖苷,芹菜素,芹菜素-7-O-β-D-新橙皮糖苷,槲皮素,槲皮素-3-O-β-D-葡萄糖苷对α-葡萄糖苷酶的抑制活性高于阿卡波糖。[结论]黄酮类化合物可能是齿叶白鹃梅叶具有降糖作用的物质基础。  相似文献   

5.
目的:比分离、鉴定刺五加果实提取物中的化学成分。方法:采用硅胶柱、ODS开放柱和制备液相等色谱方法分离,并通过NMR和MS等谱学技术确定结构。结果:从提取物中分离得到5个黄酮类化合物,分别鉴定为木犀草素(1)、木犀草素-4"-O-β-D-葡萄糖苷(2)、木犀草素-3’-O-β-D-葡萄糖苷(3)、术犀草素-7-O-β-D-葡萄糖苷(4),木犀草素-7,3’-O-β-D-二葡萄糖苷(5)。其中化合物2~5为首次从五加属植物中分离得到。结论:从提取物中分离得到5个黄酮类化合物,分别鉴定为术犀草素(1)、木犀草素-4’-O-β-D-葡萄糖苷(2)、术犀草素-3’-O-β-D-葡萄糖苷(3)、木犀草素-7-O-β-D-葡萄糖苷(4),木犀草素-7,3’-O-β-D-二葡萄糖苷(5)。  相似文献   

6.
目的:对银杏(GinkgobilobaL.)叶的化学成分进行分离、鉴定。方法:采用各种色谱技术进行分离,用IR,UV,MS,1HNMR,13CNMR和2DNMR光谱技术确定化合物的结构。结果:分得8个黄酮醇苷类成分:槲皮素-3-O-β-D-葡糖苷(1),山奈酚-3-O-β-D-葡糖苷(2),芦丁(3),山奈酚-3-O-β-D-芸香糖苷(4),异鼠李素3-O-β-D-芸香糖苷(5),槲皮素-3-O-β-D-葡萄糖基(1-2)-α-L-鼠李糖苷(6),山奈酚-3-O-β-D-葡萄糖基(1-2)-α-L-鼠李糖苷(7),异鼠李素-3-O-β-D-葡萄糖基(1-2)-α-L-鼠李糖苷(8)。结论:化合物8为新化合物。银杏叶中的黄酮醇苷类成分@唐于平@…  相似文献   

7.
目的研究紫花苜蓿的化学成分。方法利用硅胶柱色谱及Sephadex LH-20柱色谱分离紫花苜蓿地上部分的化学成分,通过理化常数和波谱分析鉴定化合物的结构。结果从该植物氯仿和正丁醇萃取部分分得7个化合物,其结构分别鉴定为:芹菜素-7-O-β-D-葡萄糖苷(apigenin-7-O-β-D-glucoside,Ⅰ)、木犀草素-7-O-β-D-葡萄糖苷(luteolin-7-O-β-D-glucoside,Ⅱ)、脲嘧啶核苷(uridin,Ⅲ)、β-甲基-吡喃葡萄糖苷(methyl-α-L-glucopyranoside,Ⅳ)、芹菜素(apigenin,Ⅴ)、苜蓿素(tricin,Ⅵ)、7,4′-二羟基黄酮(7,4′-dihydroxyflavone,Ⅶ)。结论化合物Ⅰ~Ⅳ为首次从本属植物中分离得到。  相似文献   

8.
目的 研究过山蕨(Camptosorus sibiricus Rupr.)中黄酮类化学成分.方法 采用反复硅胶柱色谱法、Sephadex LH-20柱色谱法、高效液相色谱法等进行分离纯化,并通过理化常数测定和光谱分析鉴定了其化学结构.结果 从过山蕨70%乙醇提取物中分离得到6个黄酮类化合物,并鉴定其结构为:山柰酚(1);山柰酚-7.0-α-L-鼠李糖苷(2);山柰酚-3-O-β-D-吡喃葡萄糖基(1→2)-β-D-吡喃葡萄糖苷(3);山柰酚-3-O-β-D-吡喃葡萄糖基(1→2)-β-D-吡喃葡萄糖基-7-O-β-D-吡喃葡萄糖苷(4);山柰酚-3-O-β-D-吡喃葡萄糖基-7-O-β-D-吡喃葡萄糖基(1→2)-β-D-吡喃葡萄糖苷(5);山柰酚-3-O-β-D-吡喃葡萄糖基(1→4)-α-L-鼠李糖基-7-O-α-L-鼠李糖苷(6).结论 化合物2,3,4,5,6均为首次从该属植物中分离得到.  相似文献   

9.
目的:研究亳菊中主要黄酮类化合物对心肌细胞增殖的影响,筛选出亳菊中起心肌细胞保护作用的主要黄酮类化合物。方法:采用传统提取分离方法从亳菊中提取总黄酮,并利用多种柱色谱方法分离得到亳菊中主要的黄酮类化合物,通过光谱分析鉴定其结构。采用MTT法分析评价亳菊中主要的黄酮类化合物促进大鼠心肌细胞H9c2增殖的作用。结果:在亳菊中分离得到金合欢素、芹菜素、木犀草素、金合欢素-7-O-β-D-葡萄糖苷、芹菜素-7-O-β-D-葡萄糖苷、木犀草素-7-O-β-D-葡萄糖苷,6种黄酮类化合物。与正常对照组比较,除芹菜素-7-O-β-D-葡萄糖苷外,其余各黄酮类化合物均显示出对心肌细胞增殖的促进作用,其中木犀草素组和金合欢素-7-O-β-D-葡萄糖苷组OD值明显升高,且与对照组比较,有显著性差异(P0.05)。结论:木犀草素、金合欢素-7-O-β-D-葡萄糖苷具有显著的促进心肌细胞H9c2增殖的作用。  相似文献   

10.
目的 研究细梗胡枝子 Lespedeza virgate全草的化学成分。方法 采用多种色谱技术对其进行分离纯化,根据光谱数据和理化性质鉴定化合物结构。结果 从细梗胡枝子70%乙醇提取物的醋酸乙酯和正丁醇萃取部分分离鉴定了9个化合物,分别为大黄素-8-O-β-D-葡萄糖苷(1)、胡萝卜苷棕榈酸酯(2)、芦丁(3)、山柰酚-3-O-β-D-吡喃葡萄糖-7-O -α-L-吡喃鼠李糖苷(4)、山柰酚-3-O-αL吡喃鼠李糖-7-O-α-L-吡喃鼠李糖苷(5)、山柰酚-3-O-β-D-吡喃半乳糖苷(6)、豆甾醇(7)、β谷甾醇(8)、胡萝卜苷(9)。结论 化合物1~3和6为首次从胡枝子属植物中分离得到,化合物7~9为首次从该种植物中分离得到。  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.
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   

14.
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   

15.
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   

16.
Objective:To investigate the clinical features, pathological characteristics and immunophenotype of solid-pseudopapillary tumor of the pancreas(SPTP). Methods:Nine surgically treated cases of SPTP were retrospectively reviewed. Hematoxylin and Eosin(HE) staining and immunohistochemical staining were used to analyze all cases, and the general clinical data was collected. Results:Six patients were asymptomatic except for a palpable mass. Two patients complained of vague-epigastric pain. One patient appeared jaundice. The tumor was encapsulated and solid tissues alternately with cystic tissues. Histologically, the histological structure of solid portion was pseudopapillary with a fibrovascular core. Tumor cells were uniform and medium-sized which were arranged in sheets ets or nests or pseudopapillary patterns. Immunohistochemical studies demonstrated that SPTP proved positive in vimentin(9/9 cases), AAT(9/9 cases), NSE(9/9 cases), ACT(7/9 cases), CK20(2/9 cases), CgA(1/9 cases), S-100(3/gcases), PR(4/gcases), Syn(3/9 cases) and CD56(5/9cases), negative in CEA and ER. Conclusion:SPTP is a tumor predominantly occurring in young women frequently without special symptoms. This tumor has various characteristical histological patterns with different immunophenotype.  相似文献   

17.
In recent years, the author of this essay has applied electro-acupuncture combined with the trigger point needle-embedding for treatment of primary trigeminal neuralgia in 31 cases, yielding satis- factory results as reported in the following.  相似文献   

18.
Objective: To explore the role of matrix metalloproteinase-1,2 (MMP-1, MMP-2) and tissue inhibitor of matrix metalloproteinases-1 (TIMP-1) in endometriosis. Methods: The eutopic and ectopic endometria from 40 subjects suffering from endometriosis and regular.endometria from 40 subjects (excluding endometriosis) were collected and examined by in situ hybridization technology and western blot assay. Results: Both expressions of MMP-1 and -2 were stronger in ectopic endometrium and eutopic endometrium than in normal endometrium. On the contrary, the expression of TIMP-1 in ectopic endometrium and eutopic endometrium was lower. The differences were significant (P 〈 0.01 ). Moreover, there was no relationship among the expressions of MMP-1, 2 and TIMP-1 in ectopic endometrium. Conclusion: The expressions of MMP-1, 2 and TIMP-1 lose balance and lack of periodic changes in ectopic endometrium , which explains the biological invasive behavior of endometriosis. It was suggested-that regulating the balance between the MMPs and TIMP-1 should be an ideal therapeutic target to endometriosis.  相似文献   

19.
Prof. SHI Da-zhuo, Ph.D., male, was born on March 20, 1960. Prof. SHI entered the Ph.D. program in 1990 at the China Academy of Chinese Medical Sciences under the supervision of Prof. CHEN Ke-ji, majoring in the treatment of cardiovascular diseases. After receiving his Ph.D. degree in 1993, Prof. SHI started working at the Cardiovascular Center in Xiyuan Hospital affiliated to China Academy of Chinese Medical sciences.  相似文献   

20.
《中国结合医学杂志》2008,14(2):159-159
The 6th National General Congress of Chinese Association of Integrative Medicine (CALM) was convened at 19-20, April 2008 in Beijing. Academician CHEN Zhu, the minister of Ministry of Health indicated at the congress that the integration of Chinese and Western medicine is very well in keeping with the situation of our country and the general rule of development in medical science; and as a good integration of Chinese medicine and Western medicine, it is mutually beneficial and advantageous to both of them. Seeing the creativity shown in integrative medical investigation in theoretic and methodological sides, we should and must persist in and develop it.  相似文献   

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