赤芍化学成分的分离与结构鉴定

目的研究毛茛科植物芍药(Paeonia lactifloraPall.)的化学成分。方法应用色谱技术分离纯化,NMR、MS等波谱方法解析化学结构。结果从赤芍中分离出9个化合物,分别鉴定为:芍药苷(Ⅰ),羟基芍药苷(Ⅱ),苯甲酰芍药苷(Ⅲ),芍药新苷(Ⅳ),4-乙基-芍药苷(Ⅴ),邻苯三酚(Ⅵ),二氢芹菜素(Ⅶ),苯甲酸(Ⅷ),β-谷甾醇(Ⅸ)。结论化合物Ⅴ、Ⅵ和Ⅶ为首次从赤芍中分离得到。     

川赤芍化学成分研究

目的 对毛茛科芍药属植物川赤芍(Paeonia veitchii Lynch.)的化学成分进行研究.方法 采用柱色谱分离,通过理化和波谱分析方法鉴定化合物的结构.结果 从川赤芍石油醚和甲醇部分分离得到10个化合物,分别鉴定为:没食子酰芍药苷(galloylpaeoniflorin,Ⅰ),氧化芍药苷(oxypaeoniflorin,Ⅱ),熊果苷(arbutin,Ⅲ),d-儿茶素(d-catechin,Ⅳ),苯甲酸(benzoic acid,Ⅴ),蔗糖(saccharose,Ⅵ),β-谷甾醇亚油酸酯(β-sitosterol linoleate,Ⅶ),胡萝卜苷亚油酸酯(daucostero¨inoleate,Ⅷ),亚油酸(linoleic acid,Ⅸ),棕榈酸(palmitic acid,Ⅹ).结论 化合物Ⅰ、Ⅲ、Ⅶ～Ⅹ为首次从该种植物中分离得到.     

红花化学成分研究(Ⅱ)

目的:研究红花的化学成分.方法:采用溶剂法和柱层析法分离纯化红花中的化学成分,并通过理化性质和光谱数据鉴定所得化合物的分子结构.结果:从红花乙醇提取物中共分得7个单体化合物,经鉴定分别为芹黄素(Ⅰ)、6-羟基山柰酚-3-O-β-D-葡萄糖苷(Ⅱ)、香豆酸(Ⅲ)、对羟基苯甲酰香豆酸酐(Ⅳ)、山柰酚-3-O-β-D-葡萄糖苷(Ⅴ)、cartormin(Ⅵ)和羟基黄色素A(Ⅶ).结论:化合物Ⅳ为红花中首次分离得到.     

HPLC法测定白芍总苷胶囊中芍药内酯苷、芍药苷和苯甲酰芍药苷

目的建立HPLC对白芍总苷胶囊中芍药内酯苷、芍药苷和苯甲酰芍药苷同时定量的分析方法。方法采用HPLC法。色谱柱Zorbax SB-C18色谱柱(250mm×4.6mm,5μm);流动相A为乙腈,B为0.015%磷酸溶液,梯度洗脱程序为0min(8%A),5min(12%A),20min(20%A),25min(20%A);35min(45%A),40min(45%A);检测波长230nm;柱温30℃。结果芍药内酯苷、芍药苷和苯甲酰芍药苷质量浓度与峰面积均呈良好的线性关系。平均回收率芍药内酯苷为96.99%,RSD为0.56%;芍药苷为103.6%,RSD为0.77%;苯甲酰芍药苷为104.2%,RSD为1.35%(n=5)。结论该方法分离度好,简便易行,具有良好的重现性,可用于白芍总苷胶囊中芍药内酯苷、芍药苷和苯甲酰芍药苷的同时测定。     

白芍化学成分研究

目的对白芍进行化学成分研究。方法利用萃取、硅胶柱色谱、反相柱色谱和高效液相色谱法进行分离、制备和纯化,采用波谱技术进行结构确证。结果从白芍中分离鉴定了5个化合物,分别为芍药苷亚硫酸酯(Ⅰ)、芍药苷(Ⅱ)、芍药内酯苷(Ⅲ)、苯甲酰芍药苷(Ⅳ)和1,2,3,4,6-五没食子酰基葡萄糖(Ⅴ)。结论化合物Ⅰ为一新化合物。     

白芍萜苷类成分的快速分离制备及结构鉴定

目的研究白芍中5种萜苷类成分的快速分离制备及结构鉴定。方法采用质谱引导自动纯化系统分离白芍中5种萜苷类成分,应用1H-NMR、13C-NMR、HR-MS波谱法进行结构鉴定;以Ultimate XB-C18柱（22 mm×250 mm,10μm）、乙腈（B）-0.1%甲酸水（A）为流动相,梯度洗脱,流速:20 m L/min,质谱检测用负离子下选择离子监测模式。结果从白芍中分离得到5个萜苷类化合物:氧化芍药苷、芍药苷亚硫酸酯、芍药内酯苷、芍药苷、苯甲酰芍药苷。结论用质谱引导分离纯化效率高,目标性强,可快速获得5个白芍单萜苷类化合物。     

不同炮制方法对白芍质量的影响

目的通过测定白芍及其炮制品中芍药苷、芍药内酯苷及苯甲酰芍药苷含量,探讨不同炮制方法对白芍质量的影响。方法采用高效液相色谱法,Diamonsil C18色谱柱(250mm×4.6mm,5μm),流动相为乙腈(A)-0.1%磷酸溶液(B),梯度洗脱程序为:0min(18%A),5min(18%A),13min(25%A),15min(35%A),18min(45%A),20min(50%A),25min(50%A);检测波长230nm,柱温:25℃。结果生白芍、酒白芍、麸炒白芍中芍药苷含量依次降低,麸炒白芍、酒白芍、生白芍中芍药内酯苷含量依次降低,麸炒白芍、酒白芍、生白芍中苯甲酰芍药苷含量依次降低。结论白芍经炮制后芍药苷含量均有所下降,而芍药内酯苷及苯甲酰芍药苷含量均有所升高。     

四川淫羊藿中两个新的黄酮醇苷

目的 对四川淫羊藿Epimedium sutchuenense的化学成分进行研究。方法 利用硅胶、聚酰胺、Sephadex LH-20、ODS等柱色谱进行分离和纯化,根据化合物的光谱学数据和理化方法鉴定其结构。结果 从四川淫羊藿70%乙醇提取物中分离得到了10个化合物,鉴定其结构为川藿苷A(sutchuenoside A,Ⅰ)、川藿苷B(sutchuenoside B,Ⅱ)、大豆苷元(daidzein,Ⅲ)、宝藿苷-Ⅰ(baohuoside-Ⅰ,Ⅳ)、kaempferide 3-rhamnoside(Ⅴ)、淫羊藿苷(icariin,Ⅵ)、anhydroicaritin-3-O-α-L-rhamnopyranosyl (1→2)-α-L-rhamnopyranoside(Ⅶ)、对羟基苯甲酸(p-hydroxybenzoic acid,Ⅷ)、胡萝卜苷(daucosterol,Ⅸ)、β-谷甾醇(βsitosterol,Ⅹ)。结论 化合物Ⅰ和Ⅱ为新化合物,分别命名为sutchuenoside A和B,俗名为川藿苷A和B,化合物Ⅲ、Ⅴ、Ⅶ、Ⅷ～Ⅹ系首次从该植物中分离得到。     

藏药大籽獐牙菜的化学成分研究

目的研究藏药大籽獐牙菜Swertia macrosperma C.B.Clark全草的化学成分。方法运用硅胶柱层析和高效液相色谱法进行化学成分的分离纯化,通过理化常数和波谱分析鉴定化合物结构。结果从大籽獐牙菜的80%乙醇提取物中分离得到9个化合物,分别鉴定为芒果苷(Ⅰ)、1-羟基-3,7,8-三甲氧基口山酮(Ⅱ)、1,8-二羟基-3,7-二甲氧基口山酮(Ⅲ)、1,7-二羟基-3,8-二甲氧基口山酮(Ⅳ)、1,5,8-三羟基-3-甲氧基口山酮(Ⅴ)、1,7,8-三羟基-3-甲氧基口山酮(Ⅵ)、獐牙菜苦苷(Ⅶ)、龙胆苦苷(Ⅷ)、獐牙菜苷(Ⅸ)。结论上述化合物Ⅳ、Ⅵ～Ⅸ为首次从大籽獐牙菜中分离得到。     

心叶淫羊藿化学成分研究

目的 研究心叶淫羊藿Epimedium brevicornum 的化学成分。方法 通过多种色谱手段,对淫羊藿的叶子进行成分分离,通过理化方法和化合物波谱数据进行结构鉴定。 结果 分离得到10个化合物,分别鉴定为对硝基乙基苯酚(Ⅰ)、毛柳苷(沙立苷,Ⅱ)、5,7,4′-三羟基-8,3′-二异戊烯基黄酮(Ⅲ)、山柰酚-3-O-α-L-鼠李糖苷(Ⅳ)、宝藿苷Ⅰ(Ⅴ)、箭藿苷B(Ⅵ)、鼠李糖基淫羊藿次苷(Ⅶ)、7,3′,4′,5′-四羟基黄酮醇(Ⅷ)、去甲基淫羊藿素(Ⅸ)、1-O-β-葡萄糖苷-1,4-二羟基-2-(3′-羟基-3′-甲基丁基)苯(Ⅹ)。 结论 化合物Ⅰ、Ⅱ、Ⅳ、Ⅹ为首次从本属植物中分离得到,化合物Ⅵ为首次从本植物中分离得到。     

Value of D-Dimers in patients with acute aortic dissection

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.     

Research of combined liver-kidney transplantation model in rats

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.     

BLOOD PRESSURE CHANGE WITH AGE IN SALT-SENSITIVE TEENAGERS

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.     

Development on Adjustable Calibration Marker for Shock Wave Focus

Shock wave lithotripsy （SWL） is a treatment of choice for upper urinary stones. However, this procedure is inappropriate for obese patients because the focus is often unable to reach the target owing to the limited focal distance in shock wave source. Although treating such patients in a blast path may increase the application length of shock wave source, it＇s difficult to find this path on the lithotripter monitor. For this reason, we invented an adjustable calibration marker in order to set an effective focus in the shock wave hath.     

Study on the TCM Pathogenesis of Angiopathic Complications of Type II Diabetes

Excess production of reactive oxygen species(ROS)of mitochondrion mediated by hyperglycemia is the common pathogenesis of angiopathic complications of diabetes.TCM holds that the damp from the dysfunction of spleen.kidney and liver is the causative factor of complications of diabetes.This is similar to the mechanism of Ros resulting in angiopathic complications of diabetes.When the angiopathic complications of type II diabetes mellitus(T2DM)are difierentiated as caused by turbid damp in TCM can be explained as ROS.Since the obstruction of pathogenic damp in channels and collaterals is said to be the main pathogenesis,the treating principle should be dissolving the damp to remove the obstruction.     

Leptin, Ghrelin and TNF-α before and after Hypo-caloric Traditional Chinese Diet and Auricular Acupuncture

INTRODUCTION Obesity is a complex emergent problem, which can be possibly solved not only by the diet but also by the life style and promotion of a constant physical exercise. 1, 2 No doubt careful attentions must be given to the nutritional condition of obese people, the dietary habits, the somatic build (i.e. distribution of fat mass) and the organic functions linked to formation of the fat mass. All the parameters should be constantly monitored before, during and after a diet treatment. 3, 4, 5     

Relationship between Dysglycemia and Carotid Atherosclerosis in Tibetan Population

People with dysglycemia are at high risk for atherosclerotic diseases. This study aims at investigating the atherosclerotic vascular damage in dysglycemia and its metabolic origin in Tibetan population.     

APPLICATION OF LORNOXICAM TO PATIENT-CONTROLLED ANALGESIA IN PATIENTS UNDERGOING ABDOMINAL SURGERIES

FOR anesthesiologis s ,treatingpostoperativepainhas alwaysbeen a problem.Althoughopioidshave been provedtobe effective,theirsideeffectscouldnotbeignored.With thedevelopmentofscienceand pharmacology,many drugs with aspectsof satisfactoryanalgesicefficacyand couldbe welltoleratedby patientshave been developed.And lornoxicamisone of them, which isa non-steroidalanti-inflammatorydrug (NSAID ), with analgesic, anti-infl-ammatory,andantipyreticproperties.Itseliminationhalf-time(3 to 5 hours) isle…     

安心颗粒对急诊经皮冠状动脉介入术后生活质量影响的研究

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.     

The comparative studies of the influences of Urapidil and Nicardipine on sino-atrial node function, atrio-ventricular node function and hemodynamics

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.