RP—HPLC法测定黄花倒水莲中两种Shan酮的含量

目的：建立反相高效液相色谱法测定黄花倒水莲中两种Shan酮的含量。方法：采用Dikma Diamonsil C18柱，甲醇－水（65：35）为流动相，流速0.9ml/min,996二极管阵列检测器（DAD），检测波长为245nm，对黄花倒水莲中两种Shan酮含量进行测定。结果：Shan酮1，2，3－三甲氧基Shan酮和1－甲氧基－2，3－亚甲二氧基Shan酮的重复性试验RSD分别为0．96％和2．6％；平均回收率分别为99．40％和100．8％。结论：该方法操作简便，易行，线性关系良好。     

RP-HPLC法测定黄花倒水莲中两种酮的含量

目的 :建立反相高效液相色谱法测定黄花倒水莲中两种口山酮的含量。方法 :采用 Dikma DiamonsilC1 8柱 ,甲醇 -水 ( 6 5∶ 35 )为流动相 ,流速 0 .9ml/min,996二极管阵列检测器 ( DAD) ,检测波长为 2 4 5 nm,对黄花倒水莲中两种口山酮含量进行测定。结果 :口山酮 1 ,2 ,3-三甲氧基口山酮和 1 -甲氧基 -2 ,3-亚甲二氧基口山酮的重复性试验 RSD分别为 0 .96 %和 2 .6 % ;平均回收率分别为 99.4 0 %和 1 0 0 .8%。结论 :该方法操作简便 ,易行 ,线性关系良好     

黄花倒水莲的化学成分

目的 研究远志科远志属植物黄花倒水莲Polygala fallax根的化学成分。方法 采用硅胶柱色谱、Sephadex LH-20柱色谱以及重结晶等方法,分离纯化黄花倒水莲的化学成分,通过波谱方法对结构进行解析和鉴定。结果 确定了6个化合物的结构,分别为3-O-β-D-glucopyranosyl senegenic acid(Ⅰ)、远志皂苷(tenuifolin,Ⅱ)、细叶远志皂苷元(presenegenin,Ⅲ)、1,7-二甲氧基-2,3-亚甲二氧基口山酮(1,7-dimethoxy-2,3-methylenedioxy xanthone,Ⅳ)、芥子酸(sinapinic acid,Ⅴ)、阿魏酸(ferulic acid,Ⅵ)。结论 化合物Ⅲ～Ⅵ为首次从该种植物中分离得到,化合物Ⅰ为首次从该植物中发现的远志酸型皂苷,且为新化合物,命名为黄花倒水莲皂苷A(fallaxsaponin A)。     

马蔺地下部分的化学成分

目的:研究鸢尾科鸢尾属植物马蔺(Iris lactea Pall.var.chinensis(Fisch.)koidz.)地下部分的化学成分.方法:采用70%乙醇提取,硅胶柱层析分离及重结晶等方法分离其化学成分,通过波谱及化学方法进行结构鉴定.结果:分离并鉴定了10个化合物,分别为:5-羟基-7-甲氧基黄酮(tectochrysin,Ⅰ)、5,2'-二羟基-6,7-亚甲二氧基二氢黄酮(5,2'-dihydroxy-6,7-methylenedioxyflavanone,Ⅱ)、5,7-二羟基-6,2'-二甲氧基异黄酮(5,7-dihydroxy-6,2'-dimethoxyisoflavone,Ⅲ)、4',5-二羟基-6,7-二甲氧基异黄酮(4',5-dihydroxy-6,7-dimethoxyisoflavone,Ⅳ)、4',5,7-三羟基-6-甲氧基异黄酮(tectorigenin)(4',5,7-trihydroxy-6-methoxyisoflavone,Ⅴ)、5,3'-二羟基2'-甲氧基-6,7-亚甲二氧基异黄酮(5,3'-dihydroxy-2'-methoxy-6,7-methylenedioxyisoflavone,Ⅵ)、5,2'-二羟基-6,7-亚甲二氧基异黄酮(5,2'-dihydroxy-6,7-methylenedioxyisoflavone,Ⅶ)、irisoid D(Ⅷ)、irisoid A(Ⅸ)和十七烷酸(heptadecanoic acid,X).结论:这些化合物均为在该植物中首次分得,其中化合物Ⅵ为本属植物中首次发现.     

红直獐牙菜的苷类成分

目的：研究红直獐牙菜的苷类成分。方法：采用硅胶柱层析分离和Sephadex LH20纯化,经理化性质和波谱分析鉴定基化学结构。结果：从红直獐牙菜的水溶性部分得到7个化合物,他们分别为8－O－β－D-吡喃葡萄糖－1,5－二羟基－3－甲氧基Shan酮（I）、8－O－β－D－吡喃葡萄糖－1,3,5－三羟基Shan酮（Ⅱ）、1－O－β－D－吡喃葡萄糖－3,7,8－三羟基Shan酮（Ⅲ）、异荭草苷（Ⅳ）、落干酸（V）、龙胆苦苷（Ⅵ）和β－龙胆二糖（Ⅶ）。结论：化合物Ⅲ、Ⅳ、V和Ⅶ为首次从该植物中分得。     

石蝉草化学成分的研究

目的研究草胡椒属植物石蝉草Peperomiadindygulensis的化学成分。方法用色谱法分离化合物,根据理化性质和光谱数据鉴定结构。结果从石蝉草的氯仿部位分离得到了8个化合物,分别鉴定为:二(2-甲氧基-4,5-亚甲二氧基)-苯基酮(Ⅰ)、草胡椒素B(peperomin B,Ⅱ)、草胡椒素C(peperomin C,Ⅲ)、5-羟基-4′,7,8-三甲氧基黄酮(Ⅳ)、5-羟基-3′,4′,7,8-四甲氧基黄酮(Ⅴ)、5,3′-二羟基-4′,7,8-三甲氧基黄酮(Ⅵ)、β-谷甾醇(Ⅶ)、正十六酸(Ⅷ)。结论化合物Ⅰ为新化合物,命名为石蝉草素(dindygulensin)。除化合物Ⅴ外,其余成分均为首次从该种植物中分离得到。     

藏药花锚中新化学成分的鉴定

目的 分离并鉴定高原植物椭圆叶花锚Halenia elliptica全草中的化学成分。方法 采用元素分析（EA），核磁共振波谱（NMR），质谱（MS），红外光谱（IR），紫外光谱（UV），差示扫描量热（DSC）等分析方法，测定其理化常数和波谱数据，鉴定其化学结构，结果 确证从椭圆叶花锚中所得到的两种针状结晶化合物，分别为1-羟基-3，7，8-三甲氧基Shan酮（1-hydroxy-3,7,8-trimethoxyxanthone)和1，7-二羟基-3，8-二甲氧基Shan酮（1，7-dihydroxy-3,8-dimethoxyxanthone)。结论 上述两种Shan酮衍生物为首次从藏药花锚中分离得到。     

准葛尔鸢尾叶的化学成分

目的：研究鸢尾科鸢尾属植物准葛尔鸢尾（Iris sonata Schrenk）叶的化学成分。方法：采用70％乙醇提取，硅胶柱反复层析分离及重结晶等方法从准格尔鸢尾叶中分离其化学成分，通过波谱及化学方法进行结构鉴定。结果：分离并鉴定了18个化合物，其中3个黄酮类化合物：5-羟基-7-甲氧基黄酮（tectochrysin，Ⅰ），5，7-二羟基-8-甲氧基黄酮（wogonin，Ⅱ），蒙花苷（acacetin-7-O-α-L-rhamnopyranosyl-（1→6）-β-D-glucopyranoside，Ⅲ）；2个黄酮醇类化合物：良姜素（izapinin，Ⅳ），异鼠李素-葡萄糖苷（isorhamnetin-7-O-β-D-glucoside，Ⅴ）；1个二氢黄酮类化合物：5，2＇-二羟基-6，7-亚甲二氧基二氢黄酮（Ⅵ）；4个异黄酮类化合物：分别为：5，7-二羟基-6，2＇-二甲氧基异黄酮（Ⅶ），4’，5，7-三羟基-6-甲氧基异黄酮（tectorigenin，Ⅶ），鸢尾苷（tectoridin，Ⅸ），4’-羟基-5-甲氧基-6，7-亚甲二氧基异黄酮（irisolone，Ⅹ）；3个为peltogynoids型化合物：irisoid A（Ⅺ），irisoid B（Ⅻ），irisoid D（Ⅹ Ⅲ）；另外5个化合物为三十一烷醇n-hentriacontanol（Ⅹ Ⅳ），胡萝卜苷（daucosterol，Ⅹ Ⅴ），豆甾醇（stigmasterol，Ⅹ Ⅵ），nonadecanoic acid（ⅩⅦ）和谷甾醇（β-sitosterol，ⅩⅧ）。结论：这些化合物均为首次从该植物中分得，其中化合物Ⅲ．Ⅳ和Ⅴ为本属植物中首次发现。     

黄花獐牙菜的化学成分研究

目的 研究黄花獐牙菜 Swertia kingii的化学成分。方法 用各种色谱柱方法进行分离纯化,根据理化性质和波谱解析鉴定其化学结构。结果 从黄花獐牙菜中分离到15个化合物,鉴定了其中的11个化合物,分别为β-谷甾醇(β-sitosterol,1)、1,8-二羟基-3,7-二甲氧基口山酮(甲基獐牙菜宁,methylswertianin,2)、1,7-二羟基-3 ,8二甲氧基口山酮(gentiacaulein,3)、1,8-二羟基-3,5-二甲氧基口山酮(印度獐牙菜素,swerchirin,4)、8-O-β-D-glucopyranosyl-1, 3, 7-trihydroxanthone,5)、芒果苷(mangiferin,7)、1-O-[β-D-吡喃木糖(1→6)-β-D-吡喃葡萄糖］-7-羟基-3,8-二甲氧基口山酮(1-O-［β-D-xylopyranosyl-(1→6)-β-D-glucopyranosyl］-7-hydroxy-3, 8-dimethoxyxanthone,8)、8-O-［β-D-吡喃木糖(1→6)-D-吡喃葡萄糖］-1,7-二羟基-3-甲氧基口山酮(8-O-［β-D-xylopyranosyl(1→6)-lucopyranosyl］1, 7-dihydroxy-3-methoxy-xanthone,9)、1-O-β-D-吡喃葡萄糖-7-羟基-3,8-二甲氧基口山酮(1-O-β-D-glucopyranosyl-7-hydroxy-3,8-dimethoxyxanthone,10)、异荭草苷(isoorientin,11)、8-O-β-D-吡喃葡萄糖-1,3,5-三羟基口山酮(8-O-β-D-glucopyranosyl-1, 3, 5-trihydroxanthone,13)。其余4个还在结构鉴定中。结论 所有化合物1～11均为首次从该植物中得到。     

密花远志的化学成分研究

目的研究密花远志P olyg a la tricorn is的化学成分。方法采用反复柱色谱方法进行分离,利用化合物的光谱数据结合理化性质鉴定化合物的结构。结果分离并鉴定了8个化合物,分别为:豆甾-7,22-二烯(stigm asta-7,22-d iene,Ⅰ)、α-菠甾醇(-αsp inastero l,Ⅱ)、α-菠甾醇-3-O-β-D-葡萄糖苷(-αsp inastery l-3-O--βD-g lucos ide,Ⅲ)、α-菠甾醇-3-O-β-D-葡萄糖苷-6′-O-棕榈酸酯(-αsp inastery l-3-O-β-D-g lucos ide-6-′O-pa lm itate,Ⅳ)、1,7-二羟基酮(1,7-d ihydroxy xan thone,Ⅴ)、1,3-二羟基酮(1,3-d ihydroxy xan thone,Ⅵ)、1-甲氧基-2,3-亚甲二氧基酮(1-m ethoxy-2,3-m ethy lened ioxy xan thone,Ⅶ)、1,7-二甲氧基酮(1,7-d im ethoxy xan thone,Ⅷ)。结论化合物Ⅰ~Ⅷ均为首次从该植物中分离得到。     

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.     

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.     

Dynamic Changes in Serum Estradiol and Progesterone levels in Patients of Premenstrual Syndrome with Adverse Flow of Liver-qi

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.     

Real-time Three-dimensional Echocardiography in Assessment of Left Ventricular and Right Ventricular Volumes

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.     

SCREENING FOR A 21-CHROMOSOME ABNORMALITY IN PREIMPLANTED EMBRYOS OF ELDERLY WOMEN

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.     

Scientific principles and rigorous processes should be followed in developing clinical guidelines for therapeutic interventions of integrative medicine

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.