短柔毛大戟中能逆转小鼠淋巴瘸细胞多药耐药性的二萜成分[英]／Valente C…／／Planta Med

作者曾从短柔毛大戟(拟)Euphorbia pubesens Vahl中分得3个假白榄烷型二萜多酯pubescene A(1)、B(2)、C(3)。现又从该植物中分得一新的该类化合物pubescene D(4)并研究了化合物1～4逆转小鼠淋巴瘤细胞多药耐药性(MDR)的活性。     

拳参的DNA裂解活性成分研究

目的：研究蓼科植物拳参的水溶性成分，并测试其DNA裂解活性。方法：利用反相层析的方法进行分离纯化，根据化合物的化学性质与光谱数据鉴定其结构。结果：自拳参根茎的60％丙酮提取物中分得10个化合物，确定其结构分别为没食子酸（I），色氨酸（Ⅱ），2，6－二羟基苯甲酸（Ⅲ），（＋）－儿茶素（Ⅳ），绿原酸（Ⅴ），（－）-表儿茶素5－O－β－D－吡喃葡萄糖苷（Ⅵ），（＋）－儿茶素－7－O－β－D－吡喃葡萄糖苷（Ⅶ），1－（3－O－β－D－吡喃葡萄糖革－4，5－二羟基－苯基）－乙酮（Ⅷ），（＋）-儿茶素－5－O－β－D－吡喃葡萄糖苷（Ⅸ）和（－）-表儿茶素（Ⅹ）。结论：化合物Ⅱ，Ⅲ，Ⅴ-Ⅹ为首次从该植物中分得，化合物Ⅰ，Ⅳ，Ⅵ，Ⅶ，Ⅸ，Ⅹ具有很强的DNA裂解活性。     

苦瓜水溶性部位化学成分的研究

目的为揭示苦瓜M om ord ica charantia生理活性的化学物质基础,对其水溶性部位的化学成分进行了研究。方法经聚酰胺、大孔树脂、硅胶、RP-18和Sephadex LH-20反复柱色谱分得并通过波谱分析鉴定了7个化合物。结果分别为:1,2,3,4-四氢-1-甲基-β-咔啉-3-羧酸(1,2,3,4-tetrahydro-1-m ethy l--βcarbo line-3-carboxy licac id,Ⅰ)、腺苷(adenos ine,Ⅱ)、核黄素(riboflav ine,Ⅲ)、苦瓜苷A(m om ord icos ide A,Ⅳ)、苯丙氨酸(pheny la lan ine,Ⅴ)、甘露醇(m ann ito l,Ⅵ)、对羟基苯甲酸葡萄糖酯[1-(4-(hydroxybenzoy l)g lucose,Ⅶ]。结论化合物Ⅰ~Ⅲ及Ⅶ为首次从该植物中分得。化合物Ⅱ具有抗心率失常和心脏镇静活性。     

鼓槌石斛化学成分的研究

目的 研究鼓槌石斛的化学成分，为阐明其活性成分，开发其资源提供科学依据。方法 采用胶柱层析法进行分离，根据光谱数据鉴定结构。结果 从中分得10个化合物，分别为：erianin(Ⅰ），chrysotobibenzy(Ⅱ),chrysotoxene(Ⅲ),confusarin(Ⅳ),erianthridin(Ⅴ),dendroflorin(Ⅵ),chrysotoxone(Ⅶ),dengibsin(Ⅷ）和β-sitosterol(Ⅸ），daucosterol(Ⅹ)。结论 化合物Ⅴ为首次从石斛属植物中分得，化合物Ⅵ为首次从该植物中分得。     

人参四逆汤活性成分的分离和鉴定

目的 研究人参四逆汤的活性成分。方法 利用硅胶色谱柱分离技术，通过理化方法及光谱分析鉴定其化学结构。结果 从人参四逆汤水溶液中，分得7个化合物，分别鉴定为人参皂苷-Rb1、-Rb21、-Rc、-Rd、-Re、-Rg1和尿嘧啶。结论 首次从人参四逆汤水溶液中分得这些化合物。     

穗花牡荆提取物对前列腺上皮细胞增殖的抑制作用和促细胞凋亡作用

扁柏酚属于环庚三烯酚酮化合物，从扁柏属和崖柏属等植物中分得。具有羟基酮结构的该化合物的细胞毒活性被认为是依赖于其强的铁离子螯合作用。作者研究了扁柏酚金属离子螯合物产生的活性氧，且因此产生的细胞毒活性。     

069 皂荚棘刺中的抗诱变成分

作者以抗诱变活性为导向，从皂荚Gleditsia sinensis Lain．的干燥棘刺提取物中分得1个三萜类化合物（1）和4个甾体化合物（2～5），并初步研究了它们的抗诱变活性。     

313例大学生冬夏二季4小时负荷尿核黄素测定结果分析

核黄素,俗称维生素B2,是人体内六大营养素中不可缺少的一种水溶性维生素.核黄素为橙黄色结晶化合物,溶于水,水溶液呈现黄绿色荧光,对热、酸稳定,碱性条件下不稳定,是体内多种氧化酶系统不可缺少的辅基,对维持机体健康和皮肤粘膜的正常状态有积极作用[1].     

王不留行中的雌激素活性环肽

王不留行 Vaccaria segetalis 为行血通经,催生下乳,消肿敛疮中药,能治妇女经闭、乳汁不通等症。作者等前曾从其种子中分得一个环六肽化合物(甘、缬、脯、缬、色、丙),命名为 segetalin A,具有雌激素样活性。本文继此报道从中又分得另三个环肽,分别命名为:segetalin B、C 和 D。     

微波法提取毛老虎叶挥发油的GC-MS分析

以生物活性为导向，应用体外NF-κB报告基因检测法，从旋覆花Inula britannica var．chinensis（Rupr．）Regel地上部分的醋酸乙酯部位分得4个新的倍半萜二聚体inulanolide A～D（1～4）和3个已知单体倍半萜（5～7）。评价了这些化合物对NF—κB活性、NO和TNF—α产生的影响。     

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.