云南琵琶甲脂溶性抗菌活性成分的研究

首次从云南琵琶甲的脂溶性提取物中分得５个化合物，分别鉴定为４－乙基－１，３－苯二醇，１３－丙基二十五烷，胆甾醇，油酸和亚油酸，经抗菌活性实验，结果表明化合物Ｉ具有抗菌活性。     

桂林紫薇的化学成分研究

目的：对桂林紫薇茎的化学成分进行研究。方法：利用反复硅胶柱层析进行分离和纯化，通过理化方法及光谱分析鉴定其结构。结果：从桂林紫薇茎的乙醇提取物中分得9个化合物，包括6个三萜，分别鉴定为羽扇豆醇（lupeol,I），木栓烷酮（friedelin,Ⅱ），白桦脂醇（betulin,Ⅲ），阿江三萜醇酸（arjunolic acid,Ⅳ），胶三萜－5－烯－3β－醇（glut-5-en-3β-ol,V），齐墩果酸（oleanolic acid, Ⅵ），β－谷甾醇（Ⅶ），胡萝卜苷（Ⅷ），三十五烷（pentatriacontane，Ⅸ）。结论：以上化合物I～Ⅵ，Ⅶ，Ⅸ均为首次从该属植物中分得。     

毛脉酸模中两个化合物的结构研究

从毛脉酸模Rumexgmelini根部的甲醇提取物中分得5个化合物，运用化学方法及光谱（1H，13CNMR，C－HCosy，DEPT和选择性远程DEPT）解析，鉴定其中2个化合物的结构分别为白基芦醇（Ⅰ），白藜芦醇-3－O-β-D-葡萄糖忒（Ⅱ）。另外3个化合物是：胡萝卜甙，蔗糖，对羟基桂皮酸。化合物Ⅰ和Ⅱ在毛脉酸模根中首次发现。     

中药紫株的化学成分研究

目的：研究紫株Callicarpa pedunculata R.Brown的化学成分。方法：利用各种色谱技术进行分离纯化,通过各种理化方法及光谱（IR,MS,^1HNMR,^13CNMR)分析鉴定其化学结构。结果：从紫株全草的氯仿提取物中分离得到10种化合物,分别鉴定为：4个二萜类化合物：14α－羟基－7,15－异松烷二烯－18烷酸（14α－hydroxy-7,15-isopimaradien-18-oic acid,Ⅰ）;16α,17-二羟基－3－氧－扁枝杉烷（16α,17-dihydroxy-3-oxo-phyllocladane,Ⅱ）;8,11,13,15-四烯松香烷－18－烷酸（8,11,13,15-abietatraen-18-oic acid,Ⅲ）;6α-羟基尼刀瑞尔醇（6α-hydroxy nidorellol,Ⅳ）;2个黄酮类化合物5－羟基－3,4‘,7-三甲氧基黄酮（5－hydroxy-3,4‘,7-trimethoxyflavone,Ⅴ）;3,5-二甲基莰非醇（3,5－dimethylkaempherol,Ⅵ）;其余的分别为：熊果酸（ursolic acid,Ⅶ）,肌醇（myoinositol, Ⅷ）,β-谷甾醇（β-sitosterol,Ⅸ）,β-香树素（β－amyrin, Ⅹ）。结论：化合物Ⅰ-Ⅵ为首次从该种植物中分离得到,且化合物Ⅰ-Ⅳ分别为4种不同类型的二萜。熊果酸的含量高达1％,本植物可作为其资源植物。     

狗筋蔓的化学成分

目的 研究我国民间草药狗筋蔓Cucubalus baccifer的化学成分。方法 Diaion HP-20及硅胶柱层析进行化合物的分离及光普分析的方法进行结构鉴定。结果 从乙酸乙酯萃取部位分离得到了6个化合物，经光谱分析分别鉴定为6ξ－methoxy-piperidin-2-one（Ⅰ（；pterolactam（Ⅱ）；5，7，4′－trihydroxyflavone（Ⅲ）；4－hydroxy-3-methoxybenzopropanyl acid（Ⅳ）；4－hydroxybenzoaldehyde（Ⅴ）和4－hydroxybenzoic acid（Ⅵ）。结论 化合物Ⅰ为一新的天然产物，其它化合物均为首次从该植物中分得。     

弯锥香茶菜化学成分的研究

从弯锥香茶菜Isodonloxothyrsa地上部分首次分得9个化合物，根据理化性质和光谱数据鉴定为：正三十三烷（tritriacontane,Ⅰ），正三十四烷酸（tetratriacontanoicacid，Ⅱ），正二十烷酸（triacontanoicacid，Ⅲ），正二十七烷酸（heptacosanoicacid，Ⅳ），乌发醇（uvaol，Ⅴ），β-谷甾醇（Ⅵ），紫云英甙（astragalin，Ⅶ），阿福豆甙（afzelin，Ⅷ）和异槲皮素甙（quercetin－3－O－glucoside，Ⅸ）。     

一品红茎叶化学成分的研究

从大戟科植物一品红Euphorbiapulcherrima茎叶中分得8个化合物，经理化常数和光谱分析鉴定为：5，7-二甲氧基香豆素（5，7－dimethoxycoumarin，1），β-谷甾醇（Ⅱ），邻苯二甲酸双-（2-乙基）已醇酯[1，2－benzenedicarboxylicacidbis（2－ethylhexyl）ester，Ⅲ），正十八烷酸（octadecylicacid，Ⅳ），丁香酸（syringicacid，Ⅴ），阿魏酸（ferulicacid，Ⅵ），胡萝卜甙（Ⅶ）和芦丁（Ⅷ）。这些化合物均为首次从该植物中分得。     

栝楼化学成分的研究及其α—菠菜甾醇的含量测定（I）

目的：研究栝楼了Trichosanthes kirilowii Maxim。的化学成分并建立栝楼中α－菠菜甾醇的含量测定方法。方法：采用反复硅胶柱层析分离纯化，通过理化常数测定和光谱分析鉴定其化学结构。采用双波长薄层扫描法研究栝楼中α－菠菜甾醇的含量测定方法。结果：从栝楼中分离得到12个化合物，已鉴定其中10个化合物：正三十四烷酸（tetratriacontanoic acid,I),2-甲基－3，5－二羟基四氢吡喃－4－酮（5－oxymaltol,Ⅱ），α－菠菜甾醇－β-D-葡萄糖苷（β-D-glucopyranosyl-α-spinasterol,Ⅲ），葡萄糖（glucose,Ⅳ），富马酸（fumaric acid,V)，琥珀酸（succinic acid,Ⅵ），尿嘧啶（uracil,Ⅶ），正三十四烷（tetratriacontane,Ⅸ），α－菠菜甾醇（α-spinasterol,X),栝楼仁二醇（karounidiol,Ⅺ）。化合物Ⅷ和Ⅶ正在鉴定中。测定栝楼中α－菠菜甾醇的含量为0．0171％。结论：化合物I、Ⅱ、Ⅲ、Ⅳ、Ⅶ、Ⅸ均首次从该植物中分离得到。而且该含量测定方法灵敏性高，稳定性和重现性较好，可作为栝楼生药的检测方法。     

接骨木化学成分的研究

从忍冬科接骨木属植物接骨木Sambucuswilliamsii干燥茎枝乙醇提取物的石油醚和氯仿部分中分得6个单体化合物。通过化学方法和波谱分析鉴定其结构分别为：棕榈酸蛇麻脂醇酯（Ⅰ）、熊果酸（Ⅱ）、β-谷甾醇（Ⅲ）、α-香树脂醇（Ⅳ）、三十烷酸（Ⅴ）和β-谷甾醇-β-D-葡萄糖苷。以上化合物均为首次从该植物中分得。     

川芎化学成分研究

目的：研究川芎化学成分。方法：利用硅胶柱层析分离，薄层纯化，分离川芎化学成分，经理化常数测定，波谱分析等鉴定结构。结果：共分得7个化合物，分别为正十六烷酸（I），4，7－二羟基－3－丁基苯酞（Ⅱ），大黄酚（Ⅲ），咖啡酸（Ⅳ），原儿茶酸（V），阿魏酸（Ⅵ）和胡萝卜苷（Ⅶ）。结论：化合物Ⅱ为一新化合物，化合物I、Ⅶ为首次从该植物中分得。     

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.     

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.     

Expression of OPGmRNA and ODFmRNA in the patients of hip fracture due to osteoporosis

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.     

The clinicopathological and immuohistochemical analysis of solid-pseudopapillary tumor of the pancreas： report of 9 cases

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.     

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.