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。     

水菖蒲的化学成分研究

目的研究水菖蒲Acorus calamus的化学成分。方法应用硅胶、Sephadex LH-20等色谱技术进行分离纯化,采用MS、NMR等波谱技术解析结构。结果从水菖蒲中共分离得到9个化合物,分别鉴定为:表水菖蒲酮(ep ishyobunone,Ⅰ)、β-细辛醚(β-asarone,Ⅱ)、棕榈酸(palmiticacid,Ⅲ)、异水菖蒲酮(isoshyobunone,Ⅳ)、异水菖蒲二醇(isocalammendiol,Ⅴ)、β-谷甾醇(β-sitosterol,Ⅵ)、5-羟基-7,8,3′,4′-四甲氧基黄酮(5-hydroxy-7,8,3′,4′-tetram ethoxyflavone,Ⅶ)、5,4′-二羟基-7,8二-甲氧基黄酮(5,4′-dihydroxy-7,8-dimethoxyflavone,Ⅷ)、β-胡萝卜苷(β-daucosterol,Ⅸ)。结论化合物Ⅶ和Ⅷ为首次从菖蒲属植物中分离得到。     

藏药镰形棘豆的化学成分研究

目的对藏药镰形棘豆Oxytropis falcata植物的化学成分进行研究。方法采用乙醇提取,硅胶柱色谱分离,并通过波谱分析技术鉴定了其化学结构。结果从藏药镰形棘豆中得到10个化合物,分别鉴定为:7-甲氧基二氢黄酮(Ⅰ)、7-羟基二氢黄酮(Ⅱ)、(S)-5-羟基-7-甲氧基二氢黄酮(Ⅲ)、(S)-5,7-二羟基二氢黄酮(Ⅳ)、2′,4′-二羟基双氢查耳酮(Ⅴ)、2′,4′,4-三羟基查耳酮(Ⅵ)、鼠李素(Ⅶ)、臭豆碱(Ⅷ)、β-谷甾醇(Ⅸ)、β-胡萝卜苷(Ⅹ)。结论以上化合物均为首次从该植物中分离得到。     

菝葜中黄酮和二苯乙烯类成分的研究

目的 研究菝葜 Smilax china 的化学成分。方法 采用硅胶、Sephadex LH-20、ODS柱色谱及半制备液相色谱等技术分离菝葜的化学成分,根据化合物的理化性质及波谱数据鉴定化合物的结构。结果 从菝葜中分离得到11个化合物,其中黄酮类成分7个：二氢山柰酚-5-O-β-D-葡萄糖苷(Ⅰ)、黄杞苷(Ⅱ)、异黄杞苷(Ⅲ)、双氢槲皮素-3′-O-葡萄糖苷(Ⅳ)、3,5,7,3′,5′-五羟基二氢黄酮醇(Ⅴ)、落新妇苷(Ⅵ)和槲皮素-3′-O-葡萄糖苷(Ⅶ);二苯乙烯类化合物4个： 白藜芦醇苷(Ⅷ)、 藨草素A (scirpusin A,Ⅸ)、 白藜芦醇(Ⅹ)和2,4,3′,5′-四羟基茋(Ⅺ)。结论 化合物Ⅳ～Ⅸ均为首次从该植物中分离得到;化合物Ⅸ的碳谱数据为首次报道。     

漆姑草中酚性成分研究

目的研究漆姑草中的酚性化学成分。方法采用硅胶柱色谱、Sephadex LH-20凝胶色谱及RPC-18柱色谱进行分离纯化,并运用波谱方法对所分得化合物进行结构鉴定。结果从漆姑草中分得9个酚性化合物,经波谱解析分别确定为:E-对甲氧基肉桂酸甲酯(Ⅰ)、伞形花内酯(Ⅱ)、7-甲氧基香豆素(Ⅲ)、5,7-二羟基香豆素(Ⅳ)、5,7-二甲氧基香豆素(Ⅴ)、7-O-β-D-葡萄吡喃糖-6-C-β-D-木糖吡喃糖-5,4′-二羟基黄酮(Ⅵ)、5,7,2′-三羟基-8-甲氧基黄酮(Ⅶ)、5,7-二羟基-8,2′-二甲氧基黄酮(Ⅷ)、5,7,3′,4′-四羟基-6-甲氧基黄酮(Ⅸ)。结论所有化合物均为首次从该植物中分得。     

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。     

毛脉酸模的化学成分研究(Ⅳ)

目的研究毛脉酸模的化学成分。方法采用硅胶柱色谱、聚酰胺柱色谱及制备高效液相色谱等分离手段,通过理化性质及波谱分析鉴定结构。结果从毛脉酸模乙醇提取物的60%乙醇洗脱部位中分离出10个单体化合物,分别为酸模素(Ⅰ)、大黄素(Ⅱ)、6-羟基芦荟大黄素(Ⅲ)、6′-乙酰基-大黄酚-8-O-β-D-葡萄糖苷(Ⅳ)、大黄酚-8-O-β-D-葡萄糖苷(Ⅴ)、白藜芦醇(Ⅵ)、9,9′-双蒽酮2,2′-二甲基-5,5′-二(β-D-吡喃葡萄糖)-9,9′,10,10′-四氢4,4′-二羟基10,10′-二羰基(Ⅶ)、大黄素-8-O-β-D-葡萄糖苷(Ⅷ)、白藜芦醇-3-O-β-D-葡萄糖苷(Ⅸ)、芦丁(Ⅹ)。结论化合物Ⅶ经文献检索为新化合物,命名为酸模苷A(rumoside A)。化合物Ⅲ、Ⅳ为首次从酸模属植物中分离得到,化合物Ⅴ、Ⅷ、Ⅹ为首次从该植物中分离得到。     

大叶千斤拔根的化学成分

目的 研究大叶千斤拔根的化学成分。方法 采用柱色谱及薄层色谱进行分离纯化,根据其理化性质及波谱数据鉴定化学结构。结果 分离得到11个化合物,其中异黄酮4个,双氢黄酮3个,黄烷醇1个,分别是染料木素(Ⅰ)、5,7,3′,4′-四羟基异黄酮(Ⅱ)、5,7,4′-三羟基异黄酮-7-O-β-D-吡喃葡萄糖苷(Ⅲ)、5,7,4′-三羟基-8,3′-二异戊烯基双氢黄酮(Ⅳ)、5,7,4′-三羟基-6-异戊烯基异黄酮(Ⅴ)、云南千斤拔素(flemichin D,Ⅵ)、胡枝子黄烷酮A(lespedezaflavanone A,Ⅶ)、赛金莲木儿茶精(ouratea-catechin,Ⅷ)、3,4,5-三甲氧基苯-O-β-D-葡萄糖苷(Ⅸ)、豆甾醇-3-O-β-D-吡喃葡萄糖苷(Ⅹ)、豆甾醇(Ⅺ)。结论 化合物Ⅲ～Ⅴ、Ⅶ～Ⅺ为首次从该种植物中得到,化合物Ⅰ～Ⅺ为首次从该植物根中得到,其中以生理活性成分染料木素为代表的异黄酮为该植物根的主要成分。     

蒙药小白蒿化学成分的研究

目的 研究小白蒿Artemisia frigida氯仿和醋酸乙酯提取物中的化学成分。方法 采用硅胶和LH-20柱色谱法进行分离,运用各种波谱法和标准品对照法鉴定分离得到的化合物。结果 鉴定了13个化合物,分别为槲皮素(Ⅰ)、木犀草素(Ⅱ)、5,7,3′-三羟基-4′-甲氧基黄酮(Ⅲ)、5,7,3′-三羟基6,4′-二甲氧基黄酮(Ⅳ)、5,3′-二羟基-6,7,4′-三甲氧基黄酮(Ⅴ)、5,3′-二羟基3,6,7,4′-四甲氧基黄酮(Ⅵ)、对甲基苯酚(Ⅶ)、7-羟基香豆素(Ⅷ)、7-甲氧基香豆素(Ⅸ)、咖啡酸(Ⅹ)、β-谷甾醇(Ⅺ)、6,7-二羟基香豆素(ⅩⅡ)、7-羟基-5,6-二甲氧基香豆素(ⅩⅢ)。结论 所有化合物均为首次从该植物中分得。     

猫爪草中黄酮类与苷类化学成分的研究

目的研究猫爪草的化学成分。方法采用溶剂提取和柱色谱分离等方法进行分离和纯化,根据化合物的理化常数和波谱数据鉴定其结构。结果从醋酸乙酯和正丁醇部位分离鉴定了9个化合物,分别鉴定为:粗贝壳杉黄酮-4′-甲醚(Ⅰ)、榧双黄酮(Ⅱ)、罗汉松双黄酮A(Ⅲ)、白果素(Ⅳ)、异银杏素(Ⅴ)、穗花杉双黄酮(Ⅵ)、猫爪草苷[4氧-代-5-(O-β-D-吡喃葡萄糖基)-戊酸-正丁基酯](Ⅶ)、4-氧代-5-(O-β-D-吡喃葡萄糖基)-戊酸甲酯(Ⅷ)、苯甲醇O-β-D-吡喃葡萄糖苷(Ⅸ)。结论化合物Ⅰ~Ⅵ为首次从本属植物中分离得到,Ⅷ是新的天然产物,Ⅸ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.