反相HPLC法测定摩罗冲剂中芍药甙含量

用反相高效液相色谱法测定中成药摩罗冲剂中芍药甙的含量。以Ｃ１８柱为固定相，甲醇－异丙醇－３６％酣酸－水（２５：２：２：７１）为流动相分离效果最佳。平均回收率９９．０６％，变异系数１．０４％。本法提取简单，分析快速、精确、重现性好。     

芍甙脉康冲剂中芍药甙含量测定研究

目的：建立芍甙脉康冲剂中芍药甙的含量测定方法。方法：采用双波长薄层扫描法对样品中芍药甙进行了定量分析。薄层析为硅胶ＧＦ２５４,展开剂量为氯仿－甲醇（４：１）。样品测定波长λＳ＝２５４ｎｍ,λＲ＝３６５ｎｍ。结果：平均加样回收率为９８．４％。精密度及稳定性的相对标准差分别为２．１％及０．９６％。结论：薄层扫描法测定芍药甙含量优于薄层比色法,该方法简单,重现性好,适用该制剂的含量测定。     

薄层扫描法测定芍黄片中芍药甙的含量

用正丁醇提取，薄层扫描法测定芍黄片中芍药甙的含量，薄层条件为含０．５ＣＭＣ－Ｎａ和硅胶ＧＦ２５４的薄层板，氯仿－甲醇－醋酸乙酯（８：３：１）为展开剂，扫描测定λｓ＝２１５ｎｍ，λＲ＝２９０ｎｍ，平均回收率为１００．２５％，ＲＳＤ为２．２７％。     

高压液相色谱法测定安神二号蜜丸和赤芍中芍药甙含量的研究

用高压液相色谱法测定安神二号蜜丸制剂和赤芍中芍药甙的含量，以寻找控制制剂和药材质量的方法。安神二号蜜丸和赤芍饮片经冷浸、温浸、回流、超声处理，芍药甙提取完全。采用ＹＷＧＣ１８不锈钢柱（１５０／４．６／１０），以甲醇／０．０５ｍｏｌ（ｐＨ３．６）磷酸二氢钾（３５：６５）为流动相，在流速０．８ｍｌ／ｍｉｎ、工作压力２２６００ｋＰａ、检测波长２４０ｎｍ的条件下，芍药甙ｔＲ为６．１０ｍｉｎ，单一样本测定时间为１２ｍｉｎ。芍药甙在２～４０μｇ／ｍｌ范围内线性关系良好，ｒ＝０．９９９８（ｎ＝５），回收率为９８．０３％，ＣＶ＝０．４４％（ｎ＝３）。日内误差为２．２５％（ｎ＝６），日间误差为２．２４％（ｎ＝６）。安神二号蜜丸和赤芍中芍药甙的含量均值分别为０．３１８％（ｎ＝３）和４．５２％（ｎ＝３），ＣＶ分别为２．６３％和２．３１％。     

用高效液相色谱法测附桂骨痛颗粒中芍药甙量

采用高效液相色谱（ＨＰＬＣ）法测定附桂骨痛颗粒中芍药甙含量。用十八烷基键合硅胶柱分离芍药甙,流动相：乙氰－水（１２：８８）,检测波长：２３０ｎｍ。芍药甙峰与相邻组分峰的分离度为１．２,理论塔指数以芍药甙峰计算为６５００;线性范围０．１０８～１．０８μｇ（ｒ＝０．９９９９）;平均回收率９９．８％,ＲＳＤ＝２．１２％（ｎ＝７）。本法简便、快速、重现性好,适用于该产品质量分析检验。     

高效液相色谱法测定尿毒清凉剂中芍药甙的含量

采用高效液相色谱法，对尿毒清冲剂中的活性成份芍药甙进行含量测定，方法精密度高，性好，在５－２５μｇ间线性关系良好，回归方程Ｙ＝１１５４７．５π－１７．４，ｒ＝０．９９９９。平均加收率达９６．７％，ＲＳＤ＝１．１２％，对１０批供试品进行测定，拟定出该制该制中芍药药甙的含量测定方法。     

高效液相色谱法测定尿毒清冲剂中芍药甙的含量

采用高效液相色谱法，对尿毒清冲剂中的活性成份芍药甙进行含量测定，方法精密度高，重现性好，在５─２５μｇ间线性关系良好，回归方程Ｙ＝１１５４７．５ｘ－１７．４，ｒ＝０．９９９９．平均回收率达９６．７％（ｎ＝６），ＲＳＤ＝１．１２％。对１０批供试品进行测定，拟定出该制剂中芍药甙的含量测定方法。     

复方降脂胶囊质量标准的研究

对复方降脂胶囊进行了定性定量研究,显微方法鉴别红花;薄层色谱法对照药材鉴别决明子,ＨＰＬＣ法测定芍药苷的含量,十八烷基硅烷键合胶为固定相,甲醇－５ｍｍｏｌ／Ｌ柠檬酸水溶液－异丙醇（２５：７５：２）为流动相,紫外检测波长２４０ｎｍ芍药苷与其它杂质得到有效分离,回收率为１００．５２％ＲＳＤ＝１．９２％,测定结果所用药材赤芍中芍药苷的含量为４．４６％,三批样品的平均含量为１２．６９ｍｇ／ｇ,暂定芍药苷的     

中药丹皮木心药用价值究研—芍药甙的定性鉴别和含量测定

通过对芍药甙的定性鉴别和含量测定，证实木心同丹皮一样含有芍药甙活性成分，显色反应相同，ＴＬＣ图谱相似。ＨＰＬＣ法测试芍药甙含量，丹皮中含芍药甙为１．５７４１％，木心中为１．２９０２％，经统计学处理，两者无显著性差异，ｔ＝２．００２，ｔ（４）０．０５＝２．７７６，Ｐ＞０．０５。     

反相高效液相色谱法测定虚寒胃痛颗粒中芍药甙含量

目的：利用HPLC法测定虚寒胃痛颗粒中芍药甙的含量。方法：采用C18柱，甲醇－水（25：75）为流动相，检测波长230nm，进样量10μl。结果：芍药甙的线性范围是0．2068－1.0340μg，r＝0．9993，平均回收率为97．9％，RSD＝1．18％。结论：方法简便，准确，可作为该成药的质量控制方法。     

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.