复方三黄酊质量标准研究

目的 完善复方三黄酊质量标准.方法 采用薄层色谱法对黄芩、黄连、黄柏进行定性鉴别,采用高效液相色谱法测定复方三黄酊的主要有效成分盐酸小檗碱的含量.结果 薄层鉴别专属性强.盐酸小檗碱的含量测定方法快速准确,线性关系良好,平均回收率为98.91%.结论 这种质量控制方法简便可靠,可有效控制复方三黄酊的质量.     

复方黄柏胶囊定性定量方法的研究

目的建立复方黄柏胶囊定性定量方法。方法采用薄层色谱法对复方黄柏胶囊中所含黄柏、栀子、姜黄、蒺藜进行了定性鉴别研究。采用高效液相色谱法(HPLC)测定复方黄柏胶囊中盐酸小檗碱的含量,色谱柱kromatosil C18,流动相为乙腈-0.03mol/L磷酸二氢钠-磷酸(35:65:0.08),紫外检测波长为265nm,流速为1.0mL/min。结果薄层色谱鉴别方法专属性强,斑点分离良好。复方黄柏胶囊中盐酸小檗碱HPLC测定样品平均回收率为96.5%,RSD=1.6%(n=9)。结论所建立的方法可作为复方黄柏胶囊的质量控制方法。     

新伤贴质量标准的研究

目的建立新伤贴的质量控制方法。方法用薄层色谱法对新伤贴中的大黄、栀子、赤芍、冰片进行定性鉴别;采用高效液相色谱法测定盐酸小檗碱的含量。结果薄层色谱中斑点清晰,易于识别;盐酸小檗碱线性范围为0.049～0.730μg,r=0.9997,平均回收率为96.5%,RSD为1.3%。结论本方法简便,灵敏度高,可有效地控制新伤贴的质量。     

复方仙鹤草肠炎片质量标准研究

目的:制定复方仙鹤草肠炎片质量标准。方法:采用薄层色谱法对复方仙鹤草肠炎片的黄连、桔梗进行定性鉴别;同时采用高效液相色谱法对方中盐酸小糪碱含量进行测定。结果:复方仙鹤草肠炎片中黄连、桔梗的薄层色谱鉴别斑点清晰,分离效果良好;盐酸小檗碱含量在16.20~113.3 ng呈良好的线性关系(r=0.9996),平均回收率为99.6%(n=6,RSD 0.73%)。结论:制定的质量标准简便可行,重复性好,结果准确,能够对本品进行严格质量控制。     

延鱼止痛颗粒质量标准研究

目的:建立延鱼止痛颗粒的质量控制方法。方法:采用薄层色谱法对处方中所含的枳壳、延胡索、鱼腥草进行定性鉴别;采用高效液相色谱法测定方中所含盐酸小檗碱的含量。结果:薄层色谱法可鉴别出枳壳、延胡索、鱼腥草,且阴性对照无干扰;盐酸小檗碱在0.362-1.448μg范围内呈良好线性关系,r=0.999 9,平均回收率为98.56%,RSD=1.03%。结论:本方法操作简易方便、准确可靠、重现性好,可作为延鱼止痛颗粒的质量控制方法。     

协日嘎四味汤胶囊定性定量方法的研究

目的建立协日嘎四味汤胶囊定性定量方法。方法采用薄层色谱法对协日嘎四味汤胶囊中所含黄柏、栀子、姜黄、蒺藜进行定性鉴别研究。采用高效液相色谱法测定其盐酸小檗碱的含量,色谱柱kromatosil C18,流动相为乙腈-0.03 mol/L磷酸二氢钠-磷酸(35:65:0.08),紫外检测波长为265 nm,流速为1.0 mL/min。结果薄层色谱鉴别方法专属性强,斑点分离良好。协日嘎四味汤胶囊中盐酸小檗碱HPLC测定样品平均回收率为96.5%,RSD=1.6%(n=9)。结论所建立的方法可作为协日嘎四味汤胶囊的定性定量方法。     

清热降压胶囊质量标准研究

目的：建立清热降压胶囊的质量标准。方法：用薄层色谱法（TCL）对黄连、钩藤、芦荟进行鉴别,用高效液相色谱法（HPLC）测定盐酸小檗碱。结果：定性鉴别分离度好,专属性强,盐酸小檗碱在0.01448～0.1448 mg.ml-1范围内与峰面积呈良好的线性关系,回归方程：Y=80417X-205.89,r=0.9995,平均回收率101.1%,RSD为2.22%。结论：本法操作简便、准确、重复性好,可作为清热降压胶囊的质量控制标准。     

高效液相色谱法测定消渴灵胶囊中盐酸小檗碱含量

消渴灵胶囊是由地黄、五味子、黄连等11味中药组成的复方中药制剂,其中盐酸小檗碱是黄连的主要成分之一,原标准含量测定方法为薄层扫描法,因分离度不好,本文采用高效液相色谱法测定黄连中盐酸小檗碱的含量,此方法简便,准确,可重复性好.     

蛇伤药酒的薄层鉴别及其盐酸小檗碱含量测定

目的:研究蛇伤药酒的质量控制方法。方法:采用薄层色谱法(TLC)对制剂中大黄进行定性鉴别;采用高效液相色谱法(HPLC)测定盐酸小檗碱的含量,Diamonsil C_(18)(2)色谱柱(200mm×4.6mm,5μm),流动相为乙腈-0.05mol/L磷酸二氢钾溶液(32:68),检测波长为345nm,流速为1.0m L/min,柱温为25℃。结果:定性鉴别薄层色谱斑点特征明显;高效液相色谱法测定盐酸小檗碱含量,在0.04~0.42μg范围内与峰面积值呈良好的线性关系,回归方程:Y=0.6156X-0.0776(r=0.9999),平均加样回收率为99.71%,RSD=1.44%(n=6)。结论:采用TLC法对大黄定性鉴别,HPLC定量测定盐酸小檗碱含量,两方法简便准确,重复性良好,可有效控制该制剂质量。     

香连止泻片质量标准研究

目的：制订香连止泻片的薄层色谱鉴别与含量测定方法。方法：修订原标准黄连、白芍的薄层鉴别,增加厚朴、枳实的薄层鉴别,采用高效液相色谱法测定黄连中盐酸小檗碱的含量。结果：薄层色谱斑点清晰,重现性好盐酸小檗碱在0.030 66μg～0.613 2μg范围内线性关系良好。平均回收率为98.89%,RSD为1.4%。结论：本方法简便易行,重现性好。     

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.