Simultaneous Determination of Three Index Components in Aatragali Radix by HPCE

目的 建立高效毛细管电泳法(HPCE)同时测定黄芪饮片中黄芪甲苷、黄芪皂苷Ⅰ、毛蕊异黄酮葡萄糖苷含量的方法.方法 40 mmol/L硼砂-20 mmol/L硼酸-10％甲醇(pH=8.7)为电泳介质,未涂渍标准熔融石英毛细管(75 μm i.d.×64.5cm,有效长度56 cm)为分离通道,分离电压为20 kV,检测波长为206 nm,毛细管温度为25℃.压力进样为5 kPa×6 s.结果 3种指标成分的浓度与峰面积的线性关系良好(r＞0.9900);加样回收率为91.20％～104.40％.结论 该方法简单、准确,重复性较好,可用于黄芪饮片的质量评价和控制.     

高效毛细管电泳法测定新疆南疆棉籽仁中棉酚的含量

目的 建立了棉籽仁中棉酚的高效毛细管电泳检测方法.方法 使用长度为58.5 cm、内径75 μm的毛细管柱,分离电压20 kv,进样量0.5 pis×10 sec,分离温度25℃,缓冲盐溶液为0.01 mmol/L四硼酸钠-磷酸(pH=8.00)检测波长235 nm.结果 棉酚在5.0～50.0μg/ml范围内线性良好,r=0.999 8,检测限为0.08μg/ml,加样回收率为97.5%～98.4%.新疆南疆不同品种棉籽仁中棉酚含量为0.60%～1.04%.结论 本法具有良好的精密度和回收率,可作为棉籽仁中棉酚的含量测定方法.     

骨筋丸胶囊中毒性成分士的宁和马钱子碱的在线富集检测

目的 建立毛细管电泳场放大富集技术同时检测骨筋丸胶囊中有效毒性成分士的宁和马钱子碱的方法.方法 选择未涂渍弹性石英毛细管(50 μm×57 cm,有效分离长度50 cm)为分离通道,20 mmol/L醋酸钠(醋酸调pH 3.8)为运行缓冲溶液;运行电压20 kV;进样电压20 kV,进样时间25 s;在进样之前设定用水冲洗,压力为3.5 kPa,冲洗时间3 s;紫外检测波长260 nm.结果 该方法使士的宁和马钱子碱的检测灵敏度分别提高了600倍和400倍.士的宁在14.8～940.0 μg/L浓度范围内线性关系良好(r=0.999 8),最低检测限为1.48 μg/L,平均回收率为98.5%,RSD为1.9%;马钱子碱在17.2～1090.0 μg/L浓度范围内线性关系良好(r=0.999 9),最低检测限为2.58 μg/L,平均回收率为98.5%,RSD为1.8%.结论 本方法简便、快速、富集效率高,为骨筋丸胶囊生产过程中的质量控制及临床药物监测提供了一种新的、可靠的分析手段.     

高效毛细管电泳法测定肤炎康霜中氯霉素的含量

目的 :测定肤炎康霜中氯霉素的含量。方法 :高效毛细管电泳法。毛细管 60cm× 70 μm ;运行缓冲液 10 0mmol/L四硼酸钠(pH 9.2 ) ,高压进样 10s ,分离电压 2 5kV ,温度为 2 5℃ ,检测波长为 2 78nm。结果 :氯霉素在 2 0～ 10 0 μg/mL浓度范围内线性关系良好 (r =0 .9995 ) ,平均回收率为 99.45 % (n =5 ,RSD =0 .98% )。结论 :本法简单、快捷、灵敏。     

高效毛细管电泳法测定血清中头孢他啶的含量

采用高效毛细管电泳法测定血清中头孢他啶的含量。毛细管 6 0cm× 75 μm ;运行缓冲液 2 5mmol/L四硼酸钠 (pH8 2 ) ,高压进样 5s,分离电压 2 0kV ,温度为 2 5℃ ,检测波长为 2 5 4nm ,地塞米松磷酸钠为内标。头孢他啶在 0 .6 2 5～ 2 0 μg/mL浓度范围内线性关系良好 (r =0 .9997) ,平均回收率为 98.81 % (n =5 ,RSD =1 .88% )。     

高效毛细管电泳法测定肤炎康霜中地塞米松磷酸钠的含量

目的 测定肤炎康霜中地塞米松磷酸钠的含量。方法 采用高效毛细管电泳法。毛细管60 cm×75μm、运行缓冲液100 mmol/L四硼酸钠(pH 9.2)、高压进样10s、分离电压25kv、温度为25℃、检测波长为240 nm。结果 地塞米松磷酸钠在20～100 μg/ml浓度范围内线性关系良好(r=0.9998),平均回收率为99.75%(n=5,RSD=1.03%)。结论 本法简单、快捷、灵敏,可用于肤炎康霜的质量控制。     

湖北道地药材荆半夏的高效毛细管电泳指纹图谱分析

目的 测定荆半夏药材中苯甲酸的含量.方法 采用高效毛细管电泳法.电泳条件为:石英毛细管柱(75μm×60cm);运行缓冲液为20mmol/L的硼砂溶液(25℃时pH=9.18);分离电压20kV;进样时间为5s;温度为25℃,检测波长为220nm.结果 半夏苯甲酸在10～100μg/ml范围内呈良好的线性关系.平均回收率分别为94.6%、97.9%、96.9%;RSD分别为2.2%、1.8%、1.7%(n=3).结论 毛细管电泳法用于测定荆半夏中苯甲酸的含量是可行的.     

HPLC法测定各沪产地龙和广地龙中次黄嘌呤、黄嘌呤、尿嘧啶和尿苷的含量

目的 测定各种沪产地龙与广地龙中次黄嘌呤、黄嘌呤、尿嘧啶、尿苷的含量,建立地龙药材质量评价的方法.方法 用0.9％生理盐水超声提取地龙,SORBAX SB-Aq色谱柱(250 mm×4.6mm,5μm,Aglient Co.,Ltd),流动相:5 mmol/L磷酸二氢钾(pH 2.9),流速1 mL/min,检测波长254 nm,柱温30℃,进样量10μL,采用HPLC法,同时测定次黄嘌呤、黄嘌呤、尿嘧啶、尿苷4种核苷类成分的含量.结果 次黄嘌呤的线性范围为0.500 0～100.00 μg (r=0.999 9),平均回收率99.37％,RSD=1.36％(n=6);黄嘌呤的线性范围为0.500 0～100.00 μg(r=0.993 1),平均回收率91.57％,RSD=1.40％(n=6);尿嘧啶的线性范围为0.500 0～100.00 μg (r=0.999 9),平均回收率95.31％,RSD=1.64％(n=6);尿苷的线性范围为0.500 0～100.00 μg(r=0.999 9),平均回收率100.21％,RSD=1.98％(n=6).结论 该方法重复性、回收率好,可用于测定地龙与广地龙中次黄嘌呤等4种核苷类成分的含量.     

高效毛细管电泳法测定决明子及决明子茶中大黄素和芦荟大黄素的含量

目的　建立简单、快速且能同时分离测定决明子及决明子茶中大黄素、芦荟大黄素含量的胶束毛细管电泳法。方法　采用高效毛细管电泳法 ,缓冲体系为 15 0mmol/L硼砂 30 0mmol/LSDS 10 %乙醇 (pH 9 6 0 ) ,熔融石英毛细管柱 (5 0cm× 75 μm) ,分离电压为 2 0kV ,检测波长为 2 5 4nm ,温度为 (2 5± 0 3)℃ ,进样时间为 5s。 结果　大黄素、芦荟大黄素在 4～ 12 0 μg/mL、10～ 2 0 0 μg/mL与峰面积线性关系良好 ,大黄素和芦荟大黄素平均回收率分别为 98 6 %和 10 2 9%。结论　该方法简单、快速、准确、重现性好 ,可用于决明子药材及决明子茶的质量控制     

高效毛细管电泳法测定大鼠多索茶碱血药浓度

目的:建立测定大鼠血浆多索茶碱血药浓度的高效毛细管电泳法.方法:样品用体积分数30%三氯醋酸沉淀蛋白,电解缓冲液为25 mmol/L磷酸盐缓冲液-50 mmol/L SDS(体积比为20:80,pH=7.0),分离通道为50cm×50 μm未涂层毛细管,紫外检测波长为273 nm,分离电压12 kV,采用峰面积内标法定量.结果:采用本法时,多索茶碱血浆浓度在2.5～80.0 mg/L范围内线性关系良好,标准曲线回归方程为y=-8.40×10-3 0.13X(r=0.998 1,P＜0.05),方法回收率在允许范围内,日内和日间变异分别小于3.4%和7.5%.结论:本法稳定可靠、操作简单、分析速度快、分离效果好.     

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.