RP-HPLC法测定当归芍药散中芍药苷的含量

目的：建立测定当归芍药散中芍药苷含量的方法。方法：采用反相高效液相色谱法,色谱柱为ODS Diamon-silTMC18（150mm×4.6mm,5μm）,流动相为甲醇-0.5%醋酸（30∶70）,检测波长为230nm,流速为1.0ml/min。结果：芍药苷在20～100μg/ml浓度范围内有良好的线性关系（r=0.9996）;平均回收率为（99.9±1.6）%,RSD为1.14%。结论：本法测定当归芍药散中芍药苷的含量,结果准确、可靠。     

高效液相色谱法测定当归芍药散不同极性部位中阿魏酸和芍药苷的含量

目的建立当归芍药散不同极性部位中阿魏酸和芍药苷的含量测定方法。方法采用高效液相色谱(HPLC)法测定当归芍药散不同极性部位中阿魏酸和芍药苷的含量,色谱柱为Kromasil 100-5-C18柱(4.6 mm×250.0 mm),流动相为甲醇∶0.2%磷酸溶液,梯度洗脱,流速1 mL/min,阿魏酸、芍药苷的检测波长分别为320,230 nm,进样量10μL,柱温30℃。结果阿魏酸和芍药苷的回归方程分别为Y=3.53×10~4X-4.83×10~2(r=0.999 0),Y=1.50×10~4X-2.51×10~4(r=0.999 9),线性范围分别为6.076～303.800μg/mL和7.448～372.400μg/mL;方法学考察中精密度、稳定性和重复性均符合要求,加样回收率的RSD分别为1.2%和1.1%。含量测定结果显示,除醇提物的水相部分未检出阿魏酸外,其他部分中均存在阿魏酸和芍药苷,且水煎液中阿魏酸、芍药苷含量均最高。结论该法简便、准确、分离效果好,可用于当归芍药散不同极性部位中阿魏酸、芍药苷的含量测定。     

HPLC测定乐脉软胶囊中芍药苷的含量

目的:建立乐脉软胶囊中芍药苷的含量测定方法.方法:采用高效液相色谱法测定该药中芍药苷的含量,色谱条件:汉邦Lichrospher C 18 柱(250.0 mm×4.6 mm,5 μm),乙腈水冰醋酸(16∶84∶0.8)为流动相,检测波长230 nm,柱温25℃,流速0.8 ml/min.结果:芍药苷浓度为 7.75～ 124.00 μg/ml时峰面积与浓度线性关系良好, r =0.999 7,平均回收率为97.50%,RSD为 1.62%.结论:HPLC简便易行,准确可靠,专属性强,可用于乐脉软胶囊的质量控制.     

RP-HPLC法测定当归芍药散中芍药苷的含量

目的：建立测定当归芍药散中芍药苷含量的方法。方法：采用反相高效液相色谱法．色谱柱为ODS Diamonsil C18（150min×4．6mm，5μm），流动相为甲醇-0．5％醋酸（30：70），检测波长为230nm，流速为1．0ml／min。结果：芍药苷在20-100μg／ml浓度范围内有良好的线性关系（r=0．9996）；平均回收率为（99．9±1．6）％，RSD为1．14％。结论：本法测定当归芍药散中芍药苷的含量，结果准确、可靠。     

HPLC法测定强肝片中芍药苷的含量

目的:建立强肝片中芍药苷的含量测定方法.方法:采用HPLC法测定芍药苷的含量,色谱柱为Diamonsil C18柱(150 min×4.6 mm,5 μm),流动相为甲醇-0.05 mol/L磷酸二氢钠(30:70),流速为1 ml/min,检测波长为230 nm.结果:芍药苷进样量在0.101 6～0.508 0 μg范围内线性关系良好(r=0.999 9),平均回收率为98.5%,RSD为1.7%(n=5).结论:本方法准确、稳定、重现性好,可作为强肝片中芍药苷的含量测定方法.     

HPLC法测定健脑灵片中芍药苷的含量

目的:建立健脑灵片中芍药苷的含量测定方法.方法:采用HPLC法,色谱柱为ODS-C18(4.6 mm×250 mm,5 μm),流动相为乙腈-0.1%磷酸溶液(14:86),流速为1.0 ml/min,检测波长为230 nm,柱温为25%.结果:芍药苷进样量在0.368～1.840 μg时线性关系良好(r=0.999 2),平均回收率为99.5%,RSD为1.62%.结论:本文建立的HPLC法可作为健脑灵片中芍药苷的含量测定方法.     

HPLC同时测定六味补血颗粒中芍药苷和阿魏酸的含量

目的:建立同时测量六味补血颗粒中主药有效成分芍药苷和阿魏酸含量的方法。方法:采用Symmetry C18色谱柱(4.6×250 mm,5μm);流动相采用甲醇-0.2%磷酸溶液梯度洗脱;流速1.0 mL/min;检测波长为285 nm;柱温:25℃。结果:芍药苷在17.44~174.4μg.mL-1的范围内峰面积积分值与浓度呈良好的线性关系(r=0.9997),平均回收率为98.9%,RSD=1.29%(n=6);阿魏酸在0.356~14.24μg.mL-1的范围内峰面积积分值与浓度呈良好的线性关系(r=0.9999),平均回收率为98.68%,RSD=2.4%(n=6)。结论:该法准确、简便,重现性好,可作为六味补血颗粒制剂质量控制的有效方法。     

赤芍胡椒复方中胡椒对芍药苷血药浓度的影响

目的:通过对小鼠口服赤芍和赤芍胡椒复方后血浆中芍药苷浓度的比较,探讨活血温里复方的药物配伍机理.方法:色谱条件:色谱柱Kromasil C18(250 mm×4.6 mm,7 μm),流动相:甲醇-水(38∶62),流速0.5 ml/min,检测波长230 nm.比较小鼠灌胃后不同时间时实验组(赤芍胡椒复方)与对照组(赤芍)血浆中芍药苷浓度的差异.结果:芍药苷与血浆中其他成分能很好分离,在5.0～250.0 μg/ml范围内线性关系良好,平均回收率为95.52%;最低检测浓度1.49 μg/ml.实验组小鼠平均血药浓度在60,90 min时明显高于对照组,实验组与对照组有显著差异(P<0.01,P<0.05).结论:在赤芍胡椒复方中,胡椒可提高赤芍主要有效成分芍药苷的血药浓度.     

高效液相色谱法测定当归芍药散不同极性部位中阿魏酸和芍药苷的含量

目的建立当归芍药散不同极性部位中阿魏酸和芍药苷的含量测定方法。方法采用高效液相色谱(HPLC)法测定当归芍药散不同极性部位中阿魏酸和芍药苷的含量,色谱柱为Kromasil 100-5-C18柱(4.6 mm×250.0 mm),流动相为甲醇∶0.2%磷酸溶液,梯度洗脱,流速1 mL/min,阿魏酸、芍药苷的检测波长分别为320,230 nm,进样量10μL,柱温30℃。结果阿魏酸和芍药苷的回归方程分别为Y=3.53×10~4X-4.83×10~2(r=0.999 0),Y=1.50×10~4X-2.51×10~4(r=0.999 9),线性范围分别为6.076～303.800μg/mL和7.448～372.400μg/mL;方法学考察中精密度、稳定性和重复性均符合要求,加样回收率的RSD分别为1.2%和1.1%。含量测定结果显示,除醇提物的水相部分未检出阿魏酸外,其他部分中均存在阿魏酸和芍药苷,且水煎液中阿魏酸、芍药苷含量均最高。结论该法简便、准确、分离效果好,可用于当归芍药散不同极性部位中阿魏酸、芍药苷的含量测定。     

复方妇康安颗粒的质量标准分析

目的 建立复方妇康安颗粒的质量标准.方法 采用薄层色谱法,对复方妇康安颗粒中当归、黄柏、苦参进行定性鉴别;并应用高效液相色谱法测定芍药苷的含量.色谱柱:Kromasil C18(4.6 mm×250 mm,5 μm);流动相:甲醇0.05 mol/L,磷酸二氢钾溶液(40∶ 60);检测波长:230 nm;流速:0.8 ml/min;柱温:35 ℃.结果 芍药苷在0.532～2.66 μg范围内呈良好的线性关系,r=0.9997,平均回收率为98.29%,RSD=0.97%(n=6).结论 该方法简便、准确、可靠,可作为复方妇康安颗粒的质量控制方法.     

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.