超高效液相色谱法测定复方丹参片中三种皂苷类成分的含量

目的：建立复方丹参片中三七皂苷R1、人参皂苷Rg1、人参皂苷Rb1的含量测定方法。方法：采用超高效液相色谱法,色谱条件：Thermo Scientific Hypersil ODS C18（150.0 mm ×2.1 mm,3μm）色谱柱;流速为0.2 mL·min-1;柱温30℃;检测波长203 nm;进样量1μL;以乙腈（A）和水（B）为流动相梯度洗脱：0 min（20%A）→10 min（39%A）→12 min（46%A）→15 min （20%A）。结果：复方丹参片中三七皂苷R1、人参皂苷Rg1、人参皂苷Rb1分别在0.0216～0.4320μg、0.045～0.900μg、0.0302～0.604 0μg范围内呈良好的线性关系;平均加样回收率分别为97.28%、97.58%、97.77%。结论：该方法高效、快速、准确,可为复方丹参片的质量控制提供参考。     

HPLC法测定复方参龙胶囊中5个功效成分的含量

目的 建立高效液相色谱法(HPLC)测定复方参龙胶囊5个功效成分三七皂苷R1、人参皂苷Rg1、人参皂苷Re、人参皂苷Rb1、人参皂苷Rd的含量.方法 采用Shim-pack C18(250 mm×4.6 mm,5μm)色谱柱,以乙腈(A)-0.1％磷酸水溶液(B)为流动相,梯度洗脱(0-25 min,85％-80％B;...     

超高效液相色谱法测定三七中人参皂苷Rg1、人参皂苷Rb1和三七皂苷R1的含量

目的建立超高效液相色谱（UPLC）法测定三七中人参皂苷Rg1、人参皂苷Rb1和三七皂苷R1的含量。方法采用ACQUITY BEH C18（2.1 mm×50 mm,1.7μm）色谱柱;流动相为乙腈-水,梯度洗脱;流速为0.4 mL·min^-1;检测波长为203 nm;柱温为35℃;进样体积为2μL。结果三七中人参皂苷Rg1、人参皂苷Rb1和三七皂苷R1分别在0.116 8～1.168μg、0.123 6～1.236μg、0.030 0～0.300μg范围内与相应峰面积呈良好线性关系,平均加样回收率分别为100.1%、99.3%、99.9%,RSD值分别为0.4%、0.6%、1.0%（n=6）。结论较之HPLC法,UPLC法在不影响分离效果的情况下可大大提高三七中三七皂苷R1、人参皂苷Rg1、人参皂苷Rb1的分析速度,改善分析效果;同时可减少溶剂的消耗。UPLC法可作为替代传统HPLC法的一种更为方便、快捷、可靠的方法。     

HPLC测定骨痨敌薄膜衣片中皂苷类成分的含量

目的 建立骨痨敌薄膜衣片中三七皂苷R1、人参皂苷Rg1、人参皂苷Rb1和黄芪甲苷的含量测定方法.方法 采用高效液相色谱(HPLC)法,色谱柱为Hypersil GOLD C18柱(250 mmx4.6 mm,5μm),流动相为乙腈-水,梯度洗脱,流速1.0 mL/min,检测波长203 nm,柱温25℃,进样量5μL.结果 三七皂苷R1、人参皂苷Rg1、人参皂苷Rb1和黄芪甲苷分别在0.108-1.62 μg(r=0.999 7)、0.409-6.135 μg(r=0.999 8)、0.108 8～1.632 μg(r=0.999 9)、0.503-7.545 μg(r=0.999 7)范围内线性关系良好;平均回收率分别为99.74％、98.87％、99.31％、98.66％,RSD分别为1.31％、1.47％、0.96％、1.45％.结论 本方法简便可靠,重复性好,可用于骨痨敌薄膜衣片中三七皂苷R1、人参皂苷Rg1、人参皂苷Rb1和黄芪甲苷的质量分数测定.     

UPLC测定三七总皂苷微丸中5种皂苷类成分含量研究

目的经建立超高效液相色谱法(UPLC)法测定三七总皂苷微丸中三七皂苷R1、人参皂苷Rg1、人参皂苷Re、人参皂苷Rb1、人参皂苷Rd 5种皂苷类成分含量的方法,并测定6批样品的各成分含量。方法采用ACQUITY UPLC~?BEH C-18(2.1 mm×50 mm,1.7μm)色谱柱,以乙腈(C)-水(D)为流动相梯度洗脱(0～1.7 min,20%C;1.7～4.83 min,20%C～46%C;4.83～6.08 min,46%C～33%C;6.08～6.70 min,33%C～20%C;6.70～11.00 min,20%C),检测波长为203 nm,流速为0.5 mL·min~(-1),柱温为25℃。结果三七总皂苷R1、人参皂苷Rg1、人参皂苷Re、人参皂苷Rb1、人参皂苷Rd分别在67.74～237.09、250.44～876.54、257.28～900.48、202.70～709.46、6.96～41.76 mg/mL范围内线性关系良好(r≥0.999),平均加样回收率分别为105.2%、104.33%、94.63%、93.65%、106.52%;6批三七总皂苷微丸各成分含量均值分别为1.55%、6.55%、0.67%、6.02%、1.40%。结论建立的含量测定方法准确简便、重复性好,6批三七微丸样品含量接近,工艺稳定。     

人参和三七HPLC特征图谱研究

目的:建立人参与三七的高效液相色谱法(HPLC)特征图谱分析方法 ,区别人参和三七药材粉末。方法 :采用HPLC法,色谱柱:Kromasil-C18柱(4.6 mm×250 mm,5μm),流动相:乙腈-水(0.1%磷酸),梯度洗脱,流速0.9 m L·min-1,柱温25℃,检测波长203 nm,分析时间75 min。采用"中药色谱指纹图谱相似度评价系统(2004A版)"进行相似度分析;采用Matlab 7.0和SPSS 16.0软件进行主成分分析和聚类分析。结果 :分别得到人参和三七的HPLC特征图谱及共有模式图,通过对比,两者共有峰为16个,分别为a~p,并指认了其中的人参皂苷Rg1、人参皂苷Re、人参皂苷Rf、人参皂苷Rb1、人参皂苷Rd 5个共有峰;人参中的特征峰为1~9,三七中的特征峰为10~32;相似度分析结果显示,人参的相似度值在0.941~0.992,三七的相似度值在0.755~0.963;主成分分析和聚类分析将供试药材分为两大类。结论:该分析方法可以快速简便地区别人参和三七药材粉末,并为人参和三七药材的质量控制标准制定提供了依据。     

UPLC测定PNS及血塞通注射液5个主要成分含量

目的〓建立三七总皂苷及血塞通注射液超高效液相色谱（UPLC）测定的方法。方法〓采用Waters Guard column色谱柱（50mm×2.1mm,1.7μm）;流动相：[水–乙腈]进行梯度洗脱;体积流量0.5mL/min;检测波长203nm;柱温25℃;进样量2μL。结果〓三七总皂苷及血塞通注射液中的5个成分在0.002～0.817μg与峰面积呈良好的线性关系（r＝0.9999）,平均回收率为101.5%,RSD值为1.31%。结论〓建立的UPLC法操作简便、结果可靠、重复性好、专属性强,可用于三七总皂苷及血塞通注射液中5个主要成分的含量测定。     

RP-HPLC法测定三七总皂苷缓释片中人参皂苷Rg1的含量

目的 建立三七总皂苷缓释片中人参皂苷Rg1的含量测定方法.方法 采用RP-HPLC法,色谱柱为Hypersil ODS C18柱(4.6mm×250mm,5μm);流动相:以乙腈-水梯度洗脱;流速: 1.0mL/min;紫外检测波长:203nm;柱温:25℃.结果 人参皂苷 Rg1的线性范围为0.1028-0.5140mg/mL;相关系数为0.9999;加样平均回收率为97.74%(RSD=0.79%).结论 该法操作简便,结果准确,重复性好,可作为该制剂的质量控制方法.     

反相高效液相色谱法测定三七总皂苷脉冲控释片中人参皂苷Rg1含量

目的 建立三七总皂苷脉冲控释片中人参皂苷Rg1的含量测定方法.方法 采用RP - HPLC法,色谱柱为Agilent SB - C18柱(250mm×4.6mm,5μm)；流动相:乙腈-水(20:80)；检测波长:203nm；柱温:25℃；流速:1.0 mL/min；进样量:20μL.结果 人参皂苷Rg1的线性范围为0...     

丹参药材超高效液相色谱指纹图谱研究

[目的]建立丹参药材中水溶性成分丹酚酸类和脂溶性成分丹参酮类的超高效液相(UPLC)指纹图谱方法,为丹参的质量控制提供快速、科学的方法.[方法]以Acquity C18 BEH(2.1mm×100 mm,1.7μm)色谱柱,乙腈(A)-体积分数0.4%甲酸溶液(B)梯度洗脱,90%～50%A,0～10 min;75%A,15 min.检测波长280nm,柱温30℃,流速0.5mL/min.[结果]在15 min内得到丹参药材水溶性和脂溶性成分的指纹图谱,峰容量85.并采用液质连用技术(HPLC-DAD-ESI/MSn)鉴定了其中的20个特征峰.[结论]UPLC指纹图谱方法具有灵敏、快速、简便、准确等特点,适合于丹参药材及其制剂的指纹图谱研究和质量控制.     

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.