反相高效液相色谱法测定乌金胶囊中延胡索乙素

目的建立反相高效液相色谱法测定乌金胶囊中延胡索乙素含量,并应用于该制剂质量控制。方法使用Agilent Extend-C18柱(4.6mm×250mm,5μm),甲醇-0.1%磷酸(以三乙胺调pH值至6.0)=5545为流动相,流速1.0ml/min,柱温35℃,检测波长280nm,测定5批次乌金胶囊中延胡索乙素含量。结果延胡索乙素在1.09～21.8μg/ml(r=0.999 9)范围内呈良好线性关系,平均加样回收率为98.62%,RSD=1.26%(n=6)。5批次乌金胶囊中延胡索乙素含量在15.87～50.57μg/g。结论反相高效液相色谱法灵敏、准确,适用于乌金胶囊中延胡索乙素的质量控制。     

高效液相色谱法测定痛经康胶囊中延胡索乙素的含量

目的:建立以高效液相色谱法测定痛经康胶囊中延胡索乙素的含量方法。方法:色谱柱为AgilentHypersil ODS C18(250mm×4.6mm,5μm),流动相为甲醇-0.04%磷酸溶液(50∶50),流速为1.0mL·min-1,检测波长为285nm,柱温30℃。结果:延胡索乙素检测浓度在0.0245-0.245mg·mL-1范围内的线性关系良好(r=0.9999);平均回收率为98.26%,RSD=1.10%(n=6)。结论:该方法简便、快速、准确,可用于痛经康胶囊的质量控制。     

HPLC法测定腰痹通胶囊中延胡索乙素的含量

目的建立腰痹通胶囊中延胡索乙素的含量测定方法。方法采用高效液相色谱法,Phenomenon Luna-C18色谱柱(250 mm×4.6 mm,5μm),流动相为甲醇-0.1%磷酸(三乙胺调节PH值至6.0)(55:45);检测波长为280nm,进样量10μl,柱温30℃,流速1.0 ml/min。结果延胡索乙素在2.038-20.380μg/ml范围内,呈良好的线性关系(r=1),回收率为98.0%,RSD为0.7%(n=9);结论本方法简便、准确。方法的稳定性、重复性良好,可作为腰痹通胶囊的质量控制。     

HPLC同时测定复方防己注射液中延胡索乙素、粉防己碱和防己诺林的含量

目的:建立同时测定复方防己注射液中延胡索乙素、粉防己碱和防己诺林的含量的方法。方法:色谱条件Diamonsil C_(18)(4.6 mm×150 mm,5μm),流动相为乙腈-0.2%三乙胺梯度洗脱,检测波长为280 nm。结果:延胡索乙素、粉防己碱和防己诺林碱线性范围分别为0.5556~4.630μg,8.772~73.10μg和5.133~42.775μg(r=0.9999)。方法回收率分别为98.9%,102.5%,100.6%(RSD2%)。结论:本方法准确,简便,可为复方防己注射液中延胡索乙素、粉防己碱和防己诺林的含量测定方法提供依据。     

高效液相色谱法测定骨痹散中延胡索乙素的含量

目的建立高效液相色谱法测定骨痹散中延胡索乙素含量的方法。方法 DIONEX-C18色谱柱(250mm×4.6mm,5μm),乙腈-0.1%磷酸溶液(25:75)为流动相,柱温为30℃,流速为1.0m L/min,进样量10μL,检测波长为300nm。结果延胡索乙素在10.4208-74.1385μg表现良好线性关系(r=0.9997),平均加样回收率为99.1143%,RSD=0.6623%。结论本方法准确、简便、快速,且重复性好,可用于骨痹散中延胡索乙素含量测定及质量控制。     

分析和探讨不同配伍对延胡索中延胡索乙素含量的影响

目的 考察不同配伍对延胡索中延胡索乙素含量的影响,探讨中药复方配伍的合理性.方法 采用H P L C法测定延胡索单味药,延胡索分别配伍白芷、当归、川楝子的4种水提液中延胡索乙素的含量,色谱柱HypersilODS2(250mm×4.6 mm,5μm),流动相为乙腈-0.1%磷酸溶液(三乙胺调pH 5.3) (28:72),流速为1 mL/min,检测波长为280 nm,柱温为35℃.结果 延胡索与白芷、当归配伍后其有效成分延胡索乙素的含量降低,与川楝子配伍后其有效成分延胡索乙素的含量升高.结论 不同配伍对延胡索中延胡索乙素的含量有明显影响.     

HPLC法测定壮骨止痛颗粒中延胡索乙素的含量

目的:采用高效液相色谱法测定壮骨止痛颗粒中延胡索乙素的含量。方法:采用Symmetry C18色谱柱(150 mm×3.9 mm,5μm),以乙腈-0.1%磷酸溶液(三乙胺调pH值至6.5)(34∶66)为流动相,流速为0.8 mL.min-1,检测波长为280 nm,柱温为室温。结果:延胡索乙素在0.005～0.025 mg.mL-1范围内呈良好线性关系(r=0.999 6),平均回收率为99.5%(n=6),RSD为1.35%。结论:该方法操作简便,精密度好,结果准确可靠,适用于壮骨止痛颗粒中延胡索乙素的含量测定。     

高效液相色谱法测定延胡索中延胡索乙素、延胡索丙素、小檗碱的含量及不同炮制品稳定性研究

目的探讨高效液相色谱法(HPLC)测定延胡索中有效成分延胡索乙素、延胡索丙素、小檗碱含量,分析传统炮制方式(醋制)对延胡索成分稳定性的影响。方法采用HPLC法,色谱柱Agilent TC-C18(250 mm×4.6 mm,5.0μm),流动相:乙腈:0.1%醋酸水溶液(三乙胺溶液调节p H为6.4)梯度洗脱,检测波长:282 nm,流速:1.0 ml/min。以延胡索乙素含量为指标,采用均匀设计法,以温度、醋量为因素,对延胡索的传统炮制进行研究。结果 1延胡索丙素在0.05~0.50μg/ml、延胡索乙素在0.20~2.00μg/ml、小檗碱在0.02~0.20μg/ml浓度范围内线性关系良好,平均加样回收率分别为96.54%、98.76%、99.48%;2延胡索生品经药典规定步骤处理后,生物碱含量降低一半左右,不同炮制过程对原药材中生物碱含量影响较少;3在炮制温度130℃,用醋量20%~50%条件下,醋制延胡索炮制品水煎液延胡索乙素的含量最高,稳定性较好。结论 HPLC测定延胡索中三种成分的含量,方法操作简单,重复性好,为延胡索质量标准的制定提供了科学依据,同时不同炮制品对延胡索中生物碱的含量影响较小,传统的炮制(醋制)有可能提高延胡索中延胡索乙素的稳定性。     

HPLC法测定灰绿黄堇中延胡索乙素的含量

目的:建立测定灰绿黄堇药材中延胡索乙素含量的HPLC方法.方法:用甲醇回流提取灰绿黄堇中延胡索乙素,以Sinochrom ODS-BP(4.6mm×200mm,5μm)为色谱柱;流动相为甲醇-0.1%磷酸(用三乙胺调pH值6.0)(75∶25);检测波长:280 nm;流速:1.0mL·min-1.结果:在此色谱条件下,灰绿黄堇药材延胡索乙素可以得到很好的分离,延胡索乙素在6.7～133.6μg·mL-1,间呈线性关系(r=0.9998).回收率为98.2%,RSD为1.51%.结论:本方法简便、结果准确可靠,适合灰绿黄堇中延胡索乙素的含量测定.     

RP-HPLC法测定络通舒胶囊中延胡索乙素的含量

目的:测定络通舒胶囊中延胡索乙素的含量。方法:采用TLC法对络通舒胶囊中的玄参、白芥子进行定性鉴别;运用HPLC法测定络通舒胶囊中延胡索乙素的含量。结果:在4.136~24.68μg范围内延胡索乙素峰面积与进样量呈良好的线性关系,r=0.9997;样品加样回收率为98.80%,RSD为1.82%。结论:方法简便快速、结果准确,可有效控制络通舒胶囊的质量。     

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.