反相高效液相色谱法测定桅子中京尼平甙和京尼平的含量

应用高效液相色谱法同时测定了栀子中京尼平甙和京尼平的含量。采用YWG -C18柱 ,0 0 5mol/L磷酸氢二钠—甲醇 ( 72∶2 8) ,用磷酸调节pH6 80为流动相 ,于 2 4 0nm波长处检测 ,京尼平甙和京尼平的平均加样回收率分别为 99 10 % ,98 2 8% ,RSD分别为 1 0 5% ,1 2 1% (n=5)。本法简单、准确、重现性好     

高效液相色谱法测定栀子组分中栀子苷含量

目的利用高效液相色谱法以栀子苷为指标对栀子组分进行定量分析,建立栀子组分的含量测定方法。方法采取反相高效液相色谱法,利用C18色谱柱,以乙腈∶水(15∶85)为流动相,在238 nm波长下测定栀子组分中栀子苷含量。结果在上述测定条件下,栀子苷在0.49～7.79μg范围内线性关系良好。测定方法重复性良好,RSD=1.15%(n=6),栀子组分中栀子苷的平均回收率=100.06%(n=5),RSD=1.38%。结论所建立的方法准确性、灵敏度、重复性高,简便,准确,易操作,可作为栀子组分的质量控制方法,色谱法为组分提供有意义的方法学参考。     

清热解毒口服液质量标准的研究

目的:建立清热解毒口服液的质量控制方法,以提高其质量标准.方法:采用薄层色谱法对方中主要药味金银花、栀子、连翘、知母、麦冬、玄参进行定性鉴别研究,采用高效液相色谱法测定口服液中主要有效成分黄芩苷的含量.结果:薄层色谱定性鏊剐的特征斑点清晰,专属性强,Rf值适中,阴性对照无干扰;HPLC法测定黄芩苷含量在0.0708 μg-0.35406 pbg范围内线性关系良好(r=0.9996,n=6),平均回收率为99.6%(RSD=2.8%,n=6).结论:该方法简便可靠,专属性强,重现性好.能较全面反映该制剂内在质量,可用于该制剂的质量控制.     

清热镇惊散定性定量方法研究

目的：建立清热镇惊散的定性定量方法。方法：采用薄层色谱法对方中黄连、青黛进行了定性鉴别,同时采用高效液相色谱法测定了制剂中栀子苷的含量,色谱柱为迪马C18（4.6 mm×150 mm,5μm）,流动相为乙腈-水（13∶87）,检测波长为238 nm。结果：定性鉴别薄层色谱特征明显,含量测定栀子苷在24.58~73.74μg范围内呈良好的线性关系（r=0.9996）,平均回收率为99.72%,RSD 0.98%（n=6）。结论：建立的定性定量方法可控制制剂的质量。     

中药栀子提取物质量标准研究

目的 研究中药栀子提取物的质量控制方法.方法 通过薄层色谱法(TLC),水分、炽灼残渣、重金属、砷盐检查,紫外分光光度法和高效液相色谱法(HPLC)对栀子提取物进行质量控制,并进行指纹图谱主要色谱峰的指认.结果 薄层色谱供试品与对照品在相同的位置上显相同颜色斑点,阴性无干扰.各检查项结果均符合药典要求.栀子提取物中总环烯醚萜苷在5.592～35.712 μg线性良好(r=0.999 9),高、中、低浓度加样回收率分别为98.34%、100.67%、101.07%,RSD分别为2.60%、1.47%、1.20%(n=3);栀子提取物中栀子苷在0.228～1.140 μg线性良好(r= 0.999 9),高、中、低浓度加样回收率分别为104.04%、100.97%、95.94%,RSD分别为0.17%、0.58%、0.84%(n=3).结论 通过TLC和HPLC-MS可定性鉴别栀子提取物中的各主要成分,紫外分光光度法可定量控制总环烯醚萜苷的含量,HPLC可定量控制栀子提取物中栀子苷的含量,准确度高,重现性好,操作便捷.     

蒙药哈尼雅登-11中栀子苷含量的测定

目的：建立测定蒙药哈尼雅登-11中栀子苷含量的方法。方法：采用高效液相色谱法（HPLC）测定蒙药哈尼雅登-11中栀子苷的含量。结果：栀子苷在5.030～50.30μg/mL范围内呈良好的线形关系,回归方程Y=4418.1＋1738341.1 X（r=0.9998）;平均回收率为97.86%,RSD为0.47%。结论：该方法简便、灵敏、准确、重现性好,可用于蒙药哈尼雅登-11中栀子苷的含量测定。     

高效液相色谱法同时测定沙日-嘎-4中栀子苷和盐酸小檗碱的含量

目的:采用高效液相色谱法同时测定蒙药沙日-嘎-4中栀子苷、盐酸小檗碱的含量。方法:Kromasil C18色谱柱(4.6 mm×250 mm 5μm),乙腈-0.2%磷酸水溶液梯度洗脱,流速1 ml/min,柱温30℃,检测波长为238 nm(栀子苷)、343 nm(盐酸小檗碱)。结果:栀子苷、盐酸小檗碱的线性范围分别为5.8~52.2μg/ml(r=0.9999),2.6~23.4μg/ml(r=0.9997);栀子苷的平均加样回收率为100.53%,RSD为0.95%(n=6);盐酸小檗碱的平均加样回收率为100.34%,RSD为1.36%(n=6)。结论:采用本研究方法同时测定沙日-嘎-4中栀子苷、盐酸小檗碱的含量,结果准确,重复性、回收率好,可用于蒙药复方制剂沙日-嘎-4的质量评价和控制。     

浅谈应用高效液相色谱法测定羚羊清肺颗粒中栀子苷含量的方法及临床价值

目的 :探讨分析应用高效液相色谱法测定羚羊清肺颗粒中栀子苷含量的方法及临床价值。方法 :应用高效液相色谱法测定羚羊清肺颗粒中栀子苷的含量,采用C18色谱柱,流动相为乙腈-水(15:85),流速为1.0ml·min-1,检测波长为238nm。结果 :标准曲线的相关系数(r)为0.9996,平均回收率(n=6)为100.1%,RSD为1.22%。结论 :应用高效液相色谱法测定羚羊清肺颗粒中栀子苷含量的测定加过较为准确,具有重现性良好、简单易行等优点,具有较高的临床价值。     

清利通胶囊质量标准研究

目的建立清利通胶囊的质量标准。方法采用薄层色谱法对方中的栀子、萹蓄、大黄、川木通、甘草进行定性鉴别研究,用高效液相色谱（HPLC）法测定方中主要有效成分栀子苷的含量。结果薄层色谱鉴别分离度好,专属性强;含量测定平均回收率为99.3%,RSD为1.8%.结论方法简便可靠,专属性强,重现性好,可用于该制剂的质量控制。     

清疏口服液成分测定

目的:探讨测定清疏口服液中各成分的方法.方法:采用薄层色谱法对制剂中的金银花、连翘、栀子进行定性鉴定;采用高效液相色谱法对制剂中的黄芩苷进行定量检测.结果与结论:薄层色谱法可以准确鉴别清疏口服液中的金银花、连翘和栀子.采用高效液相色谱法测定黄芩苷含量,线性范围0.143～0.683 μg,线性关系Y=0.165 35.522X,r=0.999 5(P＜0.05),精密度较高,重现性好,回收率达99.51%.上述方法简便、可靠,适用于清疏口服液制剂的质量控制.     

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.