青梅感冒冲剂中的五指柑和青蒿的薄层色谱鉴别

目的：研究青梅感冒冲剂中五指柑、青蒿的薄层色谱鉴别方法。方法：分别取五指柑药材、青蒿药材、青梅感冒;中剂及阴性制剂的乙酸乙酯提取液,在硅胶薄层板上五指柑以ψ(甲苯：丙酮)=8：2为展开剂展开,青蒿以ψ(苯：乙酸乙酯：水)=5：2：0．1为展开剂展开,在紫外灯(365nm下)检视。结果：在两者供试品色谱中与各自对照药材色谱相应位置上,均有相应的斑点,阴性制剂色谱图中无此斑点。结论：该法专属性强,为该制剂增加质量控制指标提供了实验依据。     

止咳枇杷冲剂中三种中药的薄层色谱鉴别

研究和比较了止咳枇杷冲剂中桑白皮，白前和百部中特征化学成分的提取和薄层色谱鉴别的条件。分别取桑白皮，白前，百部药材和止咳枇杷冲剂及各被鉴别药材阴性制剂的提取液，桑白皮在聚酰胺板上，以醋酸展开，365nm紫外光下观察，得两个蓝绿色特征荧光斑点；白前和百部在硅胶板上，前者以ψ(氯仿：甲醇：水）=2：1：1.5展开，磷钼酸显色，得两个红色斑点，百部以ψ（正己烷：氯仿：甲醇）=5：5：0.2展开。硫酸乙醇显色，得两个棕红色主点；在阴性制剂色谱图中两者均无此类斑点，因此该方法可作为该制剂中这三味中药的鉴别方法。     

止咳枇杷冲剂中枇杷叶和桔梗的薄层色谱鉴别研究

研究止咳枇杷冲剂中枇杷叶和桔梗的薄层色谱鉴别方法。分别取枇杷叶和桔梗药材，制剂及阴性制剂的醋酸乙酯提取液，在硅胶板上前者以ψ（氯仿：甲醇：水）=2：2.25:1.5展开，后者以ψ（正已烷：氯仿：甲醇）=5：4：0.3展开，磷钼酸乙醇溶液显色，在两者供试吕色谱中与各自对照药材色谱相应位置上，分别有相同的蓝绿色特征斑点；阴性制剂色谱图中无此斑点，因此该方法可作为这两味中药的鉴别方法。     

几种常用中草药及制剂的薄层鉴别方法探讨

目的:建立清解片、红梅汤、菩提蜜制剂的鉴别方法。方法:用薄层色谱法鉴别制剂中野菊花、黄牛木、无患子成分。固定相:硅胶G;野菊花流动相为二甲苯-乙酸乙酯-冰醋酸(14∶4∶0.5),喷以5%硫酸乙醇溶液,105℃加热至斑点清晰;黄牛木流动相为苯-乙酸乙酯(7∶3);无患子流动相为氯仿-乙酸乙酯-甲醇-水(15∶40∶20∶10),喷以5%磷钼酸乙醇溶液,105℃加热2min检视。结果:清解片、红梅汤、菩提蜜供试品色谱中与对照药材野菊花、黄牛木、无患子色谱相应的位置上显相同颜色的斑点。结论:本法可用于野菊花、黄牛木、无患子药材及制剂的鉴别。     

粉甘草去除栓皮的净制加工合理性研究和探讨

目的：对比甘草Glycyrrhizae Radix et Rhizoma栓皮与未去栓皮甘草中的化学成分,探讨粉甘草净制加工中去除栓皮的合理性。方法：采用TLC法,分析甘草栓皮与未去栓皮甘草中化学成分的差异,以乙酸乙酯-甲酸-冰醋酸-水（15：1：1：2）为展开剂,10%硫酸乙醇溶液显色,在紫外灯（365nm）下检视。结果：甘草栓皮供试品色谱中,在与未去栓皮甘草供试品色谱和甘草对照药材色谱相应的位置上,均未显相同颜色和大小的荧光斑点。结论：甘草栓皮与未去栓皮甘草中的化学成分有较明显的不同,推测粉甘草在净制加工中去除栓皮是有一定原因的。     

雪奇药酒中雪莲花的薄层色谱鉴别方法的研究

为建立雪奇药酒中雪莲花的专属鉴别反应,实验并比较不同提取方法、不同色谱条件、不同展开系统的鉴别方法。结果,雪莲花用浓氨碱化、三氯甲烷超声提取,以苯-乙酸乙酯-二乙胺(7∶2∶1)为展开剂展开,磷钼酸试液为显色剂显色效果最好,供试品色谱中,在与对照药材色谱相应的位置上,显相同颜色的斑点。该法样品提取简便、主斑点清晰、分离度良好、阴性无干扰、重现性良好,可用于雪莲花及雪奇药酒的质量控制。     

粉甘草去除栓皮的净制加工合理性研究和探讨

目的:对比甘草Glycyrrhizae Radix et Rhizoma栓皮与未去栓皮甘草中的化学成分,探讨粉甘草净制加工中去除栓皮的合理性。方法:采用TLC法,分析甘草栓皮与未去栓皮甘草中化学成分的差异,以乙酸乙酯-甲酸-冰醋酸-水(15:1:1:2)为展开剂,10%硫酸乙醇溶液显色,在紫外灯(365nm)下检视。结果:甘草栓皮供试品色谱中,在与未去栓皮甘草供试品色谱和甘草对照药材色谱相应的位置上,均未显相同颜色和大小的荧光斑点。结论:甘草栓皮与未去栓皮甘草中的化学成分有较明显的不同,推测粉甘草在净制加工中去除栓皮是有一定原因的。     

心可舒胶囊质量标准研究

目的：建立心可舒胶囊的质量标准。方法：采用薄层色谱法对心可舒胶囊中的丹参、山楂、木香、三七进行定性鉴别；并采用高效液相色谱法测定制剂中葛根素的含量。结果：薄层色谱中，供试品溶液色谱在与对照药材或对照品色谱相应位置上出现相同颜色的斑点，阴性无干扰。高效液相色谱法能准确测定出制剂中葛根素的含量，葛根素在11．024-176．384μg范围内呈良好的线形关系（1=0．9999），其平均回收率为99．55％，RSD为1．48％。结论：薄层色谱法呈现斑点清晰、特异性强，可用于心可舒胶囊的鉴别，高效液相色谱法简便快速，精密度高、准确度好，可用于该药的质量控制。     

复方岗松洗液的薄层色谱研究

目的:对复方岗松冼液中的药材进行定性研究,以便更好地控制产品质量.方法:对方中主要药味苦豆草、岗松、黄柏、冰片、红花五味药用薄层色谱法进行定性研究,展开系统分别为苯-丙酮-醋酸乙酯(7:3:3)、石油醚(60℃～90℃)-醋酸乙酯(5:1)、苯-醋酸乙酯(19:1)、正丁醇-冰醋酸-水(7:1:2)及环已烷-乙酸乙酯(5:3).结果:供试品色谱在对照品或对照药材色谱相应位置上显相同颜色斑点,所得斑点清晰,专属性强,重现性好,分离度良好,阴性样品无干扰.结论:所建立的方法简便、结果准确、重复性好,可用于产品的质量控制.     

新生儿冲剂鉴别方法改进

新生化冲剂是根据生化汤改剂型而制成的一种妇科良药 ,质量标准载于《卫生部药品标准》中药成方制剂第五册。原标准鉴别 2 )项系鉴别当归中成分阿魏酸 ,检验中发现该方法问题有 :方法中加适量硅藻土研磨均匀 ;供试品处理需经 2 1次萃取 ,操作极为繁琐 ,且试剂浪费严重 ;展开系统 ,展开后可见“脱混”现象 ,色谱斑点变形移位 ;用苯做洗液及展开剂 ,对人体有毒害。据上所述 ,拟对该鉴别项进行改进。1　仪器及试药紫外光灯 (365nm) ,SB52 0 0超声波清洗器。所用试剂均为分析纯。当归对照药材及阿魏酸对照品均购自中国药品生物制品检定所。新生…     

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.