薄层－比色法测定马加木中木脂素甙的含量

为了扩大药材资源，研究了马加木中阿拉伯糖木脂素甙含量及其测定方法。结果，在硅胶Ｇ薄层板展开，浓硫酸显色法，０～２２０μｇ范围内呈良好的线性关系，相关系数为０．９９９３，平均回收率为９６．３４±２．４９，变异系数为２．５８％。马加木不同部位中，树皮２１４．５６μｇ／ｇ，树脂２４７．１４μｇ／ｇ，木质部２１１．９２μｇ／ｇ，４３．７４μｇ／ｇ，果实０μｇ／ｇ。从而为树枝、木质部的入药，提供了理论依据。     

环丙沙星注射液的抗菌作用

环丙沙星注射液对常见致病菌的ＭＩＣ为：绿脓杆菌０．６２５μｇ／ｍＬ，大肠杆菌０．０３９μｇ／ｍＬ，脑膜炎球菌０．３１３μｇ／ｍＬ，金黄色葡萄球菌０．６２５μｇ／ｍＬ，伤寒杆菌０．０３９μｇ／ｍＬ，肺炎球菌０．１２５μｇ／ｍＬ，溶血性链球菌０．６２５μｇ／ｍＬ．环丙沙星注射液对常见致病菌的ＭＢＣ为：绿脓杆菌２．５μｇ／ｍＬ，脑膜炎球菌１．２５μｇ／ｍＬ，大肠杆菌０．１５６μｇ／ｍＬ，伤寒杆菌０．１５６μｇ／ｍＬ，肺炎球菌２．５μｇ／ｍＬ，溶血性链球菌１．２５μｇ／ｍＬ，金黄色葡萄球菌１．２５μｇ／ｍＬ．体内感染治疗试验对接种大肠杆菌０．５×０７个／只静脉给药的ＥＰ５０为（０．７８７±０．１２９）ｍｇ／ｋｇ，对接种肺炎链球菌０．８×１０６个／只静脉给药的ＥＰ５０为（３．３１３±０．５６７）ｍｇ／ｋｇ．     

白桂木凝集素、红桂木凝集素和Jacalin对人外周血中淋巴细胞激活的研究

以不同浓度的凝集素作为刺激剂，研究人外周血中的淋巴细胞的激活效应。结果白桂木凝集素促淋转浓度为１．２μｇ／ｍｌ，转化串７６％；红桂木凝集素和Ｊａｃａｌｉｎ的促淋转浓度为０．３μｇ／ｍｌ，转化率分别是６７％和８０％。在相同的条件下，对照ＰＨＡ的促淋转浓度是１６８μｇ／ｍｌ。几种凝集素的促转高峰均在７２ｈ出现。     

4种抗菌药物对幽门螺旋菌体外抗菌活性的测定

本文采用琼脂倍比稀释法测定了４种抗菌药物对幽门螺旋菌（ＨｅｌｉｃｏｂａｃｔｅｒＰｙｌｏｒｉ，ＨＰ）的ＭＩＣ。枸橼酸秘对４２株ＨＰ的ＭＩＣ范围为５－１００μｇ／ｍｌ，ＭＩＣ＿（５０）为２０μｇ／ｍｌ，ＭＩＣ＿（９０）为５０μｇ／ｍｌ；氨苄青霉素和先锋霉素Ｖ对３２株ＨＰ的ＭＩＣ范围分别为０．００３９－０．１２５μｇ／ｍｌ及０．００２０－０．２５μｇ／ｍｌ，ＭＩＣ＿（５０）分别为０．０１５６μｇ／ｍｌ及０．０３１３μｇ／ｍｌ，ＭＩＣ＿（９０）为０．０６２５μｇ／ｍｌ；氟哌酸对２６株ＨＰ的ＭＩＣ范围为０．５－１６μｇ／ｍｌ，ＭＩＣ＿（５０）为２μｇ／ｍｌ，ＭＩＣ＿（９０）为１６μｇ／ｍｌ。枸橼酸铋对ＨＰ的ＭＩＣ范围较大，５％菌株ＭＩＣ为１００μｇ／ｍｌ。对其它三药ＭＩＣ范围较小，浓度较低，说明ＨＰ对以上药物均敏感，但对枸橼酸铋可能存在耐药菌株。     

人参及人参皂甙对荷瘤小鼠血清中表皮生长因子含量的影响

给Ｃ５７ＢＬ／６小鼠移植Ｌｅｗｉｓ肺癌细胞（２×１０＾７）２周后，以放射免疫法测定其血清中表皮生长因子（ＥＧＦ）含量，肿瘤组为０．２８±０．０９μｇ／Ｌ，正常鼠组为０．１８±０．１１μｇ／Ｌ，移植肿瘤后服用人参煎剂组（人参组）为０．１６±０．１０μｇ／Ｌ，移植肿瘤后服用人参皂甙组（人参皂甙组）为０．２９±０．１１μｇ／Ｌ。肿瘤组鼠的ＥＧＦ含量明显高于正常鼠，人参组明显低于肿瘤组鼠，人参皂甙组与肿瘤     

钩吻碱类提取物对小鼠脾细胞增殖反应的影响

钩吻碱类提取物在浓度大于１．２５μｇ／ｍｌ以上时对混合淋巴细胞培养反应（ＭＬＲ）均有不同程度的抑制作用，具有统计学意义（Ｐ＜０．０５）的最低抑制浓度为２．５μｇ／ｍｌ，抑制率为１８．３％。单独采用Ｃ５７ＢＬ／６ｊ小鼠脾细胞进行实验，促有丝分裂剂为细菌脂多糟（ＬＰＳ５μｇ／ｍｌ），在钩吻碱类提取物浓度为４０μｇ／ｍｌ才出现抑制作用（Ｐ＜０．０５），抑制率为１８％，改用刀豆蛋白Ａ（ＣｏｎＡ２μｇ／ｍｌ）刺激，钩吻碱类提取物最低抑制浓度为２０μｇ／ｍｌ，抑制率为１２．４％（Ｐ＜０．０５）．脾细胞先经ＣｏｎＡ活化．后用白细胞介素２（５ｕ／ｍｌ）维持培养，此时钩吻碱类提取物的最低抑制浓度为４０μｇ／ｍｌ．抑制率为１７．１％（Ｐ＜０．０５）。     

1,24（OH）2D3在继发性甲状旁腺功能亢进中的应用

为抑制慢性肾衰维持性血透患者甲状旁腺激素（ＰＴＨ）的产生及防治肾性骨病，对４８例维持性血透患者随机分组使用罗钙全（１，２５（ＯＨ）２Ｄ３），Ａ组０．２５μｇ／日，Ｂ组０．５μｇ／日，Ｃ组０．７５μｇ／日，均连铸３个月，结果提示：罗钙全０．５μｇ／日较为合适；０．２５μｇ／日，对控制血ＰＴＨ水平效果欠佳，如用量过大０．７５μｇ／日，易引起钙磷乘积增加。     

胃癌与微量元素的关系

测定正常胃３０例、胃癌４３例组织中Ｃｕ、Ｆｅ、Ｚｎ、Ｍｎ、Ｓｅ５种微量元素含量。正常胃Ｃｕ３．１７１４μｇ／ｇ，Ｆｅ１２１．７８７μｇ／ｇ，Ｚｎ８８．３４９μｇ／ｇ，Ｍｎ０．４２６５μｇ／ｇ，Ｓｅ０．２０５６μｇ／ｇ。胃癌Ｃｕ４．２８６４μｇ／ｇ，Ｚｎ７２．５７９μｇ／ｇ，与正常组织比较均有显著性差异（Ｐ＜０．０５）；Ｆｅ１８０．８４２μｇ／ｇ，有高度显著性差异（Ｐ＜０．０１）；Ｍｎ０．５３３６μｇ／ｇ，Ｓｅ０．２３４０μｇ／ｇ，无差异（Ｐ＞０．０５）；Ｃｕ／Ｚｎ比值高于正常组（Ｐ＜０．０５）。揭示了胃癌组织中微量元素的变化规律，为胃癌的诊治提供了新途径。     

珍珠丸—1和珍珠丸—2清除和抑制自由基的实验研究

本文报道珍珠丸－１（Ｚｈｅｎ－１）和珍珠丸－２（Ｚｈｅｎ－２）清除和抑制自由基的作用。结果显示Ｚｈｅｎ－１对０２＾－的ＩＣ５０为１１５．７μｇ／ｍｌ，ＳＣ５０为１１１．５μｇ／ｍｌ，对ＯＨ的ＩＣ５０为７４７μｇ／ｍｌ，ＳＣ５０为１１２１μｇ／ｍｌ；Ｚｈｅｎ－２对０２＾－的ＩＣ５０为６６．０μｇ／ｍｌ，ＳＣ５０为８２．４μｇ／ｍｌ，对ＯＨ的ＩＣ５０为６６０μｇ／ｍｌ，ＳＣ５０为６５２μｇ／ｍｌ。提增     

用RP—HPLC法分析地尔硫Zhuo在兔体内的药动学及组织分布

以尼群地平为内标，用反相高效液相色谱法（ＲＰ－ＨＰＬＣ）测定兔口服地尔硫Ｚｈｕｏ后血浆和组织器官的药物浓度。药动学符合二房室模型。主要参数：Ｔ１／２（ａ）＝０．５１ｈ，Ｔ１／２（β）＝６．１１ｈ，Ｔ１／１／（ｋａ）＝０．２５ｈ，Ｔ（ｐ）＝０．５２ｈ，口服２ｈ后在胆汁、血、脾、心、肾、肝、大脑和小脑药物浓度分别为：０．５５９ｍｇ／Ｌ、０．３７５ｍｇ／Ｌ、４．５６２μｇ／ｇ、０．７７１μｇ／ｇ、１．０     

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.