四氯苯醌与磺胺甲基异恶唑荷移反应的研究

本文研究了四氯苯醌与磺胺甲基异恶唑的荷移反应。实验表明：四氯苯醌与磺胺甲基异恶唑在硼砂介质中可形成π－π＾＊荷移络合物，络合物的最大吸收波长为３６５ｎｍ，表现摩尔吸光系数是４．８３×１０＾４Ｌ·ｍｌ＾－１·ｃｍ＾－１，络合物组成比为１：１，比尔定律的线性范围为１．８￣３３μｇ／ｍＬ，回归方程为Ａ＝－６．６×１０＾－３＋０．６８６８Ｖ，相关系数ｒ＝０．９９９３，在此基础上初步探讨了荷移反应的机理，并     

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。     

七种合成食用色素的示波极谱测定

七种合成食用色素在三乙醇胺的不同ｐＨ溶液中有良好的极谱峰。在ｐＨ７．６－８．０时苋菜红、日落黄、柠檬黄、果绿、胭脂红和赤鲜红分别在－０．４３，－０．５１，－０．５７，－０．５７．－０．６０和－０．８５Ｖ（ＶＳ．ＳＣＥ，下同）出峰；ｐＨ０．８－１．２时，亮蓝在－０．４１Ｖ出峰。各峰峰形良好，且能明显分开。线性范围赤鲜红是１～１０μｇ／１０ｍｌ，其余六种色素均为５～１００μｇ／１０ｍｌ。相关系数均在０．９９９以上。最低检出限分别为：柠檬黄，苋菜红，赤鲜红０．０５μｇ／ｍｌ；果绿０．０６μｇ／ｍｌ；日落黄０．０８μｇ／ｍｌ；胭脂红，亮蓝０．１２μｇ／ｍｌ。变异系数１．５～９．８％；回收率９６．５～１１０．０％。报道了赤鲜红的测定方法，并发现市售果绿实质是柠檬黄和亮蓝（６＋１）的混和物。方法快速简便，易于推广应用。     

毛细管电泳法分析血清中华法林对映体的浓度

建立了血中华法林对映体的毛细管电泳分析方法。电泳缓冲液由１４０ｍｍｏｌ／Ｌ磷酸盐缓冲液和７ｍｍｏｌ／Ｌ的甲基β－环糊精组成（ｐＨ７．９）。工作电压１３ｋＶ，检测波长２１０ｎｍ。两种对映体Ｓ（－）－华法林及Ｒ（＋）－华法林达到基线分离，在０～５μｇ／ｍｌ范围内呈线性。血中华法林对映体最低检测浓度均为０．０２μｇ／ｍｌ，精密度及回收率均较好。     

四氯苯醌与磺胺甲基异口恶唑荷移反应的研究

本文研究了四氯苯醌与磺胺甲基异口恶唑的荷移反应。实验表明：四氯苯醌与磺胺甲基异口恶唑在硼砂介质中可形成π—π＊荷移络合物，络合物的最大吸收波长为３６５ｎｍ，表现摩尔吸光系数是４．８３×１０４Ｌ·ｍｌ－１·ｃｍ－１，络合物组成比为１∶１，比尔定律的线性范围为１．８～３３μｇ／ｍＬ，回归方程为Ａ＝－６．６×１０－３＋０．６８６８Ｖ，相关系数ｒ＝０．９９９３，在此基础上初步探讨了荷移反应的机理，并用拟定的方法测定了复方新诺明片剂中磺胺甲基异口恶唑的含量，结果令人满意。     

高效液相色谱法测定舒他西林片中氨苄青霉素的血药浓度及药动学研究

采用ＨＰＬＣ－荧光检测法测定舒他西林片中氨苄青霉素的血药浓度，采用ＳｐｈｅｒｉｓｏｒｂＯＤＳ柱，流动相为磷酸盐缓冲液（０．０５ｍｏｌ／Ｌ，ｐＨ＝４．０）－乙腈（７８２２，Ｖ／Ｖ），标准曲线范围０．２２～１３．８９μｇ／ｍｌ，ｒ＝０．９９９７，保留时间为７．３ｍｉｎ，回收率大于９５％，日内和日间差小于７％，最低检测浓度为０．２２μｇ／ｍｌ，无内源性杂质干扰。９名受试者的主要药动学参数：Ｔ１／２＝１．０４±０．２２ｈ，Ｃｍａｘ＝１２．３５±３．１３μｇ／ｍｌ，Ｔｍａｘ＝０．８３±０．４５ｈ，ＡＵＣ＝１９．４９±３．４６μｇｈ／ｍｌ。     

高效液相色谱法测定炎特灵片中磺胺甲基异恶唑和甲…

本文用高效液相色谱法，采用Ｎｏｖａ－ｐａｋＣ１８色谱柱，以非那西丁为内标，乙腈：醋酸钠（２４：７６）为流动相，流速：每分钟１．２ｍｌ，在入２３５ｎｍ处，对炎特灵中的磺胺甲基异恶唑和甲氧苄氨嘧啶含量进行了测定，磺胺甲基异恶唑和甲氧苄氨嘧啶低检出限为０．２ｎｇ和０．３５ｎｇ，并进行了线性关系和回收率的测定。     

反相高效液相色谱法测定洛美沙星的血和尿药浓度

本文报道用反相高效液相色谱法测定血清和尿液中洛美沙星浓度，固定相用Ｃ＿（１８）柱，流动相为甲醇／０．００８Ｍ磷酸盐缓冲液／０．５Ｍ四丁基溴化铵（２５：７５：４，Ｖ／Ｖ／Ｖ）．荧光检测激发波长２８０ｎｍ，发射波长４５５ｎｍ，以外标法定量。洛美沙星的最低检出限为０．０６μｇ／ｍｌ，线性范围为０．１２５－８．μｇ／ｍｌ．线性关系良好（ｒ＝０．９９９９），日内变异系数２．８７％，日间变异系数２．９４％，回收率７５．８％～８０．９％。     

不饱和脂肪酸对肺癌细胞的抑制作用

不饱和脂肪酸（ＬＡ）浓度为２５μｇ／ｍｌ，对人肺腺癌细胞系（ＳＰＣ－Ａ１）细胞和二倍体人胚肺细胞系（ＨＬＦ）细胞抑制率分别为：９８．４±２．２％，１８．０±２．１％（Ｐ＜０．００１）。表现为对恶性细胞的选择性抑制作用。ＳＰＣ－Ａ１对５μｇ／ｍｌ ＬＡ无反应，１μＭ丝裂霉素Ｃ（ＭＭＣ）对ＳＰＣ－Ａ１细胞抑制率为４３．４±２．９％而当用１μｍ ＭＭＣ处理这种对５μｇ／ｍｌ ＬＡ无反应的ＳＰＣ－Ａ１时，     

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     

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.