m—β—羟乙基砜硝基苯催化加氢制m—β—羟乙基砜苯胺

以Ｐｄ／Ｃ为催化剂,考察了温度、压力、溶剂、溶剂量、溶液ｐＨ值、搅拌速度及反应原料对ｍ－β－羟乙基砜硝基苯催化加氢制,ｍ－β－羟乙基苯胺的影响。表明以自制的ｗ＝０．０２Ｐｄ／Ｃ为经剂,经提纯的工厂中间体ｍ－β－羟乙基砜硝基苯为原料,在６５℃、３．５ＭＰａ、乙醇为溶剂、原料：乙醇：催化剂＝１：１：０．０５（ｍ／ｍ）、溶液ｐＨ值７～８、搅拌速度８００ｒ／ｍｉｈ的条件下反应２ｈ,反应得率可达９９．７％＾     

体外循环中肾功能改变及其与TXA_2／PGI_2失衡关系的临床研究

应用α_１－微球蛋白（α_１－ＭＧ）及β_２－微球蛋白（β_２－ＭＧ）为肾损害指标，研究２０例行体外循环术患者术中肾功能改变及其与血浆血栓素Ａ_２－前列环素（ＴＸＡ_２／ＰＧＩ_２）失衡的关系。结果示：（１）血清α_１－ＭＧ及β_２－ＭＧ术中均升高；（２）尿α_１－ＭＧ及β_２－ＭＧ术中均升高，停机后１ｈ尿α_１－ＭＧ恢复至术前水平，尿β_２－ＭＧ术后６ｈ未恢复；（３）血浆肌酐、尿素氮均在正常范围；（４）相关分析表明停机时血清α_１－ＭＧ与术中ＴＸＡ_２／ＰＧＩ_２比值呈高度正相关（ｒ＝０．８３．Ｐ＜０．０１），血清β_２－ＭＧ与ＴＸＡ_２／ＰＧＩ_２呈高度正相关（ｒ＝０．７０，Ｐ＜０．０５）。作者认为：（１）体外循环中存在肾小球滤过率下降及肾小管损害；（２）体外循环中肾损害与术中ＴＸＡ_２－ＰＧＩ_２失衡有关。     

3—氨甲基吡啶树脂的合成及五种氨基吡啶树脂对金铂吸附性的比较

研究了反应物配料比３－ＡＭＰ／Ｃｌ（摩尔比）、反应温度与时间对大孔型３－氨甲基吡啶树脂（３—ＡＭＰＲ）性能的影响规律．在最佳合成工艺条件下制得３－ＡＭＰＲ的功能基含量为３．１６ｍｍｏｌ／ｇ树脂．３－ＡＭＰＲ对ＡｕＣｌ６（２－），ＰｔＣｌ６（２－），ＩｒＣｌ６（２－），ＰｄＣｌ４（２－），ＲｈＣｌ６（３－）的吸附容量分别为８００．８，３８７．８，３８６．３，１３３．０，１０５．５ｍｇ金属／ｇ树脂；配位比分别为１．２９，０．６３，０．６４，０．４０，０．３３。比较了３—ＡＭＰＲ、２－ＡＭＰＲ、４－氨基吡啶树脂（４－ＡＰＫ）、３—ＡＰＲ、２－ＡＰＲ五种树脂对ＡｕＣｌ４－、ＰｔＣｌ６（２－）的吸附性，其中３－ＡＭＰＲ为最佳。     

血β_2－微球蛋白在慢性肺心病缓解期判定肾功能减退的价值

对３０例慢性肺心病缓解期患者及５０例正常人采用ＲＩＡ法测定了血清的β_２－微球蛋白（β_２－ＭＧ），结果显示：慢性肺心病缓解期患者血清β_２－ＭＧ值为３．５±０．５８ｍｇ／Ｌ，较正常人血清β_２－ＭＧ值３．２４±０．４５ｍｇ／Ｌ为高（ｔ检验，Ｐ＜０．０１），肺心病缓解期患者中有１４例（Ａ组）血清β_２－ＭＧ值为４．２９±０．３８ｍｇ／Ｌ，超过正常上限，且血ＢＵＮ６．８ｍｍｏｌ／Ｌ，Ｃｒ１３２μｍｏｌ／Ｌ，Ｃｃｒ６４ｍｌ／ｍｉｎ；另１６例（Ｂ组）血清β_２－ＭＧ值（３．１２±０．３４ｍｇ／Ｌ）正常，血ＢＵＮ５．４ｍｍｏｌ／Ｌ，Ｃｒ１１４μｍｏｌ／Ｌ，Ｃｃｒ１０２ｍｌ／ｍｉｎ，两组β_２－ＭＧ及Ｃｃｒ比较有显著差异（ｔ检验，Ｐ＜０．０１）。提示血清β_２－ＭＧ测定在慢性肺心病缓解期患者中较ＢＵＮ、Ｃｒ能更早地发现肾功能减退。     

大黄素对大鼠腹腔巨噬细胞生物合成白三烯B4的影响

研究不同浓度大黄素对大鼠腹腔巨噬细胞（ＭΦ）生物合成白三烯Ｂ_４（ＬＴＢ_４）的影响。结果表明大黄素在５×１０￣（－７）～５×１０￣（－６）ｍｏｌ／Ｌ浓度范围内（ｎ＝４），可抑制大鼠腹腔ＭΦＬＴＢ_４的生物合成，量效关系良好（ｒ＝０．９５９１，ｎ＝４）；大黄素对大鼠腹腔ＭΦ生物合成ＬＴＢ_４的抑制率范围为２８．４±６．７％～８８．０±５．３％。大黄素５×１０￣（－６）ｍｏｌ／Ｌ，相当于氟灭酸１×１０￣（－４）ｍｏｌ／Ｌ抑制作用；ＬＴＢ_４的半数抑制率（ＩＣ_（５０））为１．２×１０￣（－６）ｍｏｌ／Ｌ。总之ＥＭＯ的抗炎机制与抑制ＭΦ生物合成ＬＴＢ_４有关。     

Lee氏法测米氏常数的实验观察

目的：介绍、说明和应用Ｌｅｅ氏法测米氏常数（Ｋｍ）。方法：用尿素酶与尿素反应１０秒钟，用二乙酰一肟终止反应，并测定和换算出反应体系底物浓度［Ｓｔ］与初始底物浓度［Ｓｏ］，代入Ｌｅｅ氏方程式。结果：尿素酶Ｋｍ为２．９×１０－３ｍｏｌ／Ｌ～３．１×１０－３ｍｏｌ／Ｌ，最大反应速度Ｖ为２．２×１０－４ｍｏｌ／Ｓ（原液）与１．２×１０－４ｍｏｌ／Ｓ（１／２稀释液）。结论：Ｌｅｅ氏法测Ｋｍ准确、简便，受底物消耗的影响小，反应进行了５０％时，相对百分误差还不到４％。     

丙烯氨氧化催化剂物化性能研究：Ⅱ.催化剂失活前后的结构表征

采用ＸＲＤ，ＩＲ，Ｍｏｂａｕｅｒ ＥＳＲ，ＸＰＳ，ＳＥＭ和孔结构分析等分析测试手段，对比研究了新鲜，失活和再生三种丙烯氨氧化催化剂的体相结构和表面性质。结果表明，新鲜催化剂中各元素以Ｆｅ２（ＭｏＯ４），α－ＣｏＭｏＯ４，ＮｉＭｏＯ４，γ－Ｂｉ２Ｏ３．ＭｏＯ３，α－Ｂｉ２Ｏ３．３ＭｏＯ３，η－ＭｏＯ３，α－Ｂｉ２Ｏ３和β－Ｂｉ２Ｏ３形式存在２；失活催化剂中，部分Ｆｅ２（ＭｏＯ４）３转变为α－Ｆｅ－Ｍ     

Mo—S—Ag修饰电极测定水果中抗坏血酸

目的用电化学方法测定样品中抗坏血酸含量。方法利用Ｍｏ－Ｓ－Ａｇ簇合物修饰电极对抗坏血酸的电催化作用，建立了一个测定抗坏血酸的新方法。结果在１．０×１０－２～２．０×１０－５ｍｏｌ／Ｌ的浓度范围内，抗坏血酸的氧化峰电流与其浓度呈线性关系，最低检测限为１．０×１０－５ｍｏｌ／Ｌ。结论用这种方法测定水果中的抗坏血酸，方法准确、快速、干扰小，结果满意。     

镁抗大鼠再灌注心律失常作用与心肌代谢的相互关系

根据３种不同Ｍｇ￣（２＋）浓度的灌流液将３６只大鼠随机均分为３组。采用Ｌａｎｇｅｎｄｏｒｆｆ装置灌注离体心脏模型，研究不同浓度Ｍｇ￣（２＋）灌流时，再灌注心律失常（ＲＡ）发生的情况，同时检测再灌注前、后冠脉流出液中环磷酸腺苷（ｃＡＭＰ）、血栓素Ｂ_２（ＴＸＢ_２）和６－酮－前列腺素Ｆ_（１α）（６－Ｋ－ＰＧＦ_（１α））浓度变化，并探讨其相互关系。结果显示，镁可有效地降低ＲＡ发生率，同时减少再灌注时ｃＡＭＰ、ＴＸＢ_２和６－Ｋ－ＰＧＦ_（１α）的合成及释放。当镁分别为０．４、１．２或４．８ｍｍｏｌ／Ｌ时，再灌注心室颤动分别为１００％、３３．４％和１６．７％（均为Ｐ＜０．０１）。而且再灌注后３种代谢产物增加百分率也显著下降，其中ｃＡＭＰ分别为１１８％、６７％和３２％（均为Ｐ＜０．０１）；ＴＸＢ_２为１６１％、１０６％（Ｐ＜０．０５）和２８％（Ｐ＜０．０１）；６－Ｋ－ＰＧＦ_（１α）为５７％、４４％（Ｐ＜０．０５）和１９％（Ｐ＜０．０１）。结果提示，镁可以显著降低再灌注心肌细胞合成及释放ｃＡＭＰ、ＴＸＡ_２和ＰＧＩ_２，因而降低ＲＡ发生率。     

Fe3O4氧化制备γ—Fe2O3磁粉过程动力学

通过对文题的研究，发现反应初期为动力学控制，对［Ｆｅ２＋］为三级反应，频率因子为３．８７×１０１２１ｍｉｎ－１，活化能为１０９．８ｋＪ／ｍｏ１；反应后期为传质控制，对［Ｆｅ２＋］为一级反应，频率因子为５．８７×１０６ｍｉｎ－１，活化能为３５．５ｋＪ／ｍｏｌ。氧分压对宏观反应速率影响不显著，在整个反应过程中反应速率对［Ｏ２］为０．２级反应。还得到了氧化过程的优化串级温度序列。     

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.