辅酶B12Costa型模型化合物的合成与表征

合成了以Ｎ，Ｎ一双（２，３－丁二酮－２－亚胺－３－肟）丙二胺为平面配体的烷基钴Ｓｃｈｉｆｆ碱－肟类辅酶Ｂ１２Ｃｏｓｔａ型模型化合物［Ｒ Ｃｏ（ＤＯ）（ＤＯＨ）ｐｎ·Ｈ２Ｏ］，其中，Ｒ＝ｎＣ３Ｈ７；ｎ－Ｃ４Ｈ７；ｉＧ４Ｈ９；ｎＣ５Ｈ１１；Ｃ－Ｃ６Ｈ１１；Ｃ６Ｈ５ＣＨ２，用紫外可见光谱、红外光谱、元素分析和ＨＮＭＲ进行了表征，讨论了不同Ｒ基加入对配合物的影响，为探讨辅酶Ｂ１２诱导的重排反应机理，提供了     

反义寡脱氧核苷酸对人肝癌裸鼠模型生长及转移的影响

目的 观察反义Ｈ－ｒａｓ寡脱氧核苷酸（ＯＤＮ）对高表达蛋白ｐ２１Ｈ- ｒａｓ的人肝癌高转移裸鼠模型ＬＣＩ－Ｄ２０细胞生长、凋亡及转移潜能的影响。方法原代培养ＬＣＩ－Ｄ２０细胞，经１０μｍｏｌ／Ｌ浓度反义ＯＤＮ处理后，以１．５×１０细胞数分别接种于１４只裸鼠皮下缝制皮囊内：６只接种反义Ｈ－ｒａｓＯＤＮ处理细胞，４只接种Ｈ－ｒａｓ非特异性反义ＯＤＮ处理细胞，余４只接种未作处理的对照细胞。结果反义Ｈ－ｒａｓ对ＬＣＩ－Ｄ２０细胞增殖具有显著抑制作用（ｔ＝３１．５２９，Ｐ＜０．０１），反义ＯＤＮ处理细胞，Ｓ期比率（３６．０±１．４）显著低于对照组（５８．５±０．９，ｔ＝１３．５１９，Ｐ＜０．０１），而Ｇ１／Ｇ０期比率（５６．７％±１．１％）高于对照组（３７．４±０．７，ｔ＝１４．８０２，Ｐ＜０．０１）；反义Ｈ－ｒａｓＯＤＮ处理细胞的凋亡发生率（３４．０％±４．５％）显著高于对照组（２．５％±１．２％，ｔ＝１３．４３４，Ｐ＜０．０１）；反义Ｈ－ｒａｓ处理对ＬＣＩ－Ｄ２０细胞在接种动物体内的生长具有显著延迟抑制作用（ｔ＝３．５０９，ｔ＝３．４５２，Ｐ＜０．０１）；接种动物的肺转移率，反义Ｈ－ｒａｓＯＤＮ处理组显著低于对照组。     

甲磺酰胺苯乙胺类化合物抗心律失常活性的定量构效关系研究(Ⅰ)

以ＰＯＬＹＧＥＮ软件中的ＣＨＡＲＭｍ程序和集团坐标轮换法，对合成的１２个甲磺酰胺苯乙胺类化合物的结构进行计算机分子模拟。根据所得化合物的能量最低构象，计算了其ＶＤＷ体积、偶极矩、总键能、总键角能、总非正则能以及氮原子电荷等值，并对这些化合物进行ＣＮＤＯ／２法量化计算，这些计算结果作为结构参数分别与１２个化合物抗心律失常活性进行相关分析，以逐步回归法建立了两个相关性较好的方程：ｌｇｌ／ＭＥＣ＝６．９９９１－０．３８４２Ｘ２＋３．６７９６Ｘ５［ｎ＝１２，ｒ＝０．８５５９７５，ｓ＝０．１８９６７２，Ｆ＝１２．３３４６４＞Ｆ１－０．０５（３，９）＝３．８６］；ｌｇｌ／ＭＥＣ＝１４．７０３８－２１３．２６９２Ｘ４－１０．４８２９Ｘ５［ｎ＝１２，ｒ＝０．９３１９１９，ｓ＝０．１３３０４７，Ｆ＝２９．７１３５４＞Ｆ１－０．０１（３，９）＝６．９９］。结果提示，这类化合物的抗心律失常活性与分子中的原子轨道杂化程度和氮原子对分子ＨＯＭＯ和ＬＵ－ＭＯ的贡献有关，可以看出，氮上的取代不同会引起抗心律失常活性的不同     

卵巢恶性肿瘤患者T细胞亚群及其与IL—2,sIL—2R的相关性研究

为探讨卵巢恶性肿瘤（ＭＯＴ）与细胞免疫的关系，对４０例ＭＯＴ患者和３０例正常对照（ＮＣ）妇女的Ｔ淋巴细胞亚群和白细胞介素－２（ＩＬ－２）、可溶性白细胞介素－２受体进行了同步检测及相关性研究。结果：ＭＯＴ组ＩＬ－０２、ＣＤ３、ＣＤ４、ＣＤ４／ＣＤ８均低于ＮＣ组，ｓＩＬ－２Ｒ、ＣＤ６均高于ＮＣ组，其中ＣＤ３、ＣＤ４、ＣＤ４／ＣＦ８与ＩＬ－２呈正相关，与ｓＩＬ－２Ｒ呈负相关。提示本病患者Ｔ淋巴细胞免疫功     

药物气相色谱分析衍生化方法推荐专家系统的设计与实现

介绍了药物气相色谱分析衍生化方法推荐专家系统。该系统可对分子量小于５００,且分子中含有－ＣＯＯＨ、－ＣＯＯ－、－ＯＨ、－Ｏ＾－、－ＮＨ２（包括Ｒ－２、＝ＣＯＮＨ２、－ＳＯ２ＮＨ２）、ＮＨ（包括Ｒ１ＮＨＲ２、－ＣＯＮＨＲ、－ＣＯＮＨＳＯ２－、－ＳＯ２ＮＨＲ、Ｒ１ＮＨＣＯＮＨＲ２）、Ｒ４Ｎ（＋＋、Ｃ＝、＝ＣＨＯ、－ＳＨ、＝ＳＯ３Ｈ、－ＳＯ３＾－等 有团的药物实现衍生化方法推荐,并能自动调用柱系统推荐子     

1,4,7,10,13,16-六氮杂环十八烷及其 Pd~(2 )Cr~(3 )配位化合物的IR、UV和NMR光谱学研究

作者对１，４，７，１０，１３，１６－六氮杂环十八烷（［１８］ａｎｅＮ６）及其Ｐｄ２＋、Ｃｒ３＋ 配位化合物［Ｐｄ２（［１８］ａｎｅＮ６）Ｂｒ２］Ｂｒ２· ４Ｈ２Ｏ、［Ｃｒ（［１８］ａｎｅＮ６）］Ｂｒ３进行了红外、紫外 和核磁共振光谱学研究。红外图谱中与Ｐｄ２＋、Ｃｒ３＋配位化合物Ｐｄ－Ｎ、Ｃｒ－Ｎ配位键伸 缩振动相对应的谱峰位置分别为 ５０２ ｃｍ－１和 ４９２ｃｍ－１。认为 Ｐｄ２＋配位化合物水溶液 在 ３５４ ｎｍ（ε＝１４１４）处和Ｃｒ３＋配位化合物水溶液在 ４６７． ２ ｎｍ（ε＝２２０）、３６６． ２ｎｍ（ε ＝８０）处的紫外吸收为中心离子Ｐｄ２＋、Ｃｒ３＋的电子ｄ轨道ｄ－ｄ能级跃迁所致。     

1,4—双（氯甲基）—2—甲氧基—5—壬氧基苯的均聚和共聚研究

以１，４－双（氯甲基）－２，５一二甲基苯（ＢＣＭＤＭＢ）和１，４－双氯甲基－２－甲氧基－５－壬氧基苯（ＢＣＭＭＯＮＯＢ）为单体，采用脱氯化氢法，合成了聚（２，５－二甲基）对亚苯基亚乙烯（ＰＤＭＰＶ）和聚（２－甲氧基－５－壬氧基）对亚苯基亚乙烯（ＰＭＯＮＯＰＶ）；并对ＢＣＭＤＭＢ和ＢＣＭＭＯＮＯＢ的共聚进行了研究。结果表明，适宜的反应条件为：碱与单体的摩尔比为２０∶１，在室温下聚合时间为３０ｈ，碱的ｐＨ＝１４时产率最高。用ＩＲ、１Ｈ－ＮＭＲ、ＵＶ—Ｖｉｓ对聚合物进行了表征。     

HPLC法测定痛经片中阿魏酸的含量

采用高效液相色谱法，ＯＤＳ柱，以乙腈－０．０５ ８ ｍｏｌ／Ｌ ＫＨ２ＰＯ４溶液（用磷酸调ｐＨ＝２．５）（１：４）为流动相，测定痛经片中阿魏酸的含量。其方法回收率为９３．３％，ＲＳＤ为０．９％。     

天津市男性糖尿病危险因素的流行病学研究

对１９９１年天津市糖尿病流行病学调查筛选出的５７例男性非胰岛素依赖型糖尿病（ＮＩＤＤＭ）病例进行了１：１配对病例对照研究。经条件Ｌｏｇｉｓｔｉｃ回归模型分析发现ＮＩＤＤＭ的危险因素是：经济收入高（ＯＲ＝３．０９，９５％ＣＩ＝１．２８～７．４７），既往相关病史（ＯＲ＝７．６５，９５％ＣＩ＝２．３０～２５．４５），糖尿病家族史（ＯＲ＝１３．６６，９５％ＣＩ＝１．８４～１０１．６２），嗜甜食（ＯＲ＝２．３０，９５％ＣＩ＝１．４０～３．８０），肥胖（ＯＲ＝６．８５，９５％ＣＩ＝２．１１～２２．１９）。同时还发现，体育活动（ＯＲ＝０．３８，Ｘ￣２＝９．５５，Ｐ＜０．０１）和蔬菜是其保护性因素。     

含氧和氮的四氯化钛络合物催化双环戊二烯开环移位聚合反应的研究

报道了ＴｉＣｌ４·２［Ｃ６Ｈ８Ｏ］（１）;ＴｉＣｌ４·２［Ｃ８Ｈ１１Ｎ］（２）;ＴｉＣｌ４·２［Ｏ（ＣＨ２）４ＣＨ２］（３）;ＴｉＣｌ４·２［Ｃ６Ｈ７Ｎ］（４）;ＴｉＣｌ４·２［Ｃ５Ｈ５Ｎ］（５）;ＴｉＣｌ４·２［Ｃ４Ｈ８Ｏ２］（６）催化双环戊二烯开环移位聚合反应并对６个影响因素进行了讨论,由此得到了优化的反应条件。     

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.