溶栓药APSAC的制备和鉴定

重组链激酶（ｒ－ＳＫ）由工程菌提取液经ＳｅｐｈａｃｒｙｌＳ－２００柱纯化，比活性达１０５ＩＵ／ｍｇ，十二烷基硫酸钠－聚丙烯酰胺凝胶电泳（ＳＤＳ－ＰＡＧＥ）显示分子量为７８．０２４７×１０－２４ｋｇ的一条带。人新鲜血浆经Ｌｙｓｉｎｅ－Ｓｅｐｈａｒｏｓｅ４Ｂ亲和层析，ＳｅｐｈａｄｅｘＧ－２５凝胶过滤制备纤溶酶原（ｐｌｇ），比活性达２３．７ＩＵ／ｍｇ，活性回收率为１３．６％，ＳＤＳ－ＰＡＧＥ显示分子量为１４７．７４８９×１０－２４ｋｇ的一条带。对－茴香酸－对－脒基ｒ－ＳＫ和ｐｌｇ的混合物经苯酯盐酸盐（ＡＰＡＮ）修饰后制备茴香酰纤溶酶原链激酶激活剂复合物（ＡＰＳＡＣ），产物经Ｌ－ｌｙｓｉｎｅＳｅｐｈａｒｏｓｅ４Ｂ亲和层析，ＳＤＳ－ＰＡＧＥ显示分子量为７８．０２４７×１０－２４ｋｇ和１４７．７４８９×１０－２４ｋｇ两条带，其拟一级水解速率常数为１．２６×１０－４ｓｅｃ－１。体外溶栓实验证明其有溶栓活性。     

兔动脉粥样硬化进程中红细胞Na~+-K~+-ATPase和全血粘弹性参数的变化及其可能的预示作用

目的：了解血脂、Ｎａ＋－Ｋ＋－ＡＴＰａｓｅ及全血粘弹性参数（弹性模量及动粘度）在兔动脉粥样硬化进程中的预示作用。方法：健康家兔８０只随机分为实验组（ＡＧ）６０只及对照组（ＣＧ）２０只，各组又分为４个亚组，即ＡＧ１～ＡＧ４和ＣＧ１～ＣＧ４，ＡＧ给予胆固醇粉１ｇｄ－１只－１，在喂养的第２、４、８和１２周分别观察ＡＧ１～ＣＧ１、ＡＧ２～ＣＧ２、ＡＧ３～ＣＧ３、ＡＧ４～ＣＧ４主动脉粥样硬化（ＡＳ）病变和上述指标的变化。结果：在兔ＡＳ阶段性进程中，血脂（Ｔｃｈ、ＴＧ）在ＡＳ早期明显增高，其后有所降低；红细胞膜Ｎａ＋－Ｋ＋－ＡＴＰａｓｅ活性自ＡＳ早期起进行性降低，且在ＡＳ早、晚期与Ｔｃｈ有密切负相关关系（ｒ＝－０．６７、－０．５１，Ｐ＜０．０１、０．０５）；全血粘弹性参数中，在早期仅当角频率（ω）为０．１９０Ｈｚ时弹性模量呈单一性升高，而中、晚期弹性模量及动粘度普遍升高，二者之间有正相关关系（ｒ＝０．５１～０．８５，Ｐ＜０．０５～０．００１）。结论：上述指标在ＡＳ进程中有一定的阶段性预示作用。     

一氧化氮及一氧化碳对碱性成纤维细胞生长因子促血管平滑肌细胞增殖作用的影响

目的：研究一氧化氮（ＮＯ） 及一氧化碳（ＣＯ） 对碱性成纤维细胞生长因子（ｂａｓｉｃ ｆｉｂｒｏｂｌａｓｔ ｇｒｏｗｔｈ ｆａｃｔｏｒ,ｂＦＧＦ） 促平滑肌细胞（ｖａｓｃｕｌａｒｓｍｏｏｔｈ ｍｕｓｃｌｅ ｃｅｌｌｓ, ＶＳＭＣ）增殖作用的影响及其机制。方法：以３ＨＴｄＲ参入法测定平滑肌细胞增殖程度,放射活性法测定ＶＳＭＣ内蛋白磷酸化程度、蛋白激酶Ｃ（ｐｒｏｔｅｉｎ ｋｉｎａｓｅ Ｃ,ＰＫＣ） 及丝裂素活化蛋白激酶（ｍｉｔｏｇｅｎａｃｔｉｖａｔｅｄ ｐｒｏｔｅｉｎ ｋｉｎａｓｅ, ＭＡＰＫ）活性。结果：孵育２４ ｈ 后,ｂＦＧＦ刺激的ＶＳＭＣ增殖较对照组增加１．１ 倍（Ｐ＜ ０．０１）,细胞内蛋白磷酸化程度增加３８．２％ （Ｐ＜ ０．０１）,ＰＫＣ 及ＭＡＰＫ 活性分别增加１．５ 和２ ．５倍（ Ｐ＜ ０．０１）;ＣＯ 前体ｈｅｍｅＬｌｙｓｉｎａｔｅ（ＨＬＬｙｓ） 及ＮＯ 前体ＬＡｒｇｉｎｉｎｅ（ ＬＡｒｇ） 对静止期ＶＳＭＣ 生长无显著影响,亦未引起细胞内蛋白磷酸化、ＰＫＣ及ＭＡＰＫ 活性发生显著改变;５、１０ 、２０ μｍｏｌ·Ｌ－１ ＨＬＬｙｓ 使ｂＦＧＦ刺激的ＶＳＭＣ增殖分别减少４３．４ ％ 、４６．６％ 和４７ ．６％     

一氧化氮在肝硬化腹水大鼠钠潴留中的作用研究

为探讨血管活性物质一氧化氮（ＮＯ）在肝硬化钠潴留中的作用,采用放射性免疫法一胆管结扎（ＢＤＬ）诱导的胆汁性肝硬化腹水组（ＣＩＲ）和肝硬化腹水给药组（ＣＩＲ－ＮＡＭＥ）及假手术组（ＳＯ）大鼠血浆和肾组织匀浆中ＮＯ依赖性ｃＧＭＰ含量,用电极法测定上述三组大鼠２４ｈ尿钠排泄量。结果显示：肝硬化腹水大鼠血浆和肾组织匀浆中ｃＧＭＰ水平显著高于假手术组,２４ｈ尿钠排泄量则显著低于假手术组。而持续给予小剂量〔（     

17-β雌二醇对原代人脐静脉内皮细胞一氧化氮合酶基因表达的影响

目的：阐明雌二醇对内皮细胞一氧化氮（ＮＯ）生成及一氧化氮合酶（ｃＮＯＳ）基因表达的影响。方法：观察雌二醇作用于原代人脐静脉内皮细胞（ＨＵＶＥＣ）一定时间（１～２４ｈ）后的ＮＯ产量，采用Ｇｒｅｉｓ反应测定代谢产物ＮＯ－２的量及Ｎｏｒｔｈｅｒｎ杂交技术分析雌二醇作用于ＨＵＶＥＣ１８ｈｃＮＯＳｍＲＮＡ的表达。结果：１００、３０、１０及１ｎｍｏｌ·Ｌ－１的雌二醇作用下，ＨＵＶＥＣ分别于１、４、１２及１８ｈ起，ＮＯ－２产量有明显增高。０．１ｎｍｏｌ·Ｌ－１雌二醇作用２４ｈ内，ＮＯ－２产量与对照组比较差异无统计学意义。Ｎｏｒｔｈｅｒｎ杂交结果表明：１～１００ｎｍｏｌ·Ｌ－１雌二醇可明显促进ｃＮＯＳｍＲＮＡ的表达；而０．１ｎｍｏｌ·Ｌ－１雌二醇无此效应。结论：雌二醇可促进ＨＵＶＥＣＮＯ的生成及ｃＮＯＳ基因的表达，可能为雌激素保护作用的重要机制，雌二醇作用的阈浓度可能在０．１～１ｎｍｏｌ·Ｌ－１之间     

Tc-99m标记抗AFP抗体在人肝癌裸鼠模型中的定位显像研究

目的：揭示锝（Ｔｃ）－９９ｍ标记的单克隆抗体在肿瘤定位中的作用。方法：通过ＳＭＭＣ－７７２１－ＣＳ细胞株诱导原发性肝癌实体瘤裸鼠模型，将Ｔｃ－９９ｍ标记抗ＡＦＰ单克隆抗体（ＡｎｔｉＡＦＰ－ＭｃＡｂ）和正常鼠免疫球蛋白（ＮＭＩｇＧ）通过尾静脉注射荷瘤裸鼠，分别在１５ｍｉｎ、１２ｈ、２４ｈ作单光子发射计算机断层显像（ＳＰＥＣＴ）。结果：在注射标记抗体２４ｈ能得到清晰的肿瘤显像，对照组无肿瘤显像，其中靶与非靶放射性比率（Ｔ／ＮＴ）与对照组比较，ｔ＝３．１０４，Ｐ＜０．０５，有显著差异；肿瘤定位指数（ＬＩ－组织与血液放射性比率）单抗组为２．６８±０．０５，对照组为１．２３±０．０１，肿瘤组织摄取率为２８．６８％±４．００％。结论：Ｔｃ－９９ｍ标记抗ＡＦＰ抗体具有良好的定位效果     

Χ－硒化卡拉胶与亚硒酸钠在兔的吸收与分布比较

给兔灌胃（ｉｇ）ｋａｐｐａ－硒化卡拉胶（　－ＳｅＣ）３８ｍｇ·ｋｇ~－１和亚硒酸钠１ｍｇ·ｋｇ~－１（均相当于Ｓｅ０．４５ｍｇ·ｋｇ~－１），结果显示　－ＳｅＣ组血Ｓｅ水平的ＡＵＣ＿０－７２ｈ为１２．８９±３．１３ｍｇ·Ｌ~－１·ｈ，显著高于亚硒酸钠组的８．６６±１．２０ｍｇ·Ｌ~－０１（Ｐ＜０．０５）；　－ＳｅＣ和亚硒酸钠组的Ｃｍａｘ分别为０．５５６±０．０８６ｍｇ·Ｌ~－１和０．４９３±０．０９１Ｓｅｍｇ·Ｌ~－１（Ｐ＞０．０５），Ｔｍａｘ分别为４．６５±１．１２ｈ和３．４７±１．０７ｈ（Ｐ＞０．０５）．ｉｇ后２４及７２ｈ，心、肝、肾、肺及软骨中的Ｓｅ含量，　－ＳｅＣ组显著高于亚硒酸钠组（Ｐ＜０．０５或０．０１）。     

基因工程人生长激素的纯化及鉴定

将在中国仓鼠卵巢细胞（ＣＨＯ）中基因克隆表达的人生长激素（ｈＧＨ）培养物经Ｏｃｔｙｌ－ＳｅｐｈａｒｏｓｅＣＬ－４Ｂ疏水层析，ＳｅｐｈａｄｅｘＧ－１００凝胶过滤层析，ＤＥＡＥ－ＣｅｌｌｕｌｏｓｅＤＥ５２离子交换层析，得到了较纯的ｈＧＨ。通过ＳＤＳ－聚丙烯酰胺凝胶电泳（ＳＤＳ－ＰＡＧＥ），Ｎ－末端氨基酸分析及放免分析，证明基因工程ｈＧＨ与天然ｈＧＨ性质相符。     

亮氨酸脑啡肽对缺氧时肺动脉平滑平细胞增殖的影响

目的：研究缺氧对肺动脉平滑肌细胞（ＰＡＳＭＣ）增殖、ＤＮＡ合成和细胞周期的作用,并观察亮氨酸脑啡肽（Ｌ－Ｅｎｋ）和阿片受体阻断剂纳洛酮（Ｎａｌ）的影响．方法：离体培养兔ＰＡＳＭＣ,采用四唑盐比色试验（ＭＴＴ）,３Ｈ－ＴｄＲ参入技术和流式细胞仪分析细胞周期等方法,观察ＰＡＳＭＣ增殖、ＤＮＡ合成和细胞周期的变化．结果：ＰＡＳＭＣ缺氧培养１２ｈ,２４ｈ后,ＭＴＴ的Ａ值和３Ｈ－ＴｄＲ参入量分别为（１７９±１９．１）％,（１８５±２０．３）％和（１５８±１３．６）％,（１６７±１７．４）％,比常氧对照组（１００％）显著增加（Ｐ＜０．０１）．缺氧培养２４ｈ后,在Ｇ２,Ｍ期的细胞比例显著升高,Ｇ０,Ｇ１期的细胞比例显著减少（Ｐ＜０．０１）．Ｌ－Ｅｎｋ（１×１０－４ｍｏｌ／Ｌ）可明显抑制缺氧促进ＰＡＳＭＣ增殖和ＤＮＡ合成的作用（Ｐ＜０．０１）,该抑制作用可被Ｎａｌ阻断．结论：Ｌ－Ｅｎｋ可抑制缺氧时ＰＡＳＭＣ的增殖和ＤＮＡ的合成作用,该抑制效应是通过阿片受体介导的．     

非胰岛素依赖型糖尿病患者红细胞膜ATPase活性改变及其影响因素

目的探讨非胰岛素依赖型糖尿病（ＮＩＤＤＭ）患者红细胞膜Ｎａ＋－Ｋ＋－ＡＴＰａｓｅ及Ｃａ２＋－ＡＴ－Ｐａｓｅ活性改变的影响因素。方法测定７７例ＮＩＤＤＭ患者和５０例正常人血糖、总胆固醇（ＴＣ）、甘油三酯（ＴＧ）、高密度脂蛋白胆固醇（ＨＤＬＣ）、脂质过氧化物（ＬＰＯ）、谷胱甘肽（ＧＳＨ）、糖化血红蛋白（ＨｂＡｌｃ）、超氧化物歧化酶（ＳＯＤ）、谷胱甘肽过氧化物酶（ＧＳＨＰＸ）、红细胞膜Ｎａ＋－Ｋ＋－ＡＴ－Ｐａｓｅ和Ｃａ２＋－ＡＴＰａｓｅ活性。ｔ检验、直线相关分析和多元逐步回归分析。结果ＮＩＤＤＭ组血糖、ＨｂＡｌｃ、ＴＣ、ＴＧ、ＴＣ／ＨＤＬＣ、ＬＰＯ显著高于对照组（Ｐ＜０．０１），ＨＤＬＣ、ＧＳＨ、ＳＯＤ、ＧＳＨＰＸ、红细胞膜Ｎａ＋－Ｋ＋－ＡＴＰａｓｅ和Ｃａ２＋－ＡＴＰａｓｅ活性低于对照组（除ＧＳＨ的Ｐ＜０．０５外，其他Ｐ＜０．０１）；不同ＨｂＡｌｃ、ＴＣ／ＨＤＬＣ、ＧＳＨ、ＬＰＯ、ＴＣ组的红细胞膜Ｎａ＋－Ｋ＋－ＡＴＰａｓｅ活性有显著性差别。红细胞膜Ｎａ＋－Ｋ＋－ＡＴＰａｓｅ活性＝１２．８０＋０．２７（ＧＳＨ）－０．１２（ＬＰＯ）－０．０９（ＴＣ／ＨＤＬＣ），红细胞胞膜Ｃａ２＋－ＡＴＰａｓｅ活性＝１０８．２０＋１．     

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.     

Development on Adjustable Calibration Marker for Shock Wave Focus

Shock wave lithotripsy （SWL） is a treatment of choice for upper urinary stones. However, this procedure is inappropriate for obese patients because the focus is often unable to reach the target owing to the limited focal distance in shock wave source. Although treating such patients in a blast path may increase the application length of shock wave source, it＇s difficult to find this path on the lithotripter monitor. For this reason, we invented an adjustable calibration marker in order to set an effective focus in the shock wave hath.     

Study on the TCM Pathogenesis of Angiopathic Complications of Type II Diabetes

Excess production of reactive oxygen species(ROS)of mitochondrion mediated by hyperglycemia is the common pathogenesis of angiopathic complications of diabetes.TCM holds that the damp from the dysfunction of spleen.kidney and liver is the causative factor of complications of diabetes.This is similar to the mechanism of Ros resulting in angiopathic complications of diabetes.When the angiopathic complications of type II diabetes mellitus(T2DM)are difierentiated as caused by turbid damp in TCM can be explained as ROS.Since the obstruction of pathogenic damp in channels and collaterals is said to be the main pathogenesis,the treating principle should be dissolving the damp to remove the obstruction.     

Leptin, Ghrelin and TNF-α before and after Hypo-caloric Traditional Chinese Diet and Auricular Acupuncture

INTRODUCTION Obesity is a complex emergent problem, which can be possibly solved not only by the diet but also by the life style and promotion of a constant physical exercise. 1, 2 No doubt careful attentions must be given to the nutritional condition of obese people, the dietary habits, the somatic build (i.e. distribution of fat mass) and the organic functions linked to formation of the fat mass. All the parameters should be constantly monitored before, during and after a diet treatment. 3, 4, 5     

Relationship between Dysglycemia and Carotid Atherosclerosis in Tibetan Population

People with dysglycemia are at high risk for atherosclerotic diseases. This study aims at investigating the atherosclerotic vascular damage in dysglycemia and its metabolic origin in Tibetan population.     

APPLICATION OF LORNOXICAM TO PATIENT-CONTROLLED ANALGESIA IN PATIENTS UNDERGOING ABDOMINAL SURGERIES

FOR anesthesiologis s ,treatingpostoperativepainhas alwaysbeen a problem.Althoughopioidshave been provedtobe effective,theirsideeffectscouldnotbeignored.With thedevelopmentofscienceand pharmacology,many drugs with aspectsof satisfactoryanalgesicefficacyand couldbe welltoleratedby patientshave been developed.And lornoxicamisone of them, which isa non-steroidalanti-inflammatorydrug (NSAID ), with analgesic, anti-infl-ammatory,andantipyreticproperties.Itseliminationhalf-time(3 to 5 hours) isle…     

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.     

CLINICAL SIGNIFICANCE OF SERUM CYTOKINES IL-1β,sIL-2R,IL-6,TNF-α,AND IFN-v IN ACUTE CORONARY SYNDROME

Objectives To explore serum cytokines levels (including IL-1 β, sIL-2R, IL-6, TNF-α, and IFN-v) and their significance in patients with acute coronary syndrome (ACS) and the subsequent follow-ups, with attempt to estimate the role of various serum inflammatory markers in the diagnosis and assessment of ACS.Methods The study population include 40 patients with acute myocardial infarction (AMI), 40 patients with unstable angina pectoris (UAP), and 40 controls. Among the 80 patients, 60 patients attended a follow up 4 months later. Serum inflammatory markers including IL-1 β, sIL-2R, IL-6, TNF-α, and IFN-v were measured by enzyme linked immunosorbent assay.Results Serum IL- 1 β, sIL-2R, IL-6, TNF-α were significantly higher in AMI group or UAP group compared to the control group and became significantly lower 4 months later in the follow-up patients. Serum levels of IFN-v shows no significant difference between AMI group or UAP group and controls, also showing no significant change when measured in follow up patients. There was no correlation between serum creatine kinase-MB isoenzyme levels and serum inflammatory markers either in UAP or AMI group. Furthermore, when divided into two subgroups using Wagner's QRS scoring system in the AMI group, there is no difference of each serum inflammatory marker between ≤ 6 scores group and ＞ 6 scores group.Conclusion Serum levels of certain inflammatory markers may have some diagnostic value for ACS, and can be a useful marker reflecting disease stability.