重组人血管抑素的纯化和生物活性鉴定

目的：纯化大肠杆菌表达的重组人血管抑素（ｒｈＡＧＮ）并鉴定其抗血管生成生物活性。方法：通过超声破碎、包涵体洗涤、Ｓｅｐｈａｄｅｘ Ｇ－１００ 凝胶过滤层析等步骤初步纯化ｒｈＡＧＮ,Ｌｏｗｒｙ法测定蛋白浓度,ＳＤＳ－ＰＡＧＥ分析观察其纯度;应用 ＭＴＴ法观察在终浓度为 ０．１～３．０ ｍｇ／Ｌ范围内 ｒｈＡＧＮ对 １０ μｇ／Ｌ ＥＧＦ刺激的人真皮微血管内皮细胞系ＨＤＭＥＣ的增殖抑制活性;以ＰＢＳ为对照（ｎ＝５）,应用原位鸡胚绒毛尿囊膜（ＣＡＭ）技术观察１００ μｇ／只（ｎ＝５）和２００ μｇ／只（ｎ＝５）ｒｈＡＧＮ作用７２ ｈ对３０ｎｇ ｂＦＧＦ 诱导的鸡胚ＣＡＭ毛细血管生成的抑制作用。结果：①ｒｈＡＧＮ电泳纯度达到 ９６％,总回收率为 ６１．７％;②ｒｈＡＧＮ对 ＨＤＭＥＣ细胞增殖的最大抑制剂量约为 ２．０ ｍｇ／Ｌ,抑制率约９２．３％．半数最大抑制剂量在１．０ ｍｇ／Ｌ附近;③１００ μｇ／只和２００ μｇ／只ｒｈＡＧＮ组鸡胚ＣＡＭ 载样滤纸片下毛细血管数目分别为７９±２３条和３７±１１条,两组间比较差异显著（Ｐ＜０．０５）;与对照组（１４５±３６条）相比,均有显著性差异（Ｐ＜０．０１）。结论：ｒｈＡＧＮ达到了较高的电泳纯度,     

高血压病患者胰岛素抵抗与血浆纤溶酶原激活物抑制物-1的关系

目的：研究高血压病（ｅｓｅｎｔｉａｌｈｙｐｅｒｔｅｎｓｉｏｎ,ＥＨ）病人胰岛素抵抗（ｉｎｓｕｌｉｎｒｅｓｉｓｔａｎｃｅ,ＩＳＲ）与纤溶酶原激活物抑制物１（ＰＡＩ１）的关系。方法：ＥＨ病人５９例,正常对照４６例。测定血浆ＰＡＩ１、ｔＰＡ（组织型纤溶酶原激活物）、空腹血糖（ＧＬＵ）、胰岛素（ＩＮＳ）、低密度脂蛋白胆固醇（ＬＤＬＣ）、高密度脂蛋白胆固醇（ＨＤＬＣ）、甘油三酯（ＴＧ）、胰岛素敏感指数（ＩＳＩ）、血尿酸（ＵＡ）、体重指数（ＢＭＩ）、腹围／臀围比（ＷＨＲ）等指标。结果：ＥＨ病人ＩＳＩ（用空腹血糖与胰岛素乘积的倒数表示）较正常对照组下降（－５．４±０．５ｖｓ－３９±０．８,Ｐ＜０．０１）。血浆ＰＡＩ１较对照组升高［（２９±８）ｍｇ·Ｌ－１ｖｓ（２４±５）ｍｇ·Ｌ－１,Ｐ＜０．０１］。在高血压组中单相关分析表明ＰＡＩ１与ＷＨＲ（ｒ＝０．３６９,Ｐ＜０．０１）、ＧＬＵ（ｒ＝０．５６３,Ｐ＜０．００１）正相关,与ＩＳＩ（ｒ＝－０．３０１,Ｐ＜０．０５）,ＨＤＬＣ（ｒ＝－０．４１７,Ｐ＜０．０１）、ｔＰＡ（ｒ＝－０．４９９,Ｐ＜０．００１）负相关。以ＢＭＩ、ＷＨＲ、ＩＳＩ、ＨＤＬＣ、ＬＤＬ     

延髓腹面降压区与肾血管阻抗的关系（Ⅰ）

实验用３００～３５０ｇ雄性Ｗｉｓｔａｒ大鼠，氨基甲酸乙酯腹腔麻醉。电刺激（０．２ｍｓ４０μＡ１００Ｈｚ８ｓ）并经兴奋性氨基酸Ｌ－谷氨酸（Ｌ－Ｇｌｕ）检测性验证，提示大鼠延髓尾端Ⅻ对脑神经丛第三支根部１ｍｍ×１ｍｍ区域为降压区（ｄｅｐｒｅｓｓｏｒａｒｅａｉｎｖｅｎｔｒａｌｓｕｒｆａｃｅｏｆｍｅｄｕｌｌａｏｂｌｏｎｇａｔａ，ＶＳＭｄ）。电刺激该区可见平均动脉血压（ＭＡＰ）以１６．９９的斜率下降，最大百分数为２６．８２±８．９３（Ｐ＜０．０１　。ｎ＝１０）．其下降率与刺激时间呈对数式关系。Ｌ－Ｇｌｕ微量注射后。在降压的同时心率（ＨＲ）减慢，分别为２．６７±０．４７ｋＰａ（Ｐ＜０．０１）和３０．３３±４．２３ｍｉｎ￣（－１）（Ｐ＜０．００１，ｎ＝６）。切断双侧迷走神经后降压和减心率反应减弱，分别为１．４６±０．４５ｋＰａ和５．６±４．８ｍｉｎ￣（－１）（Ｐ＜０．０１；ｎ＝５）；双侧损毁肾交感神经，基础ＭＡＰ下降，同时降压反应被削弱，为１．８１±０．４９ｋＰａ（Ｐ＜０．０１）但对减心率反应无影响（Ｐ＞０．０５，ｎ＝５）。     

糖尿病患者血清层粘连蛋白水平及其影响因素的探讨

目的：为探讨血清层粘连蛋白（Ｌａｍｉｎｉｎ,ＬＮ）与糖尿病微血管病变的关系,研究糖尿病患者血清ＬＮ的影响因素。方法：用放免法测定７６例２型糖尿病患者和３８例正常对照者的血清ＬＮ浓度。结果：糖尿病患者血清ＬＮ显著高于正常对照（分别为１６８．７６±２７．８４ｎｇ／ｍｌ和１４９．０９±２８．８４ｎｇ／ｍｌ,Ｐ＜０．０１有微血管病变患者显著高于无微血管病变患者（分别为 １７４．９７±２７．１４ｎｇ／ｍｌ和１５８．１２±２６．１２ｎｇ／ｍｌ　Ｐ＜０．０２）,糖尿病视网膜病变（ＤＲ,ｎ＝４１,１７５．６２±２６．５６ｎｇ／ｍｌ）和糖尿病肾病（ＤＮ, ｎ＝２８, １７９．５９±２９．６６ｎｇ／ｍｌ）患者血清 ＬＮ分别显著高于无 ＤＲ（ｎ＝３５,１６０．７１±２７．１２ｎｇ／ｍｌ）和无ＤＮ（ｎ＝４８,１６０．５３±２４．１１ｎｇ／ｍｌ）的患者（Ｐ＜０．０５,Ｐ＜０．０１）。同时伴有ＤＲ和ＤＮ患者血清ＬＮ高于单有ＤＲ或单有ＤＮ患者。多元逐步回归分析提示糖尿病患者血清ＬＮ浓度增高的程度与其糖尿病病程长短关系密切。糖尿病患者血清ＬＮ与血清ＩＶ型胶原、血清结合珠蛋白水平呈正相关（Ｒ＝０ ５３,Ｐ＜０．００１和Ｒ＝０．４０,Ｐ＜０．０１）     

LDL和HDL对体外培养的人肾小球系膜细胞生长的影响

我们利用体外培养的人肾小球系膜细胞（ＧＭＣ），观察了低密度脂蛋白（ＬＤＬ）和高密度脂蛋白（ＨＤＬ）对其增殖的影响。我们发现，经ＬＤＬ刺激４８ｈ，在浓度为５０～２００ｍｇ／Ｌ范围内，ＬＤＬ能促进系膜细胞增殖，且在１００ｍｇ／Ｌ时促进作用达高峰，ＭＴＴ掺入后细胞的Ａ值为０．２０８±０．０１９，较阴性对照（含５％脱脂小牛血清）０．０８５±０．０２４明显升高（ｔ＝８．０９２，Ｐ＜０．００１）。延长刺激时间至１０６ｈ，则高峰为２００ｍｇ／Ｌ，３Ｈ－ＴｄＲ掺入后的ｍｉｎ－１数为３０１０±３２４．５６，是阴性对照（１４３２．３４±５７０）的２倍多（ｔ＝４．２４１，Ｐ＜０．０１）。但当ＬＤＬ浓度＞２００ｍｇ／Ｌ时，细胞增殖水平均有所下降，甚至显示出轻度抑制作用。用２０％脱脂血清取代全脂血清，细胞增殖明显降低，Ａ值由０．４２２±０．０９降至０．１０２±０．０４２（ｔ＝７．８６，Ｐ＜０．００１）；在脱脂血清中重新加入２０ｍｇ／Ｌ和１００ｍｇ／Ｌ的ＬＤＬ，Ａ值上升为０．３３５±０．０５７和０．６４±０．０９８，分别为脱脂血清的３．２８和６．２７倍（ｔ值分别为８．０３和１１．９７，均Ｐ＜０．００１）。而不同浓度的ＨＤＬ对细胞显示有     

系统性红斑狼疮患者外周血单核细胞分泌IL-12的水平及其临床意义

目的检测系统性红斑狼疮（ＳＬＥ）患者外周血单核细胞（ＰＢＭＣ）分泌ＩＬ－１２的水平,探讨其与ＳＬＥ活动性的关系。 方法　体外培养ＰＢＭＣ,予脂多糖（ＬＰＳ）刺激后用夹心ＥＬＩＳＡ法检测其上清中的ＩＬ－１２水平,用系统性红斑狼疮疾病活 动性指数（ＳＬＥＤＡＩ）估计ＳＬＥ的病情活动性。结果ＳＬＥ患者ＰＢＭＣ分泌ＩＬ－１２水平［（６４５．０５±１３．８５）ｐｇ／ｍｌ］较正常对照 ［（６５７．９６±６．９１）ｐｇ／ｍｌ］低（ｔ＝３．６９５,Ｐ＝０．０１）,且与ＳＬＥＤＡＩ呈负相关（ｐ＝０．８７３,ｔｒ＝８．２０５,Ｐ＜０．０１）。结论ＳＬＥ患者存在 ＩＬ－１２水平的异常,且ＩＬ－１２水平可作为评价ＳＬＥ患者病情活动性大小的一个有效指标。     

肾病综合征病人抗氧化功能的研究

为研究肾病综合征（ＮＳ）时抗氧化功能状况，我们测定３６例患者血超氧化物歧化酶（ＳＯＤ）、丙二醛（ＭＤＡ）及维生素Ｅ，以及尿ＳＯＤ、ＭＤＡ。结果表明：ＮＳ患者血总ＳＯＤ、Ｃｕ－Ｚｎ－ＳＯＤ及维生素Ｅ水平明显低于正常对照组（分别为７６．２２±２７．４８μＵ／Ｌ比１０４．２０±１８．８０μＵ／Ｌ，Ｐ＜０．００１；２０．４０±２２．６３μＵ／Ｌ比６２．９９±１５．６０μＵ／Ｌ，Ｐ＜０．００１；６．６８±３．５２ｍｇ／Ｌ比１６．３８±１．０５ｍｇ／Ｌ，Ｐ＜０．００１）；尿ＳＯＤ及ＭＤＡ明显高于对照组（分别为：１１４．９８±３１．７３μＵ／Ｌ比８２．３４±２６．５０μＵ／Ｌ，Ｐ＜０．００１；３．９９±１．９８μｍｏｌ／Ｌ比２．６４±０．７８μｍｏｌ／Ｌ，Ｐ＜０．００１）．研究提示，ＮＳ时抗氧化功能减退，肾脏易遭受氧自由基损害。     

用酶联免疫法研究糖尿病患者低密度脂蛋白的受体结合

目的探讨糖尿病患者低密度脂蛋白（ＬｏｗＤｅｎｓｉｔｙＬｉｐｏｐｒｏｔｅｉｎ，ＬＤＬ）与其受体的特异结合。方法用荧光法测正常组（ＨｂＡ１ｃ，３．９６％～５．３０％）、糖尿病Ⅰ组（ＨｂＡ１ｃ＜７．６０％）和Ⅱ组（ＨｂＡ１ｃ＞９．３０％）的ＬＤＬ糖化值，用酶联免疫受体法测上述三组的ＬＤＬ与人胚肺成纤维细胞ＬＤＬ受体的特异结合。结果对照组、糖尿病Ⅰ组和Ⅱ组的ＬＤＬ糖化值分别为１８．２±２１．８７、３２．１５±５．２３和６８．５３±８．９６Ｇｌｙｃｏｇｒｏｕｐｓ／ＬＤＬ，而ＬＤＬ受体特异结合分别为２５．１６±２．３４、３２．８９±３．５６和４２．３３±４．１４ｍｇ／ｇ细胞蛋白，糖尿病Ⅰ组和Ⅱ组的ＬＤＬ糖化值及ＬＤＬ受体特异结合均高于对照组（Ｐ＜０．０１），Ⅱ组又高于Ⅰ组（Ｐ＜０．０１）。结论糖尿病患者ＬＤＬ糖化高于正常人，但其ＬＤＬ受体特异结合较正常人低，且糖化程度越高则ＬＤＬ受体结合下降越明显。     

N－单甲基左旋精氨酸对犬冠脉内皮依赖性舒张功能及内皮素－1含量的影响

作者在开胸麻醉犬心脏上，观察冠脉内灌注Ｎ－单甲基左旋精氨酸（Ｌ－ＮＭＭＡ）５ｍｇ／ｋｇ，前后冠脉血流动力学、冠脉血流储备（以阻断冠脉１５ｓ再灌注所致的反应性充血血流峰值表示）以及冠脉对不同浓度乙酰胆硷（Ａｃｈ）反应的变化，同时用放射免疫法（ＲＩＡ）测定冠脉前降支（ＬＡＤ）伴行静脉血中的内皮素－１（ＥＴ－１）含量．结果证明，Ｌ－ＮＭＭＡ灌注后心率下降，基础冠脉血流量（ＣＢＦ）下降（χ±ｓ，从２７±６ｍｌ／ｍｉｎ下降至２０±８ｍｌ／ｍｉｎ，Ｐ＜０．０５），冠脉储备下降（χ±ｓ，从９１±１９ｍｌ／ｍｉｎ下降至５０±１０ｍｌ／ｍｉｎ，Ｐ＜０．０１），平均主动脉压升高，ＥＴ－１含量明显升高（χ±ｓ，从６．５±１．０ｎｇ／Ｌ升至１５．５±３．０ｎｇ／Ｌ，Ｐ＜０．０１），Ａｃｈ引起的ＣＢＦ增加减弱（Ｐ＜０．０１）．实验结果提示，生理条件下犬冠脉一氧化氮（ＮＯ）形成对ＣＢＦ，冠脉储备有重要调节作用，同时可抑制冠脉ＥＴ－１释放．     

蝎毒抗癌多肽对4种人肿瘤细胞系的作用

目的：观察蝎毒抗癌多肽（ａｎｔｉｎｅｏｐｌａｓｔｉｃｐｏｌｙｐｅｐｔｉｄｅｆｒｏｍＢｕｔｈｕｓＭａｔｅｎｓｉｖｅｎｏｍ,ＡＰＢＭＶ）对人肿瘤细胞生长的抑制作用。方法：采用噻唑蓝（ＭＴＴ）法、台盼蓝拒染法和集落形成观察为指标,丝裂霉素Ｃ（ＭＭＣ）为阳性对照药品,以ＡＰＢＭＶ４ｍｇ／Ｌ,８ｍｇ／Ｌ,１２ｍｇ／Ｌ和１６ｍｇ／Ｌ处理４种人肿瘤细胞（人早幼粒白血病细胞株ＨＬ６０、人肝细胞癌细胞株ＳＭＭＣ７７２１、人低分化鼻咽上皮癌细胞株ＣＮＥ２Ｚ和人胃癌细胞株ＭＧＣ８０３）,选用不同的作用时间点,分别观察ＡＰＢＭＶ对上述细胞的影响。结果：ＡＰＢＭＶ对ＨＬ６０、ＳＭＭＣ７７２１、ＣＮＥ２Ｚ和ＭＧＣ８０３细胞均有显著的细胞毒性作用,ＨＬ６０和ＳＭＭＣ７７２１比后两者显示出更好的量效关系（ｒ＝０．９８２８,ｒ＝０．９８６３,Ｐ＝０．０２）。ＡＰＢＭＶ处理ＨＬ６０和ＳＭＭＣ７７２１细胞２４ｈ,４８ｈ和９６ｈ后,两种细胞的生长均受到抑制（Ｐ＜０．０５,Ｐ＜０．０１）,并有显著的剂量效应关系;处理ＳＭＭＣ７７２１细胞２４ｈ,４８ｈ和９６ｈ时ＡＰＢＭＶ的ＩＣ５０分别是１５．８７ｍｇ／Ｌ、１３．０５ｍｇ／     

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…     

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.     

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     

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.     

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.     

Acupuncture Combined with Spinal Tui Na for Treatment of Primary Dysmenorrhea in 30 Cases

Objective: To observe the therapeutic effects in acupunture treatment of primary dysmenorrhea combined with spinal Tui Na, and study its mechanism. Methods: Thirty cases of the treatment group were treated by acupuncture combined with spinal Tui Na, and thirty cases in the control group were treated by routine acupuncture. Results: The total effective rate was 93.3% in the treatment group, and 73.3% in the control group, with a significant difference between the two groups (P<0.05). Conclusions: Acupuncture combined with spinal Tui Na has good prospects for treatment of primary dysmenorrhea.     

Luo Lingjie's Experience in Treating Chronic Nephropathy

In treating chronic nephropathy,Luo Lingjie,a chief physician,pays attention to regulating the balance between yin and yang,treating infection if present,and removing pathogenic factors.He prescribes gentle drugs and uses carefully strongly warming-tonifying ones,emphasizes the importance of persuading the patient to persist in treatment with medication and nurse one's health for recuperation,and is good at combined use of TCM and western medicine therapy and brings the merits of various therapies into full play,with obvious theraoeutic effects.