COMPARATIVE STUDY OF AMINO ACID CONTENTS AND LDH ISOZYME BY ELECTROPHORESIS AND SLAB-PAGE IN ADULT WORMS OF ASCARIS LUMBRICOIDES, ASCARIS SUUM AND TOXOCARA CANIS^

Comparative studies are made on the relative percentages of amino acid content and LDH isozyme by electrophoresis and Slab-PAGE in adult worms of Ascaris lumbricoides, Ascaris suum and Toxocara canis. The results show that there are remarkable differences of Arg and His of 17 amino acids bet. ween Toxocara canis and human intestinal ascaris, human biliary ascaris and pig ascaris; there are also obvious differences of band positions of LDH isozyme electrophoretic patterns and band position and amount of slab-PAGE patterns among them, whereas no marked differences are found in these three indices in human intestinal ascaris, human biliary ascaris and pig ascaris.     

肾动脉狭窄支架植入术的临床疗效观察

目的探讨肾动脉狭窄支架植入术的临床疗效.方法1997年1月～2004年12月,我院行支架介入治疗肾动脉狭窄27例.对27例术前、术后及随访期内血压、肾功能以及生活质量进行评估,并与同期单纯药物治疗肾动脉狭窄27例进行比较.结果介入组27例植入支架40枚,手术成功24例(88.9%,24/27),失败3例(11.1%,3/27),手术并发症5例(18.5%,5/27).术后在血压下降(包括收缩压舒张压)肌酐下降,肾小球滤过率增加方面,介入组获益率明显优于药物组,两组比较差异均有显著性,术后随访6个月～8年6个月,中位数为1年9个月,介入组有19例能比较健康的生活和工作,药物组仅12例能维持生活和工作.结论支架介入治疗较单纯药物治疗肾动脉狭窄疗效显著.     

癌症病人症状与生活质量的相关性研究

[目的]探讨恶性肿瘤病人的症状对生活质量(QOL)的影响,以寻找提高其生活质量的护理对策。[方法]采用癌症病人生存质量表,对600例住院恶性肿瘤病人进行调查,并分析其症状与生活质量的相关性。[结果]癌症病人生活质量总分83.00分±22.00分,且症状与生活质量呈负相关(r=0.289,P<0.05)。[结论]在护理过程中,应根据病人的具体情况,实施护理干预,积极控制病人症状,以提高癌症病人生活质量。     

食管癌三维适形后程加速超分割放射治疗的疗效分析

目的评价三维适形后程加速超分割放射治疗食管癌的疗效及放疗反应、并发症。方法2002年2月至2004年5月,71例食管鳞癌随机分成两组,三维适形后程加速超分割组36例,食管病变上下外约4cm,前后、左右外约0.5~1cm作为PTV1,每次2GY,每周5次,DT40GY后,病变上下外约2cm,前后、左右外约0.5~1cm作为PTV2,每日2次,每次1.5GY,间隔4~6小时,总疗程6周,总剂量67GY/38次。非三维适形后程加速超分割组35例,时间、剂量、分割方式同适形组。所有病例均采用8MV-X外照射。结果1、2、3年的生存率和原发肿瘤的局控率,与非适形后程加速超分割比较,适形组明显提高,分别为88.9%、75%、63.9%比68.6%、51.4%、40%和86.1%、72.2%、58.3%比65.7%、48.5%、34.3%。适形组的急性放射反应明显低于非适形后程加速超分割组,两组有显著差别。结论本研究的初步结果表明食管癌适形后程加速超分割放射治疗的疗效优于非适形后程加速超分割组。     

急性低氧运动对血液流变性和红细胞形态的影响及电解质饮料的干预效果

目的:探讨急性低氧运动对血液流变性和红细胞形态的影响以及补充电解质饮料的干预效果。方法:受试者为8名健康成年男性,均进行两次实验。第1次为急性低氧运动加补充电解质饮料(运动前和运动中)实验,第2次为急性低氧运动不补充任何液体实验,两次实验间隔1周。受试者以70%最大摄氧量(VO2max)强度在低氧环境(O2浓度为15.5%,环境温度为20℃,湿度为55%)下进行1小时的功率自行车运动。分别测定受试者运动前、后的血液流变学指标并观察其红细胞形态的变化。结果:不补液情况下,受试者运动后的血液粘度、红细胞压积及红细胞刚性指数显著增加(P<0.01)。红细胞形态由双凹圆盘形变为一面凸、一面凹的草帽形。运动前和运动中补充电解质饮料,受试者运动后的各项血液流变学指标与运动前相比变化均不显著(P>0.05),且运动后红细胞形态未见明显变化。结论:运动前和运动中补充电解质饮料可缓解急性低氧运动对机体血液流变性产生的不良影响。     

The role of endotoxin in the pathogenesis of experimental multiple system organ failure: a preliminary report.

In this study, an animal model of multiple system organ failure (MSOF) in rabbits, engendered by feeding E. coli prior to severe hemorrhagic shock, was used for the purpose of investigating 1) the relationship between lipopolysaccharide (LPS) and MSOF, and 2) the effectiveness of Re-LPS antiserum in preventing MSOF. The results showed that endotoxemia occurred very early, and its degree correlated well with that of organ dysfunction. Re-LPS antiserum administration abated the toxic effects and lowered the incidence of MSOF. These results suggest that sequential analysis of circulating LPS levels may be useful for the early diagnosis of MSOF, and that gut-derived endotoxin might play an important role in the pathogenesis of experimental MSOF.     

老年人与青年人皮肤血流量比较研究

目的 判定增龄对皮肤血流量的影响。方法 用PIM2-LDPI检测皮肤血流量。结果 老年组前额、左手指背、命门穴部位皮肤血流量分别为:(1.94±0.86)V,(1.92±0.52)V和(0.71±0.19)V,与青年组比较差异无显著性。但是,老年男性在命门穴的皮肤血流量明显高于青年男性(P<0.05),老年女性前额的皮肤血流量明显降低(P<0.01)。男性比女性的皮肤血流量高。结论 皮肤血流量的差异无年龄相关性,男性组的皮肤血流量比女性组高。     

64层螺旋CT诊断先天性冠状动脉起源异常的价值

目的：探讨64层螺旋CT冠状动脉造影诊断冠状动脉起源异常的临床价值。材料和方法：回顾性总结2005年12月至2006年12月间1800例64层螺旋CT冠脉造影的结果，统计冠状动脉起源异常的发生率。结果：1800例检查者中发现冠脉起源异常51例，发病率2．8％。包括右冠状动脉变异11例（21．6％）、左冠状动脉变异8例（15．7％）、左右冠均发生变异1例（2％）、单支冠状动脉1例（2％）、分支变异28例（54．9％）。结论：64层螺旋CT是诊断冠状动脉起源异常的安全有效方法，对临床治疗有重要的意义。     

变异髋臼初次全髋人工关节置换术前设计及临床意义

目的:探讨变异髋臼初次全髋人工关节置换术中髋臼假体的正确放置位置及手术疗效。方法:对34例(38髋)接受全髋关节置换的髋臼变异的各类髋关节疾病进行术前设计,其中男20例,女14例,平均年龄56.1岁(29~75岁)。股骨头坏死继发骨性关节炎15例(19髋),髋臼发育不良继发骨性关节炎12例,创伤性骨关节炎5例,髋关节融合术后1例,髋关节人工股骨头置换术后1例。结果:术后患者均获得随访,平均随访11个月(5~38个月)。根据Harris髋关节功能评分评定,优(>90分)12髋,良(80~90分)23髋,尚可(70~79分)3髋,失败0髋(<70分)。评定结果:术前Harris评分平均47.9分,术后平均90.3分。结论:对于髋臼解剖结构异常的髋关节疾病患者行全髋人工关节置换时,通过术前对髋臼正确位置的设计,使髋关节中心置于正确的位置上,既可简化术中操作的难度,又可以使臼杯假体得到牢固固定及良好的骨覆盖,有利于人工全髋关节的长期疗效。     

Cytokines and growth factors in keratinocytes and sweat glands in chronic venous leg ulcers. An immunohistochemical study

The role of growth factors and cytokines in the impaired healing of chronic leg ulcers remains uncertain. The aim of this study was to determine whether changes in the amount and location of cytokines and growth factors may be associated with impaired healing in chronic leg ulcers. Biopsies from leg ulcers of 21 patients and from normal skin of nine healthy volunteers were examined immunohistochemically for selected growth factors and cytokines. Greater staining intensity was found in keratinocytes at the edges of ulcers compared to normal skin, or skin adjacent to the ulcers. Staining at the ulcer edge was more intense in nonhealing ulcers for only vascular endothelial growth factor and platelet-derived growth factor, whereas staining in the adjacent skin was more intense for all factors in the nonhealing phase. For all factors staining was cytoplasmic, suggesting production in these areas. This study shows up-regulation of the production of cytokines and growth factors in keratinocytes of chronic leg ulcers that is greater when the ulcers are nonhealing.