Agilent 2100 Bioanalyzer在人乳头瘤病毒检测中的应用

目的：探讨Agilent2100Bioanalyzer芯片分析系统（简称Bioanalyzer)在人乳头瘤病毒（HPV）的PCR检测和分组中的应用。方法：先分别进行通用引物介导PCR（GP－PCR）和型特异性引物介导PCR，扩增HPV高保守区（L1区）的共同序列和各型（包括HPV6，11，16和18型）的特型性序列，然后分别用常规的琼脂糖凝胶电泳技术和Bioanalyzer对PCR产物进行检测，并比较两种检测方法的准确度，重复性和灵敏度。结果：Bioanalyzer在确定片段长度时的准确度和重复性比琼脂糖凝胶电泳高，前者的准确度在95％以上，后者仅为85％，Bioanalyzer的检测灵敏度比琼脂糖凝胶电泳高100倍，结论：Bioanalyzer芯片分析系统结合PCR方法可对HPV进行特异，准确，稳定，灵敏的检测和型别鉴定，具有重要的推广价值。     

Synthesis, biodistribution and quantitative structure-activity relationship studies of new 99mTc labeled pseudo-peptide complexes.

Twelve new peptide or pseudo-peptide chelators have been synthesized in the course of our continuing investigation of 99mTc-labelled peptides for application for renal imaging agents. All compounds were characterized on the basis of, IR, 1HNMR, 13CNMR spectroscopy, as well as MS and elemental analysis. All peptides yield stable 99mTc complexes using Sn(II) reactive coupling and exhibit renal uptake. Linear regression analysis between Logarithm of renal uptake value (RU) and the parameters obtained by the ZINDO/1 method was performed. Some equations were obtained which showed that molecular polar and charge have some relationship with their renal uptake.     

MRI测量颈胸角在选择颈胸段脊柱手术入路中的临床应用

目的 :探讨在颈胸段脊柱术前应结合患者的颈胸段MRI的个体特征和疾病情况 ,选择手术创伤最小的手术入路。方法 :共 76例患者 ,其中 2 6例为颈胸段脊柱损伤 ,35例为颈胸段脊柱肿瘤 ,脊髓型颈椎病 12例 ,以及 3例颈胸段椎板减压术后后凸畸形。男 4 7例 ,女 2 9例。平均年龄 4 5 5岁 ,年龄范围 19～ 6 5岁。同时抽取 95套颈胸段MRI片。作胸骨上切迹向后水平延长线和胸骨上切迹向后上方至C7T1椎间盘前缘中点的连线 ,测量两线之夹角 ,称为颈胸角 (cervicothoracicangle ,CTA)。结果 :CTA平均为 4 7 6 4°(范围 2 5°～ 73°)。大于此平均角度且病灶在胸骨切迹水平线以上时可考虑低位下颈椎入路 ,5 0例 ;CTA较小 ,且病灶范围广 ,或尚累及T3 、T4,可以考虑经胸骨柄入路 ,13例 ;病灶范围广泛 ,经全胸骨入路 3例 ;Ⅰ期或Ⅱ期前后联合入路 5例 ;经右侧肩胛下后外侧胸腔入路 5例。结论 :颈胸段脊柱手术应尽量选择低位下颈椎入路等创伤较小的入路 ,其次考虑经胸骨柄入路。长节段脊柱受累的患者才考虑经右侧肩胛下后外侧胸腔或经全胸骨等创伤较大的入路。术前可以结合患者的病灶累及范围和颈胸手术角等MRI影像学表现 ,从而利于选择最合适的手术入路 ,减少手术风险、手术创伤和并发症 ,利于患者早日康复     

Inhibitory Effect of Angiogenesis Inhibitor TNP—470 on Human ACHN Renal Cell Carcinoma

Angiogenesis,the formation of new bloodvessels,is necessary for the growth of tumors andtheir metastasis.TNP- 470 is a synthetic analogueof fumagillin and has stronger antiangiogenic　 ac-tivity and less side- effects than fumagillin.Thiscompound has been reported to suppress the prolif-eration and metastasis of various kinds of tu-mors[1] . Using nude mice xenografts of ACHN hu-man renal cell carcinoma ( RCC) ,the presentstudyattempted to examine the action of TNP- 470 ongrowth,metastasi…     

Effect of Ligustrazine on Bone Marrow Microenvironment and Signal Transducti on Path in Irradiation Injured Mice

Ｗｅｈａｖｅｒｅｐｏｒｔｅｄ ｐｒｅｖｉｏｕｓｌｙｔｈａｔｌｉｇｕｓｔｒａｚｉｎｅｃｏｕｌｄｐｒｏｍｏｔｅｈｅｍａｔｏｐｏｉｅｓｉｓｔｈｒｏｕｇｈｉｍｐｒｏｖｉｎｇｂｏｎｅｍａｒｒｏｗｍｉｃｒｏｅｎｖｉｒｏｎｍｅｎｔａｎｄｅｎｈａｎｃｉｎｇａｄｈｅｓｉｖｅ     

妊娠肝内胆汁淤积症患者血清一氧化氮和内皮素的变化及意义

目的：探讨妊娠肝内胆汁淤积症（ICP）患者外周静脉血清、新生儿脐静脉血清中一氧化氮（NO）、内皮素（ET）、丙二醛（MDA）和超氧化物歧化酶（SOD）含量的变化及在ICP发病中的作用。方法：以ICP组28例为研究组，测定其外周静脉血清及新生儿脐静脉血清中的NO、ET、MDA和SOD，以年龄相近的24例正常孕妇作为对照组。结果：ICP患者的MDA和ET含量较正常晚期妊娠显著增高（P＜0．01），ICP患者的NO和SOD含量与对照组相比无显著性差异（P＞0．05）。母血清中NO、ET、MDA含量均较新生儿脐静脉血清中的含量高，差异有显著性（P＜0．01）。结论：妊娠期体内氧化和抗氧化失衡及ET水平的增高可能与ICP的发生、发展有关。     

基质金属蛋白酶-2和血管内皮生长因子在子宫内膜异位症中的表达

目的:探讨MMP-2、VEGF在内异症发生、发展中的作用及相互影响,为内异症的临床诊断和治疗提供科学依据和新思路。方法:SP法检测76例异位内膜、64例在位内膜及72例子宫肌瘤患者(对照组)子宫内膜组织中VEGF、MMP-2的表达。结果:①MMP-2表达异位内膜组强于在位内膜组和对照组;增生期异位内膜组与在位内膜组和对照组之间差异有显著性,分泌期各组内膜之间差异无显著性;正常内膜与在位内膜组分泌期高于增生期,而异位内膜组增生期和分泌期均呈高表达状态。②VEGF表达强度异位内膜组、在位内膜组和对照组依次减弱;增生期异位内膜强于在位内膜和对照组内膜,分泌期异位和在位内膜强于对照组;异位和在位内膜组分泌期强于增生期,对照组增生期和分泌期表达均较弱。③VEGF与MMP-2之间存在正相关关系。结论:MMP-2、VEGF与子宫内膜异位症的发生、发展有关,二者之间存在相互作用。     

Differences in aerodynamic characteristics of new and dysfunctional Provox®2 voice prostheses in vivo

Tracheoesophageal voice prostheses need to be replaced due to increased airflow resistance or retrograde leakage of fluid into the trachea as a consequence of biofilm formation. Previous in vitro studies show a change of aerodynamic features of biofilm covered voice prostheses after removal of the prostheses out of the patient. To assess these changes in an in situ situation, aerodynamic characteristics were measured within 45 patients at the beginning and at the end of the wearing process of the Provox 2 voice prosthesis. As a consequence, the influence of biofilm formation on aerodynamic characteristics can be evaluated. In the majority of cases, leakage through the prosthesis was the reason for replacement. No differences were found in the total flow, volume range and intratracheal pressure (ITP) of the voice prostheses measured. The airflow resistance of biofilm covered prostheses was significantly reduced compared to new clean prostheses. However, no correlation was found between the extent of biofilm and the different aerodynamic features measured. Biofilm formation on the Provox 2 is responsible for both reduction in airflow resistance and leakage through the prosthesis by deterioration of the silicone rubber material.     

高职高专学生学业不良的成因及矫正对策

相对于普通高校，高职高专学校中学业不良学生的比例更高，管理的难度更大。因此，分析、研究学生学业不良的成因，并采取科学有效的措施予以矫正，对于促进学生健康成长，全面提高教育教学质量，具有积极的意义。     

早期应用无创性通气治疗老年Ⅱ型呼吸衰竭的护理

目的　探讨应用无创性通气治疗老年Ⅱ型呼吸衰竭的护理。方法　在常规治疗的同时 ,实验组与对照组分别应用无创通气和呼吸兴奋剂治疗 ,观察 2组患者治疗前、后、治疗间歇期动脉血气变化及康复例数。结果　实验组患者治疗后血气明显改善 (P <0 .0 1) ,康复例数明显多于对照组 (P <0 .0 1)。结论　应用无创通气可促进呼吸衰竭患者的康复 ,护士要加强对患者的心理支持 ,严密监测生命体征 ,保持呼吸道通畅 ,熟练掌握无创通气呼吸机的性能、使用方法 ,防止并发症