匹罗卡品致(癎)大鼠海马中表达生长抑素的中间神经元数目变化及其轴突出芽

Objective To investigate the roles of somatostatin(SS)positive intemeurons in the development and compensation of temporal lobe epilepsy.Methods Piloearpine-induced epilepsy rat model was established.Immunohistochemistry method was used to detect number changes and axonal sprouting of SS positive intemeurons in different domains of the hippocampus at difierent time points.Degeneration of SS positive interneurons and their neurophils were detected by the double immunofluorescence staining with SS and Fluoro-Jade B(FJB)at 7 and 60 days after status epilepticus (SE).Results In the exoerimental rat group,the number of SS positive neurons decreased in each hippocampal domain,and it reached the lowest at 7 days post-SE(There were 11.1±3.3 in hilus,2.8±0.9 in CA1region and 1.8±0.7 in CA1region,t=13.519,9.644 and 8.808,all P<0.01).In chronic phase,the number of SS neurons gradually recovered,and exceeded the control group in CA1 area at 60 days post-SE(12.8±1.5 vs 8.8±1.3,t=-4.506,P<0.01),however,the number of SS neurons in the hilus(25.5±4.6)and CA1 area(4.8±0.8)remained significantly less than normal levels(t value were 4.691 and 3.953.both P<0.01).Increased SS positive fibers were found in the lacunosum-molecular (1m)layer and outer molecular layer of dentate gyrus after 30 days post-SE,and numerous SS positive fibers were seen threnghout the layers of area CA1 at 60 days post-SE.Double immunofluuorescence revealed that a few SS positive interneurons and fibers were also labeled by FJB in area CA1 at 7 days post-SE and in CA domain/hilus at 60 days post-SE.Conclusions SS intemeurons loss plays an important role in the development of temporal lobe epilepsy.The loss is partially caIlsed by the degeneration and death of neurons;SS positive neurophils increase within area CA1 in chronic phase may play a significant role in the generation and compensation of temporal lobe epilepsy.     

80 例人工全髋关节置换术的中期疗效分析

目的 探讨人工全髋关节置换术的疗效。方法 回顾性研究了1997年3月至2002年12月期间连续全髋关节置换术80例(92髋)患者，平均随访54个月(14～84个月)，分析其中期疗效。结果 翻修率为5．4％(5／92)，Harris髋评分为优良以上84．8％(78／92)，中等8．7％(8／92)，差6．5％(6／92)。结论 外科技术的提高和假体生物工程的发展，提高了全髋关节置换术重建关节功能的疗效。     

深部病原真菌菌种4453株分析

目的 分析深部病原真菌菌种分布。方法 收集1991-2003年我院门诊及住院病人6533例，对其标本按真菌培养分离鉴定步骤进行鉴定。结果 分离出白念珠菌3555株(85．44％)，克柔念珠菌309株(7．43％)，高里念珠菌239株(5．74％)；呼吸系统分离出真菌3004株(68．35％)；消化系统真菌1291株(29．37％)；泌尿生殖系统87株(1．98％)；神经系统8株(0．18％)；血液5株(0．11％)。结论 念珠菌属尤其白念珠菌是我院近13年间系统性真菌感染的重要致病菌；合理应用抗生素及早期诊断尤为重要。     

宫腔镜双极汽化电切术临床分析

目的 探讨宫腔镜双极汽化切割术的安全性和疗效。方法 术前宫腔镜诊断均为黏膜下肌瘤和肌壁间凸向宫腔肌瘤36例，在宫腔镜下施行双极汽化电切术。结果 手术成功率100％，手术时间10-70分钟，平均32分钟；出血量12-100ml，平均28ml；标本重15-42g，平均31g。术中、术后无并发症。术后满意率94．4％。结论 宫腔镜双极汽化切割术具有手术时间短、出血少、无并发症等优点，疗效满意。     

肺癌的纤支镜检查与影像学征象对照观察的临床研究

目的 联合应用影像学(胸部X线和CT)提高纤支镜对肺癌的诊断。方法选择我院纤支镜后组织病理学确诊的肺癌177例，全部病例在做纤支镜前1周内进行胸部X线或CT检查，并将影像学征象与纤支镜下表现及其病理学类型进行对照分析。结果中央型肺癌165例，周围型肺癌12例；纤支镜下主要表现有：外向型生长98例，浸润型生长63例，仅见间接征象5例，未见异常12例；组织病理学类型：鳞癌117例，腺癌29例，小细胞癌24例，其它肿瘤7例；影像学征象表现有：肺部肿块影116例，阻塞性肺炎表现为主27例，以局限性肺不张表现为主19例，片状模糊的阴影12例，两肺多发结节影3例。结论 纤支镜和影像学征象对肺癌的诊断各有特点，两者联合应用，可取长补短，提高肺癌的诊断。     

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.     

小剂量FK778对大鼠移植肾慢性排斥反应的预防作用

目的探讨小剂量FK778对大鼠移植肾慢性排斥反应的预防作用。方法应用显微外科技术制作移植肾慢性排斥反应大鼠模型，将肾移植大鼠分为两组。肾移植后第16周开始治疗组大鼠接受FK778每日5mg／kg体重灌胃，对照组接受赋形剂。移植后每4周行24h尿蛋白含量测定，第24周处死大鼠，对移植肾组织行组织学、免疫组织化学及实时定量RT—PCR检测。结果治疗组大鼠蛋白尿、肾组织病理损害程度，淋巴细胞和单核／巨噬细胞浸润程度和对照组比较显著减轻，肾组织生长因子TGF-β基因的表达也减少。结论小剂量FK778能预防大鼠移植肾慢性排斥反应。移植肾组织T淋巴细胞和单核／巨噬细胞浸润减轻，TGF-β生长因子基因表达的减少，可能是其预防同种移植肾慢性排斥反应机制中的重要环节。     

经鼻垂体瘤68例切除及CT、MRI、神经导航分析

目的：探讨垂体瘤的治疗方法。方法：使用显微镜结合CT、MRI及神经导航系统行经鼻蝶手术。结果：68例病人无一人死亡，其中尿崩为7％左右，且为一过性，复发2例。结论：熟知局部解剖，利用CT、MRI及导航技术，不断提高手术技巧，有助于进一步降低经蝶垂体瘤手术并发症的发生。     

Characteristics of manifest glaucoma at early stages

Intraocular pressures and optic disc hemorrhages were studied in all cases of manifest glaucoma detected in a defined population over a decade. High intraocular pressure was found to be an unreliable signat the detection of a glaucomatous visual field defect and an unusual finding 5–10 yearsbefore. The prevalence of optic disc hemorrhages at the detection of a glaucomatous visual field defect was 33%. All but 9 of 44 persons with manifest glaucoma were found to have had at least one optic disc hemorrhage at one time or another.     

手术示教系统的细节设计

手术示教系统已是一个较为成熟的教学系统,本文将根据现时流行的几种设计方案进行分析,并对设计过程和选材中遇到的一些细节问题提出一些意见.