大鼠脑干缺血模型制备及早期超微结构观察

目的:制备脑干缺血动物模型并观察大鼠脑干缺血后早期组织学病理的超微结构。方法:应用两点电凝基底动脉的方法制作鼠脑干缺血动物模型。结果:病理学观察发现脑干缺血2小时即可出现超早期病理变化,并随时间的延长缺血性损害逐渐加重。结论:两点电凝基底动脉后可以造成稳定的脑干缺血,对急性脑干缺血的病理学研究有一定的价值。     

军人花粉症106例快速免疫治疗

目的　探讨军人花粉症治疗的有效方法。方法　采用提高起始浓度和快速递增浓度 ,上臂外侧皮下注射的方法对 10 6位军人花粉症患者行快速免疫治疗 ,并对每一位患者治疗前后检测血清中总IgE和嗜酸细胞阳离子蛋白 (ECP)。 结果　治疗前后患者总IgE和ECP值有显著性差异。 10 6例患者经 1～ 3年随访复查 ,78例 2个以上发病季节未发作 ,或仅有轻微鼻痒、眼痒 ,18例症状减轻 ,发病时间缩短半月 ,10例症状无明显改善。显效 82例 ,有效 14例 ,无效 10例 ,总有效率为 90 .5 7%。结论　快速免疫治疗能使患者血清总IgE和ECP下降 ,对军人花粉症疗效好。     

乳腺导管瘘的诊断和治疗：附40例报告

为探讨乳腺导管瘘的诊断和治疗方法，笔者回顾分析2年间收治的40例乳腺导管瘘患者的临床资料。诊断主要依据病史、体征和病理检查。治疗采用完整切除瘘管和受累乳导管，去除炎性组织，并充分引流的方法，通过肉芽组织生长使乳管瘘痊愈。结果显示，全部病例均治愈，随访其中37例住院治疗的患者2.5年，无1例复发。提示：在治疗上完整切除瘘管和受累乳导管，修复乳头畸形，是防止导管瘘复发的关键。     

营养素食预防化疗患者便秘的效果观察

目的 观察营养素食预防化疗患者便秘的效果。方法 选择128例化疗患者，随机分为观察组和对照组各61例，对照组常规正常饮食，观察组于化疗开始当天实施营养素食．连续7～10d，比较两组患者便秘发生率及体重、血红蛋白、白蛋白等指标。结果　对照组便秘发生率显著高于观察组（P〈0．01）；两组化疗后营养指标比较，差异无显著性意义（均P〉0．05）。结论　营养素食对化疗患者便秘有较好的预防作用。     

汶川大地震后送伤病员病情特点及救治要点

2008年5月12日发生的汶川里氏8．0级地震造成37万余人受伤，近90％为肢体创伤病员。其中，10％-15％患者伴有颅面、胸腹部等处创伤。我院于2008年5月23日及28日分两批收治47名震区空运伤病员，其中骨科伤病员41例。本文针对我院接收的41例骨科伤病员的入院时病情特点、治疗措施及原则等作一简要总结。     

大肠癌182例分析

目的研究大肠癌的发病情况、病理类型及临床表现并探讨其临床意义。方法回顾该院1987～2006年经大肠镜及病理检查确珍的大肠癌病例,对比性分析老年组（≥60岁）和非老年组（〈60岁）前10年（1987～1996年）及后10年（1997～2006年）大肠癌发病特点。结果后10年大肠癌发病率显著上升,主要以老年组增高为主,非老年组增加不明显。老年组与非老年组大肠癌的发病部位相同,依次为直肠、左半结肠、右半结肠,最好发的部位为直肠、乙状结肠。病理类型仍然为肿块型、溃疡型和浸润型。血便、黏液脓血便仍然是大肠癌最常见的临床表现。结论20年间大肠癌发病率迅速上升,前10年仅占26.2%,后10年占73.8%,老年组发病率明显增高。老年组与非老年组其发病部位、病理类型、临床表现差异均无显著性。     

Electrophysiological study on differentiation of rat bone marrow stromal stem cells into neuron-like cells in vitro by edaravone

To explore the electrophysiological proper-ties of differentiation of rat bone marrow-derived stromal stem cells (rBMSCs) to neuron-like cells in vitro by edaravone, a new type of free radical scavenger. Methods: Stromal stem cells were separated from rat bone marrow with Ficoll-Paque reagent and expanded in different culture medium in vitro, rBMSCs were induced by edaravone containing serum-free L-DMEM. Morphologic observation and Western blot analysis including the ex-pression of Nav1.6, Kv1.2, Kv1.3, Cav1.2 were performed, and whole patch-clamp technique was used. Results: Cyton contraction and long processes were shown in differentiated stromal stem cells. Nav1.6, Kv1.2, Kv1.3 and Cav1.2 were expressed in both differentiated and undifferentiated cells. However, the expression of channel proteins in differentiated cells was up-regulated. Consistently, their resting potential and outward currents were also enhanced in the differentiated cells, which was especially significant in the outward rectifier potassium current. Conclusion: In vitro, neuron-like cells derived from rBMSCs, induced by edaravone, possess electrophysiologi-cal properties of neurons.     

Electrochemical investigation of formic acid electro-oxidation and its crossover through a Nafion® membrane

This work studies formic acid as an anode fuel for polymer electrolyte fuel cells and investigates the electro-oxidation of formic acid on Pt/C. Fuel crossovers through the Nafion^® 115 membrane at different temperatures and concentrations are reported. A linear dependence of the crossover current on the temperature and concentration is obtained. It is found that the crossover can be reduced by five times and a higher performance can be rendered by formic acid when compared to methanol under the same conditions. Electrochemical impedance measurements are conducted to interpret the reaction mechanism of formic acid oxidation. The effect of the electrode potential on the impedance pattern is revealed and an impedance model incorporating the reaction kinetics information is developed to simulate the experimental impedance response.     

单甲氧聚乙二醇化学修饰药物酶的研究进展

用单甲氧基聚乙二醉(1)化学修饰药物酶是生化药物研究开发的重要手段之一。本文综述了1化学修饰药物酶的一般方法及修饰后酶在生物和理化性质方面的变化，同时对1研究前景进行展望，并指出了尚待解决的问题。     

对慢性心力衰竭病人治疗与护理的研究进展

心力衰竭已日益成为心血管病中对病人危害最大的疾病,因此对心力衰竭病人的治疗与护理应引起重视,现对心力衰竭病人的治疗与护理的研究进展进行了综述.