电针周围性面瘫患者地仓穴的fMRI研究

目的：采用功能性磁共振成像（fMRI）技术,研究电针周围性面瘫患者地仓穴对脑功能的影响。方法：筛选6例左侧周围性面瘫患者为研究对象,电针刺激,同时行全脑fMR I扫描,SPM软件进行图像后处理,t检验（P〈0.01）分析得出电针不同穴位的脑功能图像。结果：双侧中央前回、双侧中央后回等多个脑区信号发生变化。结论：电针刺激引起了多个脑区信号的变化,穴位治疗作用的发生可能是多个脑区互相联络,对信息进行分析、整合,共同作用的结果。     

Effets de différents antioxydants sur la lipoperoxydation in vitro initiée par le radical °OH

Rationale and ObjectiveThe study of the oxidative stress remains an analytical challenge and a model of lipid peroxidation is described for this purpose: it is based on a hydrogen peroxide- porphyrin mix as an °OH generator and artificial «plasma» as acceptor.Materials and MethodsLipid peroxidation is assessed by the measurement of true malondialdehyde with a specific HPLC-UV method. This model is used for checking the role of four antioxidants, the first one being a hydrophilic compound (Trolox) and the others natural lipophilic molecules (α tocophérol, β carotene and lycopene).ResultsA linear relationship between concentrations and inhibition of MDA production is shown for the four compounds.ConclusionThis model, easy to handle, could therefore be useful for testing in vitro both hydrophilic and lipophilic antioxidants.     

医院PSA制氧系统购置及配置论证

PSA方式制氧是目前最先进的制氧方式，PSA制氧系统是各医院首选的供氧设备。本文阐述了PSA制氧的工作原理及购置理由，并就如何配置此系统进行了全面地论证。     

维生素C浸泡羊膜对眼碱烧伤后移植的可用性研究

目的探讨维生素C浸泡羊膜的特性和生物活性物质的改变,以求为维生素C浸泡羊膜在眼碱烧伤羊膜移植中的合理应用提供依据。方法维生素C浸泡新鲜羊膜、保存1月羊膜,分别观察其大体物理特性、光学显微镜观察组织特性、免疫组织化学检测细胞因子的表达。结果维生素C浸泡羊膜与非浸泡羊膜的大体物理特性及光学显微镜观察组织特性无显著差别、部分细胞因子的活性表达无改变。结论维生素C浸泡羊膜不改变羊膜的组织学特性及部分细胞因子的活性,可以方便、安全地应用眼碱烧伤的移植治疗。     

关于放射治疗科室的组建

论述了医院组建放射治疗科室进行可行性分析时应考虑的因素,从技术设施、诊疗室与住院病房等方面介绍了放射治疗科的基本组建要求。     

江汉平原鼠间流行性出血热感染研究

为了解湖北省江汉平原流行性出血热（ＥＨＦ）疫区鼠间感染状况，采用挖洞法捕鼠，鉴定鼠种、性别和年龄，检查有无皮肤破伤，检测ＥＨＦＶ抗原抗体。结果，黑线姬鼠和褐家鼠占所捕鼠的６９．７％和２３．６％，其ＥＨＦＶ感染率分别为２１．８％和３０．９％。鼠间ＥＨＦＶ感染，成年鼠显著高于亚成年鼠和幼年鼠，感染率分别为４０．８％、１７．０％和１２．４％；皮肤破伤鼠感染率４５．９％，显著高于非皮肤破伤鼠的１３．９％。感染鼠以窝为单位具有明显的窝聚集性，而感染鼠窝在地理空间上则随机分布。感染鼠血清分型，黑线姬鼠以野鼠型为主，少数为未定型；褐家鼠以家鼠型为主，亦有少数未定型。这表明，江汉平原ＥＨＦ疫区是以黑线姬鼠和褐家鼠为主要宿主动物的家野混合型疫区；年龄、皮肤破伤和密切接触是该疫区鼠间ＥＨＦＶ传播的重要因素。     

Protective Effect of Salvia Miltiorrhizae Composita on Myocardium in Patients Undergoing Open Heart Surgery

Protective Effect of Salvia Miltiorrhizae Composita on Myocardium in Patients Undergoing Open Heart Surgery@顾家珍@李俊@刘世清@张红艳@余金甫@夏正远     

血管内皮细胞条件培养基促进胃癌细胞增殖和迁移

探讨血管内皮细胞培养基对胃癌细胞增殖和迁移的影响,分析血管内皮细胞调控胃癌细胞发生转移的机制。方法 设置对照组和共培养组,分别将正常培养基和人脐静脉血管内皮细胞HUVEC条件培养基作用于胃癌细胞HGC27,采用MTT法和划痕试验检测胃癌细胞HGC27的增殖活性和迁移能力。设置Control组、6 h组、12 h组和24 h组,以HUVEC的条件培养基作用于胃癌细胞6、12和24 h,Western blot检测EMT标志物和紧密连接蛋白的表达变化,激光共聚焦显微镜观察细胞骨架和紧密连接蛋白的分布变化。结果 MTT及划痕试验表明HUVEC条件培养基促进胃癌细胞HGC27的增殖和迁移。与Control组比较,间接共培养后胃癌细胞的形态呈间充质状改变,丝状伪足样凸起数量显著增加。 Western blot结果显示间接共培养后胃癌细胞上皮标志物E-cadherin表达水平逐渐下降,而间充质标志物N-cadherin和MMP-9逐渐增加,具有时序性变化规律。ZO-1和Occludin的表达也逐渐下降,细胞膜分布减少。结论 间接共培养下,血管内皮细胞通过上调胃癌细胞MMP-9,破坏紧密连接,促进胃癌细胞增殖和迁移     

Th17/Treg细胞免疫平衡的相关调控机制研究进展

免疫系统可识别、抵抗病原微生物及清除体内异常分裂的细胞,平衡的免疫系统对维持正常的机体反应活动至关重要。人体内的多种细胞都可参与维持免疫稳态,其中辅助性T淋巴细胞17（Th17）和调节性T淋巴细胞（Treg）发挥着重要作用,失衡的免疫系统可致多种免疫性疾病的发生。Th17/Treg细胞平衡受细胞因子、代谢、肠道微生态及翻译后修饰等多种机制调控,该文通过总结相关机制为免疫性疾病治疗提供新思路和策略。     

Effects of dexamthasone with different doses on aquaporin-4 in brain of intracerebral hemorrhage rats

Objective:To determine the relationship between the expression of aquaporin-4(AQP4) after intracerebral hemorrhage and dexamethasone treated. Methods:Collagenase Ⅶ was injected in caudate nucleus in a stereotaxis frame to establish the intracerebral hemorrhage(ICH) animal models. The intracerebral hemorrhage(ICH) rats were randomly divided into four groups: the sham group (group A), the ICH group(group B), low dosertreated group(group C), moderate dose group(group D) and high dose group(group E). The groups were respectively received an intraperitoneal dexamethasone injection with 1 mg/kg, 15 mg/kg, 30 mg/kg, twice a day for three days. The brain water content(BWC), the permeability of blood-brain barrier(BBB) and the expression of AQP4 were observed. Results:Both the BBB disruption and AQP4 expression decreased in treated groups, and the AQP4 expression had a dose-dependent manner in the dexamethasone treatment. And it seemed that low dose dexamethasone was in favor of brain swelling elimination, but the higher dosage had not similar effect. Conclusion:Dexamethesone may play a critical role on expression of AQP4 in the physiopathology of hemorrhagic edema.