瞬目反射和面神经运动传导检测对面神经炎早期诊断的价值

面神经炎,又称Bell麻痹,是指原因不明的急性发病的单侧周围性面神经麻痹. 瞬目反射(BR)和面神经运动传导速度(MCV)等是目前常用的面神经炎检查方法,现收集材料2004-06～2006-10月我科临床诊断面神经炎的56例患者的BR及MCN检查,分析报告如下.     

两种方案治疗多囊卵巢排卵障碍的疗效分析

目的 探讨提高多囊卵巢排卵障碍的排卵率及妊娠率的方法.方法 根据体内雄激素水平的不同,将40例多囊卵巢综合征(PCOS)患者分为两组,雄激素正常者(克罗米酚组)21例,单用克罗米酚诱发排卵;雄激素高于正常者(达英组)19例,先用达英-35治疗3个周期后再用克罗米酚诱发排卵.结果 排卵率及受孕率达英组均明显高于克罗米酚组(P＜0.05).结论 对PCOS排卵障碍的患者,应根据雄激素水平,选择合理的治疗方案.     

rAAV-Fab转染小鼠骨骼肌体内表达分析

目的 乙肝表面抗体是一种保护性抗体,利用基因重组法构建含乙肝表面抗原抗体Fab基因的重组腺相关病毒(rAAV-Fab),通过转染小鼠腿部骨骼肌,观察此种转染途径,Fab的表达情况.方法 肌肉注射1011、5×1010、5×1093种滴度的rAAV-Fab,感染小鼠腿部肌肉组织,用荧光免疫吸附法检测血清中Fab含量变化.免疫组化分析表达分布.病理组织学检测转染后组织损伤.结果 小鼠肌注rAAV-Fab后,2个月内在血清中均有持续较高表达Fab,其后呈现较低趋势,直至第4个月观察结束.转染后,全身多个脏器组织切片均可检测到阳性信号,但3种病毒滴度转染比较,肝脏转染并无差异.主要脏器病理检查结果为阴性.结论 骨骼肌转染rAAV-Fab能够有效介导Fab基因在小鼠体内表达,转染广泛,且此方法安全有效,为进一步实验研究提供了依据.     

结缔组织生长因子诱导人肾小管上皮细胞向间充质细胞转化的实验研究

Objective To investigate the role of connective tissue growth factor ( CTGF) in epithelial mesenchymal transition of HK-2 cells in vitro.Methods HK-2 cells were randomly divided into two groups; (1) control group including cells cultured in DMEM medium supplemented with 10% fetal bovine serum only; and (2) experimental group including cells cultured in DMEM medium supplemented with 10% fetal bovine serum and recombinant CTGF at a final concentration of 5 p-g/L The cells were collected at 72 h time points.Direct immunoiluorescence staining and immunohistochemistry were used to evaluate the E-cadherin,Vimentin,α-SMA and ERK2 in cells.Western-blotting was used to detect the E-cadherin,Vimentin and ERK2 protein expression.Boyden Chamber was used to detect the migration of tubular endothelium at 1 d,3 d and S d.Results There were less E-cadherin but more Vimentin expressed in cells of the experimental group.The presence of α-SMA was detected at 48 h with peak at 72 h in the cells of the experimental group.On the first day,the cellular migration in the two groups showed no difference.However,after 3 days,the transformed cells migrated surpassed the control group with peak at the 5th day [ (45.0±1.1) : (14.0±1.2),P < 0.05 ) ].Conclusion Connective tissue growth factor induces mesenchymal transformation of HK-2 cells,in which the ERK2 signaling pathway may play an important role.     

结缔组织生长因子诱导人肾小管上皮细胞向间充质细胞转化的实验研究

Objective To investigate the role of connective tissue growth factor ( CTGF) in epithelial mesenchymal transition of HK-2 cells in vitro.Methods HK-2 cells were randomly divided into two groups; (1) control group including cells cultured in DMEM medium supplemented with 10% fetal bovine serum only; and (2) experimental group including cells cultured in DMEM medium supplemented with 10% fetal bovine serum and recombinant CTGF at a final concentration of 5 p-g/L The cells were collected at 72 h time points.Direct immunoiluorescence staining and immunohistochemistry were used to evaluate the E-cadherin,Vimentin,α-SMA and ERK2 in cells.Western-blotting was used to detect the E-cadherin,Vimentin and ERK2 protein expression.Boyden Chamber was used to detect the migration of tubular endothelium at 1 d,3 d and S d.Results There were less E-cadherin but more Vimentin expressed in cells of the experimental group.The presence of α-SMA was detected at 48 h with peak at 72 h in the cells of the experimental group.On the first day,the cellular migration in the two groups showed no difference.However,after 3 days,the transformed cells migrated surpassed the control group with peak at the 5th day [ (45.0±1.1) : (14.0±1.2),P < 0.05 ) ].Conclusion Connective tissue growth factor induces mesenchymal transformation of HK-2 cells,in which the ERK2 signaling pathway may play an important role.     

结缔组织生长因子诱导人肾小管上皮细胞向间充质细胞转化的实验研究

Objective To investigate the role of connective tissue growth factor ( CTGF) in epithelial mesenchymal transition of HK-2 cells in vitro.Methods HK-2 cells were randomly divided into two groups; (1) control group including cells cultured in DMEM medium supplemented with 10% fetal bovine serum only; and (2) experimental group including cells cultured in DMEM medium supplemented with 10% fetal bovine serum and recombinant CTGF at a final concentration of 5 p-g/L The cells were collected at 72 h time points.Direct immunoiluorescence staining and immunohistochemistry were used to evaluate the E-cadherin,Vimentin,α-SMA and ERK2 in cells.Western-blotting was used to detect the E-cadherin,Vimentin and ERK2 protein expression.Boyden Chamber was used to detect the migration of tubular endothelium at 1 d,3 d and S d.Results There were less E-cadherin but more Vimentin expressed in cells of the experimental group.The presence of α-SMA was detected at 48 h with peak at 72 h in the cells of the experimental group.On the first day,the cellular migration in the two groups showed no difference.However,after 3 days,the transformed cells migrated surpassed the control group with peak at the 5th day [ (45.0±1.1) : (14.0±1.2),P < 0.05 ) ].Conclusion Connective tissue growth factor induces mesenchymal transformation of HK-2 cells,in which the ERK2 signaling pathway may play an important role.     

足阳明经穴针刺血清对家兔离体胃窦平滑肌细胞内钙离子浓度影响的实验研究

目的：观察足阳明经穴针刺血清对家兔离体胃窦平滑肌细胞内钙离子（Ca^2＋）浓度的影响。方法：将45只家兔随机分为5组各9只。生理盐水组，耳缘静脉滴注0．9％NaCl溶液；阿托品模型组，耳缘静脉滴注以生理盐水配制的2．5mg／100ml的阿托品；足阳明经穴组，造模并电针双侧足三里、天枢、梁门、四白穴；足少阳经穴组，造模并电针双侧阳陵泉、带脉、13月、阳白穴；足太阳经穴组，造模并电针双侧承筋、背下点、背上点、攒竹穴。分组处理后，颈动脉采血制备血清。另取正常家兔10只，制备正常兔胃窦平滑肌细胞悬液。取各组1：2稀释的血清与同体积的正常兔胃窦平滑肌细胞悬液作用，以荧光分光光度计测定细胞内Ca^2＋浓度。结果：阿托品模型组Ca^2＋浓度低于生理盐水组，差异有显著性意义（P〈0．05）；足阳明经穴组Ca^2＋浓度明显高于生理盐水组、阿托品模型组、足少阳经穴组、足太阳经穴组，差异均有非常显著性意义（P〈0．01）；足少阳经穴组与足太阳经穴组比较，差异无显著性意义（P〉0．05）。结论：足阳明经穴针刺血清使离体胃窦平滑肌细胞内Ca^2＋浓度升高具有经脉的相对特异性。     

针刺足阳明经穴对家兔胃窦平滑肌细胞内钙离子浓度的影响

目的:探讨针刺足阳明经穴对胃平滑肌细胞内第二信使Ca2 的影响.方法:将45只家兔随机分为生理盐水组、阿托品模型组、针刺足阳明经穴组、针刺足少阳经穴组、针刺足太阳经穴组,每组9只.分组处理后,取胃窦平滑肌,制成活的单个平滑肌细胞悬液,以荧光分光光度计测定细胞内钙离子浓度([Ca2 ]i).结果:针刺足阳明经穴组胃窦平滑肌细胞内[Ca2 ]i明显高于阿托品模型组(P＜0.01),而其他各组间细胞内[Ca2 ]i差异均无显著性意义(P＞0.05).结论:针刺足阳明经穴对胃运动的影响与胃平滑肌细胞内Ca2 释放有关.     

大鼠供肾转染反义ERK2基因减缓肾移植后慢性移植肾肾病的作用及机制

目的 研究腺病毒介导的反义ERK2(A-dant-ERl(2)基因转染供肾对减缓肾移植后发生慢性移植肾肾病(CAN)的作用及机制.方法 建立大鼠间肾移植模型.按供肾移植前处理方式的不同分为对照组、空载病毒组和基因转染组,每组6只.对照组供肾灌注无菌HTK液0.5 ml,空载病毒组供肾灌注含5x109>pfu LaeZ基因腺病毒(Ad-LacZ)的HTK液0.5 ml,基因转染组供肾灌注含5x 109>pfu Adanti-ERK2的HTK液0.5 ml.肾移植术后24周行移植肾的病理学观察,免疫组织化学法观察肾小管上皮细胞表面标志蛋白E-Cadherin、Vimentin、TβRⅠ的表达以及CD4+、CD8+T淋巴细胞和ED-1+细胞的浸润情况;酶联免疫法检测受者血清中转化生长因子β1>(TGF-β1>)的含量.结果 肾移植术后24周,对照组和空载病毒组移植肾呈CAN表现;肾小球硬化,肾小管萎缩明显,伴严重间质纤维化以及明显的CD4+、CD8+T淋巴细胞和ED-1+细胞浸润;病变区肾小管上皮细胞E-Cadherin表达减少,Vimentin、TβRⅠ表达显著增多.基因转染组移植肾间质内仅有少量CD4+、CD8+T淋巴细胞和ED-1+细胞浸润;肾小管上皮细胞E-Cadherin表达正常.对照组和空载病毒组血清中TGF-β1>,含量明显高于基因转染组.结论 Adanti-ERK2基因转染移植肾可减缓CAN的发生,对移植肾具有保护作用.这种保护机制可能与减少炎症细胞的浸润、下调TGF-β1>,等致纤维化因子的表达以及抑制肾小管上皮细胞向间充质细胞的转化有关.     

芬太尼罗哌卡因硬膜外阻滞麻醉对分娩镇痛的效果分析

目的 研究芬太尼罗哌卡因在连续硬膜外分娩镇痛,及产妇在分娩过程中对产程和胎儿的作用.方法 选自愿接受分娩镇痛的100例,初产妇62例,经产妇38例,宫口开大1～2 cm时行分娩镇痛为观察组,100例未行分娩镇痛初产妇66例,经产妇34例为对照组,监测项为血压、脉搏,观察产程时间,产后出血、镇痛效果,新生儿评分.结果 镇痛组无不良后果,产妇情绪稳定,产程明显缩短,产后出血及新生儿Apager评分无明显差异.结论 产妇宫口开大1～2 cm,宫内压到75～85 mmHg时,明显疼痛时,用芬太尼罗哌卡因硬膜外阻滞麻醉临床效共趟醵?疼痛降低,母婴安全.