脑卒中言语障碍120例临床分析

言语障碍是脑卒中的觉见症状,我们对120例急性脑卒中所致的言语障碍患者的临床资料进行总结分析,现报告如下.     

基于β-catenin/TCF4信号通路探究miR-455-3p对人结肠癌细胞增殖、凋亡及糖酵解的影响

目的 基于β-catenin/TCF4信号通路探究mi R-455-3p对人结肠癌细胞增殖、凋亡及糖酵解的影响。方法HCT116细胞转染mi R-455-3p mimics为mi R-455-3p转染组,HCT116细胞转染mi R-455-3p NC为mi R-NC组,HCT116细胞不转染任何质粒为空白组。MTT法检测各组HCT116细胞增殖情况;流式细胞术检测细胞凋亡情况;检测各组细胞糖酵解葡萄糖摄取量和乳酸生成量; Western blotting检测各组细胞中HK2、β-catenin、TCF4蛋白水平。结果 空白组和mi R-NC组细胞中mi R-455-3p表达量分别为0.99±0.09和1.01±0.10,均低于mi R-455-3p转染组的1.82±0.12,差异具有统计学意义(P<0.05)。空白组和mi R-NC组48 h吸光值(A)分别为0.75±0.05和0.78±0.06,均高于mi R-455-3p转染组的0.32±0.02,差异具有统计学意义(P<0.05)。空白组和mi R-NC组细胞凋亡率分别为(2.35±0.6)%和(2.46±0.5)...     

维甲酸对软骨细胞中IGFBP-6基因表达的调控

目的 探讨维甲酸对软骨细胞的功能影响及细胞内胰岛素样生长因子结合蛋白6(IGFBP-6)的表达规律.方法胰酶消化法体外培养兔的软骨细胞;软骨细胞株暴露于1×10-6mol/L全反式维甲酸(ATRA)24 h;细胞免疫化学观察软骨细胞中Ⅱ型胶原的分泌变化;流式细胞仪检测软骨细胞株细胞凋亡率;采用逆转录-聚合酶链反应(RT-PCR)半定量分析软骨细胞中IGFBP-6 mRNA的表达.结果 ATRA抑制了软骨细胞中Ⅱ型胶原的分泌;1×10-6mol/L ATRA使体外培养的软骨细胞的细胞凋亡率明显增加,差异有统计学意义(P《0.05);ATRA使软骨细胞中IGFBP-6 mRNA的表达增加了3倍,差异有统计学意义(P《0.05).结论维甲酸负性调节软骨细胞的分泌和增殖功能,而对软骨细胞中IGFBP-6基因表达具有正性调节作用.     

依那普利叶酸片联合松龄血脉康胶囊治疗社区H型高血压的疗效观察

目的:观察依那普利叶酸片联合松龄血脉康胶囊治疗社区H 型高血压的临床疗效.方法:选择在我院及社区就诊的100 例H 型高血压患者,随机均分为依那普利叶酸组(采用依那普利叶酸片治疗)和联合治疗组(在依那普利叶酸组治疗基础上加用松龄血脉康胶囊).治疗1 年后,比较两组疗效及治疗前后血压、血脂、同型半胱氨酸(Hcy)、颈动脉...     

17β雌二醇对人桡动脉舒张作用的体外实验

目的:研究17β雌二醇(17β-estradiol,E2)对人桡动脉(RA)的舒张作用及其机制.方法:采用离体血管灌流的方法,观察E2对人RA的舒张作用以及NO合成酶抑制剂左旋硝基精氨酸甲酯(Nω-nitro-L-arginine methyl ester,L-NAME),8-Br-cGMP和鸟苷酸环化酶抑制剂美蓝(MB)对这一过程的影响.结果:观察到E2(0.1～100 μmol/L)可剂量依赖性地舒张血管且具有内皮依赖性;8-Br-cGMP(0.1～1×103 μmol/L)也可引起剂量依赖性的血管舒张效应.10 μmol/L MB使E2舒张人RA的作用完全消失.10 μmol/L L-NAME能部分抑制E2舒张TA的作用.结论:E2对RA的急性舒张作用具有内皮依赖性.此作用是E2通过非基因组方式使血管内皮细胞分泌NO、进而可能引起血管平滑肌细胞内的cGMP水平升高实现的.     

BLCAP基因cDNA的克隆及siRNA表达载体的构建

目的：克隆BLCAP基因cDNA并构建和鉴定针对于BLCAP基因的siRNA真核表达载体.方法：从培养的人骨肉瘤细胞系SOSP-9607细胞中提取总RNA,经RT-PCR获得BLCAP基因.将该基因克隆到pGEM-T-Easy载体中,酶切及测序鉴定.将合成的siRNA核酸片段退火形成双链后连接到经BamHI和HindⅢ双酶切后的pSilencer4.1真核表达载体,命名为pSilencer4.1-B1以及pSilencer4.1-B2,并进行酶切及测序鉴定.脂质体法转染SOSP-9607细胞系,G418筛选以及RT-PCR验证构建的真核表达载体对目的基因的干涉情况.结果：经酶切及测序鉴定,所获得的目的片段序列BLCAP基因完全相符.重组质粒中含有与理论值相符的插入片段,其测序结果与设计序列一致.经脂质体法转染后pSilencer4.1-B2可明显抑制SOAP-9607细胞的BLCAP表达.结论：成功克隆了BLCAP基因并cDNA构建和验证了其siRNA真核表达载体.     

脑星形细胞瘤中TIP30、VEGF和CD34的表达及其相关性研究

Objective To investigate the expression and relationship of TIP30(HIV-1 Tat interactive protein 2), vascular endothelial growth factor (VEGF) and MVD (detected by CD34) in the angiogenesis of human brain astrocytomas. Methods Expression of TIP30, VEGF and CD34 in 19 cases of normal brain tissue and 71 cases of astrocytoma were immunohistochemically examined with Elivision plus two-step method. Results The positive expression of TIP30 could be seen in cytoplasm of neuroglial cells and neurons of 19 normal brain tissues. The positive expression rate of TIP30 in 71 cases of astrocytoma was 33.80 % (24/ 71). The positive expression rate of TIP30 in astrocytoma of different grades was 52 % for grade Ⅱ, 34.78 % for grade Ⅲ and 13.04 % for grade Ⅳ. The positive expression rate of TIP30 in high grade (Ⅲ+Ⅳ) of astrocytoma was found significantly lower than that in low grade(Ⅱ) (χ2=5.71, P <0.05); The expression of VEGF and MVD detected by CD34 in astrocytomas were higher than that in normal brain tissue and increased as the tumor grade increased; In astrocytoma, the negtive correlation was found between the expression of TIP30 and VEGF (r=-0.428, P<0.05); no correlation was found between TIP30 and MVD(r=-0.065, P 0.05); the positive correlation was found between VEGF and MVD(r=0.684, P<0.01). Conclusion The positive expression rate of TIP30 in normal brain tissue is significantly higher than that in astrocytoma. The positive expression rate of TIP30 significantly decreases as the pathological grade of the astrocytoma increases; The expression of TIP30 and VEGF is negatively correlated in astrocytoma.     

新生儿重症传染性单核细胞增多综合征1例

患儿,男,31天,因"发热10天,伴皮疹肝脾肿大6天"入院.患儿G2P1,足月臀位剖宫产出.入院前10天出现发热咳嗽流涕,在当地医院住院治疗9天.给予"复达欣"等抗感染及"丙种球蛋白"支持治疗,期间体温波动在37.5℃～38.5℃.