N- cadherin, E- cadherin and β- catenin expressions in human brainstem gliomas

Objective To explore the expression and significance of N - cadherin, E - cadherin and β - catenin in human brainstem gliomas. Methods N - cadherin, E - cadherin and β - catenin proteins and mRNA were detected in 38 cases of brainstem gliomas using immunohistochemistry and RT - PCR Methods. Results There was no significant difference in the expression of N - cadherin between grades Ⅰ ～ Ⅱ and grade Ⅲ ～ Ⅳ ( P ＞ 0. 05) . The expression of N - cadherin mRNA in human brainstem gliomas of grade Ⅰ ～ Ⅱ was significantly lower than that in grade Ⅲ～ Ⅳ ( t = 2. 711, P ＜ 0. 05 ). There was no significant difference in the expression of E - cadherin and E - cadherin mRNA between grade Ⅰ ～ Ⅱ and grade Ⅲ～ Ⅳ ( P ＞ 0. 05 ). The expression of β - catenin in human brainstem gliomas of grade Ⅰ ～ Ⅱ was significantly lower than that in grade Ⅲ ～ Ⅳ ( P ＜ 0. 05 ). As regard to β -catenin mRNA, there was no significant difference between grade Ⅰ ～ Ⅱ and grade Ⅲ ～ Ⅳ ( P ＞ 0. 05 ). Conclusions The over -expressionof N - cadherin and β - catenin may play an important role in the invasion and malignant progression of human brainstem gliomas.     

我院高危药品用药安全管理实践

目的探讨我院高危药品的使用管理方法,以提升药物安全管理水平,保障患者用药安全。方法通过查阅文献,结合我院实际用药情况,拟定高危药品使用管理目录,制定我院高危药品的使用管理措施。结果通过规范化管理和使用,有效降低了高危药品的使用风险。结论高危药品目录和管理措施应逐步完善,有助于提高医院药物使用的安全性,降低患者用药风险。     

脑卒中120例康复运动护理

脑卒中发病急,病情重,卧床时间长,致残率较高。其中以半身不遂为主要特征。正确的卧位姿势,相应的护理措施及早期被动与主动运动能防止肌腱挛缩、垂足、关节畸形,改善患肢血液循环,增加脑循环血量,促进脑功能及肢体功能的恢复。2008年10月～2010年     

阑尾炎切口感染的相关因素分析及对策

目的探讨分析临床急性阑尾炎切口感染的相关因素,为临床寻找有效预防阑尾炎切口感染的措施.方法选2011年1月-2012年6月在我科住院的急性阑尾炎患者并行手术治疗的患者,共150例.发生切口感染者为A组,未发生切口感染者为B组.结果150例患者中发生切口感染者22例,感染率为14.67%.结论急性阑尾炎切口感染的相关因素主要与病理分型、是否行术中切口保护、切口大小、是否术前使用抗生素有关.     

N- cadherin, E- cadherin and β- catenin expressions in human brainstem gliomas

Objective To explore the expression and significance of N - cadherin, E - cadherin and β - catenin in human brainstem gliomas. Methods N - cadherin, E - cadherin and β - catenin proteins and mRNA were detected in 38 cases of brainstem gliomas using immunohistochemistry and RT - PCR Methods. Results There was no significant difference in the expression of N - cadherin between grades Ⅰ ～ Ⅱ and grade Ⅲ ～ Ⅳ ( P ＞ 0. 05) . The expression of N - cadherin mRNA in human brainstem gliomas of grade Ⅰ ～ Ⅱ was significantly lower than that in grade Ⅲ～ Ⅳ ( t = 2. 711, P ＜ 0. 05 ). There was no significant difference in the expression of E - cadherin and E - cadherin mRNA between grade Ⅰ ～ Ⅱ and grade Ⅲ～ Ⅳ ( P ＞ 0. 05 ). The expression of β - catenin in human brainstem gliomas of grade Ⅰ ～ Ⅱ was significantly lower than that in grade Ⅲ ～ Ⅳ ( P ＜ 0. 05 ). As regard to β -catenin mRNA, there was no significant difference between grade Ⅰ ～ Ⅱ and grade Ⅲ ～ Ⅳ ( P ＞ 0. 05 ). Conclusions The over -expressionof N - cadherin and β - catenin may play an important role in the invasion and malignant progression of human brainstem gliomas.     

28例重症肝炎患者的护理探讨

<正>重症肝炎,主要指急性重型肝炎、亚急性重型肝炎和慢性重型肝炎。这三型肝炎患者,虽然发病过程不同,但都有肝实质的损害、肝细胞大量坏死、肝功能代偿不全甚至衰竭,造成机体各方面代谢紊乱,出现一系列严重的临床症状。由于目     

人脑干胶质瘤N-cadherin、E-cadherin及β-catenin的表达及其意义

目的 探讨神经-钙粘素(N-cadherin)、上皮-钙粘素(E-cadherin)及相关因子β-连环蛋白(β-catenin)在高、低级别人脑干胶质瘤中的表达及其意义.方法 采用免疫组化方法和RT-PCR法检测不同级别脑干胶质瘤N-cadherin、E-cadherin及β-catenin的表达.结果 N-cadherin蛋白在高、低级别脑干胶质瘤中表达差异无统计学意义(P＞0.05),mRNA的表达在脑干胶质瘤中随着肿瘤级别的升高而增高,高、低级别间差异有统计学意义(t=2.711,P＜0.05);E-cadherin蛋白和mRNA在高、低级别脑干胶质瘤中均表达缺失或减少,组间差异无统计学意义(P＞0.05);β-catenin蛋白的表达在脑干胶质瘤中随着肿瘤级别的升高而增高,高、低级别间差异有统计学意义(P＜0.05),mRNA的表达在脑干各级别胶质瘤中差异无统计学意义(P＞0.05).结论 N-cadherin转录水平的过度表达及β-catenin蛋白水平的过度表达可能与人脑干胶质瘤的恶性进展有关,而E-cadherin转录和蛋白水平的表达下调可能与此无关.

Abstract：

Objective To explore the expression and significance of N - cadherin, E - cadherin and β - catenin in human brainstem gliomas. Methods N - cadherin, E - cadherin and β - catenin proteins and mRNA were detected in 38 cases of brainstem gliomas using immunohistochemistry and RT - PCR Methods. Results There was no significant difference in the expression of N - cadherin between grades Ⅰ ～ Ⅱ and grade Ⅲ ～ Ⅳ ( P ＞ 0. 05) . The expression of N - cadherin mRNA in human brainstem gliomas of grade Ⅰ ～ Ⅱ was significantly lower than that in grade Ⅲ～ Ⅳ ( t = 2. 711, P ＜ 0. 05 ). There was no significant difference in the expression of E - cadherin and E - cadherin mRNA between grade Ⅰ ～ Ⅱ and grade Ⅲ～ Ⅳ ( P ＞ 0. 05 ). The expression of β - catenin in human brainstem gliomas of grade Ⅰ ～ Ⅱ was significantly lower than that in grade Ⅲ ～ Ⅳ ( P ＜ 0. 05 ). As regard to β -catenin mRNA, there was no significant difference between grade Ⅰ ～ Ⅱ and grade Ⅲ ～ Ⅳ ( P ＞ 0. 05 ). Conclusions The over -expressionof N - cadherin and β - catenin may play an important role in the invasion and malignant progression of human brainstem gliomas.     

人脑干和幕上胶质瘤N-cadherin和β-catenin mRNA的表达

目的探讨N-cadherin和相关因子β-catenin mRNA在人脑干和幕上胶质瘤中的表达。方法采用RT-PCR法检测N-cadherin和β-catenin mRNA在18例脑干胶质瘤和18例幕上胶质瘤中的表达。结果N-cadherin mRNA在脑干和幕上胶质瘤中的表达无显著性差异(P＞0.05),β-catenin mRNA在脑干胶质瘤中的表达高于幕上胶质瘤（t=2.255,P<0.05）;N-cadherin mRNA在脑干胶质瘤中随着肿瘤级别的升高而增高(t=2.711,P<0.05),在幕上胶质瘤各级别表达无显著性差异。β-catenin mRNA在不同级别脑干和幕上胶质瘤中的表达均无显著性差异(P>0.05);N-cadherin和β-catenin mRNA在脑干和幕上胶质瘤中的表达均呈正相关（r=0.480,r=0.809,均P<0.05）。结论N-cadherin和β-catenin的过度表达在人脑干胶质瘤的侵袭及恶性进展中起着重要作用。     

HPLC法测定大山楂丸中熊果酸的含量

改进大山楂丸中熊果酸的含量测定方法.采用高效液相色谱法kromasil C18色谱柱,流动相乙腈-水-磷酸(85∶14.95∶0.05);柱温25℃;流速1.0mL·min-1;检测波长210nm.熊果酸进样量在1～6μg范围内与峰面积成良好的线性关系,r=0.9999,平均回收率为99.4%,RSD=0.62%.该方法精密度好,结果准确可靠.     

幼年和成年大鼠C6脑干胶质瘤侵袭性差异的比较

目的探讨幼年和成年Wistar大鼠脑干胶质瘤侵袭性的差异。方法 50只幼年和成年Wistar大鼠随机分4组,A组（n=15）和C组（n=15）分别将大鼠C6胶质瘤细胞注射到幼鼠和成鼠脑桥,B组（n=10）和D组（n=10）大鼠分别注射等体积生理盐水到幼鼠和成鼠脑桥。2周后MRI观察肿瘤生长情况并测量体积,常规行苏木精-伊红染色观察肿瘤组织形态学变化,免疫组织化学染色检测细胞侵袭相关因子基质金属蛋白酶2（MMP-2）、基质金属蛋白酶9（MMP-9）和β-catenin的表达。记录4组大鼠生存时间。结果 MRI检查结果：A、C组在脑桥均发现肿瘤,肿瘤平均体积分别为（49.63±8.34）mm3和（52.07±7.77）mm3,两者无统计学差异（P〉0.05）;B、D组无肿瘤生长。A、C组大鼠平均生存时间分别为（19.47±2.23）d和（21.47±2.23）d,统计学比较有显著性差异（P〈0.05）;B、D组大鼠至另2组大鼠全部死亡时仍存活。A、C组肿瘤形态观察及MMP-2、MMP-9、β-catenin的表达无明显差异（均P〉0.05）。结论成功建立幼年和成年大鼠脑干胶质瘤动物模型,但二者肿瘤侵袭性无明显差异。