白细胞介素13抑制肾小球系膜细胞增殖及白细胞介素6表达

目的:探讨白细胞介素13(IL-13)对体外培养的大鼠系膜细胞的增殖及其产生白细胞介素6(IL-6)的影响。方法:用四甲基偶氮唑(MTT)法测定系膜细胞增殖,用逆转录聚合酶链反应(RT-PCR)及酶联免疫吸附法(ELISA)测定系膜细胞IL-6mRNA表达及其蛋白水平。结果:IL-13在1、10、100μg/L浓度范围呈剂量依赖性地抑制系膜细胞的增殖;5%FCSRPMI1640培养条件下系膜细胞IL-6mRNA表达及IL-6分泌水平较低,脂多糖(LPS)可刺激系膜细胞IL-6mRNA的表达及提高IL-6分泌水平,而IL-13可抑制LPS诱导的系膜细胞IL-6分泌及其mRNA表达。结论:IL-13抑制体外培养的系膜细胞增殖及LPS诱导的系膜细胞IL-6的产生,IL-13可能对于肾小球肾炎的系膜细胞炎症反应具有拮抗作用。     

IL-13对大鼠急性肾缺血再灌注时IL-1β表达的影响

目的:观察IL-13对急性肾缺血再灌注时IL-1β表达的影响。方法:Wistar雄性大鼠57只,随机分为8组:正常组(normal);假手术组(sham);缺血组:(I)缺血再灌注组(I/R);治疗对照组-1(C-1);治疗对照组-2(C-2);治疗组-1(T-1)和治疗组-2(T-2)。阻断大鼠双侧肾脏血流45min再灌注24h建立急性肾缺血再灌注模型;治疗组分别于阻断血流前、后分别从双侧肾动脉开口注射入1.5μg/50gbw鼠重组白细胞介素13(rmIL-13);检测各组大鼠IL-1β血清水平和肾脏表达,以及肾功能和肾脏病理。结果:(1)治疗组肾脏IL-1β基因(TtoC:P＜0.01)和蛋白表达(T-1toC-1:P＜0.01;T-2toC-2:P＜0.05)明显减少,血清IL-1β水平明显下降;(2)肾功能障碍和肾组织病理变化明显减轻,肾小管损害评分减少(C-1toT-1:45.20±8.64to21.05±8.82,P＜0.01;C-2toT-2:42.25±11.15to23.25±7.31,P＜0.01);(3)血清IL-1β水平与BUN、Cr成正相关(r=0.708,P＜0.01;r=0.770,P＜0.01)。结论:IL-13能有效地抑制大鼠急性肾缺血再灌注损伤IL-1β的表达。     

亚低温治疗58例外伤性脑梗塞的临床疗效观察

目的：探讨亚低温疗法在外伤性脑梗塞疾病治疗中的效果以及临床应用价值。方法：临床研究时随机选取本院收治的58例外伤性脑梗塞患者，分别采用亚低温疗法及常规疗法，对比分析两组患者的临床疗效。结果：治疗后试验组患者神经功能缺损度评价明显低于对照组；实验组患者基本治愈者11例，总有效率89．66％；而对照组患者基本治愈者9例，总有效率65．51％。结论：通过临床实践研究证实，亚低温疗法对于外伤性脑梗塞疾病具有良好的治疗效果，可有效恢复患者的神经功能，降低并发症的发生率，尤其是适用于大面积脑梗塞疾病临床治疗。     

胃癌患者血清肝细胞生长因子的检测及意义

Objective To explore the clinical significance of serum HGF level changes in gastric cancer pa-tients. Methods 60 cases of patients who operatied and clinicopathological confirmed gastric cancer, were detected serum HGF level by enzyme linked immunosorbent assay(ELISA) .40 cases were administered radical gastrectomy,20 cases of patients who had distant metastasis and loss operative chance were detected 7 days and 3 months preopera-tive,postoperative serum HGF level respectively. At the same time 40 cases of chronic gastritis patients and 40 cases of healthy examination people were selected as control group. Results Serum HGF level in patients with gastric canc-er was significantly higher than that of chronic gastritis and normal controls(P <0. 01). The serum HGF level of pa-tients with tumor vascular invasion significantly increased(P <0. 05). The patients with lymph node metastasis,serum HGF level was significantly higher than that patients with no lymph node metastasis(P <0. 05). The serum HGF level of patients with liver metastasis was significantly higher than that patients with no liver metastasis(P <0. 05). The se-rum HGF level of gastric cancer patients whose maximum diameter of the tumor ≥3cm were significantly higher than that maximum diameter of the tumor <3cm(P<0. 05). According to TNM staging of gastric cancer,the serum HGF level of Ⅰ phase and Ⅱ phase patients were significantly lower than that Ⅲ phase and Ⅳ phase patients(P <0.05).The serum HGF level of gastric cancer patients had no significant correlation with sex ,age and histological type(P <0.05). The serum HGF level of 40 cases of patients who were 1 week after surgery were significantly decreased,the patients who were 3 months after surgery were more obvious(P <0. 05 and P <0. 001). Conclusion HGF may play an important role in gastric cancer occurrence and development. The detection of serum HGF level can become an im-portant index for monitoring the degree of gastric cancer and prognosis of patients.     

真菌性鼻窦炎的CT诊断

近年来,随着CT的普及应用和鼻内窥镜技术的开展,临床上确诊的鼻窦真菌感染日趋增多,我院在2002年4月至2006年12月共收治了经手术证实的真菌性鼻窦炎患者23例,术前均行鼻窦CT检查,现将其CT表现作一回顾性分析,旨在提高对本病的认识和诊断水平。1资料与方法1.123例患者中,男10例,女13例;年龄21~65岁,平均36岁。全部病例均经手术和病理证实。主要临床表现:经常流脓涕、涕中带血或回吸性血涕12例,鼻塞、间隙性擤出或吸出豆渣样碎屑4例,头痛面颊部痛或胀感10例。体检见鼻腔脓血性分泌物10例,中鼻甲黏膜浅表糜烂9例,鼻息肉5例,鼻中隔偏曲6例。1…     

脉冲场凝胶电泳在沙门菌食物中毒溯源中的应用研究

目的用脉冲场凝胶电泳（PFGE）方法,追踪某次沙门菌食物中毒的来源,确定中毒食品,快速控制传染源。方法对食物中毒中分离的肠炎沙门菌用XbaI酶切总DNA,用脉冲场凝胶电泳（PFGE）法进行分子分型,用BioNumerics软件对PFGE分型图谱进行电子化数据分析,绘出聚类分析图。结果脉冲场凝胶电泳（PFGE）分型方法对患者样本分离的242株肠炎沙门菌进行分子分型,型别基本一致,表明是同一批食物中毒;从三文治等蛋糕制品中分离的9株菌株与患者分离株图谱完全一致,表明此次食物中毒的源头为某蛋糕厂生产的三文治等食品。结论脉冲场凝胶电泳技术适用于菌株的同源性的分析和传染源的追踪。     

胃癌患者血清肝细胞生长因子的检测及意义

Objective To explore the clinical significance of serum HGF level changes in gastric cancer pa-tients. Methods 60 cases of patients who operatied and clinicopathological confirmed gastric cancer, were detected serum HGF level by enzyme linked immunosorbent assay(ELISA) .40 cases were administered radical gastrectomy,20 cases of patients who had distant metastasis and loss operative chance were detected 7 days and 3 months preopera-tive,postoperative serum HGF level respectively. At the same time 40 cases of chronic gastritis patients and 40 cases of healthy examination people were selected as control group. Results Serum HGF level in patients with gastric canc-er was significantly higher than that of chronic gastritis and normal controls(P <0. 01). The serum HGF level of pa-tients with tumor vascular invasion significantly increased(P <0. 05). The patients with lymph node metastasis,serum HGF level was significantly higher than that patients with no lymph node metastasis(P <0. 05). The serum HGF level of patients with liver metastasis was significantly higher than that patients with no liver metastasis(P <0. 05). The se-rum HGF level of gastric cancer patients whose maximum diameter of the tumor ≥3cm were significantly higher than that maximum diameter of the tumor <3cm(P<0. 05). According to TNM staging of gastric cancer,the serum HGF level of Ⅰ phase and Ⅱ phase patients were significantly lower than that Ⅲ phase and Ⅳ phase patients(P <0.05).The serum HGF level of gastric cancer patients had no significant correlation with sex ,age and histological type(P <0.05). The serum HGF level of 40 cases of patients who were 1 week after surgery were significantly decreased,the patients who were 3 months after surgery were more obvious(P <0. 05 and P <0. 001). Conclusion HGF may play an important role in gastric cancer occurrence and development. The detection of serum HGF level can become an im-portant index for monitoring the degree of gastric cancer and prognosis of patients.     

原发性肝癌患者外周血Th1／Th2细胞因子检测的临床意义

目的：检测原发性肝癌患者外周血CD3^ T细胞分泌细胞因子的水平变化，分析Th1和Th2细胞的细胞因子免疫活动，为肿瘤的免疫治疗提供实验依据。方法：对62例原发性肝癌患者首先用刺激物刺激外周血T细胞，增加细胞内细胞因子的表达，然后加入荧光标记的特异性抗细胞因子单克隆抗体，特异性抗原抗体结合．最后应用流式细胞仪分析特异性细胞因子表达水平。同时用酶联免疫吸附试验(ELISA)检测相应的细胞因子。结果：Th1型细胞因子干扰素-γ、白细胞介素-2、白细胞介素-12表达水平较30例正常对照组显著降低，Th2型细胞因子白细胞介素-4和白细胞介素-10表达水平较正常对照组升高，差异有统计学意义。肿瘤坏死因子-α(TNF-α)表达水平较正常对照组升高，差异有显著性。结论：原发性肝癌患者Th1型反应模式处于弱势状态，相对地Th2型反应模式处于优势状态，Th1／Th2平衡失调，Th1／Th2平衡向Th2方向漂移。原发性肝癌患者体内Th2型细胞因子模式占优势状态，这可能是肿瘤细胞发生免疫逃逸的原因之一。     

编辑思想的价值取向

世界文明史上一切优良的编辑传统，都是构建当代编辑思想的基础。编辑出版业作为文化建设和精神文明建设的重要阵地，广泛而持久地影响着人们的理想信念、思想境界、文化传承和知识积累。在科学发展、文化创新的21世纪，建立现代编辑思想既是时代发展的要求，也是编辑实现自我更新、传播先进文化、承载人类文明的历史重任。纵观我国编辑出版史，编辑思想的价值取向主要表现为“注重编辑活动内容和形式的创新”、“不以名家而以质量定稿件取舍标准”、“制定并坚守出版理念”以及“热情真挚的读者服务精神”。     

甲状旁腺机能减退的头颅CT诊断价值

目的:总结甲状旁腺机能低下的脑内改变,探讨CT检查对甲状旁腺机能减退症的诊断价值。方法:分析38例经临床证实的甲状旁腺机能减退症的颅内钙化灶的特点。结果:颅脑CT可以清晰显示颅内钙化灶的大小、范围、形状等,多发性、对称性和多形性为其分布特点,钙化灶的数目、大小与病程成正相关。结论:颅脑CT检查是甲状旁腺机能减退症的主要影像学检出手段,可为临床诊断提供可靠的客观依据。