Proteasome Inhibitors Sensitize Hepatocellular Carcinoma Cells to TRAIL

A poptosis, an evolutionarily conserved form of cell suicide, oc- curs in two physiological stages: commitment and execution.[1] It has been found that several Bcl-2 family proteins are located in the outer mitochondrial membrane, where they control relea…     

王焕禄老中医治疗哮喘发作期的用药经验

王焕禄老中医在长期的临床实践中，总结出治疗哮喘病的一些用药体会，兹介绍如下，以飨读者。     

Triptolide inhibits T cell activation and proliferation via multiple pathways

Triptolide is potent immunosuppressive has been reported to inhibit autoimmunity, compound isolated from Chinese herbal medicine. Triptolide allograft attributed to the suppression of T cells via NF - kB rejection and GVHD, and its efficacy was previously pathway and apoptosis. In the present study, we detailedly analyzed Triptolide＇ s function on murine primary T cell. We found that Triptolide could inhibit T cell activation and proliferation by dramatically down - regulating cell division and cell cycle. Triptolide inhibited T cell activation in a dose- dependent manner, and the inhibition was mediated by both NF- kB pathway and AP - 1 pathway.     

多巴胺转运体440bp等位基因与儿童孤独症的关系

目的探讨儿童孤独症(CA)与多巴胺转运体(DAT1)440bp等位基因的关系。 方法陕西省纺织医院等于2004年3~8月，采用PCR技术对来自西安市两所康复中心的汉族CA儿童与DAT1基因多态性进行遗传关联分析。 结果(1)DAT1基因多态性中共观察到5种等位基因(320bp，360bp，440bp，480bp，520bp)，6种基因型(480/480，480/320，520/480，480/360，480/440,440/440)。(2)使用相对危险度RR对CA与DAT1基因多态性的等位基因和基因型进行关联分析，显示480/440基因型和等位基因440与CA呈正关联，相对危险度分别为265和230，480/480基因型和等位基因480与CA呈负关联，相对危险度分别为064和077。但统计结果没有发现具有统计意义的差异。 结论中国汉族CA儿童与DAT1440bp等位基因无遗传关联。也许等位基因440bp与基因型480bp/440bp这两个因素是发病的风险因素,还有待今后的进一步研究。     

深圳市青少年心理叛逆的相关因素探讨

目的 了解深圳市青少年心理叛逆的表现并探讨其影响因素，为预防心理叛逆提供相关理论依据。方法 2005年3月至5月，采用分层整群随机抽样方法，选取19所深圳市大、中学校学生4000名，进行青少年心理叛逆的相关表现及行为调查。结果作为心理叛逆的表现之一，20．8％的深圳市青少年近一年有过离家出走的想法，5．8％的人曾经尝试过离家出走，其中男生尝试离家出走率为7．4％，女生为4．3％。初中／高中学生离家出走想法的发生率高于大学生（x^2=51．1，P=0．000），但不同学校类型问尝试离家出走的差别无统计学意义（x^2=1．9，P=0．392）。在过去12个月中孤独感、在过去12个月中失眠的次数、在过去12个月中是否连续两周感到伤心或绝望、网络成瘾、在过去1个月中平均每天的吸烟量、在过去1个月中平均每天的饮酒量是尝试离家出走的危险因素，而女生、学习成绩好是其保护因素。结论 深圳市大、中学生心理叛逆较普遍，他们中离家出走想法和尝试离家出走的发生率较高，常与社会心理因素有关，消除危险因素，加强健康教育可最大限度预防青少年的心理叛逆。     

肺炎衣原体抗体效价与多发性硬化的相关性探讨

目的 探讨肺炎衣原体（Chlamydia pneumoniae）感染在多发性硬化（MS）发病和进展中的作用和致病机制。方法 选取急性期MS患者31例，缓解期MS患者28例及其他神经系统疾病患者30例，健康对照者30名，应用酶联免疫吸附试验测定患者和对照者血清及脑脊液中肺炎衣原体IgG和IgM抗体水平。结果 急性期MS组、缓解期MS组、其他神经系统疾病组和健康对照组的肺炎衣原体血清IgG分别为48．4％、35．7％、30．0％、23．3％；4组IgM抗体效价分别为12．9％、14．3％、20．0％、10．0％，总体比较差异无统计学意义（P〉0．05）；急性期MS组与其他神经系统疾病组的脑脊液IgG和IgM抗体效价分别为0、6．7％和0、0，差异无统计学意义（P〉0．05）。结论 肺炎衣原体的感染或重复感染与MS发病相关不紧密，可能仅为MS的伴随感染。     

胰岛素强化治疗对严重创伤患者炎性反应及预后的影响

Objective To investigate the effects of intensive insulin therapy on inflammatory re-sponse and prognosis of patients with severe trauma. Methods Eighty severely injured patients were di-vided into intensive insulin therapy group (n = 40, IT) and routine therapy group (n = 40, RT) in random pair. At the time of admission, a continuous infusion of insulin (2 -4 U/h) was pumped into the patients of IT group to maintain blood glucose level at 6 -8 mmol/L. Patients in RT group were given routine treatment without administration of insulin. Fever, organ injury, and mortality of patients in 2 groups were recorded. Venous blood was drawn from patients of 2 groups on the morning of post treatment day (PTD) 1, 3, 5, and 7. Values of TNF-α, C-reactive protein (CRP), IL-2, and IL-10 in plasma were assayed. Results High fever appeared in 9 patients in IT group, and WBC exceeded 10.0×109 for more than 3 days in 17 patients in this group, versus 20 and 29 patients respectively in RT group. Dysfunction of 1 organ appeared in 31 pa-tients in IT group and 30 patients in RT group. Dysfunction of 3 organs appeared in 10 patients in IT group and 19 patients in RT group. Dysfunction of 4 organs appeared in 7 patients in IT group and 12 patients in RT group. In IT group, 4 patients died within 3 post-injury day (PID), and 1 patient died after PID 3 (total case fatality: 12.5% ). In RT group, 5 patients died within 3 PID, and 4 patient died after PID 3 (total case fatality: 22.5%). Plasma levels of TNF-α and CRP of patients in IT group were significantly lower than those of patients in RT group on PID 3 - 7 ( P<0.05 or P<0.01 ), while levels of IL-2 and IL-10 of patients in IT group were significantly higher than those of patients in RT group ( P<0.05 or P<0.01 ). Plasma levels of TNF-α ( 1.3±0.6 μg/L) and CRP (55±16 mg/L) of patients in IT group on PTD 7 were lowered to the trough level, and they were significantly lower than those of patients in RT group (3.0±0.8μg/L, 89±20 mg/L, respectively, P <0.01 ). Conclusions Intensive insulin therapy can mitigate systemic inflammatory response and improve prognosis of patients with severe trauma.     

98例尿道下裂手术的体会

目的通过对尿道下裂手术的改进,进一步完善尿道下裂手术的技巧和护理。方法A组50例尿道下裂Ⅰ期成形术中,采用皮下连续内翻缝合形成新尿道,且固定于阴茎海绵体,由阴茎根部自下而上多层次,多点缝合皮瓣皮下组织至阴茎海绵体上,均无间隙和死腔。B组48例采用常规手术方式作对照。结果A组50例尿道下裂Ⅰ期成形术成功44例,B组48例成功17例,A组与B组相比成功率显著提高(P＜0．05)。结论尿道下裂Ⅰ期成形术成功率关键在于术者对术式掌握的熟练程度和术中及术后对每个细节的认真处理。     

深静脉血栓形成患者凝血因子ⅩⅢ Val34Leu基因多态性检测

目的:探讨凝血因子ⅩⅢ(FⅩⅢ)Val34Leu基因多态性与中国人群深静脉血栓形成(DVT)发病的相关性.方法:利用聚合酶链反应和限制性片段长度多态性(PCR-RFLP)方法,检测了103例DVT患者与106例正常对照的FⅩⅢVal34Leu基因多态,并加以对照分析.结果:103例DVT患者FⅩⅢVa134Leu基因型均为野生型V/V,未见突变类型;106例对照组中发现1例突变杂合子V/L.2组基因型频率、等位基因频率相互比较,差异均无统计学意义(P＞0.05).结论:FⅩⅢVal34Leu对中国人群DVT有保护作用的可能性极小.