鹿瓜多肽注射液辅助治疗颈椎病的疗效及作用机制探究

目的:探讨鹿瓜多肽注射液辅助治疗颈椎病的疗效及作用机制探究。方法:选取2016年1月～2018年1月在医院就诊的颈椎病患者90例,按随机数表法分为对照组及观察组。两组患者均进行常规康复治疗,观察组在此基础上静脉注射鹿瓜多肽注射液,持续治疗10d,测量两组患者治疗前后颈椎活动度、数字疼痛分级(NPRS)评分、颈部残障指数(NDI)评分,并统计两组患者不良反应发生率。结果:观察组治疗后颈椎活动度均高于对照组(P0.05);观察组治疗后NPRS、NDI评分均低于对照组(P0.05);两组患者治疗期间均未出现严重不良反应。结论:鹿瓜多肽注射液辅助治疗颈椎病可提高颈椎活动度。     

鼻咽癌患者TPA与分期的关系

TPA文献报道较多，但作为非特异性肿瘤标志物，对临床判断有一定局限性，本院从2004年起，联合检测TPA，以期能达到更准确的判断肿瘤及其预后，具体资料如下。     

Clearance of beta- amyloid from the CSF by the choroid plexus： implications in drug development for treatment of Alzheimer＇s disease

The formation of insoluble aggregates of beta - amyloid peptide （ A ） within the brain extracellular fluid is a critical event in the etiology of Alzheimer＇s disease （AD）. In theory, an unbalanced A kinetics can be due to its over production, inadequate metabolic cleaning, or an improper balance of import or export of A or related molecules at brain barriers. We investigated the role of the choroid plexus, which forms a barrier between blood and brain cerebrospinal fluid （ CSF）, in regulating A in the CSF. A uptake from CSF was determined as its volume of distribution （ VD ） into isola- ted rat choroid plexus tissue by using [^125I] A 1-40 and along with a extracellular space marker [^14C ] sucrose. The choroid plexus exhibited a definite capacity in sequestering [^125I] A 1-40 from the surrounding CSF. Uptake of [^125I] A by the choroid plexus was saturable, time - and temperature - dependent, and not ttffected by addition of transthyretin or apolipoprotein E3. Studies with cultured monolayers of primary choroid epithelial cells indicated that A permeability across cells, corrected by [ ^14C] sucrose, was greater from the CSF -facing membrane than from the blood -facing membrane. Similarly, cellular accumulation of [ ^125 I ] A was concentrative from both directions and was greater from the CSF -facing membrane. Quantitative real- time RT- PCR, immunodetection and enzyme activity assays further revealed the presence of several key enzymes involved in A production, e. g. , amyloid precursor protein and beta - secretase, and in A metabolism and alternate processing, e. g. , insulin degrading enzyme, endothelin - converting enzyme - 1, neprilysin and alpha - secretase. Overall, these results suggest the choroid plexus selectively cleanses A from the CSF by an undetermined mechanism （s） ; moreover, it has the capacity to degrade A , suggesting a vital role of this tissue in maintaining A homeostasis. The perspectives of drug development for treatment of AD by reducing A from brain extracellular fluid as a new strategy will be discussed.     

SDS—PAGE测定多肽分子量方法的改进

本文采用ＳＤＳ－ＰＡＧＥ尿素系统，对浓缩，电泳和染色条件加以改进，用改进的方法分离多肽标准品，胰岛素，细胞色素Ｃ和促肾上腺皮质激素等样品，结果表明，该法对分子量在２５００－１７０００的多肽能进行良好的分离且重复性好，分离时间短，是一种有效的分离方法。     

组织多肽特异性抗原在原发性肝癌中的临床应用

OBJECTIVE: To evaluate the clinical value of serum tissue polypeptide specific antigen (TPS) for primary hepatic cancer in comparison with alpha-fetoprotein (AFP). METHODS: TPS and AFP were measured by enzyme-linked immunosorbent assay (ELISA) in 85 patients with primary hepatic cancer, 19 with metastatic hepatic cancer, 35 with liver cirrhosis, 22 with chronic hepatitis and 50 healthy control subjects. RESULTS: Serum AFP levels were elevated in patients with hepatocellular carcinoma in comparison with that in cholangiocarcinoma patients (P=0.037), but the difference was not significant (P=0.737). Serum TPS levels were significantly correlated with the tumor size (P=0.001), but not with the number of the tumors, portal invasion, extrahepatic metastasis, clinical stage or histological differentiation (P>0.05). A significant correlation was observed between AFP level and tumor size (P=0.028), portal invasion(P=0.005), and histological differentiation (P=0.000). CONCLUSION: TPS alone offers no more clues than AFP for the diagnosis of primary hepatic cancer, though it can be helpful for the diagnosis of cholangiocarcinoma. It has only limited clinical utility as a marker for primary hepatic cancer.     

HSP70-PC肽复合物与树突状细胞成熟关系的实验研究

目的探讨HSP70-PC肽复合物与人外周血来源的树突状细胞DC成熟之间的关系。方法采用GM—CSF、IL-4刺激培养人外周血单个核细胞，增殖产生大量DCS；从肺癌细胞中获取肽复合物，通过细胞因子检测试剂盒进行检测。结果发现HSP70-PC肽复合物修饰的DDC大量分泌IL-12、TNF-α等细胞因子。结论HSP70-PC肽复合物可诱导DC成熟，体外产生特异性反应。     

中西医结合治疗膝关节骨性关节炎60例

膝关节骨性关节炎是一种退行性病变，也叫膝关节骨关节病、增生性膝关节炎，多发于50岁以上的女性，传统的治疗方法效果不理想。2003-06—2006-06，笔者采用中西医结合疗法治疗该病60例，近期疗效满意，总结报道如下。     

人源性多肽pCM-19抗菌机制的初步研究

目的：初步分析人源性多肽pCM-19的抗菌作用机制。方法：利用荧光素掺入破损细胞膜的原理，采用流式荧光激活细胞分析（FACScan）和扫描电子显微镜分析pCM-19对靶菌膜的作用机制。结果：FACS分析法结果显示pCM-19处理后的大肠杆菌PI着染细菌比例明显高于未处理组，并且随作用时间的延长，PI着染BL-21菌比例增大，20min时达最高水平，20min以后反而降低；扫描电子显微镜观察到pCM-19处理后的大肠杆菌有明显的表面形态学的改变，如细菌体积缩小、细菌表面出现皱缩、凹陷似有孔洞形成。结论：人源性多肽pCM-19可能作用于细菌细胞壁和（或）细胞膜，通过改变其通透性而发挥杀菌作用。     

用升麻属植物提取物或活性部位降低细胞中β-淀粉样多肽水平

以己烷提取升麻，得到己烷可溶部位和不溶部位。此不溶部位可降低细胞中β-淀粉样多肽的水平或分泌。