海地瓜中重金属及营养素分布规律的研究

目的了解海地瓜重金属污染物的分布规律,寻找重金属污染物去除方法并保障其食用安全,以利于大规模开发海地瓜资源,丰富海参市场。方法依据现行国家标准的检测方法对海地瓜及刺参的体壁(含内脏)、仅体壁和(或)表皮(刺参无表皮)三个部位进行重金属污染物和营养素含量的检测,并对其结果进行单因素秩和检验(Kruskal-Wallis H检验和Wilcoxon检验)分析。结果重金属污染物主要富集在海地瓜的表皮。单因素检验结果显示,海地瓜机体中重金属铅、无机砷、铬的含量:表皮体壁+内脏体壁,差异有统计学意义(T=12.55、16.08、9.90,均P0.05),甲基汞、镉的含量分布较均匀,差异无统计学意义。去除表皮后海地瓜机体的重金属含量,铅、无机砷、甲基汞均有下降,差异有统计学意义(χ~2=12.95、9.14、6.35、7.33,均P0.05),手工去皮与酶解去皮相比二者效果相当,差异无统计学意义。海地瓜基本组成水分含量最高,最少的为粗脂肪;矿物质中,钠、钙、铁、镁元素的含量始终位居前四位,含量最少的为铜元素。单因素检验结果显示,手工去皮后与未去皮相比,除钙元素下降,差异有统计学意义(T=2.17,P0.05),其他营养素均没有下降,差异无统计学意义。结论海地瓜经手工去皮或酶解去皮后,铅、无机砷、甲基汞、镉和铬的重金属含量均小于相关标准的最高限量值,说明去除表皮后海地瓜的重金属限量完全符合国家现行的相关标准,且去皮没有减少海地瓜的营养素。故建议在食用过程中应尽量地除去海地瓜表皮,有关部门在制定海地瓜及其制品的相关食品安全标准时,重金属限量的检测值应考虑去除表皮。     

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.     

急性乳腺炎

方一消乳饮药物组成金银花、蒲公英各20克,连翘、花粉各12克,青皮、桔梗、白芷各10克,穿山甲6克,皂角刺9克,全瓜蒌15克。制剂用法每日1剂,水煎服。若寒热明显者加柴胡12克,黄芩10克;痛不可触者加当归10克、赤、白芍各12克;病久体虚者加党参、黄芪各15克。若无寒热,疼痛不甚或开始即以乳房结块为主症者,可配合推拿疗法:患者仰卧,右乳患病者用右手,左乳患病者用左手,用掌推法。从患乳的期门、乳根穴开始,经过乳周的食窦、天溪、膺窗、屋翳等穴,一直推到肩井穴。连续约10分钟,次数宜保持在200～300次,手法宜柔和均匀,连续不断,每日1次,3～5天为…     

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。     

瓜蒌薤白半夏汤加味治疗支气管哮喘60例

笔者自1998年10月～2003年10月,用瓜蒌薤白半夏汤加味治疗支气管哮喘60例,收到较好效果,现报道如下。1临床资料60例均经内科确诊,符合第1届全国哮喘会议支气管哮喘(修正方案)诊断标准[1]。其中男32例,女28例;年龄最小23岁,最大66岁;病程1～25年。并发肺气肿15例,肺心病7例。2治疗方法方用瓜蒌薤白半夏汤加味。药用全瓜蒌(打碎)、桑白皮各15g,薤白9g,法半夏、陈皮、炙紫菀、款冬花、杏仁、苏子各10g,甘草5g。恶寒加川桂枝10g,生姜5g;痰鸣息涌不得卧加葶苈子、广地龙各15g;便秘加制大黄10g,玄明粉(冲)3g;痰黄粘稠难出加知母10g,鱼腥草15g。每…