病毒性肝炎患者全血及血清中Bcl-2蛋白的检测及其临床意义

为研究Ｂｃｌ 2蛋白在急慢性肝病患者全血中存在情况及其临床意义 ,以及判断是否在血清中存在Ｂｃｌ 2蛋白 ,特立此题。1　材料和方法1.1　研究对象及诊断标准　 46例患者均为 30 2医院 1998年 4月至 1998年 8月住院病人 ,男 37例 ,女 9例 ,年龄 17岁～ 6 7岁 ,平均 38.1岁。急性肝炎 4例 ,慢性肝炎轻度 8例 ,中度 4例 (慢性肝炎均经病理证实 ) ,肝炎肝硬变 2 0例 ,慢性重型肝炎 10例。临床及病理诊断均按照 1995年 5月北京第 5次全国传染病与寄生虫病学术会议修订的诊断标准。肝穿活检前后 2天空腹抽血。1.2　Ｂｃｌ 2蛋白含量检测　按照Ｂ…     

乙肝患者血清甲状腺素和类风湿因子联合检测的临床应用

甲状腺素与病毒性肝炎的关系已被临床广泛应用，类风湿因子为一种自身抗体．可作为类风湿患者的一项辅助诊断指标已被人们所熟知，而有关乙肝患者血清甲状腺素和类风湿因子联合检测的报道不多。本文报告乙肝患者两项联合检测的结果并就临床意义作初步讨论，现报告如下。     

血清TBA、ADA、CHE及PA检测诊断肝病的价值

本文通过对血清总胆汁酸(TBA)、腺苷脱氨酶(ADA)、胆碱酯酶(CHE)及前白蛋白(PA)这四项指标进行联检,以探讨其在肝病诊断中的价值,现将结果报告如下。1资料和方法1.1一般资料选择2010年1月～2011年5月就诊于我院的门诊及住院肝病患者共235例(男125,女110),各型肝病经临床确诊,且符合全国病毒性肝炎及肝病学术会议制定     

血清铁蛋白高值对急性炎症感染性疾病的辅助诊断临床应用探讨

血清铁蛋白(ferritin)和C反应蛋白(CRP)、铜蓝蛋白(CP)、纤维蛋白(Fb)等,同属急性时相蛋白[1].当机体处于炎症、感染、组织损伤、肿瘤等情况时,铁蛋白可显著上升[2].     

HIV-1高暴露持续血清阴性者对Nef、Gag肽段库的特异性CTL应答的研究

目的 研究中国HIV-1高暴露持续血清阴性（highly exposed persistently seronegative,HEPS）者的Nef、Gag特异性细胞毒性T淋巴细胞（cytotoxic T lymphocyte,CTL）应答特点,探讨HIV-1特异性CTL应答在这类特殊人群中抵抗感染的作用机制.方法 选取10例HIV-1高暴露持续血清阴性者,11例经性接触感染且从未接受抗病毒治疗的HIV/AIDS患者及4例未经暴露的健康志愿者.以覆盖HIV-1 gag全长和部分nef的14个肽段库为刺激原,应用IFN-γ ELISPOT法测定3组人群的特异性CTL应答,并对3组的应答强度、宽度以及对肽段库识别比例进行比较.结果 50%（5/10）的HEPS,100%（11/11）的HIV/AIDS患者均存在Nef及Gag特异性CTL应答,而4例健康对照均为阴性.存在应答的HEPS者对14个肽段库的平均应答强度和宽度分别是HIV/AIDS患者的4.3%和37.7%.在HEPS者中主要识别的肽段库均为HIV/AIDS患者中识别比例相对较低的肽段库.结论 与HIV/AIDS患者相比,HEPS者中的HIV-1特异性CTL应答存在着不同的特点和规律,可能在保护机体免于HIV-1感染中发挥着重要作用.     

抗杜氏利什曼原虫犬分离株单克隆抗体的研制及用于病犬血清循环抗原的检测

本文报道用杜氏利什曼原虫大分离株前鞭毛体膜抗原免疫BALB/c小鼠的脾细胞与Sp2/0瘤细胞融合,得到多株分泌抗体较高且稳定的细胞株。进一步筛选出McAb C11-G10-A4可用于检测病犬血清循环抗原。用McAb-AST检测采自甘肃省黑热病流行区的30份犬血清,阳性率30％。与骨髓涂片查病原体的总符合率为86.7％,阳性符合率达100％。69份非流行区对照大血清检测结果,仅1份出现阳性反应,可见本试验的敏感性较高,特异性较强(98.55％)。     

黄疸婴儿血清TORCH及COV感染的血清学检测

人类巨细胞病毒（HCMV）在人群中感染率较高，是先天性感染中最常见的致畸、致残病毒之一，据文献报告，妊娠期原发CMV感染率为0．70％～4％，其胎儿新生儿感染率为30％～40％.本文对我院新生儿科291例高胆红素血症患儿行TORCH及COV—IgM（柯萨奇病毒-IgM）进行了检测，以了解其感染情况。     

Examination of the immunological relationship between measles virus and canine distemper virus using monospecific measles antisera

Indirect immunofluorescence titrations were performed with measles virus, the Rockborn strain of canine distemper virus (CDV), and a large plaque variant of the Onderstepoort strain of CDV (Ond-LP) using monospecific antisera prepared against either the haemagglutinin (anti-HA), the haemolysin (anti-HL), or the ribonucleoprotein (anti-RNP) of measles virus. Tests with anti-HA showed that the Rockborn strain of CDV was more closely related to measles virus than Ond-LP. The ribonucleoprotein antigens of the CDV strains were closely related to each other but were both related to and distinct from measles virus RNP. The use of measles anti-HL serum demonstrated that CDV possesses an antigenically related acetone-sensitive component equivalent to the haemolysin of measles virus. Absorption of human convalescent serum with excess quantities of acetone-fixed CDV antigens had no effect on measles-specific anti-HA, HL, or RNP activity in the serum. Absorption with measles antigens on the other hand, totally removed all measles and CDV-specific HA and RNP activity. CDV was not neutralised by any of the monospecific antisera when tested either as individual antisera or as mixtures. Our results demonstrate the occurrence of antigenic variation between different strains of CDV, they also reveal unique antigenic determinants in both measles virus and CDV.     

高效液相色谱法测定血清碘海醇浓度方法的建立和应用

目的 建立利用高效液相色谱法(HPLC)测定血清碘海醇浓度的方法,为碘海醇血浆清除率临床应用及推广提供方法学支持.方法 设定色谱条件,对HPLC测定血清碘海醇浓度的方法进行方法学验证.对33例慢性肾脏病(CKD)儿童同时进行碘海醇清除率与99mTc-DTPA血浆清除率测定,并采用最新Schwartz公式估算肾小球滤过率(eGFR).以99mTc-DTPA血浆清除率为参照,分析碘海醇清除率及eGFR与参照方法的相关性和一致性.结果 在设定HPLC色谱条件下,碘海醇浓度在10～1 000 mg/L范围内线性良好(R2 =0.9998).批间测量和批内测量相对标准偏差(RSD％)＜5％,平均回收率(R％)＞96％.碘海醇血浆清除率、eGFR与99mTc-DTPA血浆清除率的相关系数(r)分别为0.95和0.63,偏差分别为(6.24±10.81)mL/(min·1.73 m2)和(12.11±22.96) mL/(min·1.73 m2).结论 建立了测定血清碘海醇浓度的HPLC法;初步探索并验证了碘海醇血浆清除率评价儿童肾功能的准确、可行.     

解脲脲原体免疫血清的制备和应用

目的　探讨快速检测解脲脲原体 (UU)的免疫学方法。方法　用处理的临床分离株作为免疫原 ,免疫家兔制备UU免疫血清 ,以自制UU免疫血清作为第一抗体 ,用亲和素 生物素 酶复合物法 (ABC法 )检测了 63例临床标本。结果　UU免疫血清的代谢抑制效价为 1∶640 ,ABC法检测临床标本的阳性率为 54 % ,其结果与培养法比较 ,差异无显著意义 (P >0 .0 5)。结论　ABC法可作为快速检测UU的方法。     

Evaluation of Immunity and Seropositivity of IgG Antibodies to Canine Parvoviruses in Vaccinated and Unvaccinated Dogs in Abeokuta,Nigeria

Canine Parvovirus (CPV) is a very contagious and virulent viral disease affecting domestic dogs all over the world causing high morbidity and mortality in dogs, especially puppies. This study aimed at determining the seropositivity of IgG antibodies against CPV in vaccinated and unvaccinated dogs and to evaluate the immune status of dogs presented in Abeokuta. Forty-eight dogs were enrolled in this study. These dogs were presented at random for treatment, routine checkup, and vaccination at the State Veterinary Hospital and Veterinary Teaching Hospital all in Abeokuta. All the dogs were fully maintained under domestic setting. Selection for study was done based on thorough examination of the dogs and their medical records. The clients were informed of the nature of the investigation. Blood samples were collected and analyzed for anti-CPV-IgG. In principle, protective immunity correlates with high antibody titers and this was determined using a commercially available immunocomb® test kit for anti-CPV IgG antibody. Of 48 dogs sampled, 38 (79.2%) had high level of anti-CPV antibody titer and 10 (20.8%) had low level of anti-CPV antibody titer. Twenty six (54.2%) were males while 22 (45.8%) were females. Forty-five (93.75%) dogs were exotic breeds while 3 (6.25%) dogs were mongrels. Thirty (62.5%) of the dogs were less than one year old and the age range of all dogs sampled was between 7 weeks and 7 years. There was no significant difference (P > 0.05) between sex and the level of immunity but significant differences (P < 0.05) were observed between ages of dogs, breeds, post-vaccination period, and the level of immunity. In conclusion, this study has further confirmed the presence of IgG antibodies against canine parvovirus among dogs in Abeokuta, Nigeria. Of all variables evaluated, ages of dogs, breeds and post-vaccination period were the main correlates of the level of immunity to CPV. This study also showed agreement with previous studies in the diagnostic value of using the immunoblot ELISA assay for the rapid detection of anti-CPV IgG antibody.     

耐高温微生物β淀粉酶的制备及其酶学性质的研究

目的筛选高产微生物β淀粉酶的优良菌株,通过微生物发酵法制备微生物β淀粉酶。方法从南宁明阳生化淀粉厂附近的土壤分离出枯草芽孢杆菌（Bacillus subtilis）原始菌株,取10g土样制成稀释10-2～10-4的倍,平面涂布,单菌落平面纯培养后,纯化选得产β淀粉酶原始菌株,鉴定为枯草芽孢杆菌（命名为NKJ-00）,采用NTG诱变法对枯草芽孢杆菌诱变得突变株,过滤、离心得β淀粉酶粗酶液,采用硫酸铵沉淀法纯化;用蒸馏水代替酶液作为对照组。测定β淀粉酶的酶活力,且对其最适温度、热稳定性、pH的稳定性和金属离子对其的影响等酶学性质进行了测定;最后对β淀粉酶转化可溶性淀粉溶液制备麦芽糖的能力进行了测定。结果枯草芽孢杆菌原始菌株产酶能力为220～230U/ml,得到的4株突变株产酶活力远高于原始菌株,其中NJK-05产酶能力及稳定性最佳,传6代后发酵产酶能力稳定在1500U/ml以上。用NKJ-05菌株发酵制得耐高温微生物β淀粉酶,酶最适温度60～65℃,酶活力为2.2万U/ml,50～65℃是稳定的,pH5～8时相对稳定。pH〉8相对酶活下降较明显,pH〈5时,相对酶活迅速下降;金属离子对β淀粉酶活性有一定的抑制。提取纯化后的β淀粉酶作用于22%～25%的可溶性淀粉溶液得到60%～70%的麦芽糖浆。结论β淀粉酶可通过微生物发酵法生产,微生物β淀粉酶的稳定性、耐高温等指标均超过植物β淀粉酶,纯度基本上达到工业生产的要求。     

加替沙星眼用凝胶的制备及质量控制

介绍了加替沙星眼用凝胶的制备,以HPLC法测定制剂中加替沙星的含量及有关物质,平均回收率为99.46％,RSD％:0.53％,3批样品的含量分别为:99.98％,99.92％,99.90％,有关物质为:0.236％,0.246％,0.237％.该法适用于加替沙显眼用凝胶质量控制.     

Colti病毒抗原制备、保存及其在检测患者血清Colti病毒抗体中的应用

目的 获得较高滴度和稳定的Colti病毒抗原，进一步开展Colti病毒感染的血清学诊断。方法 用C6／36细胞培养Colti病毒，于不同时间收获后进行病毒滴度测定。病毒经聚乙二醇(PEG)纯化浓缩后抗原分别保存于-20℃和4℃备用。利用该抗原采用ELISA法检测患者血清标本的Colti病毒抗体。结果 在制备Colti病毒抗原时，以细胞培养3—4周的病毒滴度最高，经PEG纯化浓缩的抗原于-20℃和4℃条件下，保存6个月，其抗原滴度仍保持在较高水平。特别是加入甘油的抗原无论在-30℃，还是在4℃下，甚至可保存2年。用这些抗原，检测疑似乙型脑炎或病毒性脑炎患者标本1141份，Colti病毒IgM抗体阳性130例，阳性率为11．4％(130／1141)，特别是检测广州市儿童医院患者标本41份，9份Colti病毒抗体阳性，阳性率为22．0％，其中5例临床诊断为病毒性脑炎。结论 为建立检测Colti病毒抗体及诊断试剂盒提供了较稳定的抗原，Colti病毒可能是引起我国夏、秋季脑炎的又一重要病原。     

丝裂霉素C眼用凝胶的制备及质量控制

制备丝裂霉素C眼用凝胶剂并建立其质量控制方法。以丝裂霉素为主药,以卡波姆和羧甲基纤维素（HPMC K4M）为基质制备眼用凝胶,采用HPLC法测定制剂中丝裂霉素C的含量。所制得的眼用凝胶为淡紫色透明状,丝裂霉素C在21-210μg/ml范围内呈良好的线性关系,A=0.482C＋0.009,精密度RSD为0.049%,稳定性RSD为1.28%。该法制备工艺简单,质量可控,有关项目符合眼用凝胶的质量要求。