福清县发现成人T细胞白血病/淋巴瘤病毒的感染

与成人T细胞白血病(ATL)有关的嗜人T细胞白血病/淋巴瘤病毒(简称HTLV-1)是1980～1981年先后由美国和日本学者分离的逆转录病毒[1、2],它与艾滋病病毒属同一族群.人类受本病毒感染后,一旦发病,病死率极高。1986年5月福清县发现1例死于ATL的患者,不久质又发现1例可疑ATL患者和1例恶性淋巴瘤患者。为调查福清县是否存在着HTLV-1病毒、病人或流行区,我们于1986年10月至1987年9月收集了福清县部分正常成人、可疑ATL患者及     

福建省沿海地区人类T淋巴细胞白血病病毒小流行区的发现

福建省血液病研究所吕联煌等通过血清人类T淋巴细胞白血病病毒-Ⅰ(HTLV-I)抗体的流行病学调查,在福建省沿海地区发现HTLV-I小流行区.共调查518人,包括白血病患者210人。发现2例成人 T 淋巴细胞白血病(ATL)患者和5例血清 HTLV-1     

青岛178例白血病患者感染人类T淋巴细胞白血病病毒的调查

<正>人类T淋巴细胞白血病病毒(HTLV)是20世纪80年代初由美国的Gallo实验室和日本的Miyoshi实验室分别从成人T淋巴细胞白血病(ATL)患者外周血培养的T淋巴细胞中分离出的一种逆转录病毒。HTLV分为Ⅰ型和Ⅱ型。HTLV-Ⅰ型与成人ATL、HTLV-Ⅰ相关脊髓病变或热带痉挛性截瘫直接相关;HTLV-Ⅱ型也与白血病的发生有关。为了解HTLV在白血病患者中的感染情况,笔者对青岛地区三家医院178例白血病患者进行了HTLV的筛查,现报告如下。     

选择性抗艾滋病毒新药

1980年前逆转录病毒多半被看为实验室的珍品。当几种逆转录病毒证明与动物肿瘤(白血病、肉瘤)和动物中枢神经系统慢性退行性疾病有关时,人的类似疾病也推测与逆转录病毒有关。直到Gallo等才明确地证明了人类T细胞白血病病毒(HTLV-Ⅰ)和成人T细胞白血病(ATL)的因果关系,接着很快从毛细胞白血病人分离到第2种逆转录病毒HTLV-Ⅱ。1984年,证实人嗜T淋巴细胞病毒(HTLV-Ⅲ),是获得性免疫缺陷综合征     

成人T细胞白血病中的高钙血症和破骨细胞增生

成人T细胞白血病(ATL)是由人类T细胞白血病Ⅰ型病毒(HTLV-Ⅰ)引起的一种恶性疾病,以特征性的异常淋巴细胞(ATL细胞)、皮肤受累、迅速发展的临床经过和高钙血症等为其独特的临床表现。高钙血症和呼吸道感染为其主要死亡原因。     

新型多价人CTL肽构建物可诱导HLA-A^＊0201转基因小鼠产生特异性细胞免疫应答

1型人类嗜T淋巴细胞病毒(HTLV-1)是成人T淋巴细胞白血病(ATL)和HTLV-1相关的脊髓病／热带痉挛性截瘫(HAM／TSP)的致病因素，特异性细胞免疫应答对于消除慢病毒感染非常重要，而多肽类细胞毒性T细胞(CTL)表位疫苗可诱发抗病毒的特异性CTL应答。作者研究了HTLV-1 TAX蛋白的3个CTL表位肽诱导转基因小鼠产生特异性细胞免疫应答的结果。     

第Ⅷ因子制剂与AIDS

法国和美国科研人员已经证实,爱滋病(AIDS)的病原是Ⅲ型人T细胞白血病病毒(HTLV-Ⅲ)。美、英、德等国均从AIDS患者中发现HTLV-Ⅲ抗体,抗体阳性的健康母亲生育的子女中也曾发现AIDS患者。在美     

新型多价人CTL肽构建物可诱导HLA-A~*0201转基因小鼠产生特异性细胞免疫应答

1型人类嗜 T淋巴细胞病毒 ( HTLV- 1 )是成人 T淋巴细胞白血病 ( ATL )和 HTLV-1相关的脊髓病 /热带痉挛性截瘫 ( HAM/TSP)的致病因素 ,特异性细胞免疫应答对于消除慢病毒感染非常重要 ,而多肽类细胞毒性 T细胞 ( CTL)表位疫苗可诱发抗病毒的特异性 CTL 应答。作者研究了 HTLV- 1TAX蛋白的 3个 CTL表位肽诱导转基因小鼠产生特异性细胞免疫应答的结果。　　在设计多肽疫苗时 ,尽可能多地包含CTL表位有可能同时诱导产生较为广泛的特异性细胞免疫应答。因此 ,作者将三个与HLA- A*0 2 0 1相匹配的 CTL 表位肽分别通过两个精…     

一种能产生HTLV-Ⅲ的细胞系可用于制备AIDS疫苗和检测AIDS病人血液抗体的试剂

本文报道H9/HTLV-ⅢBATCC CRL-8543细胞系,它能产生Ⅲ型人类嗜T淋巴细胞病毒(HTLV-Ⅲ),可用于制备AIDS疫苗和检测获得性免疫缺陷综合征(AIDS)或AIDS前期病人或健康携带者血标本中的病毒抗体.亲代HT细胞经反复接触含有     

输血及血液制剂引起的逆转录病毒传播

输血传播入逆转录病毒输血引起Ⅰ型人类嗜T淋巴细胞病毒(HTLV-Ⅰ)的传播输血传播HTLV-Ⅰ仅在日本地方性流行区进行过系统研究,发现41人在接受含有抗HTLV-Ⅰ相关抗原的抗体的全血或血细胞后,有26人(63%)产生HTLV-Ⅰ抗体。虽然输注浓缩红细胞、血小板浓制剂或全血均可引起血清阳转,但只有输入细胞中的感染淋巴细胞传播病毒。接受HTLV-Ⅰ阴性的全血或血     

成人T细胞白血病病毒引起的脑干炎

作者利用明胶颗粒凝集试验、间接免疫荧光抗体试验对35份各种神经系统疾病患者血清进行检测,在1份患重症脑干炎患者血清中发现成人T细胞白血病病毒抗体强阳性,在国内尚无报道。     

A survey of the prevalence of penicillin-specific IgG, IgM and IgE antibodies detected by ELISA and defined by hapten inhibition, in patients with suspected penicillin allergy and in healthy volunteers

1. IgG, IgM and IgE anti-benzylpenicilloyl (BPO) antibody activities were determined by enzyme-linked immunosorbent assay (ELISA) in sera from 100 patients who claimed to be allergic to penicillin, and from 50 healthy volunteers. Continuous frequency distributions for all three classes of anti-BPO antibody, defined as differential binding (delta OD) to BPO-human serum albumin (HSA) and HSA, were obtained for both groups. 2. For IgM and IgE classes the anti-BPO activities were slightly but statistically significantly higher in the patient group compared with the volunteer group. 3. Hapten inhibition ELISAs were performed to confirm specificity for the BPO determinant. On the basis of antibody activities (delta OD values) greater than or equal to 0.3 and 50% inhibition of binding in the presence of 100 micrograms ml-1 BPO-caproate, BPO-specific IgG antibody was identified in 4/100 of the patients' sera and in 1/50 of the volunteers' sera; BPO-specific IgM was identified in 7/100 patients' sera and 1/50 volunteers' sera; and BPO-specific IgE in 5/100 patients' sera and 1/50 volunteers' sera. 4. Not all sera with differential antibody binding to BPO-HSA/HSA were inhibited by the BPO hapten. Hence, hapten inhibition assays are essential for the unambiguous demonstration of drug specific antibodies.     

表达甲型H1N1流感病毒血凝素抗原的DNA疫苗构建及其免疫原性评价

目的 构建表达甲型H1N1流感病毒血凝素(hemagglutinin,HA)抗原的DNA疫苗,并在小鼠中测试其免疫原性.方法 运用人密码子优化技术合成甲型H1N1流感病毒HA序列,并转移至DNA疫苗载体,用Western blotting检测其表达效率.采用单纯随机抽样方法把BALB/c小鼠分成DNA疫苗组和对照组.用...     

山西地区HTLV抗体调查

人T细胞白血病/淋巴瘤病毒(HTLV)和其抗体的发现,引起对HTLV在世界各地感染和流行情况的研究。本文用荧光抗体间接法检测了山西地区865份正常人和患者血清中HTLV抗体存在的情况,结果全是阴性。这表明山西地区人群中HTLV的感染率是极低的,也可能不存在此感染。     

两种双抗原夹心法检测抗人类免疫缺陷病毒抗体的方法比较

目的 探讨酶联免疫吸附试验(ELISA)与胶体金法检测抗人类免疫缺陷病毒抗体(抗HIV抗体)的灵敏度及特异度.方法(1)灵敏度试验:将15份经免疫印迹法确诊为获得性免疫缺陷综合征(AIDS)患者的血清进行倍比稀释,应用ELISA法和胶体金法检测所有患者血清原液、稀释血清的抗HIV抗体,记录两种方法抗HIV抗体检测结果为阳性的最大稀释倍数.(2)特异度试验:应用上述两种方法同时检测200份非AIDS患者的血清,记录两种方法的阴性率.结果(1)灵敏度试验:ELISA法的最大稀释倍数显著高于胶体金法(P＜0.05).(2)特异度试验:两种方法的阴性率均为100％,差异无统计学意义(P＞0.05).结论 ELISA法抗HIV抗体的灵敏度优于胶体金法,但是两种方法检测血清原液的灵敏度、特异度结果均一致,因此胶体金法可以代替ELISA法用于AIDS的初筛试验.     

Design,expression, and evaluation of novel multiepitope chimeric antigen of Wuchereria bancrofti for the diagnosis of lymphatic filariasis – A structure-based strategy

The Global Program for Elimination Lymphatic Filariasis (GPELF) is in an advanced stage and requires tools for diagnosing infection, assessing transmission and certification. This study was aimed at developing an antibody-based assay using a chiemric antigen containing multi-B-cell epitopes from antigens highly expressed in different stages of Wuchereria bancrofti to detect LF infection and its transmission. The antigen was express cloned and two indirect ELISA based (IgG1 & IgG4 based) antibody assays were developed using the recombinant antigen. The chimeric antigen displayed 1 and 3-fold reactivity with IgG1 and IgG4 antibodies, respectively in microfilaraial (mf) positive sera when compared to that in sera samples of Non-endemic normal sera (NEN) (O.D, 0.13 ± 0.20 and 0.18 ± 0.07), thus differentiating infected from uninfected individuals. In IgG1 and IgG4 antibody assays, the multiepitope antigen also showed reactivity (O.D, 0.27 ± 0.18 and 0.16 ± 0.03) in a small proportion (18 and 30, respectively out of 156) endemic normal individuals and in IgG1 antibody in a few (4) chronic patients (CP). The antigen did not react with IgG1 or IgG4 antibodies in the sera samples of malaria, scrub typhus, dengue, hookworm, and roundworm helminth cases (0.139 ± 0.018, 0.144 ± 0.007 0.17804 ± 0.007 and 0.162 ± 0.006), thus showing its high specificity. The sensitivity (%) and specificity (%) of the multi-epitope antigen-based IgG1 and IgG4 antibody assays are 100, 98.1 and 100, 99.52, respectively. Thus, the recombinant multiepitope antigen appears to have good potential in detecting active LF infection and in assessing its transmission in endemic communities.     

生姜产地与非产地学龄儿童幽门螺杆菌感染状况调查

目的研究生姜产地与非产地学龄儿童幽门螺杆菌（Hp）的感染情况与食用新鲜生姜等因素的关系,为防治学龄儿童Hp感染提供基础资料。方法对生姜产地与非产地213例学龄儿童应用免疫层析法进行Hp抗体检测以了解Hp感染状态。结果生姜产地学龄儿童Hp感染率为24.07%（26/108）;非产地学龄儿童Hp感染率为38.10%（40/105）。两地学龄儿童的感染率差异有统计学意义（P〈0.05）。结论生姜产地学龄儿童的Hp感染率低于非产地学龄儿童的感染率,食用新鲜生姜有助于降低感染率。     

上海地区人群甲型H1N1流感抗体水平监测分析

目的 了解上海地区不同年龄组人群甲型H1N1流感血清抗体水平,对人群中甲型H1N1与2008-2009年季节性流感疫苗株A/Brisbane/59/2007(H1N1)的血清抗体水平进行分析比较.方法 应用常规微量血凝抑制试验(micro-hemagglutination inhibition test,HI)对上海地区不同年龄组(0～5月龄、6月龄～4岁、5～24岁、25～59岁和≥60岁)人群进行甲型H1N1流感抗体检测.各年龄组抗体阳性率的比较采用Pearson X2检验和Fisher确切概率法进行分析.结果 上海地区人群甲型H1N1流感血清抗体总阳性率为9.2%(37/404).不同年龄组中以老年人组(≥60岁)的血清抗体阳性率最高,为25.0%(21/84);其次是成年人组(25～59岁),血清抗体阳性率为10.0%(8/80);其他年龄组血清抗体阳性率较低.Pearson X2检验结果显示不同年龄组之间抗体阳性率差异有统计学意义.在2008-2009年季节性流感疫苗株A/Brisbane/59/2007(H1N1)抗体阳性的329份血清中有31份甲型H1N1流感抗体阳性,季节性疫苗株抗体阴性的75份血清中有6份甲型H1N1流感抗体阳性.经Pearson X2检验分析,这两层人群甲型H1N1流感抗体阳性率差异没有统计学意义.结论 上海地区人群血清中甲犁H1N1流感抗体水平普遍偏低,其中老年人组抗体水平最高,人群对甲型H1N1流感病毒普遍高度易感;季节性疫苗株A/Brisbane/59/2007(H1N1)HI抗体阳性人群血清不能对甲型H1N1流感病毒产生交叉保护抑制.     

Anxiolytic-like effect of a serotonergic ligand with high affinity for 5-HT1A, 5-HT2A and 5-HT3 receptors

S-(-)-2-[[4-(napht-1-yl)piperazin-1-yl]methyl]-1,4-dioxoperhydropyrrolo[1,2-alpha]-pyrazine (CSP-2503) is a serotonin (5-HT) receptor ligand with selectivity and high affinity for 5-HT1A, 5-HT2A and 5-HT3 receptors. CSP-2503 reduced rectal temperature and 5-HT neuronal hypothalamic activity in mice, decreased electrical activity of raphe nuclei cells in rats and blocked the enhancement of adenylate cyclase activity induced by forskolin in HeLa cells transfected with the human 5-HT1A receptor. This compound also blocked head-twitches induced by the 5-HT(2A/2C) receptor agonist 2,5-dimethoxy-4-iodoamphetamine (DOI). Contractions of guinea pig ileum induced by the 5-HT3 receptor agonist 2-methyl-5-HT were prevented by CSP-2503. Moreover, it reduced the bradycardia reflex induced by 2-methyl-5-HT in anaesthetized rats. In the light/dark box and social interaction tests, CSP-2503 presented anxiolytic activity, an action shared by 5-HT1 agonists and 5-HT3 antagonists. Taken together, these results suggest that CSP-2503 is a new 5-HT1 receptor agonist with 5-HT2A and 5-HT3)receptor antagonist activities that might be useful in a number of conditions associated with anxiety.     

狼疮肾炎患者血清自身抗体检测及意义

目的探讨狼疮肾炎（LN）患者血清自身抗体检测的临床意义。方法检测60例系统性红斑狼疮（SLE）患者血清抗Clq抗体、ANA抗体、抗dsDNA、核小体、抗一Sm抗体,并依据有无狼疮肾炎分为狼疮肾炎组（A组）38例和无狼疮肾炎的SLE对照组（B组）22例。结果A组抗C1q、dsDNA、核小体、抗-Sm和ANA抗体阳性率显著高于B组（均P〈0．01）,血清中抗C1q抗体水平分别与SLEDAI评分、抗ANA水平呈显著正相关（均P〈0．01）;与补体C3、C4含量呈显著负相关（P〈0．01）。结论抗C1q抗体、dsDNA、核小体和ANA是反映SLE患者并发肾脏损害的重要指标,在LN诊断和判定活动性方面有重要作用。