老年人梅毒筛查阳性与荧光梅毒螺旋体抗体吸收法及蛋白质印迹法复测结果的对比分析

目的:比较老年人梅毒筛查阳性与确认指标之间的关系,分析各检测指标在老年梅毒诊断的临床价值。方法:用酶联免疫吸附试验及甲苯胺红试验作为梅毒筛查,对老年人阳性标本用梅毒螺旋体明胶凝集试验检测,两种方法均为阳性者用荧光梅毒螺旋体抗体吸收法(FTA-ABS)检测及蛋白质印迹法(WB)确认,并对实验结果进行统计分析。结果:对酶联免疫吸附试验筛查梅毒的76例老年人阳性标本,用梅毒螺旋体明胶凝集试验检测有72例阳性,阳性符合率94.7%;两种方法均为阳性的72例标本经FTA-ABS及WB检测确证阳性71例,阳性符合率98.6%;并且FTA-ABS检测与WB检测结果一致。结论:为了提高老年人梅毒的检出率及正确性,对梅毒筛查阳性标本,应用TPPA进行确证,有疑义者用FTA-ABS或WB进行进一步检测确证。     

间接荧光抗体试验诊断阿米巴病

用生长在LAS双相培养基上48h的贴壁Entamoeba histolytica作抗原和稍加修改的Содовьев等(1971)方法进行间接荧光抗体试验,结果4例阿米巴肝脓肿病人血清全部阳性,而且阳性滴度相当高;16例急性阿米巴痢疾患者血清有13例阳性,阳性率为81％;5例正常人血清均阴性。     

Indirect fluorescent antibody test for the diagnosis and therapeutic evaluation of trichinosis

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A direct fluorescent antibody test for identification of group E streptococci

A rapid and specific direct fluorescent antibody test was developed for the identification of group E Streptococci (GES). Tests for specificity included an inhibition test and application of the conjugate to smears of Staphylococcus aureus, Pasteurella multocida, and streptococci of Lancefield's groups, A, B, C, D, E (types I, IV and untypeable), F and G. With the inhibition test, a specific blocking reaction occurred and the conjugate cross-reacted only with group C Streptococci (GCS). Adsorption with GCS eliminated the cross-reaction and rendered the conjugate specific for GES.     

海南省疟疾间接荧光抗体监测分析

目的了解各监测点疟疾流行情况,考核防治效果。方法采用间接荧光抗体试验（IFAT）,以学龄儿童为检查对象,对监测点进行纵向监测,通过学龄儿童疟疾抗体水平分析疟疾流行态势。结果 5个监测点的疟疾抗体阳性率从2005年的5%左右下降到2010年1%以下。结论各监测点的疟疾流行已得到有效遏制,疟疾传播似已阻断,表明我省的抗疟措施得力,防治效果显著。     

皮内试验和间接荧光抗体试验诊断并殖吸虫病的初步研究

应用并殖吸虫成虫可溶性抗原对8例并殖吸虫病患者进行皮内试验,其中7例为阳性反应。应用并殖吸虫成虫冰冻切片间接荧光抗体试验(IFAT),对并殖吸虫病、其它寄生虫病及非流行区正常人血清进行检测井殖吸虫抗体,结果:8份该病患者血清IFAT均为阳性反应,囊虫病患者血清7份及脑脊液2份,蛔虫病、丝虫病、华枝睾吸虫病患者血清各2份,非流行区正常人血清16份,IFAT均为阴性反应;旋毛虫病患者血清15份中,14份IFAT呈阴性反应,另一份IFAT为弱阳性反应。     

An indirect fluorescent antibody test for antibodies to transmissible gastroenteritis of swine.

The indirect fluorescent antibody test was modified to provide a rapid technique for the detection, screening and titration of antibodies to transmissible gastroenteritis of pigs. Large numbers of slides containing transmissible gastroenteritis antigen were prepared by planting mixtures of infected and uninfected swine testicular cells onto multiwelled teflon-coated slides. After overnight incubation, about one-half of the cells in each well were infected which provided contrast to aid in detecting specific fluorescence in the presence of varying degrees of background staining. Following fixation, antigen slides were stored at -20 degrees C until used. The indirect fluorescent antibody test was compared to the virus neutralization test in both the screening and titration of swine sera containing transmissible gastroenteritis antibodies. The test was found to be sensitive and reliable and to offer certain advantages over the virus neutralization test.     

An indirect fluorescent antibody test for the detection of Cytauxzoon-like organisms in experimentally infected cats.

Antiserum to feline Cytauxzoon-like parasites was used in conjunction with labeled rabbit antisera to feline globulins to detect the presence of Cytauxzoon-like parasites in spleens of experimentally infected cats. Frozen spleen sections from 21 infected cats showed positively fluorescing masses within splenic veins and a diffuse scattering of discretely fluorescing cells in the red and white pulp. The distribution of fluorescence corresponded with the appearance of parasitized reticuloendothelial cells in histological preparations of spleen tissue. This indirect fluorescent antibody test consistently detected the presence of Cytauxzoon-like parasites in frozen spleen sections from experimentally infected cats.     

梅毒孕妇及其患儿的临床表现与梅毒抗体的分析研究

目的 了解梅毒孕妇及其先天梅毒患儿的临床特点及血清、脑脊液梅毒抗体的检测情况。方法 对40例梅毒孕妇及其所产婴儿进行了临床特点和血清、脑脊液梅毒抗体的分析。结果 40例梅毒孕妇中，潜伏梅毒占87．5％，TPPA检测均阳性，RPR阳性的有35例，滴度介于1：1—1：128之间；40例先天梅毒患儿中出现皮疹的有14例（35％），有骨损害表现的6例（15％），由于母亲忘梅毒而就诊的16例（40％），RPR检测阳性33例（82，5％），滴度介于1：1～1：64之间，2例RPR异常增高，滴度为1：128。脑脊液常规检查显示，45％患儿淋巴细胞增高，50％蛋白增多，22．5％梅毒抗体检测阳性。结论应重视妊娠期梅毒筛查，对于确诊的先天梅毒患儿，注意无症状神经梅毒的发生，为正确评价病情和治疗有重大意义。     

云南西双版纳新开发区疟疾间接荧光抗体检测

目的 了解西双版纳景洪县新开发区疟疾流行情况和居民疟疾抗体水平。方法 全部居民耳垂采血制直径1．2cm滤纸干血滴,按常规IFAT试验方法检测疟疾抗体。结果 检测1215人份,IFAT抗体阳性559人,总阳性率为46．01％,原虫率2．75％。其中1-15岁380人,抗体阳性174人,阳性率45．19％,原虫率3．68％;16-30岁401人,抗体阳性190人,阳性率47．38％,原虫率2．74％;〉30岁434人,抗体阳性195人,阳性率44．93％,原虫率1．84％。结论 西双版纳新开发区疟疾处于较高的疟疾流行之中,应加强新开发区人群的疟疾防治宣教工作,控制流动人口,加强蚊媒防制,防止疟疾的暴发流行。     

A new fluorescent mitochondrial antibody: Disease association

The case notes of 34 patients whose sera contained an antibody giving an unusual immunofluorescent staining pattern were reviewed. This antibody designated M2(1) gave a slightly different pattern of staining on composite sections of rat liver, kidney and stomach from the primary biliary cirrhosis associated M2 antimitochondrial antibody. Anaemia was present in 10 patients, endocrine disease in 7 patients and autoimmune liver disease in 6 patients. We did not find the presence of M2(l) antibody to be of specific diagnostic significance. Although the M2(l) antibody is rare, caution is required in order to avoid confusion between this antibody and the M2 antimitochondrial antibody of primary biliary cirrhosis.