Clinical and diagnostic laboratory immunology最新文献

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Xylitol inhibits inflammatory cytokine expression induced by lipopolysaccharide from Porphyromonas gingivalis. 木糖醇可抑制牙龈卟啉单胞菌脂多糖诱导的炎症细胞因子表达。
Clinical and diagnostic laboratory immunology Pub Date : 2005-11-01 DOI: 10.1128/CDLI.12.11.1285-1291.2005
Su-Ji Han, So-Yeon Jeong, Yun-Ju Nam, Kyu-Ho Yang, Hoi-Soon Lim, Jin Chung
{"title":"Xylitol inhibits inflammatory cytokine expression induced by lipopolysaccharide from Porphyromonas gingivalis.","authors":"Su-Ji Han, So-Yeon Jeong, Yun-Ju Nam, Kyu-Ho Yang, Hoi-Soon Lim, Jin Chung","doi":"10.1128/CDLI.12.11.1285-1291.2005","DOIUrl":"10.1128/CDLI.12.11.1285-1291.2005","url":null,"abstract":"<p><p>Porphyromonas gingivalis is one of the suspected periodontopathic bacteria. The lipopolysaccharide (LPS) of P. gingivalis is a key factor in the development of periodontitis. Inflammatory cytokines play important roles in the gingival tissue destruction that is a characteristic of periodontitis. Macrophages are prominent at chronic inflammatory sites and are considered to contribute to the pathogenesis of periodontitis. Xylitol stands out and is widely believed to possess anticaries properties. However, to date, little is known about the effect of xylitol on periodontitis. The aim of the present study was to determine tumor necrosis factor alpha (TNF-alpha) and interleukin-1beta (IL-1beta) expression when RAW 264.7 cells were stimulated with P. gingivalis LPS (hereafter, LPS refers to P. gingivalis LPS unless stated otherwise) and the effect of xylitol on the LPS-induced TNF-alpha and IL-1beta expression. The kinetics of TNF-alpha and IL-1beta levels in culture supernatant after LPS treatment showed peak values at 1 h (TNF-alpha) and 2 to 4 h (IL-1beta), respectively. NF-kappaB, a transcription factor, was also activated by LPS treatment. These cytokine expressions and NF-kappaB activation were suppressed by pretreatment with pyrrolidine dithiocarbamate (an inhibitor of NF-kappaB). Pretreatment with xylitol inhibited LPS-induced TNF-alpha and IL-1beta gene expression and protein synthesis. LPS-induced mobilization of NF-kappaB was also inhibited by pretreatment with xylitol in a dose-dependent manner. Xylitol also showed inhibitory effect on the growth of P. gingivalis. Taken together, these findings suggest that xylitol may have good clinical effect not only for caries but also for periodontitis by its inhibitory effect on the LPS-induced inflammatory cytokine expression.</p>","PeriodicalId":72602,"journal":{"name":"Clinical and diagnostic laboratory immunology","volume":"12 11","pages":"1285-91"},"PeriodicalIF":0.0,"publicationDate":"2005-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC1287760/pdf/0154-05.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"25678268","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Immunogenicity of fowlpox virus expressing the avian influenza virus H5 gene (TROVAC AIV-H5) in cats. 表达禽流感病毒H5基因(TROVAC AIV-H5)的禽痘病毒在猫中的免疫原性
Clinical and diagnostic laboratory immunology Pub Date : 2005-11-01 DOI: 10.1128/CDLI.12.11.1340-1342.2005
Kemal Karaca, David E Swayne, Deborah Grosenbaugh, Michel Bublot, Amy Robles, Erica Spackman, Robert Nordgren
{"title":"Immunogenicity of fowlpox virus expressing the avian influenza virus H5 gene (TROVAC AIV-H5) in cats.","authors":"Kemal Karaca,&nbsp;David E Swayne,&nbsp;Deborah Grosenbaugh,&nbsp;Michel Bublot,&nbsp;Amy Robles,&nbsp;Erica Spackman,&nbsp;Robert Nordgren","doi":"10.1128/CDLI.12.11.1340-1342.2005","DOIUrl":"https://doi.org/10.1128/CDLI.12.11.1340-1342.2005","url":null,"abstract":"<p><p>Vaccination of cats with fowlpox virus expressing the avian influenza (AI) virus H5 hemagglutinin gene (TROVAC AI) resulted in detectable hemagglutination inhibition (HI) antibody responses to the homologous A/Turkey/Ireland/1378/83 (H5N8) (A/tky/Ire/83) AI virus antigen. The HI antibody responses to heterologous A/Chicken/Indonesia/7/03 (H5N1) (A/ck/Indonesia/03) AI virus antigen were also detected in all vaccinated cats, but only after booster vaccinations. The vaccine described in this study and other poxvirus-vectored vaccines may be of value for the prophylaxis of AI virus-associated morbidity and mortality in mammals.</p>","PeriodicalId":72602,"journal":{"name":"Clinical and diagnostic laboratory immunology","volume":"12 11","pages":"1340-2"},"PeriodicalIF":0.0,"publicationDate":"2005-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1128/CDLI.12.11.1340-1342.2005","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"25681107","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 36
Persistent replication of human immunodeficiency virus type 1 despite treatment of pulmonary tuberculosis in dually infected subjects. 尽管在双重感染的受试者中治疗肺结核,人类免疫缺陷病毒1型持续复制。
Clinical and diagnostic laboratory immunology Pub Date : 2005-11-01 DOI: 10.1128/CDLI.12.11.1298-1304.2005
Harriet Mayanja Kizza, Benigno Rodriguez, Miguel Quinones-Mateu, Muneer Mirza, Htin Aung, Belinda Yen-Lieberman, Colleen Starkey, Libby Horter, Pierre Peters, Joy Baseke, John L Johnson, Zahra Toossi
{"title":"Persistent replication of human immunodeficiency virus type 1 despite treatment of pulmonary tuberculosis in dually infected subjects.","authors":"Harriet Mayanja Kizza,&nbsp;Benigno Rodriguez,&nbsp;Miguel Quinones-Mateu,&nbsp;Muneer Mirza,&nbsp;Htin Aung,&nbsp;Belinda Yen-Lieberman,&nbsp;Colleen Starkey,&nbsp;Libby Horter,&nbsp;Pierre Peters,&nbsp;Joy Baseke,&nbsp;John L Johnson,&nbsp;Zahra Toossi","doi":"10.1128/CDLI.12.11.1298-1304.2005","DOIUrl":"https://doi.org/10.1128/CDLI.12.11.1298-1304.2005","url":null,"abstract":"<p><p>Tuberculosis (TB) is the most common life-threatening infection in human immunodeficiency virus (HIV)-infected persons and frequently occurs before the onset of severe immunodeficiency. Development of TB is associated with increased HIV type 1 (HIV-1) viral load, a fall in CD4 lymphocyte counts, and increased mortality. The aim of this study was to examine how treatment of pulmonary TB affected HIV-1 activity in HIV-1/TB-coinfected subjects with CD4 cell counts of >100 cells/mul. HIV-1/TB-coinfected subjects were recruited in Kampala, Uganda, and were monitored over time. Based upon a significant (0.5 log10 copies/ml) decrease in viral load by the end of treatment, two patient groups could be distinguished. Responders (n = 17) had more rapid resolution of anemia and pulmonary lesions on chest radiography during TB treatment. This group had a significant increase in viral load to levels not different from those at baseline 6 months after completion of TB treatment. HIV-1 viral load in nonresponders (n = 10) with TB treatment increased and at the 6 month follow-up was significantly higher than that at the time of diagnosis of TB. Compared to baseline levels, serum markers of macrophage activation including soluble CD14 decreased significantly by the end of TB treatment in responders but not in nonresponders. These data further define the impact of pulmonary TB on HIV-1 disease. HIV-1 replication during dual HIV-1/TB infection is not amenable to virologic control by treatment of TB alone. Concurrent institution of highly active antiretroviral treatment needs to be evaluated in patients dually infected with pulmonary TB and HIV-1.</p>","PeriodicalId":72602,"journal":{"name":"Clinical and diagnostic laboratory immunology","volume":"12 11","pages":"1298-304"},"PeriodicalIF":0.0,"publicationDate":"2005-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1128/CDLI.12.11.1298-1304.2005","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"25678270","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 30
Serological markers (anti-Saccharomyces cerevisiae mannan antibodies and antineutrophil cytoplasmic antibodies) in inflammatory bowel disease: diagnostic utility and phenotypic correlation. 炎症性肠病的血清学标志物(抗酿酒酵母甘露聚糖抗体和抗中性粒细胞细胞质抗体):诊断效用和表型相关性
Clinical and diagnostic laboratory immunology Pub Date : 2005-11-01 DOI: 10.1128/CDLI.12.11.1328-1330.2005
M S Buckland, M Mylonaki, D Rampton, H J Longhurst
{"title":"Serological markers (anti-Saccharomyces cerevisiae mannan antibodies and antineutrophil cytoplasmic antibodies) in inflammatory bowel disease: diagnostic utility and phenotypic correlation.","authors":"M S Buckland,&nbsp;M Mylonaki,&nbsp;D Rampton,&nbsp;H J Longhurst","doi":"10.1128/CDLI.12.11.1328-1330.2005","DOIUrl":"https://doi.org/10.1128/CDLI.12.11.1328-1330.2005","url":null,"abstract":"<p><p>We have evaluated the utility of antineutrophil cytoplasmic antibodies and anti-Saccharomyces cerevisiae mannan antibodies for distinguishing Crohn's disease from ulcerative colitis and other diarrheal illnesses by evaluating sera from 396 patients. Sensitivity, specificity, and phenotypic correlations were investigated. The implications of our findings for implementing these tests in routine clinical testing are discussed.</p>","PeriodicalId":72602,"journal":{"name":"Clinical and diagnostic laboratory immunology","volume":"12 11","pages":"1328-30"},"PeriodicalIF":0.0,"publicationDate":"2005-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1128/CDLI.12.11.1328-1330.2005","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"25681103","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 14
Evaluation of a western blot method for the detection of Yersinia antibodies: evidence of serological cross-reactivity between Yersinia outer membrane proteins and Borrelia burgdorferi. 检测耶尔森氏菌抗体的western blot方法的评价:耶尔森氏菌外膜蛋白与伯氏疏螺旋体之间血清学交叉反应的证据。
Clinical and diagnostic laboratory immunology Pub Date : 2005-11-01 DOI: 10.1128/CDLI.12.11.1269-1274.2005
Mindy L Rawlins, Cecilia Gerstner, Harry R Hill, Christine M Litwin
{"title":"Evaluation of a western blot method for the detection of Yersinia antibodies: evidence of serological cross-reactivity between Yersinia outer membrane proteins and Borrelia burgdorferi.","authors":"Mindy L Rawlins,&nbsp;Cecilia Gerstner,&nbsp;Harry R Hill,&nbsp;Christine M Litwin","doi":"10.1128/CDLI.12.11.1269-1274.2005","DOIUrl":"https://doi.org/10.1128/CDLI.12.11.1269-1274.2005","url":null,"abstract":"<p><p>Yersinia enterocolitica and Yersinia pseudotuberculosis have been identified as causative organisms of reactive arthritis in humans. We evaluated a Western blot assay which uses Yersinia outer membrane proteins as antigens for the detection of Yersinia antibodies as a replacement for the complement fixation (CF) assay. Clinical agreement, sensitivity, and specificity were determined by testing 19 positive and 21 negative serum samples by the CF assay, Western blot assay, and enzyme-linked immunosorbent assay (ELISA). The CF assay and ELISA were compared to the Western blot assay, which was the reference method used in this study. Sera with antibodies that could potentially cross-react with Yersinia were also tested by the Western blot assay. The agreement, sensitivity, and specificity of the CF method were 61%, 26%, and 95%, respectively; and those for the ELISA were 89%, 95%, and 82%, respectively. The prevalences of Yersinia antibodies in 50 healthy donors were 6% for immunoglobulin G (IgG), 2% for IgA, and 2% for IgM. Sera positive for Bartonella henselae, Brucella, Chlamydia pneumoniae, and Rickettsia rickettsii antibodies showed cross-reactivity by the Western blot assay. The highest cross-reactivity was observed with Borrelia burgdorferi; 5 of 11 (45%) specimens were cross-reactive by the IgM-specific assay. Overall, the Western blot assay performs acceptably and is more sensitive than the CF assay, warranting replacement of the CF assay in the laboratory. Due to the evidence of cross-reactivity, particularly with B. burgdorferi, which can cause an oligoarthritis similar to reactive arthritis, the diagnosis of reactive arthritis should be based on clinical findings and complete serologic analysis of the potential causative infectious pathogens.</p>","PeriodicalId":72602,"journal":{"name":"Clinical and diagnostic laboratory immunology","volume":"12 11","pages":"1269-74"},"PeriodicalIF":0.0,"publicationDate":"2005-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1128/CDLI.12.11.1269-1274.2005","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"25678401","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 25
Alterations of natural killer cell and T-lymphocyte counts in adults infected with human immunodeficiency virus through blood and plasma sold in the past in China and in whom infection has progressed slowly over a long period. 中国过去出售的经血液和血浆感染人类免疫缺陷病毒且感染进展缓慢的成人的自然杀伤细胞和t淋巴细胞计数的变化
Clinical and diagnostic laboratory immunology Pub Date : 2005-11-01 DOI: 10.1128/CDLI.12.11.1275-1279.2005
Yongjun Jiang, Hong Shang, Zining Zhang, Yingying Diao, Di Dai, Wenqing Geng, Min Zhang, Xiaoxu Han, Yanan Wang, Jing Liu
{"title":"Alterations of natural killer cell and T-lymphocyte counts in adults infected with human immunodeficiency virus through blood and plasma sold in the past in China and in whom infection has progressed slowly over a long period.","authors":"Yongjun Jiang,&nbsp;Hong Shang,&nbsp;Zining Zhang,&nbsp;Yingying Diao,&nbsp;Di Dai,&nbsp;Wenqing Geng,&nbsp;Min Zhang,&nbsp;Xiaoxu Han,&nbsp;Yanan Wang,&nbsp;Jing Liu","doi":"10.1128/CDLI.12.11.1275-1279.2005","DOIUrl":"https://doi.org/10.1128/CDLI.12.11.1275-1279.2005","url":null,"abstract":"<p><p>Natural killer (NK) cells, natural killer T (NKT) cells, and T lymphocytes were analyzed by using a flow cytometer in 225 human immunodeficiency virus (HIV)-positive individuals infected through the past sale of blood and plasma without receiving antiretroviral therapy in the People's Republic of China. According to CD4 T-cell counts these HIV-infected adults were stratified into three groups: long-term slow progressors, HIV-infected subjects, and AIDS patients. NK cell counts in long-term slow progressors were higher compared to HIV infection and AIDS patients (P < 0.05) and lower compared to normal controls (P < 0.05), whereas NKT cell counts in slow progressors and the HIV infection group were not different from those of normal controls. NK cell counts in HIV-seropositive subjects were positively correlated with CD4 T-cell counts (P < 0.05), and NKT cell counts were positively correlated with CD4 T-cell and CD8 T-cell counts (P < 0.05). The CD8 T-cell counts were higher in slow progressors compared to those with HIV infection, AIDS patients, and normal controls. These results indicated that HIV infection causes alterations of NK cells and T cells in slow progressors, HIV-infected subjects, and AIDS patient groups, but no difference was found in NKT cell counts and percentages in slow progressors and the HIV-infected group compared to normal controls.</p>","PeriodicalId":72602,"journal":{"name":"Clinical and diagnostic laboratory immunology","volume":"12 11","pages":"1275-9"},"PeriodicalIF":0.0,"publicationDate":"2005-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1128/CDLI.12.11.1275-1279.2005","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"25677794","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 10
Effects of porcine circovirus type 2 (PCV2) maternal antibodies on experimental infection of piglets with PCV2. 猪圆环病毒2型(PCV2)母源抗体对仔猪实验感染的影响
Clinical and diagnostic laboratory immunology Pub Date : 2005-11-01 DOI: 10.1128/CDLI.12.11.1347-1351.2005
N E McKeown, T Opriessnig, P Thomas, D K Guenette, F Elvinger, M Fenaux, P G Halbur, X J Meng
{"title":"Effects of porcine circovirus type 2 (PCV2) maternal antibodies on experimental infection of piglets with PCV2.","authors":"N E McKeown,&nbsp;T Opriessnig,&nbsp;P Thomas,&nbsp;D K Guenette,&nbsp;F Elvinger,&nbsp;M Fenaux,&nbsp;P G Halbur,&nbsp;X J Meng","doi":"10.1128/CDLI.12.11.1347-1351.2005","DOIUrl":"https://doi.org/10.1128/CDLI.12.11.1347-1351.2005","url":null,"abstract":"<p><p>To determine the effects of porcine circovirus type 2 (PCV2) maternal antibodies on and response to experimental PCV2 infection, 24 piglets were divided into four groups on the basis of the enzyme-linked immunosorbent assay titers of PCV2 maternal antibodies: group A (n = 6; sample/positive [S/P] ratio, <0.2), group B (n = 5; S/P ratio, >0.2 to <0.5), and groups C (n = 8) and D (n = 5) (S/P ratio, >0.5). Piglets in groups A, B, and C were inoculated with PCV2 at day 0 and challenged with PCV2 at day 42. Group D piglets were not exposed to PCV2 at day 0 but were challenged at day 42. Before challenge, seroconversion to PCV2 antibodies occurred in five of six group A piglets, and the antibody level rose above the cutoff level in one of five group B piglets. Viremia was detected in five of six, four of five, and two of eight pigs in groups A, B, and C, respectively. After challenge, PCV2 DNA was detectable from 7 to 21 days postchallenge in the sera from six of six, four of five, three of eight, and five of five pigs in groups A, B, C, and D, respectively. The results indicated that protection against PCV2 infection conferred by maternal antibodies is titer dependent: higher titers are generally protective, but low titers are not.</p>","PeriodicalId":72602,"journal":{"name":"Clinical and diagnostic laboratory immunology","volume":"12 11","pages":"1347-51"},"PeriodicalIF":0.0,"publicationDate":"2005-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1128/CDLI.12.11.1347-1351.2005","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"25681109","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 103
Comparison of galactomannan detection, PCR-enzyme-linked immunosorbent assay, and real-time PCR for diagnosis of invasive aspergillosis in a neutropenic rat model and effect of caspofungin acetate. 比较半乳甘露聚糖检测法、PCR-酶联免疫吸附测定法和实时 PCR 法诊断中性粒细胞减少大鼠侵袭性曲霉菌病以及醋酸卡泊芬净的效果。
Clinical and diagnostic laboratory immunology Pub Date : 2005-11-01 DOI: 10.1128/CDLI.12.11.1322-1327.2005
Jennifer M Scotter, Stephen T Chambers
{"title":"Comparison of galactomannan detection, PCR-enzyme-linked immunosorbent assay, and real-time PCR for diagnosis of invasive aspergillosis in a neutropenic rat model and effect of caspofungin acetate.","authors":"Jennifer M Scotter, Stephen T Chambers","doi":"10.1128/CDLI.12.11.1322-1327.2005","DOIUrl":"10.1128/CDLI.12.11.1322-1327.2005","url":null,"abstract":"<p><p>The performance of different in vitro diagnostic tests for the diagnosis of invasive aspergillosis (IA) was investigated in a transiently neutropenic rat model. Rats were immunosuppressed with cyclophosphamide and then inoculated intravenously with 1.5 x 10(4) CFU Aspergillus fumigatus spores. Animals were then either treated with caspofungin acetate, 1 mg/kg/day for 7 days, or not treated. PCR-enzyme-linked immunosorbent assay (ELISA), real-time PCR, and galactomannan (GM) detection were performed on postmortem blood samples, along with culture of liver, lung, and kidney homogenate. Caspofungin-treated animals showed a decrease in residual tissue burden of A. fumigatus from organ homogenate compared to untreated animals (P < 0.002). PCR-ELISA returned positive results for 11/17 animals treated with antifungal agents and for 10/17 untreated animals. Galactomannan was positive in 8/17 caspofungin-treated animals and 4/17 untreated animals. Real-time PCR was positive in 2/17 treated and 3/17 untreated animals. This study demonstrates that PCR-ELISA is a more sensitive test than either GM detection (P = 0.052) or real-time PCR (P < 0.01) for diagnosis of IA but that any of the three tests may return false-negative results in cases of histologically proven disease. Galactomannan indices from animals treated with antifungal agents showed a trend (P = 0.1) towards higher levels than those of untreated animals, but no effect was observed with PCR-ELISA indices (P = 0.29). GM detection, as previously described, may be enhanced by the administration of caspofungin, but PCR-ELISA appears not to be affected in the same way. We conclude that PCR-ELISA is a more sensitive and reliable method for laboratory diagnosis of IA.</p>","PeriodicalId":72602,"journal":{"name":"Clinical and diagnostic laboratory immunology","volume":"12 11","pages":"1322-7"},"PeriodicalIF":0.0,"publicationDate":"2005-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC1287761/pdf/0163-05.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"25681102","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Validation of a monoclonal antibody-based capture enzyme-linked immunosorbent assay for detection of Campylobacter fetus. 基于单克隆抗体的捕获酶联免疫吸附法检测弯曲杆菌胎儿的验证。
Clinical and diagnostic laboratory immunology Pub Date : 2005-11-01 DOI: 10.1128/CDLI.12.11.1261-1268.2005
J Devenish, B Brooks, K Perry, D Milnes, T Burke, D McCabe, S Duff, C L Lutze-Wallace
{"title":"Validation of a monoclonal antibody-based capture enzyme-linked immunosorbent assay for detection of Campylobacter fetus.","authors":"J Devenish,&nbsp;B Brooks,&nbsp;K Perry,&nbsp;D Milnes,&nbsp;T Burke,&nbsp;D McCabe,&nbsp;S Duff,&nbsp;C L Lutze-Wallace","doi":"10.1128/CDLI.12.11.1261-1268.2005","DOIUrl":"https://doi.org/10.1128/CDLI.12.11.1261-1268.2005","url":null,"abstract":"<p><p>A monoclonal antibody (MAb)-based antigen capture enzyme-linked immunosorbent assay (ELISA) was compared with the routine culture methodology for the detection of Campylobacter fetus subspecies from bovine and ovine field samples inoculated into Clark's transport enrichment medium (TEM). The work was a collaboration between two different diagnostic laboratories, one in Canada and the other in England. In both labs, TEM samples were incubated for 4 days at 35 degrees C and then tested by culture and ELISA. The ELISA consisted of initial screening with MAb M1825 against C. fetus subspecies core lipopolysaccharide (LPS). All samples positive on ELISA screening were then retested by ELISA with MAb M1825 and MAbs M1177, M1183, and M1194, which recognize serotype A- and/or serotype B-specific C. fetus subspecies LPS epitopes. The Canadian samples consisted of 1,060 preputial washings from 529 bulls, of which 18 were positive by both culture and ELISA and 1,042 were negative by both methods. The English samples consisted of 321 tissue specimens, mostly stomach contents and placentas, from 190 aborted ovine and bovine fetuses. A total of 262 samples were negative by culture and ELISA, 52 samples were positive by culture and ELISA, and 7 samples were culture negative but ELISA positive. The results for all 70 culture-positive isolates were confirmed by conventional biochemical methods as C. fetus subsp. fetus, with 39 presumptively identified by the ELISA as serotype A and 30 presumptively identified as serotype B and with one sample containing isolates presumptively identified as serotype A and serotype B. A receiver operating characteristic analysis of the combined ELISA data from both countries resulted in an area under the curve of 0.997, with a sensitivity of 100% and a specificity of 99.5% relative to the results of culture. The data confirm that this ELISA method can be used as an excellent test for the screening of field samples in TEM for the presence of C. fetus subspecies.</p>","PeriodicalId":72602,"journal":{"name":"Clinical and diagnostic laboratory immunology","volume":"12 11","pages":"1261-8"},"PeriodicalIF":0.0,"publicationDate":"2005-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1128/CDLI.12.11.1261-1268.2005","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"25678400","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 29
Detection of Babesia canis rossi, B. canis vogeli, and Hepatozoon canis in dogs in a village of eastern Sudan by using a screening PCR and sequencing methodologies. 利用筛选PCR和测序方法在苏丹东部一个村庄的狗中检测犬罗西巴贝斯虫、沃格利犬巴贝斯虫和犬肝虫。
Clinical and diagnostic laboratory immunology Pub Date : 2005-11-01 DOI: 10.1128/CDLI.12.11.1343-1346.2005
Maremichi Oyamada, Bernard Davoust, Mickaël Boni, Jacques Dereure, Bruno Bucheton, Awad Hammad, Kazuhito Itamoto, Masaru Okuda, Hisashi Inokuma
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引用次数: 115
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