Abstract：
:Three commercial second generation enzyme immunoassays (EIA) and a second generation immunoblot assay (RIBA-II) for detecting antibodies to hepatitis C virus (HCV) were evaluated in a study of confirmatory testing using sera referred by six Regional Blood Transfusion Centres (RTC). Of a total of 490 samples, 203 were negative in the same EIA as that used by the RTC and of these 162 were negative in all three EIAs. The RIBA-II immunoblot test was performed on all samples and 359 were negative, 69 were indeterminate and 62 reactive. We found a close relationship between RIBA-II reactivity, the reactivity of a sample in all three EIAs and the mean of the test/cut-off ratios of all three EIAs performed on that sample. When this was evaluated by PCR for HCV RNA, we found an association between the mean test/cut-off ratio and the probability that an immunoblot reactive or indeterminate sample was PCR positive. A mean ratio of greater than 5.0 in a RIBA-II reactive sample was associated with a 100% probability (16/16 tested) of being PCR positive. These observations should be extended by testing RIBA-II negative samples by PCR so that simplified algorithms for anti-HCV testing can be developed.
journal_name
J Immunol Methodsjournal_title
Journal of immunological methodsauthors
Craske J,Paver WK,Farmer Ddoi
10.1016/0022-1759(93)90182-7subject
Has Abstractpub_date
1993-04-02 00:00:00pages
227-35issue
2eissn
0022-1759issn
1872-7905pii
0022-1759(93)90182-7journal_volume
160pub_type
杂志文章,多中心研究abstract：:We describe optimal conditions for protein labeling with a new fluorescent probe, 4,7-bis-(chlorosulfophenyl)-1,10-phenanthroline-2,9-dicarboxylic acid (BCPDA). The labeled proteins are suitable for time-resolved fluorometric applications because BCPDA forms fluorescent complexes with Eu3+ which exhibit very long fluo...
journal_title：Journal of immunological methods
pub_type： 杂志文章
doi：10.1016/0022-1759(88)90031-2
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abstract：:Traditionally, the identification and quantification of eosinophils in inflammatory tissues and exudates has been primarily based upon morphologic criteria and manual counting. In this study, we describe a new flow cytometry-based assay to enumerate eosinophils present in murine bronchoalveolar lavage fluid (BAL) and ...
journal_title：Journal of immunological methods
pub_type： 杂志文章
doi：10.1016/j.jim.2007.07.011
更新日期：2007-10-31 00:00:00
abstract：:A conjugate of 2-aminohexylamino-4-ethylamino-6-isopropylamino-1,3,5-triazine (AHA), a derivative of the herbicide atrazine, with dextran as carrier has been synthesized and used as the coating antigen in ELISA procedures. The quantification of terbutryn, atrazine and prometryn in ELISA formats using monoclonal antibo...
journal_title：Journal of immunological methods
pub_type： 杂志文章
doi：10.1016/0022-1759(92)90100-8
更新日期：1992-07-06 00:00:00
abstract：:The sensitivity of the conventional EA (Fc) rosetting assay for detecting Fc receptors could be significantly increased by coating sheep erythrocytes (SRBC) with high concentrations of a preparation of homogeneous monoclonal IgG2b anti-SRBC antibodies. This was made possible by virtue of the fact that the monoclonal a...
journal_title：Journal of immunological methods
pub_type： 杂志文章
doi：10.1016/0022-1759(80)90218-5
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abstract：:A new adhesion assay was developed that utilizes buoyancy, rather than washing or centrifugation, to remove non-adherent cells. Biotinylated cells were added to wells containing cell monolayers or purified protein substrates. Non-adherent cells were then removed by floatation on a dense Percoll solution. The adherent ...
journal_title：Journal of immunological methods
pub_type： 杂志文章
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更新日期：1995-12-01 00:00:00
abstract：:Cytotoxicity assays are widely used to evaluate the functional activity of NK and T cells against tumour target cells and the release of radioactive sodium chromate from labelled target cells is still the most commonly used marker of target lysis in culture supernatants. We describe here the standardization of a micro...
journal_title：Journal of immunological methods
pub_type： 杂志文章
doi：10.1016/0022-1759(94)90104-x
更新日期：1994-06-24 00:00:00
abstract：:A fluorescence quenching method, using trypan blue, is described for quantifying the ingestion of either glutaraldehyde-fixed sheep red blood cells or antibody coated glutaraldehyde-fixed sheep red blood cells by murine peritoneal macrophages. This method is based on the observations that glutaraldehyde-fixed red bloo...
journal_title：Journal of immunological methods
pub_type： 杂志文章
doi：10.1016/0022-1759(83)90097-2
更新日期：1983-02-25 00:00:00
abstract：:The automated complement fixation system presented in this paper differs from those described by Studievic et al. (1971) and Vargues and Henley (1974). In the one developed here only one sampler is used with a wheel presenting a double row of cups. This system can assay 60 samples per h and can be modified to double t...
journal_title：Journal of immunological methods
pub_type： 杂志文章
doi：10.1016/0022-1759(76)90183-6
更新日期：1976-01-01 00:00:00
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journal_title：Journal of immunological methods
pub_type： 杂志文章
doi：10.1016/0022-1759(88)90421-8
更新日期：1988-04-06 00:00:00
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journal_title：Journal of immunological methods
pub_type： 杂志文章
doi：10.1016/0022-1759(89)90083-5
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journal_title：Journal of immunological methods
pub_type： 杂志文章
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journal_title：Journal of immunological methods
pub_type： 杂志文章
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更新日期：2011-07-29 00:00:00
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journal_title：Journal of immunological methods
pub_type： 杂志文章
doi：10.1016/s0022-1759(00)00269-6
更新日期：2000-11-01 00:00:00
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journal_title：Journal of immunological methods
pub_type： 杂志文章
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journal_title：Journal of immunological methods
pub_type： 杂志文章
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更新日期：2009-07-31 00:00:00
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journal_title：Journal of immunological methods
pub_type： 杂志文章
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journal_title：Journal of immunological methods
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journal_title：Journal of immunological methods
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journal_title：Journal of immunological methods
pub_type： 杂志文章
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journal_title：Journal of immunological methods
pub_type： 杂志文章
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pub_type： 杂志文章
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journal_title：Journal of immunological methods
pub_type： 杂志文章
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journal_title：Journal of immunological methods
pub_type： 杂志文章
doi：10.1016/0022-1759(93)90183-8
更新日期：1993-04-02 00:00:00
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journal_title：Journal of immunological methods
pub_type： 杂志文章
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更新日期：1989-02-24 00:00:00
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journal_title：Journal of immunological methods
pub_type： 杂志文章
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journal_title：Journal of immunological methods
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journal_title：Journal of immunological methods
pub_type： 杂志文章
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journal_title：Journal of immunological methods
pub_type： 杂志文章
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更新日期：1992-04-27 00:00:00
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journal_title：Journal of immunological methods
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更新日期：2005-08-01 00:00:00
