Comparison of three methods to diagnose syphilis, CLIA, TRUST and TPPA
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Department of Nuclear Medicine, the Second Affiliated Hospital of Fujian Medical University, Quanzhou 362000, China
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Corresponding author:
Jinshun Zha, zjs630805@126.com
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Received Date:
2014-10-16
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Abstract
Objective To compare the strengths and weaknesses of chemiluminescence immune assay(CLIA), treponema pallidum particle agglutination test(TPPA), toluidine red unheated serum test(TRUST)in syphilis testing, and choose the appropriate method for clinical syphilis testing. Methods A total of 446 syphilitic and 398 health control were enrolled in this subject. Three kinds of syphilis testing methods(CLIA, TRUST, TPPA) were used to detect treponema pallidum, and the difference and clinical practice of these methods were compared. Results The detection sensitivity of CLIA, TRUST and TPPA were 98.2%, 80.3% and 94.8%, respectively; While the specificity of CLIA, TRUST and TPPA were 98.5%, 76.4% and 99.7%, respectively. The false positive rate of CLIA, TRUST and TPPA in control group were 1.5%, 23.6% and 0.2%, respectively. Conclusions Compared with TPPA, the sensitivity of CLIA were higher. CLIA was well reproducible and easy to operate, which can be used for syphilis screening. And the positive samples should be combined with TPPA results and clinical symptoms to diagnose TP. The TRUST method is mainly used to evaluate clinical effects of syphilis.
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Proportional views
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