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dc.contributor.authorShahzad, Khurram-
dc.contributor.authorKim, Dong-Hyun-
dc.contributor.authorKang, Min-Jung-
dc.date.accessioned2024-01-21T00:05:53Z-
dc.date.available2024-01-21T00:05:53Z-
dc.date.created2021-09-02-
dc.date.issued2007-11-
dc.identifier.issn0009-9120-
dc.identifier.urihttps://pubs.kist.re.kr/handle/201004/134017-
dc.description.abstractObjectives: The principal objective of this study was to compare the analytical performance of the Elecsys2010 (Roche Diagnostics) system with the IMx (Abbott laboratories) system for beta-hCG assay in order to assess its possible utility as a confirmation test for the quantitative measurement of beta-hCG in urine for doping control purposes. Design and methods: Urine samples with spiked standard known concentrations of beta-hCG and different urine samples from athletes were used in order to determine the calibration curve stability and linearity, detection limit, total, within-run and between-run precision, and method comparison for the IMx and Elecsys2010 systems for beta-hCG assay, along with the stability of samples, at room temperature and at 4 degrees C. Results: The IMx assay was linear up to 500 IU/L, whereas the Elecsys2010 assay was linear up to 1000 IU/L. The detection limit for the IMx and Elecsys2010 systems were 0.75 IU/L and 0.25 IU/L, respectively. The total precision of the IMx and Elecsys2010 systems were <= 5% for beta-hCG concentrations ranging from 20 to 900 IU/L and from 6.67 to 55.2 IU/L, respectively. The within-run precision tests for the IMx and Elecsys2010 systems yielded CV results of 2-3% and 3-4% respectively, while the between-run precision for the Elecsys2010 was less than 4%, whereas that of IMx was 9-16%. Regression analysis with spiked urine samples yielded the following: slope (SD) 0.7104 (0.003) and y-intercept (SD) -0.4286 (1.397) (Sy.x=2.328; r=0.9999; n=5), whereas regression analysis using the athletes&apos; urine samples yielded the following results: slope (SD) 0.3692 (0.003) and y-intercept (SD) 0.0016 (0.003) (Sy.x=0.0096; r=0.9924; n= 100). Sample stability studies evidenced a nonsignificant effect at 4 degrees C and room temperature (25 degrees C) for up to I month. Conclusions: For doping control, the IMx and Elecys2010 may be used to screen and confirm the presence of beta-hCG in urine of athletes, respectively. Additional studies are needed to verify this finding. This study also underscores the need for beta-hCG assays standardization for doping control. (C) 2007 The Canadian Society of Clinical Chemists. Published by Elsevier Inc. All rights reserved.-
dc.languageEnglish-
dc.publisherElsevier BV-
dc.titleAnalytic evaluation of the beta-human chorionic gonadotropin assay on the Abbott IMx and Elecsys2010 for its use in doping control-
dc.typeArticle-
dc.identifier.doi10.1016/j.clinbiochem.2007.06.015-
dc.description.journalClass1-
dc.identifier.bibliographicCitationClinical Biochemistry, v.40, no.16-17, pp.1259 - 1265-
dc.citation.titleClinical Biochemistry-
dc.citation.volume40-
dc.citation.number16-17-
dc.citation.startPage1259-
dc.citation.endPage1265-
dc.description.isOpenAccessN-
dc.description.journalRegisteredClassscie-
dc.description.journalRegisteredClassscopus-
dc.identifier.wosid000250605200013-
dc.identifier.scopusid2-s2.0-35348904056-
dc.relation.journalWebOfScienceCategoryMedical Laboratory Technology-
dc.relation.journalResearchAreaMedical Laboratory Technology-
dc.type.docTypeArticle-
dc.subject.keywordPlusMISUSE-
dc.subject.keywordPlusSERUM-
dc.subject.keywordPlusIMMUNOASSAYS-
dc.subject.keywordPlusTESTOSTERONE-
dc.subject.keywordPlusPERFORMANCE-
dc.subject.keywordPlusHORMONES-
dc.subject.keywordPlusVALUES-
dc.subject.keywordPlusURINE-
dc.subject.keywordPlusSPORT-
dc.subject.keywordAuthorbeta-hCG-
dc.subject.keywordAuthorIMx-
dc.subject.keywordAuthorelecsys2010-
dc.subject.keywordAuthordoping control-
dc.subject.keywordAuthormethod evaluation-
dc.subject.keywordAuthorconfirmation method-
dc.subject.keywordAuthornon-isotopic immunoassay-
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