Laboratory Evaluation of Bone Metabolism Index Using Elecsys 2010

Autor: Jong-Won Kim, Soo-Youn Lee, Jung Ho Suk, Eun Hae Cho
Rok vydání: 2006
Předmět:
Zdroj: Annals of Laboratory Medicine. 26:146-152
ISSN: 2234-3814
2234-3806
DOI: 10.3343/kjlm.2006.26.3.146
Popis: Background : Bone markers can provide a prognostic information about the risk of osteoporotic fracture and are useful tools for monitoring the efficacy of antiresorptive therapy. We evaluated the analytical performance of the bone markers of Elecsys 2010 (Roche Diagnostics Corp., Indianapolis, USA). Methods : We evaluated the analytical performance of the Elecsys 2010 for serum parathyroid hormone (PTH), osteocalcin, and serum bone-derived degradation products of type I collagen C-telopeptide (S-CTX) using control material and patients' specimens. For the comparison studies, an immunoradiometric assay was used for PTH and an ELISA for serum osteocalcin and serum bone-derived degradation products of type I collagen N-telopeptide (S-NTX). We established the reference intervals of S-CTX and serum osteocalcin by analyzing 4569 Korean healthy subjects according to sex and age. Results : Within-run and total CV of most items were below 5% except S-CTX low level (5.42%). Elecsys 2010 showed a good linearity (r0.99, P
Databáze: OpenAIRE