Deprecated: Implicit conversion from float 211.6 to int loses precision in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 534
Deprecated: Implicit conversion from float 211.6 to int loses precision in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 534
Deprecated: Implicit conversion from float 211.6 to int loses precision in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 534
Deprecated: Implicit conversion from float 211.6 to int loses precision in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 534
Deprecated: Implicit conversion from float 211.6 to int loses precision in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 534
Deprecated: Implicit conversion from float 211.6 to int loses precision in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 534
Deprecated: Implicit conversion from float 245.2 to int loses precision in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 534
Deprecated: Implicit conversion from float 245.2 to int loses precision in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 534
Deprecated: Implicit conversion from float 245.2 to int loses precision in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 534
Deprecated: Implicit conversion from float 245.2 to int loses precision in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 534
Warning: imagejpeg(C:\Inetpub\vhosts\kidney.de\httpdocs\phplern\26749312
.jpg): Failed to open stream: No such file or directory in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 117 Calcif+Tissue+Int
2016 ; 98
(6
): 546-55
Nephropedia Template TP
gab.com Text
Twit Text FOAVip
Twit Text #
English Wikipedia
How Accurate is Your Sclerostin Measurement? Comparison Between Three
Commercially Available Sclerostin ELISA Kits
#MMPMID26749312
Piec I
; Washbourne C
; Tang J
; Fisher E
; Greeves J
; Jackson S
; Fraser WD
Calcif Tissue Int
2016[Jun]; 98
(6
): 546-55
PMID26749312
show ga
Sclerostin, bone formation antagonist is in the spotlight as a potential
biomarker for diseases presenting with associated bone disorders such as chronic
kidney disease (CDK-MBD). Accurate measurement of sclerostin is therefore
important. Several immunoassays are available to measure sclerostin in serum and
plasma. We compared the performance of three commercial ELISA kits. We measured
sclerostin concentrations in serum and EDTA plasma obtained from healthy young
(18-26 years) human subjects using kits from Biomedica, TECOmedical and from R&D
Systems. The circulating sclerostin concentrations were systematically higher
when measured with the Biomedica assay (serum: 35.5 ± 1.1 pmol/L; EDTA:
39.4 ± 2.0 pmol/L; mean ± SD) as compared with TECOmedical (serum:
21.8 ± 0.7 pmol/L; EDTA: 27.2 ± 1.3 pmol/L) and R&D Systems (serum:
7.6 ± 0.3 pmol/L; EDTA: 30.9 ± 1.5 pmol/L). We found a good correlation between
the assay for EDTA plasma (r > 0.6; p < 0.001) while in serum, only measurements
obtained using TECOmedical and R&D Systems assays correlated significantly
(r = 0.78; p < 0.001). There was no correlation between matrices results when
using the Biomedica kit (r = 0.20). The variability in values generated from
Biomedica, R&D Systems and TECOmedical assays raises questions regarding the
accuracy and specificity of the assays. Direct comparison of studies using
different kits is not possible and great care should be given to measurement of
sclerostin, with traceability of reagents. Standardization with appropriate
material is required before different sclerostin assays can be introduced in
clinical practice.