Deprecated: Implicit conversion from float 213.6 to int loses precision in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 534
Deprecated: Implicit conversion from float 213.6 to int loses precision in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 534
Deprecated: Implicit conversion from float 213.6 to int loses precision in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 534
Deprecated: Implicit conversion from float 213.6 to int loses precision in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 534
Deprecated: Implicit conversion from float 213.6 to int loses precision in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 534
Deprecated: Implicit conversion from float 213.6 to int loses precision in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 534
Deprecated: Implicit conversion from float 213.6 to int loses precision in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 534
Deprecated: Implicit conversion from float 213.6 to int loses precision in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 534
Deprecated: Implicit conversion from float 247.2 to int loses precision in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 534
Deprecated: Implicit conversion from float 247.2 to int loses precision in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 534
Deprecated: Implicit conversion from float 247.2 to int loses precision in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 534
Deprecated: Implicit conversion from float 247.2 to int loses precision in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 534
Deprecated: Implicit conversion from float 247.2 to int loses precision in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 534
Deprecated: Implicit conversion from float 247.2 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\27187471
.jpg): Failed to open stream: No such file or directory in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 117 Toxins+(Basel)
2016 ; 8
(5
): ä Nephropedia Template TP
gab.com Text
Twit Text FOAVip
Twit Text #
English Wikipedia
Determination of Asymmetric and Symmetric Dimethylarginine in Serum from Patients
with Chronic Kidney Disease: UPLC-MS/MS versus ELISA
#MMPMID27187471
Boelaert J
; Schepers E
; Glorieux G
; Eloot S
; Vanholder R
; Lynen F
Toxins (Basel)
2016[May]; 8
(5
): ä PMID27187471
show ga
Asymmetric dimethylarginine (ADMA), an endogenous inhibitor of nitric oxide (NO)
synthesis, and its structural isomer symmetric dimethylarginine (SDMA) are uremic
toxins accumulating in chronic kidney disease (CKD) patients. The objective of
this study was to develop and validate a robust UPLC-MS/MS method for the
simultaneous determination of ADMA and SDMA in human serum. Chromatographic
separation after butyl ester derivatization was achieved on an Acquity UPLC BEH
C18 column, followed by tandem mass spectrometric detection. After validation,
the applicability of the method was evaluated by the analysis of serum samples
from 10 healthy controls and 77 CKD patients on hemodialysis (CKD5HD). Both ADMA
(0.84 ± 0.19 µM vs. 0.52 ± 0.07 µM) and SDMA concentrations (2.06 ± 0.82 µM vs.
0.59 ± 0.13 µM) were significantly (p < 0.001) elevated in CKD5HD patients
compared to healthy controls. In general, low degrees of protein binding were
found for both ADMA and SDMA. In addition, an established commercially available
ELISA kit was utilized on the same samples (n = 87) to compare values obtained
both with ELISA and UPLC-MS/MS. Regression analysis between these two methods was
significant (p < 0.0001) but moderate for both ADMA (R = 0.78) and SDMA (R =
0.72).