Plasma concentrations of the vasoactive peptide fragments mid-regional pro-adrenomedullin, C-terminal pro-endothelin 1 and copeptin in hemodialysis patients
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Plasma concentrations of the vasoactive peptide fragments mid-regional pro-adrenomedullin, C-terminal pro-endothelin 1 and copeptin in hemodialysis patients : associated factors and prediction of mortality. / Artunc, Ferruh; Nowak, Albina; Mueller, Christian; Breidthardt, Tobias; Twerenbold, Raphael; Wagner, Robert; Peter, Andreas; Haering, Hans-Ulrich; Ebmeyer, Stefan; Friedrich, Bjoern.
in: PLOS ONE, Jahrgang 9, Nr. 1, 2014, S. e86148.Publikationen: SCORING: Beitrag in Fachzeitschrift/Zeitung › SCORING: Zeitschriftenaufsatz › Forschung › Begutachtung
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TY - JOUR
T1 - Plasma concentrations of the vasoactive peptide fragments mid-regional pro-adrenomedullin, C-terminal pro-endothelin 1 and copeptin in hemodialysis patients
T2 - associated factors and prediction of mortality
AU - Artunc, Ferruh
AU - Nowak, Albina
AU - Mueller, Christian
AU - Breidthardt, Tobias
AU - Twerenbold, Raphael
AU - Wagner, Robert
AU - Peter, Andreas
AU - Haering, Hans-Ulrich
AU - Ebmeyer, Stefan
AU - Friedrich, Bjoern
PY - 2014
Y1 - 2014
N2 - Vasopressin, endothelin and adrenomedullin are vasoactive peptides that regulate vascular tone and might play a role in hypertensive diseases. Recently, laboratory assays have been developed to measure stable fragments of vasopressin, endothelin and adrenomedullin. Little is known about their diagnostic and prognostic value in hemodialysis patients. In this study, we measured the plasma concentration of copeptin, mid-regional-pro-adrenomedullin (MR-pro-ADM) and C-terminal pro-endothelin 1 (CT-pro-ET1) in stable ambulatory hemodialysis patients (n = 239) and investigated their associations with clinical factors and mortality. In all patients enrolled, the plasma concentrations of copeptin, MR-pro-ADM and CT-pro-ET1 were largely elevated with a median concentration of 132 pmol/L (interquartile range [IQR] 78-192) for copeptin, 1.26 nmol/L (IQR 1.02-1.80) for MR-pro-ADM and 149 pmol/L (IQR 121-181) for CT-pro-ET1. The plasma concentrations of all vasoactive peptide fragments correlated with time on dialysis and plasma β2-microglobulin concentration and were negatively correlated to residual diuresis. The plasma concentration of MR-pro-ADM was a strong predictor of all-cause (univariate hazard ratio for a 10-fold increase 9.94 [3.14;32], p<0.0001) and cardiovascular mortality (hazard ratio 34.87 [5.58;217], p = 0.0001) within a 3.8-year follow-up. The associations remained stable in models adjusted for dialysis specific factors and were attenuated in a full model adjusted for all prognostic factors. Plasma copeptin concentration was weakly associated with cardiovascular mortality (only in univariate analysis) and CT-pro-ET1 was not associated with mortality at all. In conclusion, vasoactive peptide fragments are elevated in hemodialysis patients because of accumulation and, most likely, increased release. Increased concentrations of MR-pro-ADM are predictive of mortality.
AB - Vasopressin, endothelin and adrenomedullin are vasoactive peptides that regulate vascular tone and might play a role in hypertensive diseases. Recently, laboratory assays have been developed to measure stable fragments of vasopressin, endothelin and adrenomedullin. Little is known about their diagnostic and prognostic value in hemodialysis patients. In this study, we measured the plasma concentration of copeptin, mid-regional-pro-adrenomedullin (MR-pro-ADM) and C-terminal pro-endothelin 1 (CT-pro-ET1) in stable ambulatory hemodialysis patients (n = 239) and investigated their associations with clinical factors and mortality. In all patients enrolled, the plasma concentrations of copeptin, MR-pro-ADM and CT-pro-ET1 were largely elevated with a median concentration of 132 pmol/L (interquartile range [IQR] 78-192) for copeptin, 1.26 nmol/L (IQR 1.02-1.80) for MR-pro-ADM and 149 pmol/L (IQR 121-181) for CT-pro-ET1. The plasma concentrations of all vasoactive peptide fragments correlated with time on dialysis and plasma β2-microglobulin concentration and were negatively correlated to residual diuresis. The plasma concentration of MR-pro-ADM was a strong predictor of all-cause (univariate hazard ratio for a 10-fold increase 9.94 [3.14;32], p<0.0001) and cardiovascular mortality (hazard ratio 34.87 [5.58;217], p = 0.0001) within a 3.8-year follow-up. The associations remained stable in models adjusted for dialysis specific factors and were attenuated in a full model adjusted for all prognostic factors. Plasma copeptin concentration was weakly associated with cardiovascular mortality (only in univariate analysis) and CT-pro-ET1 was not associated with mortality at all. In conclusion, vasoactive peptide fragments are elevated in hemodialysis patients because of accumulation and, most likely, increased release. Increased concentrations of MR-pro-ADM are predictive of mortality.
KW - Adrenomedullin/blood
KW - Aged
KW - Cause of Death
KW - Comorbidity
KW - Endothelin-1/blood
KW - Female
KW - Follow-Up Studies
KW - Glycopeptides/blood
KW - Humans
KW - Kidney Diseases/blood
KW - Male
KW - Middle Aged
KW - Peptide Fragments/blood
KW - Prognosis
KW - Prospective Studies
KW - Protein Precursors/blood
KW - Renal Dialysis
U2 - 10.1371/journal.pone.0086148
DO - 10.1371/journal.pone.0086148
M3 - SCORING: Journal article
C2 - 24465926
VL - 9
SP - e86148
JO - PLOS ONE
JF - PLOS ONE
SN - 1932-6203
IS - 1
ER -
