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2017 ; 23
(ä): 5472-5479
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Proton Nuclear Magnetic Resonance (¹H-NMR)-Based Metabolomic Evaluation of Human
Renal Allografts from Donations After Circulatory Death
#MMPMID29149095
Wang Z
; Yang H
; Zhao C
; Wei J
; Wang J
; Han Z
; Tao J
; Xu Z
; Ju X
; Tan R
; Gu M
Med Sci Monit
2017[Nov]; 23
(ä): 5472-5479
PMID29149095
show ga
BACKGROUND Delayed graft function (DGF) is a common complication that impairs
allograft function after kidney transplantation. However, the mechanism of DGF
remains unclear. Nuclear magnetic resonance (NMR)-based analysis has been widely
used in recent times to assess changes in metabolite levels. MATERIAL AND METHODS
Samples of perfusate from allografts donated after circulatory death were
collected prior to transplantation, during static cold storage. ¹H-NMR-based
metabolomics combined with the statistical methods, orthogonal partial
least-squares discriminant analysis (OPLS-DA), and principle-component analysis
(PCA), were employed to test different levels of metabolites between the
allografts that exhibited DGF and those that exhibited immediate graft function
(IGF). RESULTS The study population consisted of 36 subjects, 11 with DGF and 25
with IGF. Of the 37 detected and identified metabolites, a-glucose and citrate
were significantly elevated in the perfusate of DGF allografts, and taurine and
betaine were significantly decreased. CONCLUSIONS ¹H-NMR analysis of DGF and IGF
perfusates revealed some significant differences in their metabolite profiles,
which may help explain the mechanisms of kidney ischemia-reperfusion injury and
DGF.