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2016 ; 6
(ä): 22151
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An integrated lipidomics and metabolomics reveal nephroprotective effect and
biochemical mechanism of Rheum officinale in chronic renal failure
#MMPMID26903149
Zhang ZH
; Vaziri ND
; Wei F
; Cheng XL
; Bai X
; Zhao YY
Sci Rep
2016[Feb]; 6
(ä): 22151
PMID26903149
show ga
Chronic renal failure (CRF) is a major public health problem worldwide. Earlier
studies have revealed salutary effects of rhubarb extracts in CRF. In this study,
we employed lipidomic and metabolomic approaches to identify the plasma
biomarkers and to determine the effect of treatment with petroleum ether, ethyl
acetate and n-butanol extracts of rhubarb in a rat model of CRF with
adenine-induced chronic tubulointerstitial nephropathy. In addition, clinical
biochemistry, histological evaluation and pro-fibrotic protein expression were
analyzed. Significant changes were found between the CRF and control groups
representing characteristic phenotypes of rats with CRF. Treatment with the three
rhubarb extracts improved renal injury and dysfunction, either fully or partially
reversed the plasma metabolites abnormalities and attenuated upregulation of
pro-fibrotic proteins including TGF-?1, ?-SMA, PAI-1, CTGF, FN and collagen-1.
The nephroprotective effect of ethyl acetate extract was better than other
extracts. The differential metabolites were closely associated with
glycerophospholipid, fatty acid and amino acid metabolisms. The results revealed
a strong link between renal tubulointerstitial fibrosis and glycerophospholipid
metabolism and L-carnitine metabolism in the development of CRF. Amelioration of
CRF with the three rhubarb extracts was associated with the delayed development
and/or reversal the disorders in key metabolites associated with adenine-induced
CRF.