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2015 ; 16
(9
): 20595-608
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gab.com Text
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English Wikipedia
Exogenous Carbon Monoxide Decreases Sepsis-Induced Acute Kidney Injury and
Inhibits NLRP3 Inflammasome Activation in Rats
#MMPMID26334271
Wang P
; Huang J
; Li Y
; Chang R
; Wu H
; Lin J
; Huang Z
Int J Mol Sci
2015[Aug]; 16
(9
): 20595-608
PMID26334271
show ga
Carbon monoxide (CO) has shown various physiological effects including
anti-inflammatory activity in several diseases, whereas the therapeutic efficacy
of CO on sepsis-induced acute kidney injury (AKI) has not been reported as of
yet. The purpose of the present study was to explore the effects of exogenous CO
on sepsis-induced AKI and nucleotide-binding domain-like receptor protein 3
(NLRP3) inflammasome activation in rats. Male rats were subjected to cecal
ligation and puncture (CLP) to induce sepsis and AKI. Exogenous CO delivered from
CO-releasing molecule 2 (CORM-2) was used intraperitoneally as intervention after
CLP surgery. Therapeutic effects of CORM-2 on sepsis-induced AKI were assessed by
measuring serum creatinine (Scr) and blood urea nitrogen (BUN), kidney histology
scores, apoptotic cell scores, oxidative stress, levels of cytokines TNF-? and
IL-1?, and NLRP3 inflammasome expression. CORM-2 treatment protected against the
sepsis-induced AKI as evidenced by reducing serum Scr/BUN levels, apoptotic cells
scores, increasing survival rates, and decreasing renal histology scores.
Furthermore, treatment with CORM-2 significantly reduced TNF-? and IL-1? levels
and oxidative stress. Moreover, CORM-2 treatment significantly decreased NLRP3
inflammasome protein expressions. Our study provided evidence that CORM-2
treatment protected against sepsis-induced AKI and inhibited NLRP3 inflammasome
activation, and suggested that CORM-2 could be a potential therapeutic candidate
for treating sepsis-induced AKI.