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2015 ; 21
(ä): 2886-92
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Renal Protective Effect of Probucol in Rats with Contrast-Induced Nephropathy and
its Underlying Mechanism
#MMPMID26408630
Wang N
; Wei RB
; Li QP
; Yang X
; Li P
; Huang MJ
; Wang R
; Cai GY
; Chen XM
Med Sci Monit
2015[Sep]; 21
(ä): 2886-92
PMID26408630
show ga
BACKGROUND: Contrast-induced nephropathy (CIN) refers to acute renal damage that
occurs after the use of contrast agents. This study investigated the renal
protective effect of probucol in a rat model of contrast-induced nephropathy and
the mechanism of its effect. MATERIAL AND METHODS: Twenty-eight Wistar rats were
randomly divided into the control group, model group, N-acetylcysteine(NAC)
group, and probucol group. We used a rat model of iopromide-induced CIN. One day
prior to modeling, the rats received gavage. At 24 h after the modeling, blood
biochemistry and urine protein were assessed. Malondialdehyde (MDA) and
superoxide dismutase (SOD) were measured in renal tissue. Kidney sections were
created for histopathological examination. RESULTS: The model group of rats
showed significantly elevated levels of blood creatinine, urea nitrogen, 24-h
urine protein, histopathological scores, and parameters of oxidative stress
(P<0.05). Both the NAC and probucol groups demonstrated significantly lower Scr,
BUN, and urine protein levels compared to the model group (P<0.05), with no
significant difference between these 2 groups. The NAC group and the probucol
group had significantly lower MDA and higher SOD than the model group at 24 h
after modeling (P<0.05). The 8-OHdG-positive tubule of the probucol group and NAC
group were significantly lower than those of the model group (p=0.046, P=0.0008),
with significant difference between these 2 groups (P=0.024). CONCLUSIONS:
Probucol can effectively reduce kidney damage caused by contrast agent. The
underlying mechanism may be that probucol accelerates the recovery of renal
function and renal pathology by reducing local renal oxidative stress.