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Renal Protective Effect of Probucol in Rats with Contrast-Induced Nephropathy and its Underlying Mechanism.

Wang N, Wei RB, Li QP, Yang X, Li P, Huang MJ, Wang R, Cai GY, Chen XM - Med. Sci. Monit. (2015)

Bottom Line: 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.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.

View Article: PubMed Central - PubMed

Affiliation: Department of Nephrology, Chinese PLA General Hospital, Chinese PLA Institute of Nephrology, State Key Laboratory of Kidney Diseases, National Clinical Research Center for Kidney Diseases, Beijing, China (mainland).

ABSTRACT

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.

No MeSH data available.


Related in: MedlinePlus

Immunohistochemistry of 8-OHdG in rat kidney section after modeling 24 h (×200). (A) Control group; (B) model group; (C) NAC group; (D) probucol group.
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f5-medscimonit-21-2886: Immunohistochemistry of 8-OHdG in rat kidney section after modeling 24 h (×200). (A) Control group; (B) model group; (C) NAC group; (D) probucol group.

Mentions: The conventional ABC method was used to perform 8-OHdG immunohistochemical staining on paraffin sections. As observed under a light microscope, the tubules in the control group presented a very low number of 8-OHdG-positive tubules, and the staining was light. At 24 h after model construction, the 8-OHdG-positive tubule area of the model group was significantly greater than that of the control group (P<0.01), and the positive tubule proportion of the probucol group and NAC group were significantly lower than those of the model group (p=0.046, P=0.0008). Differences were identified between the NAC and probucol groups (P=0.024). The positive tubule proportion of the NAC group was significantly lower than those of the probucol group, as shown in Figures 5 and 6.


Renal Protective Effect of Probucol in Rats with Contrast-Induced Nephropathy and its Underlying Mechanism.

Wang N, Wei RB, Li QP, Yang X, Li P, Huang MJ, Wang R, Cai GY, Chen XM - Med. Sci. Monit. (2015)

Immunohistochemistry of 8-OHdG in rat kidney section after modeling 24 h (×200). (A) Control group; (B) model group; (C) NAC group; (D) probucol group.
© Copyright Policy
Related In: Results  -  Collection

Show All Figures
getmorefigures.php?uid=PMC4588667&req=5

f5-medscimonit-21-2886: Immunohistochemistry of 8-OHdG in rat kidney section after modeling 24 h (×200). (A) Control group; (B) model group; (C) NAC group; (D) probucol group.
Mentions: The conventional ABC method was used to perform 8-OHdG immunohistochemical staining on paraffin sections. As observed under a light microscope, the tubules in the control group presented a very low number of 8-OHdG-positive tubules, and the staining was light. At 24 h after model construction, the 8-OHdG-positive tubule area of the model group was significantly greater than that of the control group (P<0.01), and the positive tubule proportion of the probucol group and NAC group were significantly lower than those of the model group (p=0.046, P=0.0008). Differences were identified between the NAC and probucol groups (P=0.024). The positive tubule proportion of the NAC group was significantly lower than those of the probucol group, as shown in Figures 5 and 6.

Bottom Line: 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.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.

View Article: PubMed Central - PubMed

Affiliation: Department of Nephrology, Chinese PLA General Hospital, Chinese PLA Institute of Nephrology, State Key Laboratory of Kidney Diseases, National Clinical Research Center for Kidney Diseases, Beijing, China (mainland).

ABSTRACT

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.

No MeSH data available.


Related in: MedlinePlus