Abstract.
Objective:
The effects of fenofibrate on the kidneys of diabetic rats were investigated by measuring the inflammatory responses associated with transcription factor nuclear factor kappa-B (NF-κB) pathway.
Methods:
Male Wistar rats were randomly divided into 3 groups: normal control, diabetes control and diabetes + fenofibrate (10 in each group). The expression of NF-κB p65, plasminogen activator inhibitor-1 (PAI-1), and intercellular adhesion molecule-1 (ICAM-1) in renal cortex was detected by Western blot, RT-PCR, and immunohistochemistry, respectively. Blood lipid profiles, glucose, and urine albumin were measured as well.
Results:
The expression of NF-kB p65, PAI-1, and ICAM-1 was significantly higher in the diabetes control than those in the normal control, and treatment with fenofibrate inhibited the increased expression of these factors in kidneys by 48.18 %, 35.04 %, and 26.41 %, respectively when compared with the diabetes control, although they were still higher in diabetes + fenofibrate than those in the normal control. Correspondingly, the profiles of lipid were significantly elevated in the diabetes control compared with the normal control, and decreased significantly in diabetes + fenofibrate.
Conclusions:
Fenofibrate exhibited a downregulating effect on the NF-κB pathway in diabetic kidneys, implying that fenofibrate could be a potential treatment for diabetic nephropathy.
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Received 19 November 2006; returned for revision 19 February 2007; received from final revision 5 September 2007; accepted by S. Stimpson 7 October 2007
L. Chen and J. Zhang contributed equally to this work
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Chen, L., Zhang, J., Zhang, Y. et al. Improvement of inflammatory responses associated with NF-κB pathway in kidneys from diabetic rats. Inflamm. res. 57, 199–204 (2008). https://doi.org/10.1007/s00011-006-6190-z
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DOI: https://doi.org/10.1007/s00011-006-6190-z