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Hum Exp Toxicol. 2011 Sep;30(9):1246-55. doi: 10.1177/0960327110387456. Epub 2010 Oct 18.

Protective effects of Chinese and Brazilian propolis treatment against hepatorenal lesion in diabetic rats.

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1
College of Animal Sciences, Zhejiang University, Hangzhou, China.

Abstract

Diabetes mellitus promoted an overproduction of free radicals and an increased incidence of both diabetic nephropathy and liver disease. In this report, we evaluated the effects of Chinese and Brazilian propolis on streptozotocin-induced hepatorenal injury in rats. The results demonstrated that Chinese propolis-treated rats had a 7.4% reduction in the glycated hemoglobin (HbAlc) level compared with untreated diabetic rats. Additionally, Chinese propolis induced an increase in the serum superoxide dismutase (SOD) level significantly while Brazilian propolis raised serum SOD and reduced level of malonaldehyde (MDA) and nitric synthetase (NOS). Of the measurable decrease in serum alanine transaminase (ALT), aspartate transaminase (AST) and microalbuminuria demonstrated the propolis-mediated improvement of hepatorenal function, which was further confirmed by histological examination. We also observed that Chinese and Brazilian propolis increased hepatorenal glutathione peroxidase (GSH-px) level and inhibited MDA production significantly. These results suggested that propolis may prevent hepatorenal injury by inhibiting lipid peroxidation and enhancing the activities of antioxidant enzymes.

PMID:
20956460
DOI:
10.1177/0960327110387456
[Indexed for MEDLINE]
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