Abstract
diabetic foot ulcer of rats induced by streptozotosin,and to find the significance of free radical scavenging and the antioxidative function.Methods A total of 60 male wistar rats were randomized into the control group (20 rats) and diabetic model group (40 rats).The model group was induced to diabetic foot ulcer using streptozotosin tail intravenous injection,and the control group was injected equal citric acid-citric acid sodium buffer fluid instead.A rectangular full-thickness skin of dorsum of foot in the two groups was removed from model rats to construct diabetic foot ulcer.Serum zinc levels of the two groups were monitored,and immunohistochemical technique was used to detect the MT expression.Results Serum zinc levels in the model group( 1.17 ±0.09) was significantly lower than control group( 1.48 ±0.07),and the difference was statistically significant ( t =12.94,P ＜0.01 ).The MT expression in control group was low,while it significantly increased in diabetic model group,and the difference was statistically significant ( x2 =12.78,P ＜ 0.01 ).Conclusions The zinc levels and MT expression of diabetic foot ulcer rats may be associated with free radical scavenging and the antioxidative function.The increased expression of MT may play an important role in preventing the further development of diabetic foot ulcer disease. Key words: Diabetic foot/ME ; Zinc/ME ; Metallothionein/ME
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