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Objective.To explore the expression characteristic of fibronectin gene in hypertrophic scars and diabetic ulcer tissues.Methods.The biopsies from normal skins,hypertrophic scars and diabetic foot ulcers were taken.The technique of quantitative polymerase chain reaction (PCR) was used to evaluate the gene expression of fibronectin in the above biopsies.Results.Fibronectin gene expression was enhanced in hypertrophic scars and decreased in diabetic foot ulcers compared with that in normal skins.Quantitative comparison showed about 2 fold increase of fibronectin mRNA level in hypertrophic scars and about 3 fold decrease of fibronectin mRNA level in diabetic ulcers as compared with that in normal skins.Conclusions.Fibronectin gene expression is influenced by the tissue environment.Different expression and synthesis of fibronectin may cause different outcomes in wound healing.
