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[Effects of Chinese herbs for replenishing qi and resolving stagnation on transforming growth factor-beta1 of skin ulcers in rats with diabetes].

OBJECTIVE
To explore the effects of Yiqi Huayu Recipe, a compound traditional Chinese herbal medicine for replenishing qi and resolving stagnation, on transforming growth factor-beta1(TGF-beta1) of skin ulcers in rats with diabetes.


METHODS
Sixty rats were randomly divided into six groups, Yiqi Huayu Recipe-treated group, Yiqi (replenishing qi) Recipe-treated group, Huayu (resolving stagnation) Recipe-treated group, basic fibroblast growth factor (bFGF) treated group, untreated group and normal control group. Diabetes was induced by peritoneal injection of streptozotocin and skin ulcers were made by surgery method in rats except for the normal control group. Then the rats were administered with different drugs respectively, and the expression of TGF-beta1 in granulation tissue of the skin ulcers was detected with the methods of Western blotting, image analysis and immunohistochemistry.


RESULTS
The level of TGF-beta1 expression in the untreated group was lower than that in the normal control group (P<0.01); and the level of TGF-beta1 expression in the drug-treated groups was higher than that in the untreated group (P<0.01); and the TGF-beta1 expression in the Yiqi Huayu Recipe-treated group was higher than that in the Yiqi Recipe-treated group, Huayu Recipe-treated group and bFGF-treated group (P<0.05).


CONCLUSION
The replenishing qi and resolving stagnation therapy can control the secretion of TGF-beta1 of the wound in the process of wound healing in the levels of gene and molecule.