背景：研究显示，血竭治疗皮肤压疮、烧烫伤、溃疡等具有显著疗效。 目的：观察血竭对组织工程皮肤移植大鼠血管内皮细胞生长因子、表皮生长因子、神经肽P物质和羟脯氨酸的影响，验证血竭促进组织工程皮肤修复创面的作用。 方法：制备组织工程皮肤移植大鼠模型，将大鼠随机分为模型对照组、血竭外用组、血竭内服组、血竭外用加内服组，治疗组分别采用药物外敷、单纯口服[0.1 g/(kg•d)]、外敷加口服治疗，7 d后检测皮肤组织中血管内皮细胞生长因子、表皮生长因子、P物质和羟脯氨酸的表达。 结果与结论：①与模型对照组比较，血竭治疗组皮肤组织中血管内皮细胞生长因子、表皮生长因子和羟脯氨酸表达水平显著提高(P<0.01或P<0.05)，P物质含量无改变(P>0.05)。②结果说明，血竭可通过上调组织工程皮肤移植模型大鼠血管内皮细胞生长因子、表皮生长因子和羟脯氨酸的表达，促进组织工程皮肤对创面的修复作用。%BACKGROUND:Increasing evidence suggests that Sanguis draxonis is of great significance for treating pressure sores, burns and ulcers. OBJECTIVE:To observe the influences of Sanguis draxonis on vascular endothelial growth factor, epidermal growth factor, substance P and hydroxyproline in rats undergoing tissue-engineered skin transplantation and to verify its promotion of wound repair. METHODS:The tissue-engineered skin transplantation model of rats were established. Rats in treatment groups were given external application, single oral use of 0.1 g/(kg·d) Sanguis draxonis and combined use, respectively. No treatment was given in control group. After continuous treatment for 7 days, the expression levels of vascular endothelial growth factor, epidermal growth factor, substance P and hydroxyproline in skin tissue were determined. RESULTS AND CONCLUSION:Compared with the control group, the levels of vascular endothelial growth factor, epidermal growth factor, and hydroxyproline were significantly increased (P<0.05 or P<0.01), while substance P had no change in the treatment groups (P>0.05). These results demonstrate that Sanguis draxonis can promote tissue-engineered skin to repair skin wound by upregulating the expression levels of vascular endothelial growth factor, epidermal growth factor, and hydroxyproline.
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