Effect of vacuum sealing drainage on nerve growth factor and microvessels in chronic wound

doi:10.3969/j.issn.2095-4344.2014.11.002

Abstract

Abstract:

BACKGROUND: With the increase of aging degree, chronic wounds are increasing. There is few method to cure chronic wounds at present, and vacuum sealing drainage has been applied to the clinic.

OBJECTIVE: To investigate the effect of vacuum sealing drainage on the expression of nerve growth factor and the change of microvascular number in the human chronic wounds, and to study the mechanism of accelerating chronic wound healing.

METHODS: Ten patients with chronic wounds were included in this study, including one case of soft tissue defect of chest, one case of osteomyelitis with bone exposure, one case of large area skin defect after amputation stump, two cases of wound infection after skin avulsion injury, two cases of shinbone osteomyelitis, and three cases of postoperative wound infection. The skin around the wounds and granulation tissue within the wounds were collected before vacuum sealing drainage treatment and at 7, 14 days after vacuum sealing drainage treatment. The nerve growth factor expressions and the microvascular number in the wounds were measured by the immunohistochemical technology. The wound healing was also observed.

RESULTS AND CONCLUSION: The nerve growth factor expressions in fibroblasts and vascular endothelial cells at 7 and 14 days after vacuum sealing drainage treatment were significantly higher than that before treatment (P < 0.001). The microvascular number was also increased after vacuum sealing drainage treatment compared with pre-treatment (P < 0.05-0.01). The vacuum sealing drainage treatment reduced necrotic tissue and purulent secretion within the wounds, as well as swelling around the wounds. Simultaneously, granulation tissue gradually became fine granules, bright red, and bleeding easily, thus it is suitable for promoting wound healing.

中国组织工程研究杂志出版内容重点：组织构建；骨细胞；软骨细胞；细胞培养；成纤维细胞；血管内皮细胞；骨质疏松；组织工程

全文链接：

Key words: vacuum sealing drainage, nerve growth factor, microvessel, wound healing, immunohistochemistry

CLC Number:

R318

Qian Xiao-ling, Zhou Xue-qin, Yin Xiao-Li, Yang Xue-mei, Zhang Xuan-fen, Li Xiao-hui, Zhang Qing-xia. Effect of vacuum sealing drainage on nerve growth factor and microvessels in chronic wound[J]. Chinese Journal of Tissue Engineering Research, 2014, 18(11): 1647-1652.

Figures/Tables 5

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