Objective properly deal with open wounds to check and prevent scars from overgrowing and the producing of the keloids.
目的：正确处理开放性伤口，预防瘢痕过度生长或瘢痕疙瘩的形成。
Method With immunohistochemistry technique, the expression of VEGF and PCNA in keloids and hypertrophic scars was investigated, and the normal skins and scars were taken as controls.
方法应用免疫组织化学染色技术，以正常皮肤和正常瘢痕作对照，观察了瘢痕疙瘩和增殖性瘢痕中vegf和PCNA的表达。
METHODS: Keloids and normal skins(negative controls) were obtained from 6 patients and 6 normal people who operated in the Department of Plastic Surgery, Peking University Third Hospital.
方法：瘢痕疙瘩和正常皮肤（作为阴性对照）均来自北京大学第三医院成形科手术患者各6例。
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