...是机体修复创面的正常表现，有积极的作用，是人们所期待的，这类瘢痕被称为生理性瘢痕（physiological）或正常瘢痕(normal scar)，特点是快..
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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。
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.
目的观察正常的黑色素细胞对增生性瘢痕成纤维细胞的生物学效应。
AIM To observe the effects produced by melanocytes on the proliferation of hypertrophic scar fibroblasts.
结果p-ERK和PCNA蛋白在病理性瘢痕中与非病理瘢痕、正常皮肤差异有显著性（P<0.05）。 相关性分析有显著性（P<0.05）。
Results The expression of PCNA and pERK were significant difference between pathologic scars group and the two control groups (P<0.05), correlativity analysis showed significant difference (P<0.05).
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