Conclusion: the formation of abnormal scar could be the result of highly proliferative activity of fibroblasts.
结论：瘢痕增生可能为瘢痕成纤维细胞增殖活性增高所致。
Objective To study the significance of expression of Matrix Metalloproteinase-1(MMP-1) , Tissue Inhibitor of Metalloproteinase-1(TIMP-1) and Proliferating cell nuclear antigen (PCNA) in abnormal scar.
目的：研究基质金属蛋白酶-1（MMP-1）、金属蛋白酶组织抑制剂-1（TIMP-1）、增殖细胞核抗原（PCNA）在病理性瘢痕中的表达及意义。
The resulting scar tissue blocks the abnormal flow of electrical signals that can cause irregular heartbeats.
产生的疤痕组织会阻止导致心律不齐的异常电流信号。
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