实验动物科学 ›› 2019, Vol. 36 ›› Issue (01): 5-.

• 研究报告 • 上一篇    下一篇

深Ⅱ度烫伤后小型猪皮肤愈合的组织病理学研究

  

  1. (1. 山东省药学科学院,山东省化学药物重点实验室,济南 2501010) (2. 山东英才学院,济南 250104)
  • 出版日期:2019-02-28 发布日期:2020-09-03

Histopathological Study on Skin Wound Healing of Minipig after Deep Second Degree Burn

  • Online:2019-02-28 Published:2020-09-03

摘要: 目的 建立猪深Ⅱ度烫伤模型,观察皮肤在不同时间点修复的组织病理学变化。方法 通过使用恒温烫伤仪制备小型猪皮肤深Ⅱ度烫伤创面。分别在第1、3、7、14、21、28天观察皮肤创伤愈合的肉眼形态学变化并进行创面愈合率的测定,根据皮肤组织愈合的规律及实验的可操作性,选择性地在第1、14、28天取样,利用HE、Masson染色及免疫组化CD31染色的方法观察皮肤在不同时间点修复的动态病理学变化。结果 通过对创面愈合率的测定,雄性猪与雌性猪相比,雄性猪烫伤创面的愈合速率较快。烫伤后皮肤组织经不同染色方法证实损伤已累积到真皮深层,达到深Ⅱ度烫伤的标准。在随后选择的第14天和28天,损伤后皮肤组织分别进行了不同程度的组织修复。深Ⅱ度烫伤28 d后,小型猪皮肤已经基本愈合,但皮肤组织还未完全成熟。除表皮各层相对成熟外,真皮层内还未完全形成瘢痕组织。结论 雄性猪与雌性猪相比,雄性猪烫伤创面的愈合速率较快。

关键词: 小型猪, 深Ⅱ度烫伤, 皮肤, 组织病理学

Abstract: Objective To establish the model of porcine deep second degree burn and observe the histopathological changes of the skin at different time points. Method Use the constant tempera turescaler to prepare minipig deep second degree burn. The morphological changes of the wound were observed and the healing rate was measured on the 1st, 3rd, 7th, 14th, 21st and 28th day, respectively. According to the rule of skin tissue healing and the operability of the experiment, scalded tissue was sampled on the 1st, 14th and 28th day, respectively. The histopathological changes of the skin were observed at different time points by HE, Masson staining and immunohistochemical staining with anti-CD31 antibody on the 1st, 14th and 28th day. Result Postburn skin tissue has accumulated into the deep dermis and is confirmed to reach the standard deep second degree burn by using the different methods. On the 14th and 28th day of the postburn, different degrees of tissue repair is performed on the damaged skin respectively. On the 28th day of deep second degree burn, the skin has basically healed, but the skin tissue has not yet fully matured. In addition to the relatively mature layers of the epidermis, the dermis has not yet fully formed the scar tissue.Conclusion The healing rate of male pigs is faster than female pigs.

Key words: minipig, deep second degree burn, skin, histopathology