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在老鼠模型中用脉冲电场治疗烧伤后的痕
Din Mann1, Nurit Bar-Shai2, Klimentiy Levkov2
1Department of Plastic Surgery, Meir Medical Center, Kfar Sava, 4428164, Israel.
概括
脉冲电场 (PEFs) 在大鼠中显著减少了40-45%的烧伤痕大小. 这种最少的侵入性治疗显示出改善愈合结果和减少严重烧伤后痕形成的希望.
科学领域:
- 生物医学工程 生物医学工程
- 再生医学是一种再生医学.
- 伤口治愈研究研究 伤口治愈研究
背景情况:
- 严重的烧伤带来了重大的医疗挑战,痕减少是一个关键的困难.
- 目前治疗烧伤痕的方法有局限性,需要新的治疗方法.
研究的目的:
- 评估一种新型电池驱动的脉冲电场 (PEF) 装置在小鼠烧伤模型中减少痕大小的有效性.
- 评估微侵袭PEF应用对愈合烧伤伤口的安全性和本病学影响.
主要方法:
- 一个带有表面针电极应用器的电池驱动的PEF设备被用于治疗大鼠的背部烧伤.
- 在受伤后的10天内进行了4个月的PEF治疗,使用不同的电压 (250-350V),400mA电流,70μs脉冲持续时间,10Hz频率和5个位置的40个脉冲.
- 在最后一次PEF应用后2个月测量了痕大小的减少,并进行了组织病理学分析.
主要成果:
- 与未经处理的对照组相比,PEF处理导致痕大小减少40% - 45%,在上部和下部背部位置.
- 没有观察到任何显著的不良反应.
- 组织病理学检查显示,在PEF治疗的痕中,新产生的表皮较厚,在痕中心没有其他显著差异.
结论:
- 通过针头电极进行最小侵入性PEF应用是一种有效的方法,可以在老鼠模型中减少烧伤痕大小.
- 开发的PEF设备为管理残留烧伤和最大限度地减少痕形成提供了一个有前途的治疗策略.
- 对PEF的治疗表明了有利的安全性,没有检测到任何不良影响.
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