一种亲治疗和抗菌的生物基凝屏障,用于预防肠道解剖漏洞的泄漏
Yiheng Ju1, Dongjie Zhang2, Huijie Wang1
1Department of Gastrointestinal Surgery, Affiliated Hospital of Qingdao University, Qingdao University, Qingdao, 266555, China.
ACS applied materials & interfaces
|April 5, 2025
概括
一种由猪小肠子粘膜 (SIS) 制成的新型水凝有效地防止了大鼠的结肠静脉性泄漏. 这种生物材料密封了解,减少了感染,并通过优化当地的微环境来促进愈合.
科学领域:
- 生物材料科学 生物材料科学
- 手术创新 在外科创新.
- 胃肠病学 胃肠病学
背景情况:
- 结肠直肠静脉泄漏是一种严重的术后并发症,其原因复杂,并可能导致致命的结果.
- 现有的治疗方法在预防泄漏和相关的腹部感染方面有限.
- 对于先进的生物材料有极大的需求,以防止肠道细菌的转移,并促进瘤的愈合.
研究的目的:
- 开发一种多功能,对温度敏感的细胞外基质 (ECM) 水凝,以防止动脉漏.
- 评估水凝的特性,包括密封能力,生物相容性,以及促进解瘤愈合的有效性.
- 研究水凝在减少腹部感染和改善手术结果方面的潜力.
主要方法:
- 使用猪小肠子粘膜 (SIS) ECM修饰的温度敏感水凝的制备.
- 水凝特性:结构稳定性,耐消化汁,组织粘附性,机械强度,可注射性和自我愈合性.
- 在体外评估抗消化,抗菌,细胞/血液兼容性,抗氧化和抗炎作用.
- 在老鼠模型中进行体内评估,以评估结肠异位性泄漏的减少和促进组织修复.
主要成果:
- 制备的水凝表现出优异的结构稳定性,对消化酶的耐药性,组织粘附性,机械性质和自我愈合能力.
- 在体外研究证实了有效的抗消化,抗菌,抗氧化和抗炎性质,以及良好的细胞和血液兼容性.
- 在体内实验表明,水凝有效地封闭了解,优化了当地的微环境,促进了细胞增殖和血管化,并减少了亲炎性因子表达.
- 水凝显著降低了大肠道泄漏在老鼠的发生率.
结论:
- 开发的多功能水凝是一种有前途的生物材料,用于预防和管理结肠流性泄漏.
- 它独特的特性使其能够有效地密封,预防感染,并促进解瘤愈合.
- 这种创新材料为改善结直肠手术外科结果提供了一种新的策略.
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