蓝色激光触发血静性水凝用于胃肠道出血治疗
Qiang Luo1, Jie Luo1, Zhaohui Luan1
1Department of Gastroenterology, Xinqiao Hospital, No. 183, Xinqiao Street, Chongqing, 400037, China.
Advanced materials (Deerfield Beach, Fla.)
|July 16, 2024
概括
一种新的静血性水凝 (HPH) 提供了有效的治疗非静脉上部胃肠道出血 (NVUGIB). 这种创新的水凝,通过蓝色激光内镜激活,成功地停止出血,防止复发.
科学领域:
- 生物材料科学 生物材料科学
- 胃肠病学 胃肠病学
- 医疗器械 医疗器械
背景情况:
- 内镜血静是非瘤上部胃肠道出血 (NVUGIB) 的标准.
- 目前的方法面临着大或深层病变的挑战,增加了再出血的风险.
- 需要先进的静血剂来改善NVUGIB管理.
研究的目的:
- 开发和评估一种用于NVUGIB治疗的新型血静性水凝 (HPH).
- 为了评估HPH与蓝色激光内镜 (BLE) 结合的疗效.
- 调查HPH在预防再出血和管理凝血性出血方面的潜力.
主要方法:
- 使用自组合 (PFV) 和凝甲烯基 (GelMA) 合成了静血性水凝 (HPH).
- 蓝色激光内镜 (BLE) 触发了HPH的形成.
- 静血性能在体外和动物模型中进行了评估,包括猪NVUGIB和肝/动脉损伤模型.
主要成果:
- 在与GelMA溶液接触时,HPH通过自我组装迅速形成β-sheet纳米纤维网络.
- 通过包裹血细胞和激活血小板和凝固因子,HPH显示出超快的凝血.
- 在猪NVUGIB模型中,HPH在60秒内实现了即时出血控制,没有观察到再出血.
- 在动脉和肝脏损伤模型中也显示出有效的止血,甚至在血液中出现凝血病.
结论:
- 由BLE激活的新型HPH,为NVUGIB提供了一个有前途的静血剂.
- HPH有效地实现了快速和持续的血液静止,减轻了再出血的风险.
- 这项技术具有治疗NVUGIB的潜力,特别是在凝血病患者中,这表明了有利的临床前景.
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