相关实验视频
Updated: Jun 13, 2025

08:45
Tissue Engineering of the Intestine in a Murine Model
Published on: December 1, 2012
14.9K
生物响应和可转换的由肠周平静激活的协同体,用于针对性治疗肠道出血和炎症
Yuqi Peng1,2, Xiaofen Luo1,2, Xinyu Wang3
1State Key Laboratory of Silkworm Genome Biology, College of Sericulture, Textile and Biomass Sciences, Southwest University, Chongqing, 400715, China.
Bioactive materials
|September 16, 2024
概括
一种新型的水凝通过粘附在炎症的肠道,阻止出血的来准性结肠炎 (UC). 这种生物材料具有强烈的粘附性,为UC患者提供了有前途的非侵入性治疗.
科学领域:
- 生物材料科学 生物材料科学
- 胃肠病学 胃肠病学
- 再生医学是一种再生医学.
背景情况:
- 性结肠炎 (UC) 治疗需要管理肠道炎症和出血的方法.
- 目前的治疗方法可能缺乏向的治疗或对炎症组织的有效粘附.
研究的目的:
- 开发一种口服的,在位形成的水凝 (EMNs-gel) 用于针对性地向炎症的肠部位输送.
- 调查水凝抑制出血和缓解UC炎症的能力.
主要方法:
- 设计了一种不与水混合的协基 (EMNs-gel) 使用含多巴丰富的丝纤维蛋白矩阵和嵌入的纳米粒子.
- 嵌入的炎症反应纳米颗粒触发Fe3+释放和水凝形成与炎症组织接触时 (MMPs触发).
- 在体外和体外UC模型中评估了水凝,组织粘附,静血和停留时间.
主要成果:
- 在炎症的肠道表面上,EMNs-gel表现出偏好的水凝.
- 实现了高效的血液静止,并显著减少了肠道出血.
- 在体内表现出长达48小时的延长停留时间.
结论:
- 该EMNs-凝提供了一个非侵入性的解决方案,用于抑制UC的严重出血.
- 该生物材料改善了肠道平衡,并显示了UC治疗中临床应用的潜力.
相关概念视频
Inflammatory Bowel Disease V: Surgical Management
128
Surgical interventions for inflammatory bowel disease (IBD), which includes ulcerative colitis and Crohn's disease, are essential in managing symptoms and addressing complications. The selection of surgical procedures is contingent upon the specific conditions and complications that stem from these illnesses.
Here are some common surgical interventions for IBD:
Here are some common surgical interventions for IBD:
128
Renewal of Intestinal Stem Cells
2.5K
The intestinal epithelial lining rapidly renews every 4 to 5 days. The renewal is facilitated by intestinal stem cells (ISCs) located at the base of the crypt– a gland located at the bottom of each villus. ISCs divide asymmetrically to form new stem cells and progenitor daughter cells. The daughter cells are called transit-amplifying (TA) cells which move upwards along the crypt and either differentiate into absorptive cells– the enterocytes or secretory cells– including the...
2.5K
Inflammatory Bowel Disease IV: Pharmacological Management
118
Upon diagnosis, managing Inflammatory Bowel Disease (IBD) involves addressing several crucial aspects. The primary goals include resting the bowel, correcting malnutrition, and providing symptomatic relief. Resting the bowel may consist of medications to reduce inflammation and promote healing. Correcting malnutrition is essential, often requiring dietary adjustments and nutritional supplements. Symptomatic relief aims to ease pain, diarrhea, and other discomforts in IBD.
Pharmacologic...
Pharmacologic...
118
Drugs for Treatment of Ulcerative Colitis in IBD
130
Ulcerative colitis is a chronic inflammatory condition primarily affecting the colon and rectum. The primary drugs used in the treatment of ulcerative colitis are aminosalicylates. They exhibit anti-inflammatory and immunosuppressive properties. They modulate inflammatory mediators and inhibit the activity of nuclear factor κB (NF-κB). Aminosalicylates also reduce inflammation by inhibiting prostaglandin and leukotriene production and decreasing neutrophil chemotaxis and superoxide...
130

