一个携带药物,多场景,从鱼游泳膀吸收的生物
Peng Sun1, Hao Cui1, Jinwei Zhang1
1Department of Cardiovascular Surgery Center, Beijing Anzhen Hospital Capital Medical University, Beijing Institute of Heart, Lung and Blood Vascular Diseases, Beijing, China.
International journal of surgery (London, England)
|June 20, 2025
概括
这项研究介绍了一种新的鱼泳膀 suture,可以减少炎症并改善各种组织的伤口愈合. 这些释放药物的部为传统的伤口关闭方法提供了有希望的替代方案.
科学领域:
- 生物材料科学 生物材料科学
- 再生医学是一种再生医学.
- 手术创新 在外科创新.
背景情况:
- 传统接在复杂的伤口关闭方面存在机械性能和生物相容性的限制.
- 需要新的可吸收的生物,以克服各种解剖环境中的挑战.
研究的目的:
- 开发和评估一种新的药物释放,多场景可吸收的生物,来自脱细胞化鱼类游泳膀.
- 评估的机械性能,pH电阻,以及减少异物反应和促进伤口愈合的有效性.
主要方法:
- 鱼的游泳膀被脱细胞化并用尼克罗斯坦丁-1 (NEC-1) 或拉巴胺素 (RAPA) 功能化.
- 的细胞毒性,机械性能 (抗拉力,抗酸/抗) 和 in vivo 疗效在老鼠模型中进行了静脉,动脉,肠道,胃和腹壁关闭的测试.
- 进行了组织学和SEM分析,以评估炎症反应和组织整合.
主要成果:
- 在酸性/性条件下,NEC-1 线表现出优越的抗拉强度,并保持完整性.
- 药物加载的可以抑制细胞增殖,而不会诱导细胞亡,并显著减少异物反应 (囊面积更小,巨细胞更少).
- NEC-1 sutures 显示出强烈的抑制新血管化,而所有 suture 类型都取得了成功的,无泄漏的伤口关闭.
结论:
- 鱼游泳膀衍生的可以应用于多种组织类型.
- 从这些部分阶段释放药物可以显著减少炎症反应.
- 这些新线为多组织手术修复提供了一个有希望的替代方案.
相关概念视频
Drug Absorption Mechanism: Passive Membrane Transport
6.9K
Passive transport is a method of drug absorption where small, lipid-soluble drugs can move across the cell membrane. This movement happens along the concentration gradient, which is a natural flow from higher to lower concentration areas. The speed at which the drug moves is directly related to its lipid–water partition coefficient. This means that the more a drug dissolves in lipids, the faster it diffuses or spreads throughout the body. It is important to note that most drugs are either...
6.9K
Drug Absorption Mechanism: Carrier-Mediated Membrane Transport
5.7K
Certain large, lipid-insoluble drug molecules that resemble amino acids, peptides, or glucose, require specialized carrier proteins to facilitate their diffusion across cell membranes. This transport can occur through either facilitated diffusion, which does not require energy input, or active transport, which does require energy input.
Facilitated diffusion is a passive process that utilizes human Solute Carrier (SLC) transporters. These transporters bind to the drug, undergo structural...
Facilitated diffusion is a passive process that utilizes human Solute Carrier (SLC) transporters. These transporters bind to the drug, undergo structural...
5.7K
Drug Biotransformation: Overview
3.7K
Pharmaceutical substances known as xenobiotics are predominantly lipophilic and nonionized. This enables them to permeate lipid bilayers, such as cell membranes, and interact with intracellular target receptors. Lipophilic drugs have an advantage in crossing biological barriers and reaching their intended sites of action. However, lipophilic drugs often have a restricted capacity for renal expulsion or elimination from the body. When these drugs enter the kidneys and undergo glomerular...
3.7K
Cellular Membranes and Drug Transport
2.1K
Drugs must traverse multiple biological barriers, such as multi-layered skin, single-layered intestinal epithelium, and the plasma membrane, to reach their target sites within the body. The plasma membrane, a highly structured composite of phospholipids, carbohydrates, and proteins, is the cell's protective boundary, facilitating selective substance exchange.
Phospholipids arrange themselves into a bilayer, with hydrophilic heads oriented outward and hydrophobic tails facing inward.
Phospholipids arrange themselves into a bilayer, with hydrophilic heads oriented outward and hydrophobic tails facing inward.
2.1K
Carrier-Mediated Transport
1.6K
Carrier-mediated transport is a pivotal process in drug absorption, particularly for lipid-insoluble drugs, and encompasses facilitated diffusion and active transport. Facilitated diffusion allows drugs to move along their concentration gradient without energy expenditure, while active transport utilizes ATP to drive drug movement against this gradient.
Active transport involves two types of membrane-spanning transporters: uptake and efflux. Uptake transporters are expressed in the small...
Active transport involves two types of membrane-spanning transporters: uptake and efflux. Uptake transporters are expressed in the small...
1.6K
Non-Oral Extravascular Drug Absorption Routes
724
Non-oral extravascular routes, which encompass sublingual, buccal, topical, intramuscular, and inhalation methods, primarily utilize passive diffusion to transport drugs into the systemic circulation. The absorption rates and effectiveness of these routes depend on the drug's physicochemical properties, as well as the patient's anatomical and pathophysiological state.
Lipophilic drugs that are stable at salivary pH (6) and exhibit minimal binding to the oral mucosa are absorbed more...
Lipophilic drugs that are stable at salivary pH (6) and exhibit minimal binding to the oral mucosa are absorbed more...
724


