相关实验视频
Updated: Jul 22, 2025
10:52
An Alkali-burn Injury Model of Corneal Neovascularization in the Mouse
Published on: April 7, 2014
16.7K
用于治疗角膜新血管化的炎症响应分子门式隐形眼镜
Rong Sun1, Shuting Ma1, Xi Chen1
1Department of Pharmaceutics, School of Pharmacy, Shenyang Pharmaceutical University, Shenyang 110016, Liaoning, PR China.
概括
新的德克萨米他隐形眼镜 (MCLs@Dex) 为角膜新血管化 (CNV) 提供了一个有前途的治疗方法. 这些响应性透镜提供持续的药物输送,减少炎症和抑制CNV超过76%.
科学领域:
- 眼科医生 眼科 眼科
- 生物材料科学 生物材料科学
- 药物输送系统 药物输送系统
背景情况:
- 角膜新血管化 (CNV) 会损害视力,并可能导致失明.
- 目前的治疗方法,如葡萄糖皮质类眼药,有其局限性,包括副作用和患者不良服从.
- CNV与增加反应性氧物种 (ROS) 生产有关.
研究的目的:
- 开发一种新的用德克萨米他装载的隐形眼镜 (MCLs@Dex),用于持续和响应性药物输送.
- 调查ROS响应材料在治疗CNV方面的潜力.
- 评估MCLs@Dex在长期治疗眼皮表面疾病方面的有效性和安全性.
主要方法:
- 使用ROS响应性单体和高氧透性氧氧材料制造含德克萨米他的隐形眼镜.
- 在168小时内对过氧化 (H2O2) 反应药物释放的体外评估.
- 在体内药理动力学研究中,将MCLs@Dex与眼滴进行比较.
- 在动物模型中评估抗炎和抗新血管效应.
主要成果:
- 在168小时内,MCLs@Dex表现出显著的H2O2反应性德克萨米他释放.
- 这些透镜表现出优越的氧气透性和超低的蛋白质吸附性,适合长期佩戴.
- 在体内研究显示,与眼滴相比,平均停留时间增加了19.7倍,生物可用性增加了2.29倍.
- 在第14天,MCLs@Dex显著减少了炎症,氧化应激,并抑制了新血管化的76.53%.
结论:
- MCLs@Dex代表了一种安全有效的ROS响应药物输送系统,用于治疗角膜新血管化.
- 这种新的隐形眼镜平台提供了持续的药物释放,并改善了眼睛表面疾病的治疗结果.
- 开发的系统克服了传统眼滴的局限性,提高了患者的服从性和治疗效率.
相关概念视频
01:28Angle Closure Glaucoma: Treatment
572
Angle-closure glaucoma, or closed-angle glaucoma, is an eye condition where the iris bulges out and blocks the iridocorneal angle, resulting in a buildup of aqueous humor and increased intraocular pressure. Immediate medical attention is necessary due to the sudden onset of symptoms. The treatment for angle-closure glaucoma includes short-term and long-term approaches. Short-term treatment involves using eye drops like pilocarpine to lower intraocular pressure by increasing aqueous humor...
572
01:27Open Angle Glaucoma: Treatment
481
In open-angle glaucoma, the iridocorneal angle remains open, but the trabecular meshwork becomes stiff, slowing down the outflow of aqueous humor. This causes a buildup of aqueous humor in the anterior chamber, leading to a sudden increase in intraocular pressure. The treatment for open-angle glaucoma focuses on reducing the elevated intraocular pressure by either decreasing the secretion of aqueous humor or increasing its outflow.
Drugs such as carbonic anhydrase inhibitors, α2- and...
Drugs such as carbonic anhydrase inhibitors, α2- and...
481
01:25Glaucoma: Overview
623
Glaucoma is an eye condition characterized by increased intraocular pressure that damages the retina and optic nerve, leading to irreversible blindness if left untreated. The human eye has various components, including the cornea, iris, pupil, lens, and optic nerve. Aqueous humor is secreted by the epithelium of the ciliary body in the posterior chamber and flows through the trabecular meshwork and canal of Schlemm, maintaining normal intraocular pressure. The trabecular meshwork and the canal...
623