在患有眼科移植对宿主疾病的患者中,角膜敏感性和神经病变
Cornea
|August 23, 2024
概括
在眼部移植与宿主疾病中,角膜敏感性丧失与角膜神经密度降低和表皮病变的增加有关. 这些发现突显了神经损伤与眼表面疾病严重程度之间的联系.
科学领域:
- 眼科医生 眼科 眼科
- 免疫学 免疫学 免疫学
- 神经科学是一个神经科学.
背景情况:
- 眼部移植对主体疾病 (GVHD) 可以显著影响眼部表面的健康.
- 角膜敏感度和基底下神经形态是眼睛表面完整性的关键指标.
- 了解这些因素之间的关系对于管理与GVHD相关的眼部并发症至关重要.
研究的目的:
- 用非接触式和科切-波内特审视仪来量化眼睛GVHD患者的角膜敏感性变化.
- 为了研究角膜敏感性降低与基底下神经密度变化之间的关联.
- 评估角膜敏感度,神经密度和角膜表皮病的严重程度之间的相关性.
主要方法:
- 对36名患有眼部GVHD的患者的临床数据进行了回顾性分析.
- 使用非接触式 (mbar) 和Cochet-Bonnet (cm) 审美仪评估的角膜敏感性.
- 基底下神经密度通过体内共聚焦显微镜评估;角膜光素染色 (CFS) 和希尔默-I测试也进行.
主要成果:
- 角膜敏感性降低与较低的总体,主要干部和分支基底下神经密度显著相关.
- 角膜敏感性丧失与角膜光素染色 (CFS) 评分的增加有着强烈的正相关性,表明表皮病变更大.
- 晚年和点性闭塞也与角膜敏感性降低有关.
结论:
- 眼睛GVHD中角膜敏感性丧失与角膜神经密度降低密切相关.
- 用CFS测量角膜表皮病的严重程度与角膜敏感度降低和神经密度降低直接相关.
- 这些发现强调了角膜神经在维护GVHD患者眼表面健康方面的神经营养作用.
相关概念视频
Glaucoma: Overview
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...
Open Angle Glaucoma: Treatment
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...
Local Anesthetics: Differential Sensitivity of Nerve Fibers
Local anesthetics (LAs) block the sodium channels of nerve trunks, sensory nerve endings, and neuromuscular junctions. Although LAs can block all kinds of nerves, the sensitivity of nerve fibers differs according to nerve types and structures. LAs are known to block myelinated fibers faster than unmyelinated ones. Also, they block pain or sensory neurons at low concentrations without affecting the motor neurons involved in muscle contractions. This helps relieve labor pain without affecting the...


