相关实验视频
Updated: Jun 17, 2025

07:06
Binocular Dynamic Visual Acuity in Eyeglass-Corrected Myopic Patients
Published on: March 29, 2022
2.5K
患有近视的患者的水性幽默中的脂质样本
Danyang Che1, Lingfeng Lv1, Yiting Cao1
1Department of Ophthalmology, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China; College of Health Science and Technology, Shanghai Jiao Tong University School of Medicine, Shanghai, China.
Experimental eye research
|August 10, 2024
概括
近视患者在水性幽默中表现出明显的脂质配置,其中五种脂质显著不同. 其中三种脂质与近视严重程度相关,这表明脂质体会影响眼睛的生长和发育.
科学领域:
- 眼科医生 眼科 眼科
- 利皮多米克 (Lipidomics) 是一种消化剂.
- 生物化学 生物化学
背景情况:
- 近视,一种普遍的折射误差,具有复杂的发病因子,可能涉及改变的生化途径.
- 脂质代谢在细胞功能和组织平衡中起着至关重要的作用,但其在近视方面的具体作用尚未完全理解.
研究的目的:
- 为了研究近视的个体与不同的轴长度之间的水性幽默脂质谱的差异.
- 确定与近视相关的特定脂质,并探索它们与球形等价和轴长等生物识别参数的相关性.
主要方法:
- 超高性能液体染色学-并联质谱学 (UHPLC-MS/MS) 用于对水性幽默样品进行全面的脂质分析.
- 进行统计分析,包括单变量,多变量和接收器操作者特征 (ROC) 分析,以确定差异性脂质及其诊断潜力.
- 使用斯皮尔曼相关性来评估脂质度与眼部生物识别数据之间的关系.
主要成果:
- 在21个类别中共鉴定了309种脂质. 五种脂质,包括BMP (20:3/22:3),PG (22:1/24:0),PS (14:1/22:4),TG (44:2)_FA18:2,和TG (55:3)_FA18:1,在各组之间显示出显著的差异.
- 这五种脂质在ROC分析中显示曲线下的面积 (AUC) >0.75,表明它们作为生物标志物的潜力.
- BMP (20:3/22:3),PS (14:1/22:4) 和TG (55:3)_FA18:1的度与球体等价物有显著的相关性,而BMP (20:3/22:3) 和PS (14:1/22:4) 与轴长度相关性.
结论:
- 这项研究在近视患者的水性幽默中确定了五种关键的差异性脂质,其中三种与近视严重程度直接相关.
- 这些发现突显了脂质组变化的作用在近视病原体,影响细胞膜特性,能量代谢和炎症途径.
- 鉴定到的脂质可以作为近视的潜在生物标志物,并提供对治疗点的见解.
相关概念视频
Open Angle Glaucoma: Treatment
413
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...
413
Focusing of Light in the Eye
2.7K
Light rays enter the eye through the cornea, a transparent dome-shaped tissue that is the eye's outermost layer. The cornea bends or refracts, light rays traveling to the pupil. The shape of the cornea determines how much of the light is bent and whether the image will be focused correctly on the retina at the back of the eye. Once the light has passed through both refraction layers, it converges into a single focal point onto a small area. This is where photoreceptors start transforming...
2.7K
Glaucoma: Overview
530
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...
530
Angle Closure Glaucoma: Treatment
459
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...
459

