Department of Ophthalmology & Visual Sciences, McGill University, Montreal, QC H4A 3S5, Canada.
Division of Ophthalmology, Department of Surgery, University of Sherbrooke, Sherbrooke, QC J4K 0A8, Canada.
Biomolecules. 2024 Aug 25;14(9):1055. doi: 10.3390/biom14091055.
This comprehensive review investigates the pivotal role of reactive oxygen species (ROS) in cataract formation and evaluates the potential of antioxidant therapies in mitigating this ocular condition. By elucidating the mechanisms of oxidative stress, the article examines how ROS contribute to the deterioration of lens proteins and lipids, leading to the characteristic aggregation, cross-linking, and light scattering observed in cataracts. The review provides a thorough assessment of various antioxidant strategies aimed at preventing and managing cataracts, such as dietary antioxidants (i.e., vitamins C and E, lutein, and zeaxanthin), as well as pharmacological agents with antioxidative properties. Furthermore, the article explores innovative therapeutic approaches, including gene therapy and nanotechnology-based delivery systems, designed to bolster antioxidant defenses in ocular tissues. Concluding with a critical analysis of current research, the review offers evidence-based recommendations for optimizing antioxidant therapies. The current literature on the use of antioxidant therapies to prevent cataract formation is sparse. There is a lack of evidence-based conclusions; further clinical studies are needed to endorse the use of antioxidant strategies in patients to prevent cataractogenesis. However, personalized treatment plans considering individual patient factors and disease stages can be applied. This article serves as a valuable resource, providing insights into the potential of antioxidants to alleviate the burden of cataracts.
这篇全面综述探讨了活性氧 (ROS) 在白内障形成中的关键作用,并评估了抗氧化治疗在减轻这种眼部疾病中的潜力。通过阐明氧化应激的机制,本文研究了 ROS 如何导致晶状体蛋白和脂质的恶化,导致白内障中观察到的特征性聚集、交联和光散射。该综述对各种旨在预防和治疗白内障的抗氧化策略进行了全面评估,例如膳食抗氧化剂(即维生素 C 和 E、叶黄素和玉米黄质)以及具有抗氧化特性的药物。此外,文章还探讨了创新的治疗方法,包括基因治疗和基于纳米技术的递药系统,旨在增强眼部组织的抗氧化防御能力。本文在批判性分析现有研究的基础上,为优化抗氧化治疗提供了循证建议。目前关于抗氧化治疗预防白内障形成的文献很少。缺乏基于证据的结论;需要进一步的临床研究来支持在患者中使用抗氧化策略以预防白内障形成。然而,可以应用考虑个体患者因素和疾病阶段的个性化治疗计划。本文是一个有价值的资源,为抗氧化剂减轻白内障负担的潜力提供了深入了解。