The Oxidative Stress and Mitochondrial Dysfunction during the Pathogenesis of Diabetic Retinopathy

Area of Science:

• Ophthalmology
• Endocrinology
• Molecular Biology

Background:

• Diabetic retinopathy is a severe microvascular complication of hyperglycemia.
• Hyperglycemia triggers five key pathways: polyol, hexosamine, protein kinase C, angiotensin II, and advanced glycation end products.
• Oxidative stress, inflammation, and cell apoptosis are central to diabetic retinopathy pathogenesis.

Purpose of the Study:

• To review the current understanding of diabetic retinopathy pathogenesis.
• To summarize existing treatment strategies for diabetic retinopathy.
• To provide a foundation for future research in the field.

Main Methods:

• Literature review of existing knowledge on diabetic retinopathy.
• Systematization of information on pathogenesis and treatment.

Main Results:

• Hyperglycemia-induced reactive oxygen species (ROS) lead to inflammation, mitochondrial dysfunction, and cell apoptosis.
• Microvascular dysfunction, inflammation, and cell death contribute to ischemia, neovascularization, macular edema, and neurodysfunction.
• These interconnected processes drive diabetic retinopathy progression.

Conclusions:

• Elucidating the detailed mechanisms of diabetic retinopathy is crucial for effective management.
• This review consolidates current knowledge to support further research and therapeutic development.