Macro- and microvascular endothelial dysfunction in diabetes

Area of Science:

• Vascular Biology
• Endocrinology
• Cardiovascular Research

Background:

• Endothelial cells regulate vascular homeostasis via nitric oxide (NO) and prostacyclin.
• Diabetes mellitus is a major risk factor for cardiovascular disease, initiating diabetic vascular complications through endothelial dysfunction.
• Endothelial dysfunction affects both macrovasculature and microvasculature.

Purpose of the Study:

• To review the mechanisms of diabetes-induced endothelial dysfunction in macro- and microvasculature.
• To highlight the role of non-coding RNAs, specifically microRNAs, in modulating this dysfunction.
• To discuss potential therapeutic strategies for diabetic endothelial dysfunction.

Main Methods:

• Literature review focusing on endothelial cell function in diabetes.
• Analysis of mechanisms underlying macrovascular and microvascular complications.
• Examination of the role of microRNAs in diabetes-induced vascular changes.

Main Results:

• Diabetic macrovascular dysfunction involves reduced NO bioavailability and increased vasoconstrictors.
• Microvascular dysfunction is marked by decreased NO, oxidative stress, inflammation, and impaired repair.
• MicroRNAs are identified as key regulators in diabetes-induced endothelial dysfunction.

Conclusions:

• Diabetes-induced endothelial dysfunction is a central mechanism in diabetic vascular complications.
• MicroRNAs play a significant modulatory role in this process.
• Targeting microRNAs and other pathways offers therapeutic potential for diabetic vascular disease.