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Endothelial dysfunction and pathogenesis of diabetic angiopathy
C D Stehouwer1, J Lambert, A J Donker
1Department of Internal Medicine, Free University Hospital, Amsterdam, Netherlands.
Cardiovascular Research
|April 1, 1997
Summary
Endothelial dysfunction is central to diabetic vascular complications. While mechanisms like hyperglycemia and oxidative stress are implicated, their precise role in humans requires further study.
Area of Science:
- Cardiovascular Research
- Endocrinology
- Pathophysiology
Background:
- Diabetic micro- and macroangiopathy are significant complications of diabetes mellitus.
- Endothelial dysfunction is increasingly recognized as a key factor in these vascular issues.
Purpose of the Study:
- To review the clinical contribution of endothelial dysfunction to the development of diabetic vascular disease.
- To explore potential underlying mechanisms of endothelial dysfunction in diabetes.
Main Methods:
- Literature review focusing on clinical data and experimental models.
- Analysis of factors implicated in endothelial dysfunction in diabetes.
Main Results:
- Endothelial dysfunction is generalized in diabetes with micro- or macroalbuminuria and precedes early diabetic microangiopathy.
- Microalbuminuria is linked to endothelial dysfunction, serving as a risk marker for cardiovascular disease in diabetics.
- Proposed mechanisms include hyperglycemia, protein kinase C activation, growth factor expression, glycation, oxidative stress, and inflammation, though human data is limited.
Conclusions:
- Endothelial dysfunction is a critical component in the pathogenesis of diabetic angiopathy in humans.
- The exact biochemical pathways driving endothelial dysfunction in diabetic patients remain to be fully elucidated.