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Role of nitric oxide in insulin-dependent diabetes mellitus-related vascular complications
1Dept. of Physiology and Biophysics, University of Washington School of Medicine, Seattle 98195, USA.
Insights
Insulin-dependent diabetes mellitus patients face high risks of vascular disorders. This review explores nitric oxide
Area of Science:
- Cardiovascular Science
- Endocrinology
- Metabolic Disorders
Background:
- Insulin-dependent diabetes mellitus (IDDM) significantly increases the risk of serious vascular complications, including hypertension, nephropathy, and retinopathy.
- Vascular disease is the primary cause of mortality and morbidity in IDDM patients, yet its underlying pathogenesis remains incompletely understood.
- Nitric oxide (NO), an endothelium-derived relaxing factor, is increasingly recognized for its role in vascular health and disease, particularly in hypertension.
Purpose of the Study:
- To review the current understanding of nitric oxide's role in the development of vascular disease associated with diabetes.
- To discuss evidence indicating alterations in nitric oxide metabolism and vascular responsiveness in diabetic patients.
- To highlight potential therapeutic strategies targeting nitric oxide pathways for diabetic vascular complications.
Main Methods:
- Literature review of studies investigating nitric oxide in diabetes and vascular disease.
- Analysis of research on endothelial function and nitric oxide bioavailability in diabetic models and patients.
- Synthesis of findings related to nitric oxide metabolism, signaling, and vascular effects in the context of diabetes.
Main Results:
- Evidence suggests that nitric oxide metabolism is altered in diabetes, potentially leading to reduced bioavailability.
- Vascular responsiveness to nitric oxide may be impaired in diabetic individuals, contributing to endothelial dysfunction.
- These alterations in nitric oxide pathways are implicated in the pathogenesis of common diabetic vascular complications.
Conclusions:
- Nitric oxide plays a critical role in the development of diabetes-related vascular disease.
- Deficiencies in nitric oxide metabolism and function are key pathogenic factors in diabetic vasculopathy.
- Therapies aimed at restoring or enhancing nitric oxide pathways may offer significant benefits for patients with diabetes.
Abstract:
Patients with insulin-dependent diabetes mellitus are at high risk for vascular disorders such as hypertension, nephropathy, and retinopathy. The most common cause of morbidity and mortality in patients with insulin-dependent diabetes is vascular disease. Despite ongoing research, the pathogenesis of vascular disease in diabetes remains unclear. In recent years, numerous investigators have examined the role of the endothelium-derived relaxing factor, nitric oxide, in the disease state of hypertension and its complications. We review the role of nitric oxide in the development of diabetes-related vascular disease and discuss findings suggesting that nitric oxide metabolism and vascular responsiveness to nitric oxide are altered in diabetes. Patients with diabetes may benefit from therapy that addresses this pathogenic deficiency.