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Hormonal and local factors in hypertension
1Department of Internal Medicine, University of Texas Southwestern Medical Center, Dallas 75235-8899.
Insights
The exact cause of essential hypertension is unknown. This review explores the roles of hormones like hyperinsulinemia and factors from the endothelium in its development.
Area of Science:
- Cardiovascular Physiology
- Endocrinology
- Hypertension Research
Background:
- Primary (essential) hypertension's etiology remains largely unknown.
- Multiple circulating hormones and endothelium-derived factors are implicated.
- Understanding these factors is crucial for developing effective treatments.
Purpose of the Study:
- To review current evidence on the involvement of specific factors in primary hypertension.
- To highlight the roles of hyperinsulinemia, the renin-angiotensin system, and atrial natriuretic factor.
- To examine the contribution of endothelium-derived factors: prostacyclin, endothelium-derived relaxing factor, and endothelin.
Main Methods:
- Literature review of recent evidence.
- Synthesis of findings on hormonal and endothelial influences.
- Focus on key physiological systems and molecules.
Main Results:
- Hyperinsulinemia may contribute to hypertension.
- The renin-angiotensin system plays a significant role.
- Atrial natriuretic factor's involvement is under investigation.
- Endothelium-derived factors (prostacyclin, EDRF, endothelin) exhibit complex regulatory functions.
Conclusions:
- Several hormonal and endothelial factors are likely involved in primary hypertension.
- Further research is needed to elucidate the precise mechanisms.
- Targeting these factors may offer therapeutic strategies for hypertension.
Abstract:
The cause of primary (essential) hypertension remains unknown, but a number of circulating hormones and endothelium-derived factors are probably involved. This review summarizes recent evidence on the roles of hyperinsulinemia, the renin-angiotensin system, atrial natriuretic factor, and three endothelium-derived factors--prostacyclin, endothelium-derived relaxing factor, and endothelin.