Related Experiment Video
Updated: Sep 26, 2026

Receptor Autoradiography Protocol for the Localized Visualization of Angiotensin II Receptors
Published on: June 7, 2016
Obesity-associated activation of angiotensin and endothelin in the cardiovascular system
Matthias Barton1, Renata Carmona, Jana Ortmann
1Medical Policlinic, Department of Internal Medicine, University Hospital Zürich, Rämistrasse 100, CH-8091 Zürich, Switzerland. barton@swissonline.ch
Abstract:
The renin-angiotensin system (RAS) and the endothelin system have been implicated in the pathogenesis of human cardiovascular and renal diseases, and inhibition of the RAS markedly improves morbidity and survival. Obesity in humans is associated with an increased risk for the development of hypertension, atherosclerosis and focal-segmental glomerulosclerosis, however the exact mechanisms underlying these pathologies in obese individuals are not known. This article discusses the clinical importance of obesity and the current evidence for local activation of the renin-angiotensin system and its interactions with the endothelin system in obesity and the cardiovascular pathologies associated with it.
Insights
Obesity activates the renin-angiotensin system (RAS) and endothelin system, contributing to cardiovascular diseases. Understanding these interactions is crucial for managing obesity-related hypertension and atherosclerosis.
Area of Science:
- Cardiovascular Science
- Renal Medicine
- Endocrinology
Background:
- The renin-angiotensin system (RAS) and endothelin system are key in cardiovascular and renal diseases.
- Obesity is linked to hypertension, atherosclerosis, and glomerulosclerosis, but mechanisms are unclear.
- RAS inhibition improves outcomes in cardiovascular diseases.
Purpose of the Study:
- To discuss the clinical significance of obesity.
- To review evidence for local RAS activation in obesity.
- To explore RAS and endothelin system interactions in obesity-related cardiovascular pathologies.
Main Methods:
- Literature review and synthesis of existing evidence.
- Discussion of clinical data and mechanistic insights.
- Focus on the interplay between metabolic and cardiovascular systems.
Main Results:
- Evidence suggests local RAS activation in obesity.
- The endothelin system may interact with RAS in obese individuals.
- These interactions likely contribute to cardiovascular pathologies.
Conclusions:
- Obesity-associated cardiovascular and renal diseases may involve local RAS and endothelin system activation.
- Further research into these interactions could reveal novel therapeutic targets.
- Managing obesity is critical for preventing associated cardiovascular complications.
Related Concept Videos
Hypertension II: Pathophysiology
Antihypertensive Drugs: Angiotensin-Converting Enzyme Inhibitors
Hormonal Regulation of Blood Pressure
Epinephrine and Norepinephrine
The adrenal medulla releases epinephrine and norepinephrine, catecholamines that enhance and extend the sympathetic or "fight or flight" physiological response. These hormones escalate heart rate and the force of contraction while...
Obesity
Heart Failure II: Pathophysiology
Antihypertensive Drugs: Angiotensin II Receptor Blockers
