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Related Concept Videos

Heart Failure Drugs: Inhibitors of Renin-Angiotensin System01:26

Heart Failure Drugs: Inhibitors of Renin-Angiotensin System

The activation of the sympathetic nervous system and the renin-angiotensin-aldosterone system (RAAS) contributes to cardiac remodeling, and inhibiting the RAAS is a pharmacological target in heart failure management. As a result, neurohumoral modulation is a crucial treatment principle for managing heart failure. This approach involves using medications like ACE inhibitors (ACEIs), angiotensin receptor blockers (ARBs), β-blockers, mineralocorticoid receptor antagonists (MRAs), and neutral...
Adrenergic Antagonists: ɑ and β-Receptor Blockers01:31

Adrenergic Antagonists: ɑ and β-Receptor Blockers

Third-generation β-blockers, such as labetalol and carvedilol, represent a significant advancement in managing cardiovascular conditions. Unlike conventional β-blockers, which can induce peripheral vasoconstriction, third-generation drugs block α1 adrenoceptors. This promotes vasodilation through several mechanisms, such as increased nitric oxide production, inhibition of calcium ion entry, opening of potassium ion channels, and antioxidant action. Labetalol, for instance, is clinically...
Hormonal Regulation01:33

Hormonal Regulation

The renin-aldosterone system is an endocrine system which guides the renal absorption of water and electrolytes, thus managing blood pressure and osmoregulation. Activation of the system begins in the kidneys with a small cluster of cells adjacent to the afferent and efferent blood vessels of the renal corpuscle. As the nephrons are filtering blood, juxtaglomerular cells monitor blood pressure. If they detect a decrease in pressure, they release the hormone renin into the bloodstream.
Antihypertensive Drugs: Direct Renin Inhibitors01:25

Antihypertensive Drugs: Direct Renin Inhibitors

The renin-angiotensin-aldosterone system (RAAS) is an intricate physiological pathway involving numerous enzymes and hormones, including renin, angiotensin-converting enzyme (ACE), angiotensin I and II, and aldosterone. Imbalances within this system increase the production of angiotensin II and aldosterone. Increased angiotensin II levels promote vasoconstriction and blood pressure elevation. Concurrently, higher aldosterone levels stimulate sodium and water reabsorption in the kidneys,...
Adrenal Gland Disorders01:27

Adrenal Gland Disorders

Adrenal gland disorders manifest when the production of adrenal hormones deviates from the norm, resulting in either excessive or insufficient concentrations.
Adrenal insufficiency, characterized by insufficient cortisol and aldosterone production, leads to conditions like Addison's disease. This disorder, affecting the adrenal cortex, exhibits symptoms such as skin bronzing, dehydration, low blood pressure, fatigue, and weight loss. Congenital adrenal hyperplasia, a genetic ailment causing...
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Antihypertensive Drugs: Potassium-Sparing Diuretics

Liddle syndrome is a genetically inherited form of hypertension characterized by the overactivity of epithelial sodium channels in the nephron, the functional unit of the kidney. This heightened activity leads to increased sodium reabsorption and excessive excretion of potassium. To counteract this, potassium-sparing diuretics such as amiloride are used. They function by blocking these sodium channels, thereby reducing the influx of sodium into the epithelial cells and minimizing the loss of...

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Related Experiment Video

Updated: May 8, 2026

A Novel Method: Super-selective Adrenal Venous Sampling
06:08

A Novel Method: Super-selective Adrenal Venous Sampling

Published on: September 15, 2017

Primary aldosteronism - recent progress and current concepts.

Sylwia Kołodziejczyk-Kruk1, Włodzimierz Januszewicz, Mariola Pęczkowska

  • 1Department of Hypertension, Institute of Cardiology, Warsaw, Poland. skolodziejczyk@ikard.pl

Endokrynologia Polska
|September 5, 2013
PubMed
Summary

Primary aldosteronism, a common cause of hypertension, affects 6-13% of patients. Research advances understanding of aldosterone

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Improved Renal Denervation Mitigated Hypertension Induced by Angiotensin II Infusion
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Last Updated: May 8, 2026

A Novel Method: Super-selective Adrenal Venous Sampling
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Published on: September 15, 2017

Improved Renal Denervation Mitigated Hypertension Induced by Angiotensin II Infusion
08:35

Improved Renal Denervation Mitigated Hypertension Induced by Angiotensin II Infusion

Published on: May 26, 2022

Area of Science:

  • Endocrinology
  • Cardiovascular Medicine
  • Nephrology

Background:

  • Primary aldosteronism (PA) is the most frequent cause of hormone-related hypertension, affecting 6-13% of hypertensive individuals.
  • Prevalence is significantly higher in patients with resistant hypertension.
  • Aldosterone's systemic effects extend beyond the cardiovascular system to other organs.

Purpose of the Study:

  • To review recent advancements in understanding primary aldosteronism.
  • To highlight improvements in diagnostic techniques and genetic discoveries.
  • To discuss current and emerging treatment strategies for PA.

Main Methods:

  • Review of current scientific literature and patient registries.
  • Emphasis on diagnostic advancements, including adrenal vein sampling.
  • Analysis of research on genetic mutations and calcium metabolism in PA.

Main Results:

  • PA significantly impacts cardiovascular health and other organ systems.
  • Adrenal vein sampling is crucial for confirming aldosterone secretion lateralization.
  • New insights into calcium metabolism and potassium channel mutations in PA have emerged.

Conclusions:

  • Primary aldosteronism requires comprehensive understanding due to its widespread effects.
  • Improved diagnostics, particularly adrenal vein sampling, are vital for targeted treatment.
  • Mineralocorticoid receptor antagonists and adrenalectomy remain primary treatment options.