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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...
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,...
Antihypertensive Drugs: Angiotensin II Receptor Blockers01:30

Antihypertensive Drugs: Angiotensin II Receptor Blockers

In the renin-angiotensin-aldosterone system, a hormone called angiotensin II plays a crucial role. It binds to the AT1 receptors in vascular smooth muscles coupled with Gq proteins. The activation of these receptors activates an enzyme called phospholipase C, which releases two molecules: inositol trisphosphate and diacylglycerol. These molecules cause a chain reaction that leads to the phosphorylation of myosin light chains and promotes interaction between actin and myosin, leading to smooth...
Antihypertensive Drugs: Angiotensin-Converting Enzyme Inhibitors01:30

Antihypertensive Drugs: Angiotensin-Converting Enzyme Inhibitors

Angiotensin-converting enzyme (ACE), a vital component of the renin-angiotensin-aldosterone system, is abundant in lung endothelial cells. ACE converts the inactive decapeptide, angiotensin I, into the active octapeptide, angiotensin II. This potent vasoconstrictor narrows blood vessels, increasing resistance to blood flow and elevating blood pressure. Angiotensin II also stimulates aldosterone production, encouraging kidney cells to reabsorb more sodium and water from urine, thereby increasing...
Antihypertensive Drugs: Action of β1 Blockers01:17

Antihypertensive Drugs: Action of β1 Blockers

β1-receptors are primarily located in the heart and kidneys. In cardiac myocytes, these receptors interact with neurotransmitters released by the sympathetic nervous system during heightened activity or danger. As a result, β1-receptors get activated, initiating a series of biochemical processes. Excessive activation of beta receptors due to chronic stress can abnormally increase heart rate and contractility, resulting in high blood pressure or hypertension. To counteract this, β1-blockers...
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.

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Related Experiment Video

Updated: Jul 19, 2026

A Modified Two Kidney One Clip Mouse Model of Renin Regulation in Renal Artery Stenosis
08:21

A Modified Two Kidney One Clip Mouse Model of Renin Regulation in Renal Artery Stenosis

Published on: October 26, 2020

The (pro)renin receptor: therapeutic consequences.

Geneviève Nguyen, A H Jan Danser

    Expert Opinion on Investigational Drugs
    |September 23, 2006
    PubMed
    Summary

    Blockers of the renin-angiotensin system may have additional benefits beyond blocking angiotensin. A newly discovered (pro)renin receptor suggests novel therapeutic targets for cardiovascular disease.

    Area of Science:

    • Cardiovascular Science
    • Molecular Biology
    • Pharmacology

    Background:

    • Renin-angiotensin system (RAS) blockers are crucial for cardiovascular disease management.
    • Their benefits are traditionally attributed to inhibiting angiotensin generation or action.
    • Angiotensin generation relies on renin and prorenin uptake, potentially mediated by a newly identified (pro)renin receptor.

    Discussion:

    • The cloned (pro)renin receptor exhibits unexpected angiotensin-independent effects.
    • This suggests that renin and/or prorenin can act as agonists for this receptor.
    • This finding challenges the conventional understanding of RAS blockade mechanisms.

    Key Insights:

    • The (pro)renin receptor mediates both angiotensin-dependent and -independent pathways.

    More Related Videos

    Improved Renal Denervation Mitigated Hypertension Induced by Angiotensin II Infusion
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    Improved Renal Denervation Mitigated Hypertension Induced by Angiotensin II Infusion

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    Receptor Autoradiography Protocol for the Localized Visualization of Angiotensin II Receptors
    12:03

    Receptor Autoradiography Protocol for the Localized Visualization of Angiotensin II Receptors

    Published on: June 7, 2016

    Related Experiment Videos

    Last Updated: Jul 19, 2026

    A Modified Two Kidney One Clip Mouse Model of Renin Regulation in Renal Artery Stenosis
    08:21

    A Modified Two Kidney One Clip Mouse Model of Renin Regulation in Renal Artery Stenosis

    Published on: October 26, 2020

    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

    Receptor Autoradiography Protocol for the Localized Visualization of Angiotensin II Receptors
    12:03

    Receptor Autoradiography Protocol for the Localized Visualization of Angiotensin II Receptors

    Published on: June 7, 2016

  • Renin and prorenin may have direct signaling roles via this receptor.
  • This receptor represents a novel target for therapeutic intervention.

    • Outlook:

    • Development of (pro)renin receptor blockers is a promising therapeutic strategy.
    • These blockers could offer dual action: inhibiting tissue angiotensin generation and blocking renin/prorenin signaling.
    • This offers a new avenue for treating cardiovascular diseases.