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Related Concept Videos

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,...
Hypertension IV: Drug Therapy and Lifestyle Modifications01:28

Hypertension IV: Drug Therapy and Lifestyle Modifications

Multiple classes of antihypertensive medications are employed in treating hypertension. The most commonly recommended first-line treatments include:Thiazide Diuretics, such as chlorthalidone, increase sodium and water excretion from the body, reducing blood volume and blood pressure.Angiotensin-converting enzyme inhibitors, like lisinopril, block the conversion of angiotensin I to II, a potent vasoconstrictor lowering blood pressure.Angiotensin II Receptor Blockers (ARBs) prevent angiotensin II...
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: 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...
Heart Failure V: Medical Management01:30

Heart Failure V: Medical Management

Medical Management of Acute Decompensated Heart Failure (ADHF)The primary goals of therapy for patients hospitalized with acute decompensated heart failure (ADHF) include:Relieving symptomsOptimizing volume statusSupporting oxygenation and ventilationMaintaining cardiac output (CO) and end-organ perfusionIdentifying and addressing the cause of ADHFPreventing complicationsProviding patient education on factors precipitating HF exacerbationPlanning for dischargeOngoing monitoring and assessment...
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...

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Related Experiment Video

Updated: Jun 2, 2026

Improved Home Blood Pressure Control by CT-guided Ozone-mediated Renal Denervation for Patients with Resistant Hypertension
04:37

Improved Home Blood Pressure Control by CT-guided Ozone-mediated Renal Denervation for Patients with Resistant Hypertension

Published on: June 6, 2025

Aliskiren-based stepped-care treatment algorithm provides effective blood pressure control.

D Richter1, C Mickel, S Acharya

  • 1Novartis Pharmaceuticals Corporation, East Hanover, NJ, USA.

International Journal of Clinical Practice
|April 15, 2011
PubMed
Summary

An aliskiren-based stepped-care regimen effectively managed mild-to-moderate hypertension, with 86% of patients reaching blood pressure goals. This treatment approach, including hydrochlorothiazide and amlodipine, proved well-tolerated and successful.

Related Experiment Videos

Last Updated: Jun 2, 2026

Improved Home Blood Pressure Control by CT-guided Ozone-mediated Renal Denervation for Patients with Resistant Hypertension
04:37

Improved Home Blood Pressure Control by CT-guided Ozone-mediated Renal Denervation for Patients with Resistant Hypertension

Published on: June 6, 2025

Area of Science:

  • Cardiovascular Medicine
  • Pharmacology
  • Hypertension Management

Background:

  • Recent hypertension guidelines advocate individualized stepped-care treatment for mild-to-moderate cases.
  • Achieving blood pressure (BP) targets is crucial for patient outcomes.

Purpose of the Study:

  • To evaluate the probability of achieving BP targets using an aliskiren-based stepped-care regimen.
  • To assess the efficacy and tolerability of incremental add-on therapy in hypertension management.

Main Methods:

  • A 24-week, open-label, non-comparator study in mild-to-moderate hypertensive patients.
  • Sequential 4-week treatment periods with aliskiren, followed by hydrochlorothiazide (HCTZ), and amlodipine if needed.
  • Primary endpoint: cumulative probability of patients achieving target BP.

Main Results:

  • 232 out of 256 (90.6%) patients completed the study.
  • The estimated cumulative probability of reaching BP target was 86.12% at study endpoint.
  • The stepped-care regimen was well tolerated at maximal recommended doses.

Conclusions:

  • An aliskiren-based stepped-care regimen, incorporating HCTZ and amlodipine, effectively achieves BP goals in approximately 90% of mild-to-moderate hypertensive patients.
  • This treatment strategy demonstrates significant efficacy and good tolerability for hypertension management.