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Related Concept Videos

Antihypertensive Drugs: Vasodilators01:23

Antihypertensive Drugs: Vasodilators

Vasodilators, primarily affecting the smooth muscles within arterial and venous walls, are commonly used for hypertension treatment. Medications such as minoxidil and hydralazine primarily target arteries and arterioles, while sodium nitroprusside acts on arterioles and venules. Minoxidil, functioning as a prodrug, is metabolized by hepatic sulfotransferase into its active form, minoxidil sulfate, after oral administration. This metabolite binds to the sulfonylurea receptor (SUR) component of...
Antianginal Drugs: Nitrates and β-Blockers01:16

Antianginal Drugs: Nitrates and β-Blockers

In cardiovascular health, antianginal drugs combat angina pectoris — a condition marked by chest pain owing to diminished blood flow to the heart.
Organic nitrates,  such as nitroglycerin, play a pivotal role. Once metabolized, they liberate nitric oxide, a molecular marvel. Nitric oxide triggers guanylyl cyclase and augments cGMP production. This biochemical cascade orchestrates the relaxation of vascular smooth muscles, ushering in vasodilation and enhancing coronary blood flow. Administered...
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: 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...
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...
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...

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Related Experiment Video

Updated: Jul 3, 2026

The Antihypertensive Effects and Mechanisms of Huotan Jiedu Tongluo Decoction in Rats with H-Type Hypertension
05:57

The Antihypertensive Effects and Mechanisms of Huotan Jiedu Tongluo Decoction in Rats with H-Type Hypertension

Published on: May 17, 2024

Hypotensive natural products: current status.

Monica Rosa Loizzo1, Rosa Tundis, Federica Menichini

  • 1Department of Pharmaceutical Sciences, Faculty of Pharmacy, Nutrition and Health Sciences, University of Calabria, I-87036 Rende (CS) Italy. mr.loizzo@unical.it

Mini Reviews in Medicinal Chemistry
|August 5, 2008
PubMed
Summary

Hypertension, a silent killer, poses significant cardiovascular and renal risks globally. Research into plant-derived compounds offers promising natural antihypertensive agents for drug development.

Related Experiment Videos

Last Updated: Jul 3, 2026

The Antihypertensive Effects and Mechanisms of Huotan Jiedu Tongluo Decoction in Rats with H-Type Hypertension
05:57

The Antihypertensive Effects and Mechanisms of Huotan Jiedu Tongluo Decoction in Rats with H-Type Hypertension

Published on: May 17, 2024

Area of Science:

  • Pharmacology and Medicinal Chemistry
  • Cardiovascular Research
  • Natural Product Chemistry

Background:

  • Hypertension is a prevalent, progressive disorder with major risks for cardiovascular and renal diseases.
  • It is a growing global public health concern, with significant variations in awareness, treatment, and control worldwide.
  • Often asymptomatic, hypertension is termed a 'silent killer' due to its potential for fatal outcomes like heart attack or stroke.

Purpose of the Study:

  • To review the medicinal chemistry of naturally occurring antihypertensive agents.
  • To highlight the expanding research in plant-derived substances as potential new antihypertensive drugs.
  • To discuss various mechanisms of action for these natural compounds.

Main Methods:

  • Literature review of plant-derived substances with antihypertensive properties.
  • Analysis of the medicinal chemistry of identified compounds.
  • Categorization based on mechanisms of action (e.g., alkaloids, flavonoids, terpenoids).

Main Results:

  • Numerous plant-derived compounds exhibit potential as antihypertensive agents.
  • These natural substances act through diverse pharmacological mechanisms.
  • Key compound classes include alkaloids, flavonoids, and terpenoids.

Conclusions:

  • Naturally occurring compounds represent a significant area for developing novel antihypertensive therapies.
  • Medicinal chemistry is crucial for understanding and optimizing these plant-derived agents.
  • Further research into these natural products could lead to effective treatments for hypertension.