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Related Concept Videos

Nitric Oxide Signaling Pathway01:28

Nitric Oxide Signaling Pathway

Nitric oxide (NO), an inorganic gas, acts as a potent second messenger in most animal and plant tissues. NO diffuses out of the cells that produce it and enters the neighboring cells to generate a downstream response. NO synthase (NOS) catalyzes NO production by the deamination of the amino acid arginine. There are three isoforms of NOS. Endothelial cells have endothelial NOS (eNOS), nerve and muscle cells have neuronal NOS (nNOS), and macrophages produce inducible NOS (iNOS) upon exposure to...
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: 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...
Regulation of the Cardiovascular System01:27

Regulation of the Cardiovascular System

The regulation of the cardiovascular system allows the body to adapt to various demands and maintain homeostasis.
The regulation of the cardiovascular system involves the autonomic nervous system (ANS), baroreceptors, and chemoreceptors, ensuring that heart rate and blood pressure are appropriately modulated in response to varying physiological demands.
The ANS comprises two main divisions: the sympathetic and parasympathetic nervous systems. The sympathetic nervous system enhances...
Disorders of the Autonomic Nervous System01:18

Disorders of the Autonomic Nervous System

The autonomic nervous system (ANS) is an intricate network of nerves that controls functions such as the regulation of heart rate, digestion, and blood pressure regulation. When this system malfunctions, it can lead to various disorders that affect multiple bodily functions. One common feature of many autonomic disorders is the involvement of smooth blood vessels, which play a crucial role in regulating blood flow throughout the body.
Raynaud's disease, also known as Raynaud's phenomenon, is a...
Overview of the Cardiovascular System01:14

Overview of the Cardiovascular System

The cardiovascular system is a vital transportation system in the body. It comprises the heart and blood vessels and facilitates the exchange of gases, nutrients, and waste products.
Heart
The heart is the central pump of the cardiovascular system that circulates blood throughout the body. It comprises two atria receiving the blood and two ventricles pumping blood out of the heart. Their rhythmic contractions, called heartbeats, ensure that blood flow remains continuous.
Blood Vessels
Blood...

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Related Experiment Video

Updated: Jul 18, 2026

Chemiluminescence-based Assays for Detection of Nitric Oxide and its Derivatives from Autoxidation and Nitrosated Compounds
08:23

Chemiluminescence-based Assays for Detection of Nitric Oxide and its Derivatives from Autoxidation and Nitrosated Compounds

Published on: February 16, 2022

Nitric oxide and cardiovascular system.

Atiye Cengel1, Asife Sahinarslan

  • 1Department of Cardiology, Medical Faculty, Gazi University, Ankara, Turkey. acengel@gazi.edu.tr

Anadolu Kardiyoloji Dergisi : AKD = the Anatolian Journal of Cardiology
|December 13, 2006
PubMed
Summary

Nitric oxide is crucial for endothelial function, regulating blood vessels. Its deficiency, or endothelial dysfunction, precedes cardiovascular diseases, necessitating better diagnosis and treatment.

Area of Science:

  • Cardiovascular Science
  • Endothelial Biology
  • Molecular Medicine

Background:

  • The endothelium regulates critical physiological processes like permeability, vascular tone, homeostasis, and inflammation.
  • Nitric oxide (NO) is the primary signaling molecule mediating endothelial functions.
  • Nitric oxide deficiency, termed endothelial dysfunction, is an early pathological event in numerous cardiovascular diseases.

Purpose of the Study:

  • To review the pivotal role of nitric oxide in cardiovascular health.
  • To discuss the latest advancements in diagnosing and treating endothelial dysfunction.

Main Methods:

  • Literature review focusing on nitric oxide's role in endothelial function.
  • Analysis of current diagnostic and therapeutic strategies for endothelial dysfunction.

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En Face Detection of Nitric Oxide and Superoxide in Endothelial Layer of Intact Arteries
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En Face Detection of Nitric Oxide and Superoxide in Endothelial Layer of Intact Arteries

Published on: February 25, 2016

Preparation of Rat Skeletal Muscle Homogenates for Nitrate and Nitrite Measurements
07:19

Preparation of Rat Skeletal Muscle Homogenates for Nitrate and Nitrite Measurements

Published on: July 29, 2021

Related Experiment Videos

Last Updated: Jul 18, 2026

Chemiluminescence-based Assays for Detection of Nitric Oxide and its Derivatives from Autoxidation and Nitrosated Compounds
08:23

Chemiluminescence-based Assays for Detection of Nitric Oxide and its Derivatives from Autoxidation and Nitrosated Compounds

Published on: February 16, 2022

En Face Detection of Nitric Oxide and Superoxide in Endothelial Layer of Intact Arteries
08:58

En Face Detection of Nitric Oxide and Superoxide in Endothelial Layer of Intact Arteries

Published on: February 25, 2016

Preparation of Rat Skeletal Muscle Homogenates for Nitrate and Nitrite Measurements
07:19

Preparation of Rat Skeletal Muscle Homogenates for Nitrate and Nitrite Measurements

Published on: July 29, 2021

Main Results:

  • Nitric oxide is essential for maintaining cardiovascular homeostasis.
  • Endothelial dysfunction is a common precursor to conditions such as heart failure, hypertension, and diabetes.
  • Recent progress has been made in identifying and managing endothelial dysfunction.

Conclusions:

  • Restoring adequate nitric oxide levels is vital for cardiovascular health.
  • Improved diagnostic tools and targeted treatments are emerging for endothelial dysfunction.