Video Experimental Relacionado
Updated: Sep 2, 2025
08:23
Chemiluminescence-based Assays for Detection of Nitric Oxide and its Derivatives from Autoxidation and Nitrosated Compounds
Published on: February 16, 2022
4.3K
La señalización del óxido nítrico en la salud y la enfermedad
Jon O Lundberg1, Eddie Weitzberg1
1Department of Physiology and Pharmacology, Karolinska Institutet, Stockholm, Sweden.
Cell
|August 5, 2022
Resumen
El óxido nítrico (NO), un gas producido por las células de los mamíferos, regula los procesos fisiológicos vitales. Los avances recientes exploran nuevas formas de aumentar la bioactividad del NO para obtener beneficios terapéuticos y nutricionales.
Área de la Ciencia:
- La bioquímica
- Fisiología
- Biología molecular
Sus antecedentes:
- Las células de los mamíferos generan el gas diatómico óxido nítrico (NO), un descubrimiento que ha fascinado a los biólogos durante décadas.
- El NO regula diversos procesos fisiológicos, incluida la función cardiovascular, el metabolismo, la neurotransmisión y la inmunidad.
- La señalización NO aberrante está implicada en trastornos importantes como enfermedades cardiovasculares, diabetes y cáncer.
Objetivo del estudio:
- Revisar la biología fundamental del óxido nítrico (NO).
- Para resaltar los avances recientes en la comprensión de la biosíntesis de NO y la transducción de señales.
- Discutir nuevas estrategias para mejorar la bioactividad del NO con aplicaciones terapéuticas y nutricionales.
Principales métodos:
- Revisión de la literatura sobre la biosíntesis y las vías de señalización del NO.
- Análisis de investigaciones recientes sobre el papel del NO en la salud y las enfermedades.
- Exploración de enfoques terapéuticos y nutricionales emergentes dirigidos al NO.
Principales resultados:
- El NO es un regulador crítico en múltiples sistemas fisiológicos.
- Las complejidades de la bioquímica del NO continúan dando nuevos conocimientos.
- Las estrategias emergentes se centran en aumentar la bioactividad del NO.
Conclusiones:
- El óxido nítrico (NO) juega un papel crucial en la fisiología y las enfermedades de los mamíferos.
- La investigación continua sobre la biología del NO ofrece potencial para nuevos tratamientos.
- El aumento de la bioactividad del NO presenta perspectivas terapéuticas y nutricionales prometedoras.
Palabras clave:
S-nitrosotiol y sus derivadosPresión arterialel cáncerEnfermedad cardiovascularEl nitratoEl nitritoMás Videos Relacionados
08:58En Face Detection of Nitric Oxide and Superoxide in Endothelial Layer of Intact Arteries
Published on: February 25, 2016
9.7K
08:32Application of Genetically Encoded Fluorescent Nitric Oxide (NO•) Probes, the geNOps, for Real-time Imaging of NO• Signals in Single Cells
Published on: March 16, 2017
13.0K
Videos de Conceptos Relacionados
01:28Nitric Oxide Signaling Pathway
5.2K
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...
5.2K
01:21Paracrine Signaling
55.5K
Paracrine signaling allows cells to communicate with their immediate neighbors via secretion of signaling molecules. Such a signal can only trigger a response in nearby target cells because the signal molecules degrade quickly or are inactivated if not taken up. Prominent examples of paracrine signaling include nitric oxide signaling in blood vessels, synaptic signaling of neurons, the blood clotting system, tissue repair/wound healing, and local allergic skin reactions. Nitric oxide as a...
55.5K
01:26Coronary Artery Disease II: Pathophysiology
30
Coronary Artery Disease (CAD) originates from a series of events that impair the function of coronary arteries, the blood vessels responsible for delivering oxygen-rich blood to the heart muscle. The pathophysiology of CAD is closely linked to atherosclerosis, a chronic inflammatory and lipid-driven condition affecting the vascular endothelium.1. Endothelial DamageThe process begins with damage to the vascular endothelium, which serves as a protective barrier between the blood and the vessel...
30
01:32Types of Signaling Molecules
10.6K
In multicellular organisms, many molecules transmit signals between cells to pass information. These signals vary in complexity and include small peptides, nucleotides, steroids, fatty acid derivatives, and dissolved gases such as nitric oxide. Some signaling molecules diffuse through the plasma membrane to act locally between neighboring cells or travel long distances. Others remain attached to the cell surface, transmitting information to other cells only when they make contact. In some...
10.6K
01:23Antihypertensive Drugs: Vasodilators
628
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...
628
01:16Antianginal Drugs: Nitrates and β-Blockers
721
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....
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....
721