Jove
Visualize
Contact Us
JoVE
x logofacebook logolinkedin logoyoutube logo
ABOUT JoVE
OverviewLeadershipBlogJoVE Help Center
AUTHORS
Publishing ProcessEditorial BoardScope & PoliciesPeer ReviewFAQSubmit
LIBRARIANS
TestimonialsSubscriptionsAccessResourcesLibrary Advisory BoardFAQ
RESEARCH
JoVE JournalMethods CollectionsJoVE Encyclopedia of ExperimentsArchive
EDUCATION
JoVE CoreJoVE BusinessJoVE Science EducationJoVE Lab ManualFaculty Resource CenterFaculty Site
Terms & Conditions of Use
Privacy Policy
Policies

Related Concept Videos

Nitric Oxide Signaling Pathway01:28

Nitric Oxide Signaling Pathway

5.1K
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...
5.1K
Paracrine Signaling01:21

Paracrine Signaling

55.3K
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...
55.3K
Antianginal Drugs: Nitrates and β-Blockers01:16

Antianginal Drugs: Nitrates and β-Blockers

677
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....
677
Antihypertensive Drugs: Vasodilators01:23

Antihypertensive Drugs: Vasodilators

595
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...
595
Secondary Messengers in Hormone Action01:26

Secondary Messengers in Hormone Action

2.4K
Water-soluble hormones cannot cross the plasma membrane, so they rely on protein receptors that span the membrane to trigger intracellular signaling pathways. These pathways then activate second messengers inside the cell, including cAMP or calcium ions.
Many hormones bind to transmembrane G protein-coupled receptors that connect to regulatory G proteins. These G proteins can then activate enzymes such as adenylyl cyclase or phospholipase C. Adenylyl cyclase converts ATP to cAMP, activating...
2.4K
Hormonal Regulation01:33

Hormonal Regulation

33.5K
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.
33.5K

You might also read

Related Articles

Articles linked to this work by shared authors, journal, and citation graph.

Sort by
Same author

The crucible of resilience: hormesis as the unifying principle of evolution, genetics, and epigenetics.

Archives of toxicology·2026
Same author

Hormesis in biomedical and toxicological models: A generalizable phenomenon induced by per- and polyfluoroalkyl agents.

Chemico-biological interactions·2026
Same author

Canine environmental health: An EPA blind spot? Canine physiology, environmental exposure, and the regulatory gap in U.S. policy.

Regulatory toxicology and pharmacology : RTP·2026
Same author

Hormetic effects of per- and polyfluoroalkyl substances on ecologically relevant animal models: Generality, quantitative features, and risk assessment implications.

Environmental pollution (Barking, Essex : 1987)·2026
Same author

How the US NAS BEAR I Genetics Panel scientific misconduct could have been avoided, but was not.

Journal of occupational and environmental hygiene·2026
Same author

BEAR I Genetics Panel: An unexpected and troubling historical twist: The untold story of Hermann Muller's significant scientific confusion.

Journal of occupational and environmental hygiene·2026

Related Experiment Video

Updated: Aug 10, 2025

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

4.0K

Nitric oxide and hormesis.

Edward J Calabrese1, Evgenios Agathokleous2, Gaurav Dhawan3

  • 1Department of Environmental Health Sciences, Morrill I, N344, University of Massachusetts, Amherst, MA, 01003, USA.

Nitric Oxide : Biology and Chemistry
|February 10, 2023
PubMed
Summary
This summary is machine-generated.

Nitric oxide (NO) often exhibits hormetic-biphasic dose responses in biomedical research, impacting areas like wound healing and tumor promotion. Understanding these NO hormetic effects is crucial for study design and clinical trial success.

Keywords:
Biphasic dose responseHormesisNitric oxideSperm preservationTumor promotionWound healing

More Related Videos

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

2.4K
Application of Genetically Encoded Fluorescent Nitric Oxide (NO•) Probes, the geNOps, for Real-time Imaging of NO• Signals in Single Cells
08:32

Application 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

12.9K

Related Experiment Videos

Last Updated: Aug 10, 2025

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

4.0K
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

2.4K
Application of Genetically Encoded Fluorescent Nitric Oxide (NO•) Probes, the geNOps, for Real-time Imaging of NO• Signals in Single Cells
08:32

Application 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

12.9K

Area of Science:

  • Biomedical Research
  • Pharmacology
  • Toxicology

Background:

  • Nitric oxide (NO) plays a critical role in various physiological processes.
  • Hormesis, a dose-response phenomenon characterized by low-dose stimulation and high-dose inhibition, is increasingly recognized in biological systems.

Purpose of the Study:

  • To assess the prevalence and implications of nitric oxide (NO)-induced hormetic-biphasic dose-response relationships in biomedical research.
  • To highlight the significance of NO hormesis in specific research areas and its translational potential.

Main Methods:

  • Literature review and assessment of published studies reporting NO-induced hormetic effects.
  • Analysis of mechanistic data and translational applications of NO hormesis.
  • Examination of NO-induced biphasic responses across various organs and cell types.

Main Results:

  • A substantial body of evidence demonstrates NO-induced hormetic effects, particularly in wound healing, tumor promotion, and sperm biology.
  • NO-induced biphasic responses are documented across diverse organs (bone, cardiovascular, immune, intestine, neuronal) and cell types.
  • NO biology is significantly influenced by hormetic processes, affecting low-dose stimulation and overall biological activity.

Conclusions:

  • Nitric oxide (NO) biology is substantially mediated by hormetic processes, evidenced by widespread biphasic dose responses.
  • Understanding NO-induced hormesis is critical for optimizing study design, statistical power, and the success of clinical trials.
  • Further development of research into NO hormesis is needed for broader translational applications in medicine.