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Nitric Oxide and Endothelin Effects
Research Guide
What is Nitric Oxide and Endothelin Effects?
Nitric Oxide and Endothelin Effects refers to the opposing and interacting actions of endothelial-derived nitric oxide (NO) and endothelin peptides on vascular tone and vascular injury, where NO promotes relaxation and endothelins promote constriction and related pathophysiologic changes.
The literature on Nitric Oxide and Endothelin Effects spans 112,953 works (growth over the last 5 years: N/A). "Nitric oxide release accounts for the biological activity of endothelium-derived relaxing factor" (1987) identified NO as the mediator of endothelium-derived relaxing factor activity, directly linking endothelial signaling to smooth-muscle relaxation. "A novel potent vasoconstrictor peptide produced by vascular endothelial cells" (1988) described endothelin as an endothelial product with potent vasoconstrictor activity, establishing a counter-regulatory endothelial pathway to NO.
Research Sub-Topics
Nitric Oxide Physiology and Signaling Pathways
This sub-topic explores NO production by nitric oxide synthase, its role in vasodilation, and signaling cascades in endothelial cells. Researchers study regulation, bioavailability, and therapeutic modulation.
Endothelin Receptor Antagonism in Vasoconstriction
Investigates endothelin-1 as a potent vasoconstrictor, its receptors ETA/ETB, and antagonists for diseases like pulmonary hypertension. Studies cover peptide discovery, pharmacology, and clinical applications.
Peroxynitrite Formation and Endothelial Injury
This area examines NO-superoxide reactions forming peroxynitrite, leading to oxidative damage and nitrotyrosine formation. Researchers focus on mechanisms, antioxidants, and implications for vascular pathology.
NADPH Oxidase NOX Family in Vascular ROS
Studies the NOX isoforms (NOX1-5, DUOX) as ROS sources in endothelium and smooth muscle, their activation, and crosstalk with NO. Includes genetic models and inhibitors for pathophysiology.
L-Arginine-Nitric Oxide Biosynthetic Pathway
Focuses on eNOS/iNOS/nNOS enzymes, L-arginine transport, BH4 cofactors, and pathway dysregulation in disease. Researchers explore supplementation and uncoupling mechanisms.
Why It Matters
Nitric oxide–endothelin balance is clinically relevant because it determines whether blood vessels dilate appropriately or constrict excessively in cardiovascular and cerebrovascular disease contexts. The mechanistic basis for NO-mediated vasodilation comes from "The obligatory role of endothelial cells in the relaxation of arterial smooth muscle by acetylcholine" (1980), which demonstrated that endothelial cells are required for acetylcholine-induced arterial smooth muscle relaxation, and from Palmer et al. (1987) in "Nitric oxide release accounts for the biological activity of endothelium-derived relaxing factor," which tied that endothelial relaxant signal to NO release. The countervailing vasoconstrictor axis was established by Yanagisawa et al. (1988) in "A novel potent vasoconstrictor peptide produced by vascular endothelial cells," which identified an endothelial-derived peptide (endothelin) with potent constrictor effects. These paired findings explain why therapeutic strategies in hypertension and vascular spasm often conceptually map to either increasing NO bioavailability or reducing endothelin signaling; they also motivate mechanistic attention to oxidative stress, because Beckman et al. (1990) in "Apparent hydroxyl radical production by peroxynitrite: implications for endothelial injury from nitric oxide and superoxide" implicated interactions between NO and superoxide in endothelial injury pathways. At the systems level, Bedard and Krause (2007) in "The NOX Family of ROS-Generating NADPH Oxidases: Physiology and Pathophysiology" synthesized evidence that NADPH oxidases are key sources of reactive oxygen species, providing a concrete route by which ROS can modulate NO signaling and thereby shift vascular tone toward constriction and injury.
Reading Guide
Where to Start
Start with "The obligatory role of endothelial cells in the relaxation of arterial smooth muscle by acetylcholine" (1980) because it establishes the essential endothelium-dependence of a canonical vasodilator response before introducing specific mediators.
Key Papers Explained
A coherent path through the core mechanism begins with "The obligatory role of endothelial cells in the relaxation of arterial smooth muscle by acetylcholine" (1980), which defines the endothelium as necessary for relaxation. Palmer et al. (1987) in "Nitric oxide release accounts for the biological activity of endothelium-derived relaxing factor" then identifies NO release as the mediator of endothelium-derived relaxing factor activity, providing a chemical mechanism for the earlier functional observation. Yanagisawa et al. (1988) in "A novel potent vasoconstrictor peptide produced by vascular endothelial cells" introduces endothelin as an endothelial-derived vasoconstrictor, creating the conceptual opposition to NO. Beckman et al. (1990) in "Apparent hydroxyl radical production by peroxynitrite: implications for endothelial injury from nitric oxide and superoxide" connects NO signaling to oxidative injury chemistry involving superoxide, while Bedard and Krause (2007) in "The NOX Family of ROS-Generating NADPH Oxidases: Physiology and Pathophysiology" provides a framework for ROS sources that can modulate NO-dependent effects.
Paper Timeline
Most-cited paper highlighted in red. Papers ordered chronologically.
Advanced Directions
Within the constraints of this provided paper list, the main frontier is mechanistically integrating NO synthesis ("The L-Arginine-Nitric Oxide Pathway") with ROS source biology ("The NOX Family of ROS-Generating NADPH Oxidases: Physiology and Pathophysiology") and oxidant-interaction injury chemistry ("Apparent hydroxyl radical production by peroxynitrite: implications for endothelial injury from nitric oxide and superoxide") to explain when endothelial signaling favors relaxation versus constriction. A second direction is translating the endothelial dual-output concept—NO as relaxant ("Nitric oxide release accounts for the biological activity of endothelium-derived relaxing factor") and endothelin as constrictor ("A novel potent vasoconstrictor peptide produced by vascular endothelial cells")—into experimentally testable models that separate production, degradation, and receptor-effector coupling.
Papers at a Glance
| # | Paper | Year | Venue | Citations | Open Access |
|---|---|---|---|---|---|
| 1 | Nitric oxide: physiology, pathophysiology, and pharmacology. | 1991 | Pharmacological Reviews | 15.5K | ✕ |
| 2 | Superoxide Dismutase | 1969 | Journal of Biological ... | 12.7K | ✓ |
| 3 | The obligatory role of endothelial cells in the relaxation of ... | 1980 | Nature | 12.0K | ✕ |
| 4 | Studies on the quantitative and qualitative characterization o... | 1967 | PubMed | 10.8K | ✕ |
| 5 | A novel potent vasoconstrictor peptide produced by vascular en... | 1988 | Nature | 10.7K | ✕ |
| 6 | Nitric oxide release accounts for the biological activity of e... | 1987 | Nature | 10.7K | ✕ |
| 7 | Apparent hydroxyl radical production by peroxynitrite: implica... | 1990 | Proceedings of the Nat... | 7.0K | ✓ |
| 8 | The NOX Family of ROS-Generating NADPH Oxidases: Physiology an... | 2007 | Physiological Reviews | 6.7K | ✕ |
| 9 | The L-Arginine-Nitric Oxide Pathway | 1993 | New England Journal of... | 6.7K | ✕ |
| 10 | A modified uronic acid carbazole reaction | 1962 | Analytical Biochemistry | 6.2K | ✕ |
In the News
Bidirectional Regulation of Nitric Oxide and Endothelin-1 in ...
* Review * Open Access 10 October 2025 # Bidirectional Regulation of Nitric Oxide and Endothelin-1 in Cerebral Vasospasm: Mechanisms and Therapeutic Perspectives Katrin Becker1,2,3,\*,†and Kaihui ...
Endothelin Receptor Antagonists for the Treatment of ...
The endothelin system is a highly relevant component of the pathophysiology of hypertension, which is currently unopposed by existing treatment approaches. We examined the role of dual endothelin r...
Novel Nitric Oxide Donors Reverse Endothelin-1-Mediated... : Journal of Cardiovascular Pharmacology
Cardiovascular disease is associated with elevated circulating plasma levels of endothelin-1 (ET-1). Our aim was to compare the ability of the nitric oxide donors (NO-donors) 3-morpholinylsydnonimi...
How blood vessels adapt to high blood pressure: A new ...
**Funding Acknowledgment:**
How blood vessels adapt to high blood pressure: A new ...
**Funding Acknowledgment:**
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Recent Preprints
Bidirectional Regulation of Nitric Oxide and Endothelin-1 in Cerebral Vasospasm: Mechanisms and Therapeutic Perspectives
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Latest Developments
Recent research highlights the bidirectional regulation between nitric oxide (NO) and endothelin-1 (ET-1) in vascular pathophysiology, including mechanisms in cerebral vasospasm and pulmonary hypertension, with therapeutic strategies targeting this axis under investigation as of October 2025 (MDPI, Frontiers).
Sources
Frequently Asked Questions
What are the core opposing vascular actions of nitric oxide and endothelin described in the classic literature?
"Nitric oxide release accounts for the biological activity of endothelium-derived relaxing factor" (1987) demonstrated that NO release explains endothelium-derived relaxing factor activity, providing a direct mechanism for endothelial-dependent relaxation. "A novel potent vasoconstrictor peptide produced by vascular endothelial cells" (1988) described an endothelial-derived peptide (endothelin) with potent vasoconstrictor activity, establishing an opposing endothelial constrictor pathway.
How did researchers establish that the endothelium is required for certain vasodilator responses?
"The obligatory role of endothelial cells in the relaxation of arterial smooth muscle by acetylcholine" (1980) showed that endothelial cells are required for acetylcholine-induced relaxation of arterial smooth muscle. This finding provided the functional foundation for later biochemical identification of NO as the endothelial relaxant mediator in "Nitric oxide release accounts for the biological activity of endothelium-derived relaxing factor" (1987).
How is nitric oxide produced in mammals according to the most-cited synthesis paper in this list?
"The L-Arginine-Nitric Oxide Pathway" (1993) states that nitric oxide is synthesized from the amino acid L-arginine by a family of enzymes, the nitric oxide synthases. This pathway connects cellular metabolism to vascular signaling by explaining how NO can be generated in diverse tissues and cell types.
Which oxidative mechanisms can reduce nitric oxide bioavailability and contribute to endothelial injury?
Beckman et al. (1990) in "Apparent hydroxyl radical production by peroxynitrite: implications for endothelial injury from nitric oxide and superoxide" described interactions between nitric oxide and superoxide with implications for endothelial injury via oxidant chemistry. McCord and Fridovich (1969) in "Superoxide Dismutase" characterized the enzyme that dismutates superoxide radicals, highlighting superoxide as a biologically relevant reactant that can intersect with NO signaling.
Which enzymatic sources of reactive oxygen species are commonly discussed as upstream modulators of NO–endothelin effects?
Bedard and Krause (2007) in "The NOX Family of ROS-Generating NADPH Oxidases: Physiology and Pathophysiology" reviewed multiple homologs of NADPH oxidase (NOX family) as sources of superoxide generation beyond phagocytes. This provides a mechanistic framework for how ROS production can shift endothelial signaling by altering NO-dependent relaxation and related vascular responses.
Which papers from this list are best for understanding measurement and biochemical context relevant to redox effects on vascular signaling?
Paglia and Valentine (1967) in "Studies on the quantitative and qualitative characterization of erythrocyte glutathione peroxidase." described an assay procedure for glutathione peroxidase activity, a key antioxidant enzyme relevant to redox balance. McCord and Fridovich (1969) in "Superoxide Dismutase" provided the foundational characterization of superoxide dismutase, central to interpreting superoxide-driven modulation of NO signaling.
Open Research Questions
- ? How can NO-dependent endothelial relaxation (as functionally established in "The obligatory role of endothelial cells in the relaxation of arterial smooth muscle by acetylcholine") be quantitatively partitioned into NO production versus NO inactivation by superoxide-derived pathways described in "Apparent hydroxyl radical production by peroxynitrite: implications for endothelial injury from nitric oxide and superoxide"?
- ? Which NOX-family sources summarized in "The NOX Family of ROS-Generating NADPH Oxidases: Physiology and Pathophysiology" are most responsible for shifting vascular tone from NO-mediated relaxation toward endothelin-dominant constriction in specific vascular beds?
- ? What mechanistic links connect endothelial production of a potent vasoconstrictor peptide in "A novel potent vasoconstrictor peptide produced by vascular endothelial cells" to changes in NO synthesis capacity described in "The L-Arginine-Nitric Oxide Pathway" under oxidative stress conditions?
- ? How do antioxidant enzyme capacities (as assayable via "Studies on the quantitative and qualitative characterization of erythrocyte glutathione peroxidase." and mechanistically grounded by "Superoxide Dismutase") predict susceptibility to NO–superoxide interactions implicated in "Apparent hydroxyl radical production by peroxynitrite: implications for endothelial injury from nitric oxide and superoxide"?
Recent Trends
The provided topic-level data indicate a large literature base (112,953 works) with 5-year growth reported as N/A. Within the supplied set, later highly cited synthesis work emphasizes expanding mechanistic context beyond simple NO-versus-endothelin antagonism by incorporating ROS sources and chemistry: Bedard and Krause in "The NOX Family of ROS-Generating NADPH Oxidases: Physiology and Pathophysiology" highlights multiple NOX homologs as physiological ROS generators, and Beckman et al. (1990) in "Apparent hydroxyl radical production by peroxynitrite: implications for endothelial injury from nitric oxide and superoxide" frames NO–superoxide interactions as a driver of endothelial injury.
2007Across the most-cited papers, the field’s center of gravity in this list connects endothelial-dependent relaxation (Furchgott and Zawadzki, 1980) to NO identity and biosynthesis (Palmer et al., 1987; "The L-Arginine-Nitric Oxide Pathway," 1993) and to an endothelial-derived vasoconstrictor counter-signal (Yanagisawa et al., 1988), with redox enzymes ("Superoxide Dismutase"; "Studies on the quantitative and qualitative characterization of erythrocyte glutathione peroxidase.") providing the measurement and mechanistic toolkit for interpreting oxidative modulation.
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