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Platelet-based Detection of Nitric Oxide in Blood by Measuring VASP Phosphorylation
Published on: January 7, 2019
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Nitric oxide, vasodilation and the red blood cell
Michael J Simmonds1, Jon A Detterich2, Philippe Connes3
1Heart Foundation Research Centre, Griffith Health Institute, Griffith University, Queensland, Australia.
Biorheology
|May 14, 2014
Summary
Red blood cells (RBCs) generate nitric oxide (NO), influencing blood flow and oxygen delivery. This review explores RBC-derived NO pathways, export, and its role in regulating RBC deformability and vascular function.
Area of Science:
- Physiology
- Biochemistry
- Hematology
Background:
- Nitric oxide (NO) is a crucial signaling molecule involved in numerous physiological processes across mammalian systems.
- Traditionally, NO generation pathways in the endothelium received significant focus.
- Recent discoveries highlight a nitric oxide synthase (NOS)-like enzyme in red blood cells (RBCs), revealing their role in NO modulation.
Purpose of the Study:
- To summarize NO generation pathways, particularly those within RBCs.
- To explore theories and evidence for the export and extracellular bioactivity of RBC-derived NO.
- To discuss the influence of NO on RBC deformability, blood fluidity, and overall vascular regulation.
Main Methods:
- Review of existing literature on NO generation and function.
- Analysis of studies investigating NOS-like enzymes in RBCs.
- Synthesis of research on RBC-derived NO export mechanisms and bioactivity.
Main Results:
- RBCs possess NOS-like enzymes contributing to NO production.
- Evidence suggests mechanisms for RBC-derived NO export, leading to extracellular effects.
- NO plays a significant role in regulating RBC deformability, impacting blood rheology.
Conclusions:
- RBCs are important contributors to the body's NO equilibrium.
- RBC-derived NO influences vascular regulation through modulation of blood flow and oxygen delivery.
- Further research is needed to fully elucidate the bioactivity and mechanisms of RBC-derived NO.
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