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Novel effects of nitric oxide
K L Davis1, E Martin, I V Turko
1Department of Integrated Biology and Pharmacology, University of Texas Houston Health Science Center, Houston, Texas 77030, USA. karen.l.davis@uth.tmc.edu
Annual Review of Pharmacology and Toxicology
|March 27, 2001
Summary
Nitric oxide (NO) has diverse physiological roles. This review focuses on NO's non-cyclic guanosine monophosphate (cGMP) effects, detailing its interactions with proteins, lipids, and nucleic acids.
Area of Science:
- Biochemistry
- Molecular Biology
- Physiology
Background:
- Nitric oxide (NO) is a free radical gas with broad physiological and pathophysiological impacts.
- NO mediates effects via soluble guanylate cyclase and other pathways.
- NO can react with oxygen and superoxide to form reactive nitrogen species.
Purpose of the Study:
- To review the non-3',5'-cyclic-guanosine-monophosphate (cGMP)-mediated effects of nitric oxide.
- To explore NO's interactions with macromolecules like proteins, lipids, and nucleic acids.
- To discuss NO's direct interactions with transition metals.
Main Methods:
- Literature review of nitric oxide signaling pathways.
- Analysis of NO's chemical reactivity with biological molecules.
- Examination of non-cGMP-dependent NO actions.
Main Results:
- Nitric oxide modifies proteins, lipids, and nucleic acids through non-cGMP pathways.
- Reactive nitrogen species generated by NO contribute to macromolecular damage.
- NO directly interacts with transition metals, influencing biological processes.
Conclusions:
- Non-cGMP mediated effects are a significant aspect of nitric oxide's biological activity.
- Understanding these pathways is crucial for elucidating NO's role in health and disease.
- Further research into NO's diverse chemical interactions is warranted.