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Updated: Apr 28, 2026

Chemiluminescence-based Assays for Detection of Nitric Oxide and its Derivatives from Autoxidation and Nitrosated Compounds
Published on: February 16, 2022
Hydrogen sulfide and nitric oxide interactions in inflammation
Maria Letizia Lo Faro1, Bridget Fox1, Jacqueline L Whatmore1
1University of Exeter Medical School, Saint Luke's Campus, Heavitree Road, EX1 2LU Exeter, UK.
Nitric oxide (NO) and hydrogen sulfide (H2S) are key gaseous transmitters. Their interactions significantly influence inflammatory processes, highlighting the importance of their cross-talk in biological systems.
Area of Science:
- Physiology
- Biochemistry
- Immunology
Background:
- Nitric oxide (NO), hydrogen sulfide (H2S), and carbon monoxide (CO) are vital gaseous transmitters.
- These molecules share properties like membrane permeability and endogenous production.
- They exhibit diverse physiological roles, including vasodilation and tissue protection.
Purpose of the Study:
- To review the roles of NO and H2S in inflammation.
- To explore the evidence for cross-talk between NO and H2S in inflammatory pathways.
Main Methods:
- Literature review of existing research on NO, H2S, and inflammation.
- Analysis of studies investigating the interactions between these gaseous molecules.
Main Results:
- NO and H2S have complex, dual roles in inflammation (both pro- and anti-inflammatory).
- Evidence suggests significant cross-talk between NO and H2S modulates inflammatory responses.
Conclusions:
- The interplay between NO and H2S is crucial for understanding and regulating inflammation.
- Further research into NO-H2S interactions may reveal novel therapeutic targets for inflammatory diseases.
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