Modulating Nitric Oxide: Implications for Cytotoxicity and Cytoprotection.

Area of Science:

• Physiology
• Molecular Medicine
• Pharmacology

Background:

• Nitric oxide (NO) is a simple molecule with diverse physiological functions.
• Its role in cardiovascular and central nervous system diseases remains debated.
• NO exhibits both cytoprotective and cytodestructive properties.

Purpose of the Study:

• To systematize the dual role of NO in physiological and pathological conditions.
• To elucidate NO's mechanisms in cytoprotection and cytodestruction.
• To explore pharmacological strategies for modulating NO's effects.

Main Methods:

• Systematic review of experimental and clinical studies.
• Analysis of NO's involvement in cellular processes like apoptosis and mitochondrial function.
• Examination of pharmacological interventions targeting the nitroxidergic system.

Main Results:

• NO regulates antiapoptotic and chaperone proteins, supporting cytoprotection.
• NO contributes to nitrosative/oxidative stress, apoptosis, and mitosis, mediating cytodestruction.
• NO is implicated in endothelial and mitochondrial dysfunction.

Conclusions:

• NO's complex role necessitates a nuanced understanding for therapeutic applications.
• Pharmacological modulation of the nitroxidergic system offers potential for treating NO-related pathologies.
• Targeting NO pathways can mitigate cytodestructive effects and enhance cytoprotective functions.