Hyperbaric oxygen therapy and N-acetylcysteine: a redox-dependent interaction

Area of Science:

• Redox biology
• Hyperbaric medicine
• Pharmacology

Background:

• Hyperbaric oxygen therapy (HBOT) modulates cellular redox signaling for therapeutic effects.
• Reactive oxygen species (ROS) play a dual role in HBOT, mediating adaptive responses or causing injury.
• N-acetylcysteine (NAC), an antioxidant, is explored for its potential to modulate HBOT's oxidative effects.

Purpose of the Study:

• To review the interaction between HBOT and NAC in experimental and clinical settings.
• To elucidate how NAC influences HBOT's therapeutic outcomes based on redox signaling.
• To understand the context-dependent nature of combined HBOT and NAC therapy.

Main Methods:

• Literature review of experimental and clinical studies on HBOT and NAC.
• Analysis of studies examining the effects of combined therapy on oxidative stress and cellular pathways.
• Synthesis of evidence regarding the influence of treatment parameters and baseline conditions.

Main Results:

• The combined effects of HBOT and NAC are context-dependent.
• NAC can enhance HBOT in severe oxidative stress by reducing ROS and boosting antioxidant capacity.
• Antioxidant intervention with NAC may diminish HBOT benefits when ROS act as signaling molecules.

Conclusions:

• The interaction between HBOT and NAC hinges on a balance between pathological oxidative stress and redox-dependent signaling.
• Treatment timing, dosage, and baseline oxidative status are critical factors influencing combined therapy outcomes.
• Optimizing therapeutic strategies requires a nuanced understanding of these redox dynamics for clinical application.