Synopsis

Source of validity: Scientific
Rating (out of 5): 2

N-acetyl-cysteine (NAC) has garnered some scientific interest for its potential role in supporting the treatment of bacterial infections, particularly as an adjunct rather than a primary therapy. The rationale stems mainly from its mucolytic properties, its ability to disrupt biofilms, and its antioxidant effects. Biofilm formation is a well-known virulence factor for many bacterial pathogens, making infections more resistant to antibiotics and host defenses. Several in vitro studies have demonstrated that NAC can disrupt bacterial biofilms formed by organisms such as Pseudomonas aeruginosa and Staphylococcus aureus, potentially making these bacteria more susceptible to both antibiotics and immune clearance. Additionally, NAC's antioxidant and anti-inflammatory actions may help modulate the host response during infection, which could be beneficial in chronic respiratory infections such as those seen in cystic fibrosis and chronic obstructive pulmonary disease (COPD).

However, clinical evidence supporting the use of NAC as a direct treatment for bacterial infections is limited and mostly restricted to adjunctive use in chronic respiratory conditions. Some clinical trials in COPD and cystic fibrosis patients have shown reduced exacerbations and improved mucus clearance, which may indirectly reduce bacterial load. There is insufficient evidence to recommend NAC as a standalone antibacterial agent, and its use remains supplemental to standard antibiotic therapies. Overall, while scientific rationale and early evidence exist, robust clinical validation is lacking, justifying a moderate but not high evidence rating (2/5).

More about N-acetyl-cysteine (NAC)
More about Infection (bacterial)

Other ingredients used for Infection (bacterial)

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