“Breathe Clean Air”: the role of physicians and healthcare professionals

The association between small airway function, indicated by FEF25–75, and ambient ozone concentrations (previous day) in 158 asthmatic children participating in an 18-month controlled intervention study. Associations were particularly strong among those not taking antioxidant supplementation. Moreover, the effects of ozone were much stronger too among those with a non-functional variant in the GSTM gene – relevant in oxidative defence mechanisms. Data from [4, 5].