Airborne toxins may worsen asthma
Exposure to airborne endotoxin, a bacterial substance commonly found in both indoor and outdoor air, appears to increase the risk of asthma attacks in patients who are already sensitive to house dust. This sensitising effect seen with endotoxin is similar to what has been reported with ozone exposure.
The results suggest that airborne irritants such as ozone and endotoxin, which can cause airway inflammation, may interact synergistically with other causes of airway problems, including allergens, to make asthma worse. So in people who are already allergic, if they are inhaling pollutants that can further exacerbate their inflammation, it may aggravate the symptoms they normally would have. In other words, they may experience a worsening of their symptoms.
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