Figure 4From: Effects of ultrafine particles on the allergic inflammation in the lung of asthmatics: results of a double-blinded randomized cross-over clinical pilot studyTreatment differences between UFP and filtered air in sequence (A): 1stPeriod: UFP – 2ndPeriod: Filtered air and sequence (B): 1stPeriod: Filtered air – 2ndPeriod: UFP on oxidant radical generation of BAL cells after PMA stimulation measured via chemiluminescence (RLU: relative luminescence units). Mean ± SD.Back to article page