Figure 1
From: Multiple exposures to swine barn air induce lung inflammation and airway hyper-responsiveness
Airway hyper-responsiveness. Airway hyperresponsiveness to methacholine challenge in rats was measured using a whole-body head-out plathysmograph. Compared to controls, both 1-day and 5-day (P < 0.001) exposed rats showed increased airway hyperresponsiveness. Compared to 20-day exposed rats, 5-day (P = 0.001) and 1-day (P = 0.014) exposed rats showed increased airway hyper-responsiveness There was no difference between control and 20-day exposed (P = 0.207) and 1-day and 5-day exposed (P = 0.249) rats. *: Significantly different from other groups as indicated by line/s.