Total and differential cell counts following high DHA diet and three-week repetitive HDE exposure at three weeks and after the recovery period. Mice were fed DHA or control diets for four weeks before commencing three-week repetitive 12.5% HDE exposure. BALF was collected at the end of the three-week exposure, and cells were enumerated, (A) total cells, (B) neutrophils, (C) macrophages and (D) lymphocytes. Left and right panels show data for 3-week and recovery periods, respectively. Data are mean ± standard error of the mean, n=6-8 for saline control and DHA alone groups (no HDE exposure) and n=11-13 mice for HDE and DHA+HDE groups. * P<.05, ** P<.01, *** P<.001, **** P<.0001.