FIG. 2.

Treatment of pigs with ATRA increased SWC3⁺ eosinophils in lung tissue after inoculation with A. suum. BAL cells were harvested at 14 DAI. SWC3⁺ SWC9⁻ cells were enumerated by flow cytometry. Treatment groups annotated with unique letters are statistically different as determined by one-way ANOVA at P values of <0.05. Infection induced a significant increase in SWC3⁺ SWC9⁻ cells in BAL specimens from pigs infected with A. suum. LD and HD ATRA significantly augmented this increase (A). Infection also induced a significant accumulation of SWC3⁺ SWC9⁻ cells in BAL specimens from pigs infected with A. suum at 7 DAI in a replicate study, and LD ATRA significantly augmented this increase (B).