Figure 9From: Characterization of the innate immune response to chronic aspiration in a novel rodent modelTGF-beta production in response to chronic aspiration of gastric fluid. TGF-beta was detected in BAL fluid from 5 of 6 rats after 8 weeks of gastric fluid aspiration. In contrast, TGF-beta was undetectable in almost all BAL specimens from untreated rats or from rats receiving normal saline (p < 0.0001 based on chi-square analysis).Back to article page