Figure 4.

Cross-linked surfactant protein D (SP-D) as a marker of disease severity. For the seven patients with higher molecular weight forms of SP-D, cross-linked SP-D was quantified as a percentage of total SP-D (x axis) in bronchoalveolar lavage (BAL) from segments challenged with either allergen alone (triangles, group mean 40 ± 13%) or allergen plus LPS (boxes, group mean 45 ± 11%) and was correlated with (A) BAL eosinophils number (absolute number of cells, y axis) or (B) BAL total nitrogen oxides (micromolar, y axis).