Figure 5

Statistical discrimination of different experimental asthma models and glucocorticoid treatment. Multivariate analysis by means of principal component analysis (PCA) of all group specific protein concentration levels allowed clear separation of the different samples according to their treatment group (A). The corresponding loading plot shows the loading of each variable (protein concentration) on the score for each individual sample. This in turn allows deducing what protein species impact the sample scores and their clustering behaviour (B).