Fig. 1.

Plasma PON-1 activity (U/mL) measured at scheduled time points before (T0) and after (T2-T240) LPS administration in individual healthy horses (n = 6). The boxes indicate the I-III interquartile range (IQR), the horizontal black line indicate the median values, whiskers extend to further observation within quartile I minus 1.5 × IQR or to further observation within quartile III plus 1.5 × IQR. Time points that are significantly different to each other are indicated by the same letters on the top of boxplots