Fig. 1
From: Tryptophan metabolic pathway and neopterin in asthmatic children in clinical practice
Serum concentration of tryptophan (upper left), kynurenine (upper right), kynurenine-to-tryptophan ratio (kyn/trp) (lower left), and neopterin lower right) in patients with seasonal allergic rhinitis evaluated during or outside of the pollen season and in healthy subjects. Data are represented as medians (horizontal lines), interquartile ranges (boxes), and ranges (vertical lines), excluding outliers (p values, Kruskal–Wallis test, and p values of individual group comparisons are given)