Fig. 1

Decreased serum LCN2 levels in allergic compared to non-allergic subjects. Serum LCN2 concentrations were assessed in (a) allergic (n = 63) and non-allergic (n = 46) individuals and (b) assessed by gender. c Within the allergic cohort, allergic women had lower LCN2-levels than allergic men, whereas no gender-disparity was observed in the non-allergic cohort. Statistical analyses were conducted with Student’s t-test. *p < 0.05, ***p < 0.001, ****p < 0.0001