Fig. 7.

Plasma antibody production in response to allergen sensitization and challenge. IgE(a), CRA-specific IgE(b), IgG1 (c) and IgG2a (d) were measured in plasma collected at day 22 after sensitization by standard ELISA. The Imm. Only group received CRA sensitization, but no challenge on days 14 or 21. Data are presented as the mean ± SEM (n = 4 mice per group, per experiment; combination of 3 separate experiments). * p < 0.05 compared to naïve mice as measured by Student's t test.