PMC3521276_01
(A) Level of levodropropizine-specific immunoglobulin (Ig) E in healthy controls and patient serum. Control serum 0.001 OD, patient serum 0.166 OD, respectively. (B) Inhibition ELISA using levodropropizine as the inhibitor. Levodropropizine showed dose-dependent inhibition pattern. At 0.1 M concentration, it completely inhibited the binding of specific IgE to levodropropizine-HSA conjugate. ODU, optical density unit; HSA, human serum albumin; ELISA, enzyme-linked immunosorbent assay.
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F1
The level of sIgE to levodropropizine was 0.166 optical density units reading at the 405-nm ultraviolet wavelength by an automated microplate spectrophotometer (Fig. 1A). The results showed dose-dependent inhibition pattern: At 0.1 M concentration, it showed complete inhibition (Fig. 1B).