2/7 positive >100 and 1.9 kU/L, who were positive by DBPCFC (Crespo et al. 2001 [721])
Sera studied from the challenge positive patients showed high concentrations of peanut specific IgE by RAST with 15, 65, 70 and 5 sera > 100 kU/L by RAST. The 6 sera with strongest peanut IgE binding showed lupin pollen specific IgE concentrations of 4.4, 4.5, 5.7, 8.6, 57 and 74 kU/L by RAST-CAP and 1.45, 7.8, 3.5, 2.35, 2.5 and 3 kU/L by RIA (Moneret-Vautrin et al. 1999 [118]).
Matheu et al. (1999) [718] tested sera taken from a patient in 1992, 1996 and 1997. In 1992 the sera contained 1.3, 2.6 and 2.2 kU/l of specific IgE to white bean, pea and soybean. Peanut was negative and no other legumes were tested. In 1996 the sera contained 2.36, 2.71, 3.89, 6.54, 1.18, 3.69 and 2.37 kU/l of specific IgE to chickpea, white bean, pea, soybean, peanut, lentil and chickling. In 1997 the sera contained 3.46, 2.94, 3.9, 4.11, 1.2, 4.1 and 1.23 kU/l of specific IgE to chickpea, white bean, pea, soybean, peanut, lentil and chickling. Green bean was negative and lupin was not done. ELISA showed antibody to lupin, chickpea, white bean and lentil. Chickpea, white bean, peanut, lentil and pea gave 83%, 86%, 62%, 32% and 27% inhibition with lupin as the solid phase.
Hefle et al. (1994) [719] report 4/7 significant RAST scores (cpm patient/cpm control) of 2.3, 2.6, 3.0 and 5.7 (others 1.1) for their patients with lupine extract (slightly higher when extract was ammonium sulfate precipitated) and 3.2, 4.4, 6.5 and 11.1 for the same patients with peanut (others 1.0-1.5). RAST inhibition was seen with lupin extracts (including from a pasta) and crude peanut extract.