Walnut-induced anaphylaxis with cross-reactivity to hazelnut and Brazil nut  Riccardo Asero, MD, Gianni Mistrello, BSc, Daniela Roncarolo, BSc, Stefano Amato, BSc  Journal of Allergy and Clinical Immunology  Volume 113, Issue 2, Pages 358-360 (February 2004) DOI: 10.1016/j.jaci.2003.11.019

FIG 1 Immunoblot with heat-processed walnut extract. Lane 1, Patient serum; lane 2, patient serum preabsorbed with heat-processed walnut extract; lane 3, patient serum preabsorbed with heat-processed hazelnut; lane 4, patient serum preabsorbed with heat-processed almond; lane 5, normal control serum. Journal of Allergy and Clinical Immunology 2004 113, 358-360DOI: (10.1016/j.jaci.2003.11.019)

FIG 2 Immunoblot with heat-processed hazelnut (lanes 1 through 3), peanut (lanes 4 through 6), and Brazil nut (lanes 7 through 9). Patient serum (lanes 1, 4, and 7); patient serum preabsorbed with heat-processed walnut (lanes 2, 5, and 8); negative control serum (lanes 3, 6, and 9). Journal of Allergy and Clinical Immunology 2004 113, 358-360DOI: (10.1016/j.jaci.2003.11.019)