ALB and Alzheimer disease: The identification of antibodies against denatured egg albumin revealed an increased percentage of patients with anti-denatured egg albumin antibodies also in severe AD (41.1%) compared to mild AD (7.5%), increasing the percentage of antibody-positive samples against one or both egg albumin forms to 61.7% in severe compared to 15% in mild disease (p < 0.001, Figure 2a).