Measures IgG, IgA, and IgM antibodies against major proteins in the blood-brain barriers (S100B and Claudin-5) which maintain the integrity of the biological door against neuroautoimmunity and neurodegenerative disorders. Detects breaches of the blood-brain barriers due to various factors, including gut bacterial toxins, gut-originated amyloid beta protein and peptides, and many environmental factors, such as foods, toxic chemicals, and pathogens. This array also helps in investigating traumatic brain injuries, sport-related or otherwise. Developed, published, and patented by Aristo Vojdani, PhD, MSc, CLS, known as the father of functional immunology, in 2012, 2013, 2014, 2015, 2017, 2019, 2020, and 2024.