Abstract: Antibodies are used as biomarkers to assist in distinguishing gluten immune reactivity and sensitivity, silent celiac disease, Crohn's disease and other gut-related pathologies from classical celiac disease. In one class of embodiments, sera, saliva or other samples from a human or other animal are tested for antibodies to (a) a wheat antigen; (b) a gliadin antigen; and (c) one or more of a wheat germ agglutinin, a gluteomorphin, a glutenin, a deamidated glutenin, a prodynorphin, and a dynorphin. Test results are considered particularly interesting where the wheat antigen and the gliadin antigen are both selected from the group consisting of native and deamidated forms of ?-gliadin 33-mer, ?-gliadin-17-mer, ?-gliadin-15-mer, ?-gliadin-17-mer, and glutenin 21-mer.

Abstract: Compositions and methods for accurately characterizing immune reactivity to food allergens have been developed, in which test surfaces that incorporate different food antigen preparations derived from the same food into individual test sites are provided. Such coated surfaces can be produced using raw and cooked foods. The use of a panel of such test surfaces to characterize specific IgG, IgA, and/or C1q binding provides improved sensitivity and accuracy in determining immune reactivity and response to specific foods.

Abstract: Methods, assays, and apparatus are disclosed for testing of antigens associated with intestinal and/or blood-brain barrier permeability. For example, blood, saliva or other bodily fluid can be tested for binding (1) to a bacterial toxin (preferably a lipopolysaccharide), and (2) binding to tissue antigens selected from at least one of (a) a gut-related antigen and (b) a blood brain barrier-related antigen. Analysis of test results can be used to assist in detecting and diagnosing diseases associated with leaky gut syndrome (whether due to paracellular or transcellular pathways, and whether due to bacterial toxins or some other cause) and/or to diseases associated with excessive blood brain barrier permeability, which are contemplated herein to include both neuroinflammation and/or neuroautoimmunity conditions, and especially amyotrophic lateral sclerosis, Parkinson's disease, multiple sclerosis, Alzheimer's, or peripheral neuropathy, and major depression.

Abstract: Methods, assays, and apparatus are disclosed for testing of antigens associated with intestinal and/or blood-brain barrier permeability. For example, blood, saliva or other bodily fluid can be tested for binding (1) to a bacterial toxin (preferably a lipopolysaccharide), and (2) binding to tissue antigens selected from at least one of (a) a gut-related antigen and (b) a blood brain barrier-related antigen. Analysis of test results can be used to assist in detecting and diagnosing diseases associated with leaky gut syndrome (whether due to paracellular or transcellular pathways, and whether due to bacterial toxins or some other cause) and/or to diseases associated with excessive blood brain barrier permeability, which are contemplated herein to include both neuroinflammation and/or neuroautoimmunity conditions, and especially amyotrophic lateral sclerosis, Parkinson's disease, multiple sclerosis, Alzheimer's, or peripheral neuropathy, and major depression.

Abstract: Methods, assays, and apparatus are disclosed for testing of antigens associated with intestinal and/or blood-brain barrier permeability. For example, blood, saliva or other bodily fluid can be tested for binding (1) to a bacterial toxin (preferably a lipopolysaccharide), and (2) binding to tissue antigens selected from at least one of (a) a gut-related antigen and (b) a blood brain barrier-related antigen. Analysis of test results can be used to assist in detecting and diagnosing diseases associated with leaky gut syndrome (whether due to paracellular or transcellular pathways, and whether due to bacterial toxins or some other cause) and/or to diseases associated with excessive blood brain barrier permeability, which are contemplated herein to include both neuroinflammation and/or neuroautoimmunity conditions, and especially amyotrophic lateral sclerosis, Parkinsons disease, multiple sclerosis, Alzheimer's, or peripheral neuropathy, and major depression.