Intolerance Test Kits (IgG)

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Food and Environmental Antibody Assessment The IgG and IgE Antibody Panels are blood tests that measure antibodies to commonly consumed foods and environmental allergens. The body can react to foods in many different ways. Adverse food reactions can lead to distressing symptoms and chronic health conditions. Often times it is unknown exactly which food(s) may be the cause and testing can help identify the problematic foods. Removal of the reactive foods often results in the resolution of symptoms. What is the difference between IgE and IgG-mediated reactions? The key differences between IgE allergies and IgG sensitivities are summarised below:[1] IgE-Mediated Allergies (Foods, moulds, inhalants) Immediate onset (minutes to hours) Circulating half-life of 1-2 days Permanent allergies Mast cell activation Stimulates histamine release Hives, stuffy or itchy nose, sneezing, itchy, teary eyes, vomiting, stomach cramps or diarrhoea, angioedema or swelling, shortness of breath or wheezing, anaphylaxis IgG-Mediated Sensitivities (Foods, spices, vegetarian foods) Delayed onset (hours to days) Circulating half-life of 22-96 days Temporary sensitivities Activates complement and forms immune complexes Does not stimulate histamine release Gastrointestinal symptoms, headaches, joint aches, skin rashes, fatigue, behavioral problems, other vague symptoms The role of IgG food antibody testing is still being researched, however studies have shown benefit of testing in certain conditions.[1] A study comparing methodologies showed that, "IgG ELISA testing is more reliable and consistent than cell size testing for identifying food sensitivities."[21] Examples of cell size testing, or cytotoxic testing include mediator release testing (MRT), antigen leukocyte antibody testing (ALCAT) and lymphocyte response assays. These and other methodologies require well-designed trials for validation.[1] Conditions associated with IgG food sensitivity Irritable Bowel Syndrome (IBS)[2,3,4] Major Depressive Disorder[4] Migraine headaches[5,6,7] Skin rashes such as eczema[8] Joint aches[9] Autoimmune disease[10] Crohn's Disease[11] Obesity[12] The "Leaky Gut" Connection The presence of circulating IgG antibodies to foods may be suggestive of increased intestinal permeability, also referred to as "leaky gut syndrome." When the tight junctions forming the barrier in the gut don't work properly, larger substances can "leak" through, causing an immune response. This immune response may result in the production of IgG antibodies to foods.[4] There are multiple dietary and lifestyle factors that contribute to increased intestinal permeability. These factors include alcohol,[13] stress,[14,15] chronic NSAID use,[16] Western-type diet (high consumption of red meat, animal fat, high sugar and low fiber food),[17] and prolonged and strenuous exercise.[18,19,20] Ordering the Profile The Antibody Panels can be ordered as stand-alone profiles or ordered together with other profiles. Often times, clinicians will order several smaller profiles together in order to see a more complete picture of the patient's immune-mediated response. Profiles that can be ordered together include: IgG Food Antibodies - 87 foods plus total IgE IgG Vegetarian - 21 foods plus total IgE IgG Spices - 24 spices plus total IgE IgE Food Antibodies - 19 foods plus total IgE IgE Moulds - 15 moulds plus total IgE IgE Inhalants - 25 inhalants specific to the UK plus total IgE Coeliac Profile - Total IgA, tTG IgA & IgG, DGP IgA & IgG, EMA IgA IgG Food Antibodies Bloodspot The IgG Food Antibodies profile can now be collected using a simple finger stick. Bloodspot offers a hassle-free option for at-home collection, especially for offices without phlebotomy services, and is often preferred for small children. How it works Consult Healthcare ProviderYour provider will discuss your symptoms and help decide which test is right for you. Many specimen collections can be completed from the privacy of your home.Collect SamplesUse a calendar to plan for your collection. Follow instructions carefully and be sure to add important details about you and your specimens where indicated.Ship to LabShip specimens using the materials provided. Schedule time with your healthcare provider to review results and create a plan for your health. Specimen: Serum Show more