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Secretory immunoglobulin A (sIgA) is found in the plasma, saliva, gastric fluids and the mucous membranes of the body. It is an immunoglobulin that provides the main immunological defence of mucosal surfaces against pathogenic invasion. Maintaining adequate levels is essential for an adaptive immune response. Low levels of sIgA are associated with food sensitivities and intestinal permeability issues. High levels can be an indication that there is an active infection of the gastrointestinal system.
Investigation of salivary sIgA is recommended in patients presenting with food sensitivity, allergy, atopic conditions (asthma, psoriasis & eczema), inflammatory bowel disease, irritable bowel syndrome and chronic infection. This test requires one sample of saliva taken at any time during the day.
• 15ml Saliva tube
• 1 x Specimen bag
• Padded postage satchel
• You do not need to discontinue supplements to complete this test unless directed by your practitioner
• Saliva must be collected between 6.00am-8.00am