Secretory Immunoglobulin A (sIgA)

Test Description: 

sIgA is secreted by all mucosal lymphoid tissue, and represents the first line of defense of the GI mucosa.

Deficient levels of sIgA can result in the increased uptake of intestinal pathogens or macromolecules, and stimulate a systemic immune response. Measuring levels of sIgA can provide the link between gut disorders and systemic illness.