secretory immunoglobulin A

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se·cre·to·ry im·mu·no·glob·u·lin A

a subclass of IgA that is found primarily in secretions such as tears and colostrum. This form of IgA is protected from proteolytic degradation by the presence of a secretory component.
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References in periodicals archive ?
Effect of exercise'aging and functional capacity on acute secretory immunoglobulin A response in elderly people over 75 years of age: Geriator Gerontol Int:., 9(1): 81-8.
Effects of choir singing or listening on secretory immunoglobulin A, cortisol, and emotional state.
Decreased concentrations of secretory immunoglobulin A (sIgA) have been observed as a result of reduced synthesis and accelerated degradation of this immunoglobulin (Mackinnon and Hooper 1994).