Increased levels of the antibody immunoglobulin A (IgA) are correlated with the manifestation of several diseases as well as African ancestry, according to findings published in Nature Communications.

Salivary antibody levels are many fold lower than found in blood serum, Immunoglobulin G (IgG) in the saliva is mainly sourced from leakage from the gingival surface and Immunoglobulin A (IgA) from ...

Immunoglobulin A (IgA) deficiency is the most common primary immune deficiency worldwide, but its presentation has puzzled physicians and researchers. Some with the disorder present with symptoms like ...

Immunoglobulin deficiency, whether prevalent or acquired, was not correlated with the risk for severe infections, nor were levels of gammaglobulins, IgG, IgA, or IgM. Study limitations included ...