DEAR DR. ROACH: A few years ago, my sister was diagnosed with an IgA deficiency, which is an autoimmune disorder. She was told by her doctor to avoid large crowds and to never shake hands with anyone.

April 30, 2010 (Chicago, Illinois) — Serum immunoglobulin (Ig)A deficiency is common after lung transplantation, and raises the risk for community-acquired respiratory viral infection and the ...

Serum immunoglobulin A (IgA) concentrations were determined in 12 600 adult Swedish twins, applying a high-throughput reverse-phase protein microarray technique. The prevalence of IgA deficiency (IgAD ...

IgA deficiency is the most common primary immune deficiency worldwide. However, its presentation is not fully understood. A new study by researchers at Children’s Hospital of Philadelphia (CHOP) has ...

Undue susceptibility to infection is a feature of several diverse conditions in which precipitins to cow's milk are commonly found. To investigate the possible relation of the presence of milk ...

Adults with suspected celiac disease and no immunoglobulin A (IgA) deficiency most likely can avoid a diagnostic bowel biopsy if they have high serum anti-tissue transglutaminase IgA (tTG-IgA).

IgA deficiency is one of the most common genetic immunodeficiency disorders in humans and is associated with an insufficiency or complete absence of the antibody IgA. Researchers have now performed ...

Children having normal serum levels of IgG and IgM but IgA below 5mg/dl were considered as having “selective IgA deficiency”. Those with-2 SD from the normal mean for the age were defined as “partial ...

An IgE deficiency was demonstrated in 11 of 16 patients with ataxia-telangiectasia. No relation to age or to the level of IgG, IgM or IgD was found. Nine out of 11 patients with IgE and IgA deficiency ...

Researchers have found that immunoglobulin A (IgA) deficiency leads to disruption of the ileal gut microbiota and increased inflammation in the ileum in mice. This suggests that IgA plays an important ...

Tokyo, Japan - While researchers have known for years that immunoglobulin A (IgA) is important for gut health, it has remained unclear exactly what role it plays in preventing infection and disease.