Home | Start The Analyst | FAQ | Search | Health Discussion Forum
A Low IgD level
 


IgD stands for immunoglobulin D, one of the classes of immunoglobulins (also called antibodies) that are in the blood. IgD is mainly found on the surface of B-cells and may help regulate B-cell function. The role of IgD in the immune system is not well understood. The 'low', 'normal' and 'high' ranges vary with age, and are also lab-specific. However, a reasonable normal range is 0.3-3.0mg/dl.

A high level of IgD may indicate IgD multiple myeloma. IgD multiple myeloma is much less common than IgA or IgG multiple myeloma.





GLOSSARY

Antibody (Antibodies)
A type of serum protein (globulin) synthesized by white blood cells of the lymphoid type in response to an antigenic (foreign substance) stimulus. Antibodies are complex substances formed to neutralize or destroy these antigens in the blood. Antibody activity normally fights infection but can be damaging in allergies and a group of diseases that are called autoimmune diseases.

Deciliter (dL)
0.1 or one tenth of a liter.

Immune System (Immune Response, Immunity)
A complex that protects the body from disease organisms and other foreign bodies. The system includes the humoral immune response and the cell-mediated response. The immune system also protects the body from invasion by making local barriers and inflammation. The process may involve acquired immunity (the ability to learn and remember a specific infectious agent), or innate immunity (the genetically programmed system of responses that attack, digest, remove, and initiate inflammation and tissue healing).

Immunoglobulin A (IgA)
Supports mucosal immunity.

Milligram (mg, Milligrams)
0.001 or a thousandth of a gram.




Last updated: Oct 08, 2008


Home | Start The Analyst | FAQ | Search | Health Discussion Forum
Design by: RoyalWebHosting.com