Immunoglobulin A Deficiency | Johns Hopkins Medicine
What is IgA deficiency? Immunoglobulin A (IgA) is an antibody blood protein that’s part of your immune system. Your body makes IgA and other types of antibodies to help fight off sickness. Having an IgA deficiency means that you have low levels of or no IgA in your blood.
Selective IgA deficiency - Symptoms and causes - Mayo Clinic
2024年5月24日 · Selective IgA deficiency is the lack of a disease-fighting antibody in the immune system called immunoglobulin A (IgA). People with this condition usually have typical levels of other immunoglobulins (im-u-no-GLOB-u-lins).
Immunoglobulin A - Wikipedia
Immunoglobulin A (Ig A, also referred to as sIgA in its secretory form) is an antibody that plays a role in the immune function of mucous membranes. The amount of IgA produced in association with mucosal membranes is greater than all other types of antibody combined. [3]
Biochemistry, Immunoglobulin A - StatPearls - NCBI Bookshelf
2023年5月1日 · Immunoglobulin A (IgA), one of the five primary immunoglobulins, plays a pivotal role in mucosal homeostasis in the gastrointestinal, respiratory, and genitourinary tracts, functioning as the dominant antibody of immunity in this role.
What is Immunoglobulin A (IgA)? Blood Test & Normal Range
2021年1月22日 · Immunoglobulin A (IgA) is an antibody made by white blood cells. It’s concentrated in fluids that cover mucous membranes in the body–such as those in the gut, respiratory system, eyes, and mouth. IgA works to protect the body from infections and toxins while building immune tolerance.
Immunoglobulin Test: High vs Low vs Normal Levels of (Ig)
2023年9月19日 · Immunoglobulin E: Your body makes IgE antibodies when it overreacts to substances that aren't harmful, such as pollen or pet dander. Your doctor will likely measure your IgE levels if you have...
Structure and biologic functions of IgA - UpToDate
2023年4月19日 · IgA is the most abundant antibody isotype in the body, comprising almost 70 percent of the body's total immunoglobulin. The majority of IgA is found in the various mucous secretions, including saliva, milk, colostrum, tears, and secretions from the respiratory tract, genitourinary tract, and prostate [1-3].
Autoimmune Blood Tests: Types and Interpreting Results
2023年9月20日 · Immunoglobulin A (IgA) Antibodies are also known as immunoglobulins. There are three main types: immunoglobulin A (IgA), immunoglobulin G (IgG), and immunoglobulin M (IgM). Of the three, IgA—or specifically the lack of IgA—may indicate an autoimmune disease.
Immunoglobulin A (IgA) – Structure, Properties, Subclasses, …
2024年1月23日 · Immunoglobulin A (IgA) is the most abundant immunoglobulin found in humans. IgA, at concentrations of about 2–4 mg/ml, is considered as the second most prevalent antibody in serum after Immunoglobulin G (IgG), which is normally present at about 12 mg/ml.
Immunoglobulin A Deficiency - Cedars-Sinai
Immunoglobulin A (IgA) is an antibody blood protein that’s part of your immune system. Your body makes IgA and other types of antibodies to help fight off sickness. Having an IgA deficiency means that you have low levels of or no IgA in your blood.