Immunoglobulin IgG Definition & Meaning | Health Care Term | CSIMarket
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Glossary

Immunoglobulin IgG

Health Care Term

1. Diagnosis of infections - IgG antibodies are produced in response to many infectious agents, and their presence in blood can indicate the presence of a particular infection. Serological tests that measure IgG levels are used to diagnose diseases such as hepatitis, syphilis, and HIV.

2. Treatment of autoimmune diseases - IgG can be used to treat autoimmune diseases such as lupus and rheumatoid arthritis, where the immune system attacks the body*s own tissues. IVIG, or intravenous immunoglobulin, is a therapy that involves the infusion of IgG into the bloodstream to prevent the immune system from attacking healthy tissues.

3. Prevention of infections - In some cases, IgG can be used to prevent infections. For example, during pregnancy, a woman*s body produces IgG antibodies that can be transferred to the fetus through the placenta and provide passive immunity to certain infections.

4. Immunomodulation - IgG antibodies can modulate the immune response by binding to receptors on immune cells and activating or inhibiting their function. This property of IgG can be exploited in cancer immunotherapy, where monoclonal antibodies that target specific proteins on cancer cells are used to stimulate the immune system to attack the tumor.

Overall, immunoglobulin IgG is a versatile and important component of the immune system and has many applications in healthcare.


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