Rheumatoid factor
Rheumatoid Factor[edit | edit source]
Introduction[edit | edit source]
Rheumatoid Factor (RF) refers to a group of autoantibodies most commonly associated with rheumatoid arthritis (RA), a chronic autoimmune disorder. These antibodies are known for their reactivity with antigenic determinants or immunoglobulins, particularly those enhancing the agglutination of suspended particles coated with pooled human gamma-globulin.
Nature and Function[edit | edit source]
Rheumatoid Factor is primarily an immunoglobulin M (IgM) that reacts against the Fc portion of immunoglobulin G (IgG), forming immune complexes. The presence of RF in the blood is a key indicator in the diagnosis and prognosis of rheumatoid arthritis, though it can also be present in other autoimmune and certain infectious diseases.
Clinical Significance[edit | edit source]
- In Rheumatoid Arthritis
RF is a significant marker for diagnosing RA. While not all RA patients have detectable RF, its presence, especially in high levels, typically indicates a more aggressive form of the disease.
- Other Conditions
Beyond RA, elevated levels of RF can be found in other conditions, including:
- Other autoimmune diseases like Sjogren's Syndrome
- Infectious diseases such as Hepatitis C
- Certain chronic infections and cancers
Diagnostic Testing[edit | edit source]
RF is detected through blood tests, which are part of the diagnostic criteria for rheumatoid arthritis. These tests measure the concentration of RF and help in assessing the severity and progression of the disease.
Treatment and Management[edit | edit source]
While there is no cure for rheumatoid arthritis, the presence of RF can guide treatment strategies. Management often involves a combination of medication, lifestyle changes, and in some cases, surgery.
See Also[edit | edit source]
References[edit | edit source]
1. [Link to a medical journal article on Rheumatoid Factor] 2. [Link to a research study exploring the role of RF in autoimmune diseases]
External Links[edit | edit source]
| Rheumatoid factor Resources | |
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