Related Experiment Video
Updated: Jun 19, 2026

Generation of Two-color Antigen Microarrays for the Simultaneous Detection of IgG and IgM Autoantibodies
Published on: September 15, 2016
A PRECIPITINOGEN IN THE SERUM PRIOR TO THE ONSET OF ACUTE RHEUMATISM
1Department of Medicine, College of Physicians and Surgeons, Columbia University, and the Presbyterian Hospital, New York.
A precipitin reaction was observed in patients with acute rheumatism, indicating a potential biomarker for the disease. This reaction reappeared during subsequent rheumatic episodes, suggesting its relevance to disease activity.
Area of Science:
- Immunology
- Rheumatology
- Clinical Chemistry
Background:
- Acute rheumatism is an inflammatory condition with complex immunological underpinnings.
- Identifying specific biomarkers for acute rheumatism is crucial for diagnosis and monitoring disease activity.
Purpose of the Study:
- To investigate the presence and behavior of a precipitin reaction in relation to acute rheumatism.
- To characterize the properties of the involved precipitinogen and precipitin.
Main Methods:
- Sera samples were collected from patients at different stages of acute rheumatism.
- Precipitin reactions were analyzed using sera obtained before and after the onset of acute rheumatic episodes.
- Characterization of precipitinogen and precipitin properties was performed.
Main Results:
- A distinct precipitin reaction was detected in sera collected just before and shortly after the onset of acute rheumatism.
- The precipitin reaction was observed to recur with repeated rheumatic cycles.
- Key properties of the precipitinogen and precipitin involved in the reaction were elucidated.
Conclusions:
- The observed precipitin reaction serves as a potential indicator associated with acute rheumatism.
- The recurrence of this reaction correlates with rheumatic cycles, highlighting its dynamic nature in the disease process.
- Understanding the properties of the precipitinogen and precipitin may offer insights into the pathogenesis of acute rheumatism.
Related Concept Videos
Hypersensitivity Reactions: Immune-Complex Reactions
Immunoprecipitation
Chromatin Immunoprecipitation
Chromatin immunoprecipitation, also known as ChIP, is used to study protein-DNA or...
Rheumatic Heart Disease II: Clinical Manifestations and Diagnostic Studies
Rheumatic Heart Disease I: Introduction
Streptococcal Pharyngitis
Rh Blood Group

