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Circulating anti-heart antibodies in heart diseases detected using an immunofluorescent technique
Insights
Circulating anti-heart antibodies (C-AHAb) are prevalent in various heart diseases, particularly cardiomyopathies. Detecting these antibodies and their specific staining patterns may aid in understanding heart disease development.
Area of Science:
- Cardiology
- Immunology
- Pathology
Background:
- Circulating anti-heart antibodies (C-AHAb) are implicated in autoimmune processes.
- Understanding the role of C-AHAb in different cardiac conditions is crucial for diagnosis and treatment.
Purpose of the Study:
- To investigate the presence and patterns of C-AHAb in patients with diverse heart diseases.
- To assess the potential diagnostic utility of C-AHAb in specific cardiac pathologies.
Main Methods:
- Indirect immunofluorescence technique was employed to detect C-AHAb in sera.
- Sera from 132 heart disease patients and 65 healthy controls were analyzed.
- Staining patterns were classified into "heterophile", "intracellular", "intercalated disc", and "nuclear".
Main Results:
- Positive C-AHAb incidence varied across conditions: 81% in dilated cardiomyopathy, 77% in hypertrophic cardiomyopathy, 65% in rheumatic valvular disease, 58% in myocardial infarction, and 40% in angina pectoris.
- Normal healthy controls showed a 39% positive incidence of C-AHAb.
- A high rate of "heterophile" antibodies was observed in idiopathic cardiomyopathies (65% dilated, 55% hypertrophic).
- The "intracellular" staining pattern was found in 42% of rheumatic valvular disease cases.
Conclusions:
- Elevated levels of C-AHAb are associated with several heart diseases, especially cardiomyopathies.
- Specific C-AHAb staining patterns may offer insights into the pathogenesis of specific heart conditions.
- C-AHAb detection could be a valuable tool for assessing heart disease etiology.
Abstract:
Circulating anti-heart antibodies (C-AHAb) were examined in the sera of 132 patients with heart diseases and of 65 normal healthy controls using an indirect immunofluorescent technique. The patient groups consisted of 31 with dilated cardiomyopathy, 22 with hypertrophic cardiomyopathy, 38 with myocardial infarction, 15 with angina pectoris and 26 with rheumatic valvular disease. The indirect immunofluorescent staining patterns were classified into 4 types: "heterophile", "intracellular", "intercalated disc" and "nuclear" patterns. The positive incidence of C-AHAb was 81% in dilated cardiomyopathy, 77% in hypertrophic cardiomyopathy, 65% in rheumatic valvular disease, 58% in myocardial infarction, 40% in angina pectoris and 39% in normal healthy controls. A high rate of "heterophile" antibodies was found in the idiopathic cardiomyopathy group: 65% in dilated cardiomyopathy and 55% in hypertrophic cardiomyopathy. The intracellular staining pattern was present in 42% of rheumatic valvular disease. These findings suggest that positive C-AHAb and staining patterns may be useful in the assessment of the pathogenesis of certain types of heart diseases.