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[Occurrence of TSH receptor antibodies and thyroid microsomal antibodies in Graves-Basedow disease]
1Zdravstveni centar, Zajecar Sluzba za nuklearnu medicinu.
Abstract:
Anti-TSH receptor antibody examination was performed in patients with Basedow-Graves' disease (141 patient: 34 before treatment, 49 during medicamentous therapy, 55 in stable remission and 3 with spontaneous hypothyroidism). The following findings were found: anti-TSH receptor antibodies were positive in 87% of untreated patients; in patients with medicamentous therapy they are in correlation with the metabolic status of the patients; only in 2% of patients in remission findings were high; all of the three patients with spontaneous hypothyroidism have had high titer. Findings of the thyroid microsomal antibodies don't have such regularity: the results were high in 67% of untreated patients; were in correlation with functional status during therapy; highly present in remission (62%) and have high titers in spontaneous hypothyroidism. The gathered results confirm opinions that anti-TSH receptor antibodies are highly etiopathogenetically significant in autoimmune hypothyroidism, but underline that the finding of thyroid microsomal antibodies is not clear enough.
Insights
Anti-TSH receptor antibodies are key in autoimmune hypothyroidism, showing high prevalence in untreated and hypothyroid patients. Thyroid microsomal antibodies lack this clear diagnostic pattern.
Area of Science:
- Endocrinology
- Immunology
- Autoimmune Diseases
Context:
- Basedow-Graves' disease is an autoimmune disorder affecting the thyroid.
- Understanding antibody roles is crucial for diagnosis and management.
- 141 patients were analyzed across different disease stages: pre-treatment, during therapy, remission, and spontaneous hypothyroidism.
Purpose:
- To evaluate the diagnostic significance of anti-TSH receptor antibodies (TRAb) and thyroid microsomal antibodies (MAb) in Basedow-Graves' disease.
- To correlate antibody titers with disease activity and metabolic status.
- To clarify the etiological role of these antibodies in autoimmune thyroid conditions.
Summary:
- Anti-TSH receptor antibodies were positive in 87% of untreated patients and all patients with spontaneous hypothyroidism.
- TRAb levels correlated with metabolic status during therapy and were low (2%) in stable remission.
- Thyroid microsomal antibodies showed less consistent patterns, with high prevalence across all patient groups, including remission (62%).
Impact:
- Confirms the significant etiological role of anti-TSH receptor antibodies in autoimmune hypothyroidism.
- Highlights the less defined role of thyroid microsomal antibodies in this context.
- Provides insights for improved diagnostic strategies and understanding of autoimmune thyroid disease pathogenesis.