Related Experiment Video
Updated: May 15, 2026

Generation of a Mouse Spontaneous Autoimmune Thyroiditis Model
Published on: March 17, 2023
[Immunological characteristics in subjects with heart connective tissue dysplasia depending on thyroid hormone levels
Insights
Heart connective tissue dysplasia (HCTD) impacts the immune system, decreasing IgM and increasing immune complexes. Specific valve issues correlate with higher IgG levels in HCTD patients.
Area of Science:
- Immunology
- Cardiology
- Endocrinology
Context:
- Heart connective tissue dysplasia (HCTD) is linked to immune system peculiarities, increasing susceptibility to infections and inflammation.
- Understanding HCTD's immunological and endocrine interactions is crucial for patient management.
Purpose:
- To investigate the relationship between HCTD, thyroid hormone levels, and vegetative dysfunction.
- To analyze immunoglobulin levels (IgM, IgG, IgA) and circulating immune complexes in HCTD patients.
- To explore correlations between specific cardiac manifestations and immune markers.
Summary:
- This study analyzed 181 HCTD patients, finding decreased IgM and increased immune complexes.
- Elevated IgG levels were observed in patients with mitral valve prolapse (MVP) and other specific valve abnormalities.
- IgA levels correlated with TSH, while IgM levels related to vegetative dysfunction in MVP patients.
Impact:
- Findings highlight immune dysregulation in HCTD, particularly concerning immunoglobulin levels and valve prolapse.
- Establishes potential links between thyroid hormones, vegetative dysfunction, and immune markers in HCTD.
- Provides insights for targeted monitoring and management strategies for HCTD patients.
Abstract:
Patients with heart connective tissue dysplasia (HCTD) are known to be subject to infectious and inflammatory diseases due to peculiarities of their immune system. We studied 181 patients with HCTD depending on thyroid hormone levels and vegetative dysfunction. HCTD was shown to be associated with a significant decrease of IgM levels and increase of circulating immune complexes. The IgG level in patients with mitral valve prolapse (MVP), anomalous chord localization, and combination of MPV and tricuspid valve prolapse was significantly higher than in the absence of HCTD. Patients with and without HCTD showed the dependence of IgA levels on TSH concentration. In those with combined MPV the intensity of chemiluminescence was related to the T4 level. The dependence of IgM levels on he presence ofvegetative dysfunction was documented in patients with MVP.
Related Concept Videos
Hypothyroidism II: Pathophysiology
Hyperthyroidism II: Pathophysiology
Graves' Disease I: Introduction
Graves Disease II: Pathophysiology
Functions of Thyroid Hormones
TH is indispensable for the normal development and maturation of the skeletal, muscular, and nervous systems during fetal and childhood growth. It facilitates bone mineral turnover and regulates protein synthesis in developing tissues, contributing significantly to overall growth and...
Synthesis and Regulation of Thyroid Hormones
Upon reaching the thyroid gland, TSH stimulates the follicular cells' active uptake of iodide ions from the blood. The ions diffuse to the apical surface of the cells and are oxidized to iodine. The iodine is then...
