Related Experiment Videos
[From gene to disease; thyroid stimulating hormone receptor, hyperthyroidism and hypothyroidism]
1Academisch Medisch Centrum/Universiteit van Amsterdam, afd. Inwendige Ziekten, onderafd. Endocrinologie en Metabolisme, Meibergdreef 9, 1105 AZ Amsterdam. w.m.wiersinga@amc.uva.nl
Nederlands Tijdschrift Voor Geneeskunde
|May 31, 2001
Summary
Thyroid-stimulating hormone receptor (TSH-R) gene mutations cause various thyroid disorders. Different mutation types and locations lead to TSH resistance, hyperthyroidism, and toxic adenomas.
Area of Science:
- Endocrinology and genetics
- Molecular biology of hormone receptors
Context:
- The thyroid-stimulating hormone receptor (TSH-R) plays a crucial role in thyroid function.
- Genetic variations in the TSH-R gene are linked to significant endocrine disorders.
Purpose:
- To analyze the mutational landscape of the TSH-R gene.
- To correlate specific TSH-R mutations with distinct clinical phenotypes.
Summary:
- Loss-of-function germline mutations in the TSH-R extracellular domain cause familial TSH resistance.
- Gain-of-function germline mutations in the transmembrane domain lead to familial non-autoimmune hyperthyroidism.
- Hypersensitivity to chorionic gonadotropin due to mutant TSH-R causes gestational hyperthyroidism.
- Somatic gain-of-function mutations are a primary cause of toxic thyroid adenomas.
Impact:
- Understanding TSH-R mutations aids in diagnosing and managing thyroid diseases.
- Identifies genetic targets for potential therapeutic interventions in thyroid disorders.
- Provides insights into the structure-function relationship of G protein-coupled receptors.