Thyroid-stimulating immunoglobulin stimulates both the secretion and growth of the thyroid similar to TSH.

Question

Quizplus · Accepted Answer

Thyroid-stimulating immunoglobulin (TSI) is an antibody that binds to and activates the TSH receptor on thyroid cells, leading to increased production and secretion of thyroid hormone. TSI mimics the action of TSH and can lead to hyperthyroidism in individuals with autoimmune thyroid disease, such as Graves' disease. In addition to stimulating thyroid hormone production, TSI can also promote the growth and proliferation of thyroid cells, further contributing to the development of hyperthyroidism.

Thyroid-Stimulating Immunoglobulin Stimulates Both the Secretion and Growth of the Thyroid