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  2. Antithyroid autoantibodies - Wikipedia

    en.wikipedia.org/wiki/Antithyroid_autoantibodies

    Binding of the antibody to the amino terminus of the TSH receptor shows stimulatory activity, whereas binding to residues 261-370 or 388-403 block the activity. TRAbs are present in 70–100% of Graves' disease (85–100% for activating antibodies and 75–96% for blocking antibodies) and 1–2% of normal individuals. [1] [2] [11] Activating ...

  3. Thyrotropin receptor - Wikipedia

    en.wikipedia.org/wiki/Thyrotropin_receptor

    The TSH receptor is a member of the G protein-coupled receptor superfamily of integral membrane proteins [5] and is coupled to the G s protein. [6] It is primarily found on the surface of the thyroid epithelial cells, but also found on adipose tissue and fibroblasts. The latter explains the reason of the myxedema finding during Graves disease.

  4. Thyroid-stimulating hormone - Wikipedia

    en.wikipedia.org/wiki/Thyroid-stimulating_hormone

    Stimulating antibodies to the TSH receptor mimic TSH and cause Graves' disease. In addition, hCG shows some cross-reactivity to the TSH receptor and therefore can stimulate production of thyroid hormones. In pregnancy, prolonged high concentrations of hCG can produce a transient condition termed gestational hyperthyroidism. [14]

  5. Thyroid function tests - Wikipedia

    en.wikipedia.org/wiki/Thyroid_function_tests

    Thyroid function tests (TFTs) is a collective term for blood tests used to check the function of the thyroid. [1] TFTs may be requested if a patient is thought to suffer from hyperthyroidism (overactive thyroid) or hypothyroidism (underactive thyroid), or to monitor the effectiveness of either thyroid-suppression or hormone replacement therapy.

  6. Antithyroid agent - Wikipedia

    en.wikipedia.org/wiki/Antithyroid_agent

    These two markers are an elevated level of thyroid stimulating hormone receptor antibodies (TSHR-Ab) and smoking. A positive TSHR-Ab at the end of antithyroid drug treatment increases the risk of recurrence to 90% ( sensitivity 39%, specificity 98%), a negative TSHR-Ab at the end of antithyroid drug treatment is associated with a 78% chance of ...

  7. Thyroid disease - Wikipedia

    en.wikipedia.org/wiki/Thyroid_disease

    When the etiology of hyperthyroidism is not clear after initial clinical and biochemical evaluation, measurement of TSH receptor antibodies (TSHRAb) can help make the diagnosis. In Graves' disease, TSHRAb levels are elevated as they are responsible for activating the TSH receptor and causing increased thyroid hormone production.