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Thyroglobulin antibodies are specific for thyroglobulin, a 660 kDa matrix protein involved in the process of thyroid hormone production. They are found in 70% of Hashimoto's thyroiditis, 60% of idiopathic hypothyroidism, 30% of Graves' disease, a small proportion of thyroid carcinoma and 3% of normal individuals.
Thyrotoxicosis factitia (alimentary thyrotoxicosis, exogenous thyrotoxicosis) [1] [2] is a condition of thyrotoxicosis caused by the ingestion [3] of exogenous thyroid hormone. [4] [5] It can be the result of mistaken ingestion of excess drugs, such as levothyroxine [6] and triiodothyronine, [7] or as a symptom of Munchausen syndrome.
The diagnosis of subacute thyroiditis can be made clinically by eliciting risk factors, associated symptoms, and physical examination. [1] [2] [3] Further work-up to differentiate between the etiologies of subacute thyroiditis can include: thyroid function tests (TFTs), inflammatory markers, complete blood count (CBC), and thyroid antibodies.
Later on in the same year, researchers from the Middlesex Hospital in London were able to perform human experiments on patients who presented with similar symptoms. They purified anti-thyroglobulin antibody from their serum and were able to conclude that these sick patients had an immunological reaction to human thyroglobulin. [4]
While typically normal, the blood leukocyte count may be slightly increased. There may be anemia that is normochromic and normocytic. Thyroid function testing frequently reveals decreased thyroid stimulating hormone (TSH) and increased serum levels of triiodothyronine (T3) and thyroxine (T4) during the acute phase of the disease. [ 2 ]
Thyroid disease is a medical condition that affects the function of the thyroid gland.The thyroid gland is located at the front of the neck and produces thyroid hormones [1] that travel through the blood to help regulate many other organs, meaning that it is an endocrine organ.
(Antibodies to thyroglobulin and to the thyroid hormones T3 and T4 may also be produced.) These antibodies cause hyperthyroidism because they bind to the TSHr and chronically stimulate it. The TSHr is expressed on the thyroid follicular cells of the thyroid gland (the cells that produce thyroid hormone), and the result of chronic stimulation is ...
Graves' ophthalmopathy is diagnosed clinically by the presenting ocular signs and symptoms, but positive tests for antibodies (anti-thyroglobulin, anti-microsomal and anti-thyrotropin receptor) and abnormalities in thyroid hormones level (T3, T4, and TSH) help in supporting the diagnosis. [citation needed]