T-3

T-3 or Triiodothyronine is a thyroid hormone that plays a crucial role in the body's overall metabolism. It is produced by the thyroid gland and is the most potent form of thyroid hormone.

Production and Function

T-3 is primarily produced in the thyroid gland, which is located in the neck. The production of T-3 is stimulated by the thyroid-stimulating hormone (TSH) which is released by the pituitary gland.

The primary function of T-3 is to regulate the body's metabolism. It does this by influencing the metabolic activity of cells and tissues. This includes the regulation of protein synthesis, carbohydrate metabolism, and lipid metabolism.

Measurement and Clinical Significance

The levels of T-3 in the body can be measured through a blood test. This is often done as part of a broader thyroid function test to assess the overall health and function of the thyroid gland.

Abnormal levels of T-3 can indicate a variety of thyroid disorders. High levels of T-3 may indicate hyperthyroidism, a condition where the thyroid gland is overactive. On the other hand, low levels of T-3 may indicate hypothyroidism, a condition where the thyroid gland is underactive.

See Also

• Thyroid hormone
• Thyroid function test
• Hyperthyroidism
• Hypothyroidism