Triiodothyronine, also called T3, is a thyroid hormone. It affects almost every physical process in the body, including development and metabolism, body temperature and heart rate.
The production of T3 and its prohormone thyroxine (T4) is activated by thyroid-stimulating hormone (TSH), which is freed from the anterior pituitary gland. This passage is part of a closed-loop reaction process: T3, and high concentrations of T4 in the blood plasma prevents the production of TSH in the anterior pituitary gland. Since the concentration of these hormones decreases, the anterior pituitary gland increases the production of TSH, and through these processes, the reaction reaction system stabilizes the amount of thyroid hormones present in the blood stream.
Triiodothyronine is true hormone. Its effect on target tissues is almost four times more powerful than T4. In the produced thyroid hormone, approximately 20% is T3, whereas 80% is produced as T4. About 85% of circulation T3 is made later in the liver and anterior pituitary by removing iodine atoms from the carbon atom number five of the outer ring of T4. In any case, the concentration of T3 in human blood plasma is one-fourth of T4. Half life of T3 is about 2.5 days. Half life of T4 is approximately 6.5 days.
What is Triiodothyronine?
Triiodothyronine thyroid hormone is an active form of thyroxine. Approximately 20% of Triiodothyronine is secretly hidden in the blood stream by thyroid gland. The remaining 80% is caused by the conversion of thyroxine by the organs such as the liver and kidneys. Thyroid hormones play an important role in regulating the body’s metabolic rate, heart and digestive function, muscle control, brain development and functioning, and bone maintenance. Read More
Triiodothyronine thyroid hormone is an active form of thyroxine. Approximately 20% of Triiodothyronine is secretly hidden in the blood stream by thyroid gland. The remaining 80% is caused by the conversion of thyroxine by the organs such as the liver and kidneys. Thyroid hormones play an important role in regulating the body’s metabolic rate, heart and digestive function, muscle control, brain development and functioning, and bone maintenance. Read More
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