tetraiodothyronine
Học thuậtThân thiện
A scientist examines a molecular model of tetraiodothyronine in a laboratory.
Definition
- Noun:
- A hormone produced by the thyroid gland: Tetraiodothyronine is the primary hormone secreted by the thyroid gland. Its main function is to regulate the body's metabolic rate by controlling the speed of cellular processes.
- A chemical compound: It is an iodine-containing amino acid derivative. Chemically, it is known as thyroxine and is often abbreviated as T4.
Usage Examples
- Noun:
- The doctor ordered a test to measure the level of tetraiodothyronine in her blood.
- A deficiency in tetraiodothyronine can lead to symptoms of hypothyroidism, such as fatigue and weight gain.
- Tetraiodothyronine is critical for normal growth and development.
Advanced Usage
- Medical Context: In clinical settings, "tetraiodothyronine" is often referred to by its common name, thyroxine, or its abbreviation, T4. It is typically measured as part of a thyroid function panel to diagnose thyroid disorders.
- The lab report showed her free T4 (tetraiodothyronine) levels were within the normal range.
Variants and Related Words
- Thyroxine (n): The common name for tetraiodothyronine. This term is used more frequently in general and medical contexts.
- The patient was prescribed synthetic thyroxine.
- T4 (n): The standard abbreviation for thyroxine/tetraiodothyronine.
- The T4 test is a standard part of a thyroid check-up.
- Triiodothyronine (n): Often abbreviated as T3, this is another, more metabolically active hormone produced by the thyroid gland, closely related to T4.
- The body converts some T4 into triiodothyronine (T3) in the tissues.
Synonyms
- Thyroxine: The direct and most common synonym.
- T4: The abbreviated synonym used primarily in medical contexts.
Related Terms and Concepts
- Thyroid gland: The endocrine gland that produces tetraiodothyronine.
- Metabolism: The set of life-sustaining chemical reactions whose rate is regulated by this hormone.
- Hypothyroidism: A condition characterized by underproduction of thyroid hormones like tetraiodothyronine.
- Hyperthyroidism: A condition characterized by overproduction of thyroid hormones like tetraiodothyronine.
A scientist examines a molecular model of tetraiodothyronine in a laboratory.
Noun
- hormone produced by the thyroid glands to regulate metabolism by controlling the rate of oxidation in cells
- thyroxine is 65% iodine