ORLANDO, Florida — In the ongoing debate over the treatment of hypothyroidism with a combination of levothyroxine (T4) and triiodothyronine (T3), a new randomized, crossover study shows safety but no ...

Amid the ongoing uncertainties over the role of combination therapy in the treatment of hypothyroidism, endocrinology experts have issued a consensus statement that new clinical trials are warranted ...

The thyroid hormones, thyroxine (T4) and triiodothyronine (T3), are tyrosine-based hormones produced by the thyroid gland. An important component in the synthesis is iodine. The thyronines act on the ...

The thyroid is a butterfly shape gland situated in front of the neck. It produces thyroid hormones called T3 and T4 under the effect of Thyroid-stimulating hormone (TSH) which is secreted from the ...

The thyroid gland produces two thyroid hormones, triiodothyronine (T3) and thyroxine (T4), and releases them as needed by the body. The hypothalamus and the pituitary gland help control the thyroid ...

Thyroid conditions, including hypothyroidism, hyperthyroidism, and thyroid cancer, are common. For example, up to 7% of the U.S. population has hypothyroidism, a condition in which your thyroid ...

Dear Dr. Roach: If levothyroxine (the T4 hormone) has a long half-life (seven days), how does the pituitary gland provide fine control of the thyroid’s T4 hormone during a short time period (minutes, ...

The importance of the thyroid hormone axis in the regulation of skeletal growth and maintenance has been well established from clinical studies involving patients with mutations in proteins that ...