Thyroid and You

Pituitary Gland

Location of Pituitary Gland
Location of Pituitary Gland

Your Pituitary gland is the main endocrine (hormone producing) gland that sits just beneath the base of the brain. It is very small in size (only about the size of a pea).

It produces hormones that controls the function of many other hormone glands in your body (especially the thyroid, adrenals, ovaries and testicles). Therefore, the pituitary gland is often called the master gland of the endocrine system.

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What is TSH ?

TSH stands for thyroid stimulating hormone. It is produced and released into the bloodstream by the pituitary gland (a pea-sized structure), which is located at the base of your brain. It is responsible for regulating many hormones released by the thyroid gland.

Furthermore, your thyroid gland controls different bodily functions, including metabolic rate, heart and digestive functions, muscle control, brain development, by releasing a steady amount of thyroid hormones.

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What is T3 and T4

The thyroid gland produce two major hormones called Triiodothyronine (T3) and Thyroxine (T4). The thyroid gland takes iodine, found in our diet, combines it with an amino acid (Tyrosine) and converts it into T3 and T4.

  • T3 – Triiodothyronine: Containing three iodine atoms.
  • T4 – Thyroxine: Containing four iodine atoms
T3 Triiodothyronine
T4 Thyroxine
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What is an Endocrinologist

What is an Endocrinologist

An endocrinologist is a specially trained doctors who is qualified to diagnose diseases that affect the hormone making glands.

The conditions that are treated by an endocrinologist are as following:

  • Thyroid diseases
  • Diabetes
  • Hypertension
  • Menopause
  • Over or under production of hormones
  • Lack of growth
  • Metabolic disorders
  • Lipid disorders
  • Cancers of the endocrine glands
  • Osteoporosis

The common diseases and disorders that endocrinologists deal with include diabetes and thyroid disorders.

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Antithyroid Medications

Antithyroid Medications

Antithyroid medications are used to treat an overactive thyroid gland (also know as hyperthyroidism). When the thyroid gland is overactive, it makes too much thyroxine (also known as T4). The extra thyroxine can accelerate the metabolism rate of your body. As a result, it can cause weight loss and irregular heart activity.

Therefore, antithyroid medications (which includes methimazole and propylithiouracil) are used to reduce the amount of hormone (T4) released by the thyroid gland. These drugs does not affect the thyroxine which is already made, but reduce the further production. Therefore, it may take four to eight weeks of treatment for your thyroxine level to come down to normal.

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