Thyrotoxicosis can also cause menstrual irregularities, an increase in bowel movements, weight loss, heat intolerance, fatigue and irritability. Thyrotoxicosis is commonly caused by hyperthyroidism, tumors in the thyroid gland or thyroid inflammation.
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Patients may also have problems with concentration and memory. Some of these symptoms also occur in depression or other psychiatric disorders, and there may be links between hypothyroidism and depression, although the evidence is conflicting and doubtful.
Clinical hypothyroidism is identified by an abnormally high level of TSH and abnormally low levels of thyroid hormones. It is treated with a synthetic form of thyroxine, taken in a pill.
But there may be just enough evidence to explore these possibilities further and to recommend tests of thyroid function in seriously depressed patients. August 2007 update August 1, 2007 Share this page: Print this page: Print this page.
The interest for mental health is that thyroid deficiency may be associated with cognitive and emotional disturbances, and thyroid hormones may be useful in the treatment of depression. Sitting at the base of the throat, the thyroid gland produces hormones that regulate basal metabolic rate, the speed at which our bodies burn food for energy.
About 25 of those taking thyroxine improved, compared with 16 of those taking lithium. Examining all the findings so far, an expert panel has concluded that there is not enough evidence to associate TSH levels with psychiatric symptoms or to recommend thyroxine treatment for depressed patients.
Thyroxine is a hormone the thyroid gland secretes into the bloodstream. Once in the bloodstream, thyroxine travels to the organs, like the liver and kidneys, where it is converted to its active form of triiodothyronine.
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Thyroxine plays a crucial role in heart and digestive function, metabolism, brain development, bone health and muscle control. It affects almost all of the body's systems, which means proper thyroxine levels are vital for health.