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Related to hyperthyroidic: thyrotoxicosis


see thyroid glandthyroid gland,
endocrine gland, situated in the neck, that secretes hormones necessary for growth and proper metabolism. It consists of two lobes connected by a narrow segment called the isthmus. The lobes lie on either side of the trachea, the isthmus in front of it.
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an increase in the function of the thyroid gland. Hyperthyroidism is one of the manifestations of a toxic diffuse goiter. It usually arises as a result of psychic trauma and sometimes with certain diseases and conditions, such as tuberculosis, rheumatism, or pregnancy. More rarely it is the result of an infection. It is manifested by increased excitability of the nervous system, intensification of reflexes, slight psychic agitation, rapid fatigability, acceleration of pulse rate, trembling of the hands, tendency to perspire, increase in basal metabolic rate, and weight loss. Hyperthyroidism is often combined with dysfunctions of other endocrine glands. Treatment for it includes remedies that calm the nervous system and microdoses of iodine.



The constellation of signs and symptoms caused by excessive thyroid hormone in the blood, either from exaggerated functional activity of the thyroid gland or from excessive administration of thyroid hormone, and manifested by thyroid enlargement, emaciation, sweating, tachycardia, exophthalmos, and tremor. Also known as exophthalmic goiter; Grave's disease; thyrotoxicosis; toxic goiter.
References in periodicals archive ?
(2002), however, reported that brain neuronal and glial cell differentiation is affected in offspring of partially thyroidectomized rats rendered moderately hyperthyroidic by daily infusion of [T.sub.4], suggesting that maternal hyperthyroidism may affect fetal neurodevelopment.
The increase in hepatic glucose-6-phosphatase activity, a thyroid-dependent parameter in hyperthyroidic animals was also decreased by the administration of quercetin.
Forty-eight rats of either sex were rendered hyperthyroidic by daily subcutaneous injection of L-thyroxine ([T.sub.4]) at a dose of 300 [micro]g/kg body wt./d for 12 consecutive days as reported previously (Tahiliani and Kar, 2003); they were then divided into six (VII to XII) groups of eight each.