all of the thyroxine and about 20 percent of the triiodothyronine produced each day come from the thyroid gland. The remaining 80 percent of triiodothyronine comes from deiodination of thyroxine outside of the thyroid. Most if not all of the action of thyroid hormone in its target tissues is ...
thyroid gland anterior view thyroid gland n. A two-lobed endocrine gland found in all vertebrates, located in front of and on either side of the trachea in humans, and producing various hormones, such as triiodothyronine and calcitonin.
hormone,secretory substance carried from one gland or organ of the body via the bloodstream to more or less specific tissues, where it exerts some influence upon the metabolism of the target tissue. Normally, various hormones are produced and secreted by the endocrine glands (seeendocrine system)...
an RNase that processes hairpin-structured precursors (pre-miRNAs) into mature miRNAs [166]. In general, miRNAs recognise and bind to the 3’-untranslated region (3’-UTR) of target mRNAs to repress the expression of the target gene at the posttranscriptional level...
The enzymatic deiodination of thyroid hormone is an important process since it concerns- among other things- the regulation of thyromimetic activity at the site of the target organ. To understand the mechanism of this regulation it is necessary to have a detailed knowledge of the mode of action...
We have considered the thyroid lobes having an ellipsoidal shape, with a density of 1.05gr/cm3 and the material composition suggested by ICRP. When thyroid gland uptakes radioactive iodine, it is source and target organ at the same time and energy deposition of 131I rays depend on the ...
The significance of the characteristic in the target organ in organ-specific is unknown. We have demonstrated the production of and immunoglobulins (IgG, IgM and IgA) by -derived lymphocytes in and two plaque forming () assays. The appears to be an important site of but the lymphocytes also ...
339–341 Iodine-containing therapeutic agents such as amiodarone produce both hypothyroidism and hyperthyroidism as well as morphological alterations in the thyroid gland in humans.310 As a class, thionamide compounds are some of the most potent inhibitors of thyroid hormones and they are capable of...
The videos were obtained by an experienced sonographer who performed a top-to-bottom transverse scan of the left or right lobe of the thyroid gland. The videos were clear and included target tissues such as the thyroid, trachea, esophagus, and carotid arteries, as required for this study. ...
The effects of targeted cathepsin K gene ablation will be summarized from the perspective of the thyroid gland, and we will propose potential consequences of short- and long-term inhibition of thyroid cathepsin K activity for the main thyroid hormone target tissues, namely bone, cardiovascular and ...