Steroid/thyroid

Peroxisome proliferator-activated receptors (PPARs) are lipid-activated transcription factors that belong to the steroid/thyroid/retinoic acid receptor superfamily. All their characterized target genes encode proteins that participate in lipid homeostasis. The recent finding that antidiabetic thiazolidinediones and adipogenic prostanoids are ligands of one of the PPARs reveals a novel signaling pathway that directly links these compounds to processes involved in glucose homeostasis and lipid metabolism including adipocyte differentiation. A detailed understanding of this pathway could designate PPARs as targets for the development of novel efficient treatments for several metabolic disorders.

Thyroid storm is a life-threatening condition of the hyperthyroid state. 26 It most commonly occurs in patients with Graves' disease but may also occur in those with multinodular goiter or toxic adenoma. 27 It is treated by correcting the hyperthyroidism and treating the precipitating events. 26 Correction of the hyperthyroid state involves using drugs such as propylthiouracil or methimazole (Tapazole), beta blockers or corticosteroids, which decrease the peripheral effects of thyroid hormone and the conversion of thyroxine (T 4 ) to the more potent triiodothyronine (T 3 ). 22 , 26 Dexamethasone can be used for that purpose, at a dosage of 2 mg intravenously every six hours, and can eventually can be switched to an oral dosage of 2 mg every six hours. 28

Steroid/thyroid

steroid/thyroid

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