Looking for the Mechanism of Action of Thyroid Hormone

Table 1

Multiplicity of physiological and biochemical actions of thyroid hormone.

Growth and developmental actions	Metabolic actions
Rate of postnatal growth of many mammalian and avian tissues	Regulation of basal metabolic rate in endotherms
Functional and biochemical maturation of fetal brain and bone	Movement of water and Na^+ ions across cell membranes
	Calcium and phosphorus metabolism
Morphogenesis, gene switching, and cell death in amphibian larval metamorphosis	Regulation of metabolism of cholesterol and other lipids
Control of molting in birds	Nitrogen (urea, creatine) metabolism
Regulation of synthesis of mitochondrial respiratory enzymes and membranes	Control of oxidative phosphorylation and energy metabolism