Brown adipose tissue (BAT)

Brown adipose tissue is a highly vascularized, mitochondrial-rich tissue found in mammals, especially abundant in newborns and small mammals but also present in adults[3][4][7]. Its primary function is to produce heat via non-shivering thermogenesis, mainly through the mitochondrial protein uncoupling protein 1 (UCP1)[1][3][5][8]. BAT receives sympathetic innervation; norepinephrine stimulates β-adrenergic receptors on brown adipocytes, activating lipolysis and subsequent mitochondrial uncoupling, resulting in conversion of chemical energy into heat. Recent research has highlighted the endocrine role of BAT, with secreted factors (batokines) influencing systemic glucose and lipid metabolism. Brown adipose tissue is being actively investigated as a modulator of energy balance and a potential "therapeutic target" in obesity and metabolic diseases, though it is an organ/tissue and not a canonical molecular drug target[2][5][3]. Note: Brown adipose tissue is not a single receptor, enzyme, or protein. It is a tissue/organ, and while often called a "therapeutic target," this usage is broader than the molecular definition generally sought for pharmacological targets. If you require information about a specific *molecular target* associated with BAT (such as β3-adrenergic receptor or UCP1), please specify.

Other names

brown fatBATbrown adipocyte tissuebrown adipocytes

Stimulation of β3-adrenergic receptors leading to UCP1-mediated mitochondrial uncoupling and heat production