The recent re-discovery of brown adipose tissue (BAT) and even more recent discovery of the browning of white adipose tissue (WAT) in humans have generated intense scientific interest in the role of adipose tissue as potential target against obesity and its metabolic complications. The purpose of this review is to: i) critically evaluate the current evidence on the physiological significance of BAT and the browning of WAT in metabolic function in humans and ii) discuss factors that have been reported to regulate BAT and/or the browning of WAT in humans. The current literature supports that BAT and the browning of WAT constitute promising emerging targets for interventions aiming to prevent and/or treat of obesity and its metabolic complications. Further research is needed to better understand the physiological significance of BAT and browning of WAT in health and disease along with the factors modulating their metabolic function in humans.
Keywords: Glucose metabolism; Insulin sensitivity; Lipid metabolism; Obesity; Thermogenesis.
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