Energy expenditure modulation

Energy expenditure modulation is a physiological process and pharmacological strategy aimed at increasing the body's rate of calorie consumption, primarily for the treatment of obesity and related metabolic disorders [1, 3]. It involves the regulation of basal metabolic rate (BMR) and the induction of thermogenesis, often through the activation of brown adipose tissue (BAT) or mitochondrial uncoupling [1, 6]. While often categorized alongside appetite suppression and nutrient absorption inhibition as a target for weight loss interventions, it represents a complex integration of multiple molecular pathways rather than a specific single molecular entity such as a receptor or enzyme [3, 8]. Key molecular mediators that facilitate this modulation include mitochondrial uncoupling proteins like UCP1, the beta-3 adrenergic receptor, and hypothalamic regulators within the melanocortin system [6, 11]. Therapeutic agents such as mirabegron and certain glucagon-like peptide 1 (GLP-1) receptor agonists are investigated for their secondary effects on energy expenditure, although clinical use is often constrained by safety concerns like cardiovascular strain and the risk of hyperthermia [1, 9].

Other names

Thermogenesis regulationMetabolic rate modulationEnergy homeostasisThermogenic activationBasal metabolic rate regulation

Enhancement of metabolic rate and thermogenesis through the activation of mitochondrial uncoupling proteins (UCPs), stimulation of beta-3 adrenergic receptors in adipose tissue, and modulation of central hypothalamic circuits to increase sympathetic drive and brown fat activity [1, 3, 6, 11].