OBJECTIVE: To investigate activation of brown adipose tissue (BAT) stimulated by medium-chain triglyceride (MCT). METHODS: 30 Male C57BL/6J obese mice induced by fed high fat diet (HFD) were divided into 2 groups, and fed another HFD with 2% MCT or long-chain triglyceride (LCT) respectively for 12 weeks. Body weight, blood biochemical variables, interscapular brown fat tissue (IBAT) mass, expressions of mRNA and protein of beta 3-adrenergic receptors (β3-AR), uncoupling protein-1 (UCP1), hormone sensitive lipase (HSL), protein kinase A (PKA), and adipose triglyceride lipase (ATGL) in IBAT were measured. RESULTS: Significant decrease in body weight and body fat mass was observed in MCT group as compared with LCT group (P<0.05) after 12 weeks. Greater increases in IBAT mass was observed in MCT group than in LCT group (P<0.05). Blood TG, TC, LDL-C in MCT group were decreased significantly, meanwhile blood HDL-C, ratio of HDL-C/LDL-C and norepinephrine were increased markedly. Expressions of mRNA and protein of β3-AR, UCP1, PKA, HSL, ATGL in BAT were greater in MCT group than in LCT group (P<0.05). CONCLUSION: Our results suggest that MCT stimulated the activation of BAT, possible via norepinephrine pathway, which might partially contribute to reduction of the body fat mass in obese mice fed high fat diet.
OBJECTIVE: To investigate activation of brown adipose tissue (BAT) stimulated by medium-chain triglyceride (MCT). METHODS: 30 Male C57BL/6J obesemice induced by fed high fat diet (HFD) were divided into 2 groups, and fed another HFD with 2% MCT or long-chain triglyceride (LCT) respectively for 12 weeks. Body weight, blood biochemical variables, interscapular brown fat tissue (IBAT) mass, expressions of mRNA and protein of beta 3-adrenergic receptors (β3-AR), uncoupling protein-1 (UCP1), hormone sensitive lipase (HSL), protein kinase A (PKA), and adipose triglyceride lipase (ATGL) in IBAT were measured. RESULTS: Significant decrease in body weight and body fat mass was observed in MCT group as compared with LCT group (P<0.05) after 12 weeks. Greater increases in IBAT mass was observed in MCT group than in LCT group (P<0.05). Blood TG, TC, LDL-C in MCT group were decreased significantly, meanwhile blood HDL-C, ratio of HDL-C/LDL-C and norepinephrine were increased markedly. Expressions of mRNA and protein of β3-AR, UCP1, PKA, HSL, ATGL in BAT were greater in MCT group than in LCT group (P<0.05). CONCLUSION: Our results suggest that MCT stimulated the activation of BAT, possible via norepinephrine pathway, which might partially contribute to reduction of the body fat mass in obesemice fed high fat diet.
Authors: James M Law; David E Morris; Valerie Astle; Ellie Finn; José Joaquín Muros; Lindsay J Robinson; Tabitha Randell; Louise Denvir; Michael E Symonds; Helen Budge Journal: J Endocr Soc Date: 2019-10-11
Authors: María Calderon-Dominguez; David Sebastián; Raquel Fucho; Minéia Weber; Joan F Mir; Ester García-Casarrubios; María Jesús Obregón; Antonio Zorzano; Ángela M Valverde; Dolors Serra; Laura Herrero Journal: PLoS One Date: 2016-07-20 Impact factor: 3.240