Methanolic Extract of Turmeric (Curcuma longa L.) Enhanced the Lipolysis by Up-regulation of Lipase mRNA Expression in Differentiated 3T3-L1 Adipocytes
Effects of methanol extract from turmeric (Curcuma longa L.) (CME) on underlying mechanisms of lipolysis were investigated in 3T3-L1 adipocytes. Compared to the control, lipid accumulation with 72 hr treatment of CME at the concentration 20 μg/mL was significantly decreased by 19.9% as quantified by Oil red O dye. Intracellular triglyceride (TG) content was also lowered by 19.3%. To determine the mechanism for TG content reduction, glycerol release level was measured. Incubation of 3T3-L1 adipocytes with 15 and 20 μg/mL of CME significantly elevated the level of free glycerol released into the cultured medium by 20.4 and 28.6%, respectively. In subsequent measurements using quantitative real-time polymerase chain reaction (PCR), mRNA levels of hormone-sensitive lipase (HSL) and adipose triglyceride lipase (ATGL) were significantly increased by 21.2 and 24.9%, respectively, at the concentration 20 μg/mL. Results indicated that CME stimulated lipolysis through induction of HSL and ATGL mRNA expressions, resulting in increased glycerol release.
목차
Abstract Introduction Materials and Methods Results and Discussion References
키워드
Curcuma longa L.lipid accumulationlipolysislipase3T3-L1
저자
Jeongmin Lee [ Clinical Research Center, Department of Medical Nutrition, Kyung Hee University ]
Woojin Jun [ Department of Food and Nutrition, Human Ecology Research Institute, Chonnam National University ]
Corresponding author