Abstract
The present study was designed to investigate the effects of hot water and ethanol extracts of Nelumbo nucifera Gaertner flower on lipid accumulation and reactive oxygen species (ROS) production during adipogenesis in 3T3-L1 cells. 3T3-L1 preadipocytes were treated with both hot water and ethanol extracts for up to 8 days following standard induction of differentiation. Regarding anti-adipogenic activity, compared with the control, the hot water and ethanol extracts significantly inhibited lipid accumulation (37.4 and 66.6%, respectively) and ROS production (46.4 and 46.8%, respectively) during adipogenesis in 3T3-L1 cells. Treatment with hot water and ethanol extracts significantly inhibited mRNA expression of peroxisome proliferator-activated receptor gamma (PPARγ) and CCAAT/ enhancer-binding protein alpha (C/EBPα), thereby reducing the mRNA expression of adipocyte-specific fatty acid binding protein (aP2). Moreover, both the extracts significantly inhibited mRNA expression of NADPH oxidase (NOX4). Overall, our research suggests that N. nucifera Gaertner flower extracts might be a valuable source of bioactive compounds that exhibit anti-adipogenic activity and could have applications in the field of medicine and food industry.
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