Research Article

Catalpol Attenuates Hepatic Steatosis by Regulating Lipid Metabolism via AMP-Activated Protein Kinase Activation

Figure 1

Catalpol inhibits palmitate- (PA-) induced triglyceride (TG) accumulation in HepG2 cells. HepG2 cells were treated with PA (300 μM) and/or catalpol (100, 200, or 400 μM) for 24 h. (a) Lipid accumulation was determined via Oil Red O staining. Images of cells were photographed at 200x magnification: (i) control, (ii) PA (300 μM), (iii) PA (300 μM)+catalpol (100 μM), (iv) PA (300 μM)+catalpol (200 μM), and (v) PA (300 μM)+catalpol (400 μM). (b) A larger red area consisting of lipid droplets in HepG2 cells. (c) Measurement of intracellular TG content. Data are presented as the of three independent experiments. vs. the Normal group; #, ## vs. the PA group.
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