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http://dx.doi.org/10.9721/KJFST.2019.51.1.24

In vitro hepatocyte inflammation by Ephedra sinica extracts  

Kim, Ilrang (Department of Food and Nutrition, Ulsan College)
Publication Information
Korean Journal of Food Science and Technology / v.51, no.1, 2019 , pp. 24-28 More about this Journal
Abstract
In this study, the in vitro hepatotoxic mechanism of Ephedra sinica (ma-huang) was investigated by measuring the degree of cell death, secretion of cytokine, and fat accumulation by treating HepG2 cells with 70% ethanolic extracts of ma-huang. Cell death was observed at concentrations of around $5-100{\mu}g/mL$ by treatment with ma-huang extracts (p<0.05). The secretion of interleukin 8 (IL-8) and macrophage colony-stimulating factor (M-CSF), which are inflammatory cytokines, were significantly promoted at concentrations of around 0.05-100 and $0.5-100{\mu}g/mL$, respectively (p<0.05). In this experiment, it was shown that the extracts of ma-huang stimulate the secretion of inflammatory cytokines, such as IL-8 and M-CSF, and lead to fat accumulation in the hepatocytes, thereby causing inflammation of the hepatocytes. Hepatotoxicity was observed at around 10-500 times lower concentration than the concentration required to cause serious toxicity, such as cell death, suggesting that hepatic toxicity (hepatitis) may be induced at a low dose.
Keywords
Ephedra sinica (ma-huang); inflammation; interleukin-8; macrophage colony-stimulating factor; lipid accumulation;
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