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Fermented Cordyceps militaris Extract Prevents Hepatosteatosis and Adipocyte Hypertrophy in High Fat Diet-Fed Mice

1
Department of Life Science, Gachon University, Sungnam, Gyeonggido 13120, Korea
2
Department of Food Science and Biotechnology, Sejong University, Seoul 05006, Korea
*
Authors to whom correspondence should be addressed.
Nutrients 2019, 11(5), 1015; https://doi.org/10.3390/nu11051015
Received: 8 April 2019 / Revised: 26 April 2019 / Accepted: 4 May 2019 / Published: 6 May 2019
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Abstract

Nonalcoholic fatty liver diseases (NAFLD) is characterized by accumulation of lipid droplets in the liver. The objective of this study was to evaluate protective effects of fermented Cordyceps militaris extract by Pediococcus pentosaceus ON188 (ONE) against hepatosteatosis and obesity in mice fed a high-fat diet (HFD). Eight-week-old male C57BL/6J mice were fed HFD mixed with ONE for four weeks and its effects on hepatosteatosis and obesity were examined. Although ONE did not change food intake, it reduced body weights of mice at administration dose of 200 mg/kg/day. Activities of lactate dehydrogenase (LDH), aspartate transaminase (AST), and alanine transaminase (ALT) as plasma parameters were reduced by ONE in a dose-dependent manner. Hepatic lipid droplets and triglyceride (TG) levels were also reduced by ONE due to upregulation of fatty acid oxidizing genes such as carnithine palmitoyltransferase (CPT1) and peroxisomal proliferator activated receptor α(PPARα) mediated by induction of sphingosine kinase 2 (SPHK2). In epididymal fat tissue, sizes of adipocytes were significantly reduced by ONE in a dose-dependent manner. This is mainly due to suppression of lipogenesis and upregulation of adipocyte browning genes. Collectively, these results suggest that fermented ONE can activate fatty acid oxidation via SPHK2 in the liver. It can also suppress lipogenesis and activate browning in adipose tissue. Thus, ONE might have potential to be used for the development of functional foods against liver dysfunction and obesity. View Full-Text
Keywords: obesity; non-alcoholic steatohepatitis; fatty acid oxidation; fermentation; sphingosine 1-phosphate obesity; non-alcoholic steatohepatitis; fatty acid oxidation; fermentation; sphingosine 1-phosphate
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Tran, N.K.S.; Kim, G.-T.; Park, S.-H.; Lee, D.; Shim, S.-M.; Park, T.-S. Fermented Cordyceps militaris Extract Prevents Hepatosteatosis and Adipocyte Hypertrophy in High Fat Diet-Fed Mice. Nutrients 2019, 11, 1015.

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