Preprint Article Version 1 This version is not peer-reviewed

Effects of Rhizome Extract of Dioscorea Batatas and Its Active Compound, Allantoin, on the Regulation of Myoblast Differentiation and Mitochondrial Biogenesis in C2C12 Myotubes

Version 1 : Received: 25 June 2018 / Approved: 25 June 2018 / Online: 25 June 2018 (16:32:43 CEST)

How to cite: Ma, J.N.; Kang, S.Y.; Park, J.H.; Park, Y.; Jung, H.W. Effects of Rhizome Extract of Dioscorea Batatas and Its Active Compound, Allantoin, on the Regulation of Myoblast Differentiation and Mitochondrial Biogenesis in C2C12 Myotubes. Preprints 2018, 2018060398 (doi: 10.20944/preprints201806.0398.v1). Ma, J.N.; Kang, S.Y.; Park, J.H.; Park, Y.; Jung, H.W. Effects of Rhizome Extract of Dioscorea Batatas and Its Active Compound, Allantoin, on the Regulation of Myoblast Differentiation and Mitochondrial Biogenesis in C2C12 Myotubes. Preprints 2018, 2018060398 (doi: 10.20944/preprints201806.0398.v1).

Abstract

The present study was conducted to investigate the effects of rhizome extract of Dioscorea batatas (Dioscoreae Rhizoma, Chinese Yam) and its bioactive compound, allantoin, on myoblast differentiation and mitochondrial biogenesis in skeletal muscle cells. Yams were extracted in water and the extract was analyzed by HPLC. The expression of C2C12 myotubes differentiation and mitochondrial biogenesis regulators were determined by reverse transcriptase (RT)-PCR or Western blot. The glucose levels and total ATP contents were determined by glucose consumption, glucose uptake and ATP assays, respectively. Treatment with yam extract (1 mg/mL) and allantoin (0.2 and 0.5 mM) significantly increased of MyHC expression compared with non-treated myotubes. Yam extract and allantoin significantly increased the expression of mitochondrial biogenesis regulating proteins, PGC1?, Sirt-1, NRF-1, and TFAM, as well as the phosphorylation of AMPK and ACC in C2C12 myotubes. Furthermore, yam extract and allantoin significantly increased the glucose uptake levels and the ATP contents. Finally, HPLC analysis revealed that the yam extract contained 1.53% of allantoin. Yam extract and allantoin, stimulated myoblast differentiation into myotubes and increased energy production through upregulation of mitochondrial biogenesis regulators. These findings indicate that yam extract and allantoin can help to prevent the skeletal muscle dysfunction through stimulation of energy metabolism.

Subject Areas

Allantoin; Chinese Yam; C2C12 cells; Dioscorea batatas; Dioscoreae Rhizoma; Myoblast differentiation; Mitochondrial biogenesis

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