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KMID : 1161420180210030225
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Journal of Medicinal Food
2018 Volume.21 No. 3 p.225 ~ p.232
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Lipolysis-Stimulating Peptide from Soybean Protects Against High Fat Diet-Induced Apoptosis in Skeletal Muscles
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Asokan Shibu Marthandam
Hung Tsu-Han
Chiang Wen-Dee
Lin Wan-Teng
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Abstract
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Obesity is generally associated with low-grade chronic inflammation that involves the recruitment of macrophages and other inflammation factors to the adipocytes of obese individuals. Tumor necrosis factor-alpha (TNF-α), a cytokine associated with systemic inflammation, is elevated in conditions of obesity. TNF-α is an important factor that plays an important role in skeletal muscle wasting. Apoptosis of myonuclei contributes to the loss of muscle mass and therefore plays an important role in skeletal muscle atrophy. In mouse models that were fed a high fat diet (HFD), a lipolysis-stimulating peptide-VHVV (purified from hydrolysate resulting from flavourzyme treatment of soy protein) was found to reduce HFD-related apoptotic effects in mice skeletal muscle and potentially control atrophy. HFD fed mice had heavier body weight than those fed with normal chow, and VHVV administration restricted lipid accumulation in muscle tissues of mice fed with HFD but increased nutrient uptake. Moreover, specific concentrations of VHVV regulated TNF-α expression that was elevated by HFD, suppressed apoptosis-related proteins and regulated the proteins of lipid metabolism.
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KEYWORD
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apoptosis, high fat diet, lipolysis-stimulating peptides, NAFLD, obesity
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