KMID : 1161520160200060335
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Animal Cells and Systems 2016 Volume.20 No. 6 p.335 ~ p.343
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Anti-obesity effect of Solidago virgaaurea extract in high-fat diet-fed SD rat
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Kim Chea-Ha
Lee Jeong-Min Jang Young-Soo Jeon Jeong-Ho Lim Soon-Sung Kim Sung-Chan Kim Jae-Bong Park Jae-bong Lee Jae-Yong
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Abstract
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In our previous report, Solidago virgaurea var. gigantea (SV) extract was shown to exhibit anti-adipogenesis activity in 3T3-L1 adipocyte cells. In this study, anti-obesity activity of SV extract was investigated in in vivo animal model. Sprague-Dawley (SD) rats were administered with high-fat diet, and the effect of SV extract was tested. SD rats were treated orally with SV extract for eight weeks, and their body weight was measured every week. The oral treatment of SV extract decreased body weight, fat tissue weight, blood low-density lipoprotein-cholesterol level, and blood triglycerides level. The p-AMP-activated protein kinase (AMPK) (AMP kinase) protein level in the fat tissue of the SV extract-treated SD rats increased. The protein levels of AMPK-downstream proteins, c-AMP response element binding protein and acetyl-CoA carboxylase, fatty acid synthase, and FABP4 decreased, indicating that SV extract-activated AMPK induced inhibition of adipogenesis and lipid biosynthesis in fat tissue. 1H-NMR measurements of the lipid soluble liver extract showed a decrease in the lipid metabolites, indicating that SV extract-activated fatty acid oxidation in the liver. Overall, our results suggest that orally treated SV extract has excellent anti-obesity effect against HFD-induced obesity of SD rat.
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KEYWORD
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Solidago virgaaurea extract, high-fat diet, SD rat, anti-obesity, AMPK
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