Modulatory effects of functional rice cultivars giant embryo and Aranghyangchal on the body weight and lipid metabolism
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J. Crop Sci. Biotech. 2013 (June) 16 (2) : 167~171 DOI No. 10.1007/s12892-013-0055-0 RESEARCH ARTICLE
Modulatory Effects of Functional Rice Cultivars Giant Embryo and Aranghyangchal on the Body Weight and Lipid Metabolism in Mice Fed with a High Fat Diet Mi Young Kang1, Jung Eun Moon1, Sang Chul Lee2,* Department of Food Science and Nutrition, Kyungpook National University, Daegu 702-701, Republic of Korea Division of Plant Biosciences, Kyungpook National University, Daegu 702-701, Republic of Korea
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Received: Received: May 06, 2013 / Accepted: May 09, 2013 Ⓒ Korean Society of Crop Science and Springer 2013
Abstract The effects of the functional rice cultivars giant embryo and Aranghyangchal on the body weight and lipid metabolism in male C57BL/6N mice under high fat diet conditions were investigated. The animals were randomly placed into four dietary groups: normal control (NC group), high fat (HF group), and high fat supplemented with giant embryo (HF-GE group) or Aranghyangchal (HFAR group). After 8weeks, a marked increase in the body weight and plasma triglyceride and total cholesterol concentrations were found in the HF mice relative to the control group. However, the addition of the functional rice samples in the high fat diet reduced the body weight gain and significantly decreased the lipid levels through inhibition of lipogenesis and regulation of adipokine production. The results demonstrate that the functional rice grains giant embryo and Aranghyangchal may both be useful as biomaterials in the development of functional food with therapeutic potential against high fat diet-induced hyperlipidemia. Key words: body weight, functional rice, high fat diet, mice, plasma lipid
Introduction In the recent years, functional foods have gained popularity worldwide due to their reported hypocholesterolemic, antidiabetic, and anti-obesity (Ejtahed et al. 2012; Mermel 2004; Siro et al. 2008) effects. Traditional foods are modified through genetic manipulation or fortification to contain functional components that have health beneficial properties (Siro et al. 2008). Due to the increasing consumer demand for functional foods, rice researchers and plant breeders are focusing on the development of rice cultivars with enhanced functional properties. A number of functional rice grains including high-amylose cultivars with high dietary fiber content, golden rice that is high in beta-carotene, and colored rice with strong antioxidant activity have been developed and released in the market (Beyer et al. 2010; Min et al. 2012; Zhu et al. 2012). Sang Chul Lee ( ) E-mail: [email protected] Tel: +82 53 950-5713 / fax: +82 53 958-6880 The Korean Society of Crop Science
The prevalence of health problems associated with obesity and hyperlipidemia is rapidly increasing in epidemic proportions in both developed and developing countries (Sanchez et al. 2011). Chronic consumption of high fat diet, in combination with sedentary lifestyle, could alter the plasma triglyceride and cholesterol concentrations, leading to a higher risk f
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