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Title: Amelioration of hyperglycemia, hyperlipidemia, oxidative stress and inflammation in steptozotocin-induced diabetic rats fed a high fat diet by riceberry supplement
Authors: Pattaneeya Prangthip
Reuthaithip Surasiang
Rin Charoensiri
Vijittra Leardkamolkarn
Surat Komindr
Uruwan Yamborisut
Apichart Vanavichit
Ratchanee Kongkachuichai
Mahidol University
Kasetsart University
Keywords: Agricultural and Biological Sciences;Medicine;Nursing
Issue Date: 1-Jan-2013
Citation: Journal of Functional Foods. Vol.5, No.1 (2013), 195-203
Abstract: Dark purple riceberry bran contains a higher dietary fiber and antioxidant compounds than unpigmented rice bran. Riceberry supplement (RB) was used to evaluate the effects on biochemical parameters, skeletal muscle glucose transporter 4 (GLUT4), oxidative stress and inflammation in a streptozotocin (STZ)-induced diabetes rat. To elucidate the effects were due to dietary fiber supplementation and/or bioactive components, equivalent amounts of dietary fiber present in RB were also fed to STZ-induced diabetic rats. Diabetes Sprague-Dawley rats (non-FBG≥16.65mM) were randomly divided into five groups: DM fed a high fat (HF) diet, DM-RB1 fed 5% RB, DM-RB2 fed 41% RB, DM-F1 fed 0.6% fiber and DM-F2 fed 5% fiber. After 12weeks, significant improvement of BG, insulin, HbA1C, IPGTT and GLUT4 levels were observed in DM-RB1 and DM-RB2 groups. Hyperlipidemia was significantly improved in DM-RB2 and DM-F2 groups. Oxidative stress (TBARS), antioxidant enzymes (SOD, CAT, and GPx), antioxidant capacity (ORAC), pro-inflammation cytokine (TNF-α and IL-6) were improved in DM-RB1 and DM-RB2 groups. Improvement of pancreas and spleen histology was found in DM-RB1 and DM-RB2 groups. These indicate the potential of RB to improve hyperglycemia and hyperlipidemia conditions as well as alleviate oxidative stress and inflammation. © 2012 Elsevier Ltd.
ISSN: 17564646
Appears in Collections:Scopus 2011-2015

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