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Pattaneeya Prangthip Reuthaithip Surasiang Rin Charoensiri Vijittra Leardkamolkarn Surat Komindr Uruwan Yamborisut Apichart Vanavichit Ratchanee Kongkachuichai 《Journal of Functional Foods》2013,5(1):195-203
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 ? 16.65 mM) 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 12 weeks, 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. 相似文献
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Juthathip Posuwan Pattaneeya Prangthip Vijittra Leardkamolkarn Uruwan Yamborisut Ruethaithip Surasiang Rin Charoensiri Ratchanee Kongkachuichai 《Food chemistry》2013
Diabetes is a serious health problem. Searching for alternative natural antioxidants is considered important strategy to manage diabetes. This study evaluated the effect of Riceberry bran oil (RBBO) supplementation on oxidative stress and organ histology in streptozotocin-induced diabetic rats fed a high fat (HF) diet. Adult male Sprague-Dawley rats with hyperglycemia were divided into four groups: DM group fed a HF diet alone; DMRL group fed a HF diet and 5% RBBO; DMRM group fed a HF diet and 7.5% RBBO; DMRH group fed a HF diet and 15% RBBO. Normal rats were used as normal control and were divided into NC and NR group fed a normal diet containing either 5% corn oil or 5% RBBO, respectively. After 12 weeks, RBBO significantly decreased malondialdehyde and restored superoxide dismutase, catalase, glutathione peroxidase, coenzyme Q10 and ORAC levels in diabetic rats. RBBO additionally improved the regenerative changes of the pancreas, kidneys, heart and liver. These findings indicate that pigmented RBBO could provide beneficial effect on diabetes by decreasing oxidative stress and recovering organ histology. 相似文献
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