Pattaneeya PrangthipReuthaithip SurasiangRin CharoensiriVijittra LeardkamolkarnSurat KomindrUruwan YamborisutApichart VanavichitRatchanee KongkachuichaiMahidol UniversityKasetsart University2018-10-192018-10-192013-01-01Journal of Functional Foods. Vol.5, No.1 (2013), 195-203175646462-s2.0-84873260270https://repository.li.mahidol.ac.th/handle/20.500.14594/31120Dark 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.Mahidol UniversityAgricultural and Biological SciencesMedicineNursingArticleSCOPUS10.1016/j.jff.2012.10.005