title: Ameliorating effects of fermented rice bran extract on oxidative stress induced by high glucose and hydrogen peroxide in 3T3-L1 adipocytes.
abstract: In this study, we investigated whether fermented rice bran (FRB) can ameliorate the oxidative stress induced by high glucose and hydrogen peroxide (H(2)O(2)) in 3T3-L1 adipocytes by analyzing reactive oxygen species (ROS), oil red O staining, as well as the expression of mRNAs related to glucose homeostasis and adipogenesis. It was first confirmed that rice bran fermented by Issatchenkia orientalis MFST1 extract increased free phenolic content compared to non-fermented rice bran. The FRB extract strongly inhibited ROS generation and upregulated the expression of PPAR-γ and adiponectin. Moreover, FRB upregulated GLUT4 related to glucose transportation and insulin sensitivity. Taken together, FRB extract ameliorated oxidative stress-induced insulin resistance by neutralizing free radicals and upregulating adiponectin in adipocytes. Our results provide information toward understanding the beneficial effects of FRB on oxidative stress.
authors: Department of Food Science and Technology, College of Natural Resources, Yeungnam University, Gyeongsan, Republic of Korea.
authors: Dongyeop
authors: D
authors: Kim
authors: Gi Dong
authors: GD
authors: Han
mesh_terms: D041721:3T3-L1 Cells; D017667:Adipocytes / Q000187:drug effects* / Q000378:metabolism; D052242:Adiponectin / Q000378:metabolism; D000818:Animals; D001692:Biological Transport / Q000187:drug effects; D005285:Fermentation; D005947:Glucose / Q000009:adverse effects; D051275:Glucose Transporter Type 4 / Q000378:metabolism; D006861:Hydrogen Peroxide; D007328:Insulin / Q000378:metabolism; D007333:Insulin Resistance; D051379:Mice; D012275:Oryza; D018384:Oxidative Stress / Q000187:drug effects*; D047495:PPAR gamma / Q000378:metabolism; D010636:Phenols / Q000494:pharmacology / Q000627:therapeutic use*; D008517:Phytotherapy; D010936:Plant Extracts / Q000494:pharmacology / Q000627:therapeutic use*; D017382:Reactive Oxygen Species / Q000378:metabolism; D012639:Seeds; D015854:Up-Regulation
chemical_list: D052242:Adiponectin; D051275:Glucose Transporter Type 4; D007328:Insulin; D047495:PPAR gamma; D010636:Phenols; D010936:Plant Extracts; D017382:Reactive Oxygen Species; D006861:Hydrogen Peroxide; D005947:Glucose