KMID : 1161420190220010022
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Journal of Medicinal Food 2019 Volume.22 No. 1 p.22 ~ p.28
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Adlay Bran Oil Suppresses Hepatic Gluconeogenesis and Attenuates Hyperlipidemia in Type 2 Diabetes Rats
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Tseng Yi-Han
Chang Ching-Wen Chiang Wenchang Hsieh Shu-Chen
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Abstract
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This study aimed to examine the antidiabetic effects of various concentrations of adlay bran oil (ABO) in high fat diet and streptozotocin-induced diabetic rats. Dietary supplementation with 10% ABO for 4 weeks effectively decreased the blood triacylglycerol, glucose, and total cholesterol levels in diabetic rats, although body weight remained the same. The mRNA and protein expressions of hepatic glucose transporter 2 (GLUT-2) and phosphoenolpyruvate carboxykinase (PEPCK) were increased and that of glucokinase (GCK) were decreased in diabetic rats. However, 10% ABO treatment reduced the mRNA and protein expressions of GLUT-2 and PEPCK and elevated the expression of hepatic GCK in diabetic rats. Thus, ABO enhanced hepatic glucose metabolism to decrease blood glucose in diabetic rats. In addition, 10% ABO supplementation increased the expression of phosphorylated protein kinase B (Akt) relative to the total Akt levels in the muscles of diabetic rats, indicating enhanced insulin sensitivity. The results indicate that ABO displays a potential for improving hyperlipidemia and hyperglycemia in diabetes by enhancing insulin sensitivity and hepatic glucose metabolism.
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KEYWORD
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adlay bran oil, blood glucose, diabetes
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