Abstract
• BH extracts showed anti-obesity effects by downregulating PPARγ expressions. • BH extracts improved anti-diabetic complications via AMPK upregulations. • BH extracts regulated lipid metabolism-related gene expressions. • BH extracts is a potential ingredient for anti-obese medicinal food in the future. The purpose of the current study was to observe the anti-diabetic and anti-obesity effects of blue honeysuckle (BH; Lonicera caerulea L.) extracts on obese diabetic mice. BH extracts dose-dependently and significantly inhibited abnormal endocrine pancreas histopathological changes. Moreover, favorable anti-diabetic effects and non-alcoholic fatty liver disease, nephropathy, and hyperlipidemia refinement activities in BH extracts were shown to be dose dependent. Particularly, BH extract 200 mg/kg showed favorable modulatory activities on PPAR γ and AMPK in hepatic and adipose tissues as comparable to those of positive control, conjugated linoleic acid (CLA) administration. Results from the current study suggest that BH extracts could be a potential functional ingredient for anti-obesity and anti-diabetic effects through the inhibition of lipogenesis and hepatic glucose production by regulating lipid metabolism-related mRNA expressions.
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