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  • Title: Antilipogenic and hypolipidemic effects of ethanol extracts from two variants of Artemisia princeps Pampanini in obese diabetic mice.
    Author: Jung UJ, Baek NI, Chung HG, Jeong TS, Lee KT, Lee MK, Choi MS.
    Journal: J Med Food; 2009 Dec; 12(6):1238-44. PubMed ID: 20041776.
    Abstract:
    The objective of this study was to determine the effects of the ethanol extract of two variants of Artemisia princeps Pampanini, Sajabalssuk (SB) and Sajuarissuk (SS), on lipid metabolism in type 2 diabetic animals. Male C57BL/KsJ-db/db mice were divided into control, SB ethanol extract (SBE) (0.171 g/100 g of diet), SS ethanol extract (SSE) (0.154 g/100 g of diet), and rosiglitazone (RG) (0.005 g/100 g of diet) groups. Supplementation of SBE and SSE significantly lowered the plasma levels of free fatty acid, triglyceride, and total cholesterol compared to the control group. The hepatic triglyceride and cholesterol contents and hepatic lipid droplets accumulation were also significantly lower in the SBE- and SSE-supplemented db/db mice than in the control or RG-supplemented db/db mice. Reductions of hepatic triglyceride and cholesterol contents in the SBE and SSE groups were related to the suppression of hepatic lipogenic enzyme activities, fatty acid synthesis (fatty acid synthase and malic enzyme), triglyceride synthesis (phosphatidate phosphohydrolase), and cholesterol synthesis (3-hydroxy-3-methylglutaryl-coenzyme A reductase) and esterification (acyl-coenzyme A:cholesterol acyltransferase). The RG supplement lowered plasma and hepatic lipid levels compared to the control group. However, RG significantly increased the white and brown adipose tissue weight and epididymal adipocyte size, whereas SBE and SSE lowered the brown adipose tissue weight and epididymal adipocyte size compared to the RG group. Together, these data suggest that supplementation of SBE and SSE partly improves lipid dysregulation and fatty liver in db/db mice by suppressing hepatic lipogenic enzyme activities.
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