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Biosci Biotechnol Biochem. 2008 Dec;72(12):3225-31. Epub 2008 Dec 7.

Investigation of the anti-obesity action of licorice flavonoid oil in diet-induced obese rats.

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1
Department of Bioresource Science, Graduate School of Agricultural Science, Kobe University, Kobe, Japan.

Abstract

Licorice flavonoid oil (LFO), which contains hydrophobic flavonoids from Glycyrrhiza glabra LINNE, is a new ingredient for functional foods. In this study, we investigated the anti-obesity action of LFO in diet-induced obese rats. The addition of 2% LFO in a high-fat diet significantly decreased the weight of abdominal adipose tissue and the levels of hepatic and plasma triglycerides. We found that the enzymatic activities of acetyl-CoA carboxylase and fatty acid synthase, the rate-limiting enzymes in the fatty acid synthetic pathway, were significantly decreased by LFO, whereas the enzymatic activity of acyl-CoA dehydrogenase, the rate-limiting enzyme in the fatty acid oxidative pathway, was significantly increased. All our findings suggest that the anti-obesity action of LFO is controlled by regulation of the rate-limiting enzymes in the fatty acid synthetic and oxidative pathways in the liver.

PMID:
19060415
DOI:
10.1271/bbb.80469
[Indexed for MEDLINE]
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