Abstract
Hypolipidemic effects of Agastache rugosa essential oil (AREO) were investigated. Gas chromatographymass spectrometry (GC-MS) analysis showed that the major compound in AREO is limonene (47%, w/w). AREO (1 mg/mL) markedly reduced low density lipoprotein (LDL) oxidation (-93%). After 3-week feeding of AREO, plasma cholesterol (-28%) and triglyceride levels (-26%) were significantly decreased in C57BL/6J mice. Mouse hepatic transcriptome profiling with oligonucleotide microarray revealed that AREO altered the expression of 2,524 genes. Notably, significant reductions in sterol regulatory element binding factor (SREBF)-1 and SREBF- 2 mRNA levels were detected. Protein expression of HMG-CoA reductase, a major target for SREBP-2, was reduced in HepG2 cells (-36%) and in mouse liver (-35 %). AREO also significantly increased mRNA (+40%) and protein (+83%) expression of the LDL receptor in HepG2 cells and mouse liver, respectively. Our findings suggest that AREO may prevent atherosclerosis via the inhibition of LDL oxidation, down-regulation of SREBF-2 and HMG-CoA reductase expression, and up-regulation of LDL receptor expression.
Original language | English |
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Pages (from-to) | 219-227 |
Number of pages | 9 |
Journal | Food Science and Biotechnology |
Volume | 19 |
Issue number | 1 |
DOIs | |
Publication status | Published - 2010 Feb |
Bibliographical note
Funding Information:Acknowledgments This work was supported by a National Research Foundation of Korea Grant funded by the Korean Government (KRF-2006-311-F00131) and by a grant (Code #20080401034049-0090100) from the BioGreen 21 Program, Rural Development Administration, Republic of Korea.
Keywords
- Agastache rugosa (Korean mint)
- Cholesterol
- Herbal essential oil
- Hypocholesterolemic effect
ASJC Scopus subject areas
- Biotechnology
- Food Science
- Applied Microbiology and Biotechnology