The hypocholesterolemic effect of germinated brown rice involves the upregulation of the apolipoprotein A1 and low-density lipoprotein receptor genes

Germinated brown rice (GBR) is rich in bioactive compounds, which confer GBR with many functional properties. Evidence of its hypocholesterolemic effects is emerging, but the exact mechanisms of action and bioactive compounds involved have not been fully documented. Using type 2 diabetic rats, we st...

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Main Authors: Imam, Mustapha Umar, Ismail, Maznah, Omar, Abdul Rahman, Ithnin, Hairuszah
Format: Article
Language:English
Published: Hindawi Publishing Corporation 2013
Online Access:http://psasir.upm.edu.my/id/eprint/29777/1/The%20hypocholesterolemic%20effect%20of%20germinated%20brown%20rice%20involves%20the%20upregulation%20of%20the%20apolipoprotein%20A1%20and%20low.pdf
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author Imam, Mustapha Umar
Ismail, Maznah
Omar, Abdul Rahman
Ithnin, Hairuszah
author_facet Imam, Mustapha Umar
Ismail, Maznah
Omar, Abdul Rahman
Ithnin, Hairuszah
author_sort Imam, Mustapha Umar
collection UPM
description Germinated brown rice (GBR) is rich in bioactive compounds, which confer GBR with many functional properties. Evidence of its hypocholesterolemic effects is emerging, but the exact mechanisms of action and bioactive compounds involved have not been fully documented. Using type 2 diabetic rats, we studied the effects of white rice, GBR, and brown rice (BR) on lipid profile and on the regulation of selected genes involved in cholesterol metabolism. Our results showed that the upregulation of apolipoprotein A1 and low-density lipoprotein receptor genes was involved in the hypocholesterolemic effects of GBR. Additionally, in vitro studies using HEPG2 cells showed that acylated steryl glycoside, gamma amino butyric acid, and oryzanol and phenolic extracts of GBR contribute to the nutrigenomic regulation of these genes. Transcriptional and nontranscriptional mechanisms are likely involved in the overall hypocholesterolemic effects of GBR suggesting that it may have an impact on the prevention and/or management of hypercholesterolemia due to a wide variety of metabolic perturbations. However, there is need to conduct long-term clinical trials to determine the clinical relevance of the hypocholesterolemic effects of GBR determined through animal studies.
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spelling upm.eprints-297772015-09-22T03:38:01Z http://psasir.upm.edu.my/id/eprint/29777/ The hypocholesterolemic effect of germinated brown rice involves the upregulation of the apolipoprotein A1 and low-density lipoprotein receptor genes Imam, Mustapha Umar Ismail, Maznah Omar, Abdul Rahman Ithnin, Hairuszah Germinated brown rice (GBR) is rich in bioactive compounds, which confer GBR with many functional properties. Evidence of its hypocholesterolemic effects is emerging, but the exact mechanisms of action and bioactive compounds involved have not been fully documented. Using type 2 diabetic rats, we studied the effects of white rice, GBR, and brown rice (BR) on lipid profile and on the regulation of selected genes involved in cholesterol metabolism. Our results showed that the upregulation of apolipoprotein A1 and low-density lipoprotein receptor genes was involved in the hypocholesterolemic effects of GBR. Additionally, in vitro studies using HEPG2 cells showed that acylated steryl glycoside, gamma amino butyric acid, and oryzanol and phenolic extracts of GBR contribute to the nutrigenomic regulation of these genes. Transcriptional and nontranscriptional mechanisms are likely involved in the overall hypocholesterolemic effects of GBR suggesting that it may have an impact on the prevention and/or management of hypercholesterolemia due to a wide variety of metabolic perturbations. However, there is need to conduct long-term clinical trials to determine the clinical relevance of the hypocholesterolemic effects of GBR determined through animal studies. Hindawi Publishing Corporation 2013 Article PeerReviewed application/pdf en http://psasir.upm.edu.my/id/eprint/29777/1/The%20hypocholesterolemic%20effect%20of%20germinated%20brown%20rice%20involves%20the%20upregulation%20of%20the%20apolipoprotein%20A1%20and%20low.pdf Imam, Mustapha Umar and Ismail, Maznah and Omar, Abdul Rahman and Ithnin, Hairuszah (2013) The hypocholesterolemic effect of germinated brown rice involves the upregulation of the apolipoprotein A1 and low-density lipoprotein receptor genes. Journal of Diabetes Research, 2013. art. no. 134694. pp. 1-8. ISSN 2314-6745; ESSN: 2314-6753 10.1155/2013/134694
spellingShingle Imam, Mustapha Umar
Ismail, Maznah
Omar, Abdul Rahman
Ithnin, Hairuszah
The hypocholesterolemic effect of germinated brown rice involves the upregulation of the apolipoprotein A1 and low-density lipoprotein receptor genes
title The hypocholesterolemic effect of germinated brown rice involves the upregulation of the apolipoprotein A1 and low-density lipoprotein receptor genes
title_full The hypocholesterolemic effect of germinated brown rice involves the upregulation of the apolipoprotein A1 and low-density lipoprotein receptor genes
title_fullStr The hypocholesterolemic effect of germinated brown rice involves the upregulation of the apolipoprotein A1 and low-density lipoprotein receptor genes
title_full_unstemmed The hypocholesterolemic effect of germinated brown rice involves the upregulation of the apolipoprotein A1 and low-density lipoprotein receptor genes
title_short The hypocholesterolemic effect of germinated brown rice involves the upregulation of the apolipoprotein A1 and low-density lipoprotein receptor genes
title_sort hypocholesterolemic effect of germinated brown rice involves the upregulation of the apolipoprotein a1 and low density lipoprotein receptor genes
url http://psasir.upm.edu.my/id/eprint/29777/1/The%20hypocholesterolemic%20effect%20of%20germinated%20brown%20rice%20involves%20the%20upregulation%20of%20the%20apolipoprotein%20A1%20and%20low.pdf
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