Monechma ciliatum methanolic extract regulates low density lipoprotein receptor and 3-hydroxy-3- methylglutaryl coenzyme A reductase genes expression in HepG2 cells

  • Abdalbasit Adam Mariod
  • Ghanya AL-Naqeb
  • Maznah Ismail

Abstract

Monechma ciliatum methanolic extract (MCME) obtained from Monechma ciliatum seedcake showed high total phenolic compounds with high antioxidant activity. The regulatory effects of MCME at 10, 20 and 50 μg/ml on low density lipoprotein receptor (LDLR) and 3-hydroxy-3-methylglutaryl-coenzyme A reductase (HMGCR) were investigated in human HepG2 cell line using quantitative real-time polymerase chain reaction. LDLR mRNA level was increased significantly by 1.4, 2.6 and 4.3 fold in MCME treated cells at 10, 20 and 50, respectively, compared to untreated cells. Whereas, HMGCR mRNA level was decreased significantly by 38, 63 and 80% in MCME treated cells at 10, 20 and 50, respectively, compared to untreated cells. The effect of MCME was concentration dependent, and different doses showed significant differences in regulation of both LDLR and HMGCR genes. The present study showed that MCME effectively regulated the expression of LDLR and HMGCR genes influencing the cholesterol metabolism in HepG2 cells.

Keywords: Antioxidant activity, ß-carotene-linoleic acid assay, 1,1-diphenyl-2-picrylhydrazyl (DPPH), gene expression, low density lipoprotein receptor, 3-hydroxy-3-methylglutaryl-coenzyme A reductase, Monechma ciliatum.

African Journal of Biotechnology Vol. 9(36), pp. 5813-5819, 6 September, 2010

Author Biographies

Abdalbasit Adam Mariod
Laboratory of Molecular Biomedicine, Institute of Bioscience, University PutraMalaysia, 43400 Serdang, Selangor, Malaysia; Department of Food Science and Technology, Sudan University of Science and Technology, P. O Box 71, Khartoum North, Sudan
Ghanya AL-Naqeb
Laboratory of Molecular Biomedicine, Institute of Bioscience, University PutraMalaysia, 43400 Serdang, Selangor, Malaysia; Department of Food Science and Technology, Faculty of Agriculture, University of Sana’a, Sana’a, Yemen
Maznah Ismail
Laboratory of Molecular Biomedicine, Institute of Bioscience, University PutraMalaysia, 43400 Serdang, Selangor, Malaysia; Department of Nutrition and Dietetic, Faculty of Medicine and Health Sciences, University Putra Malaysia, 43400 Serdang, Selangor, Malaysia
Published
2013-08-20
Section
Articles

Journal Identifiers


eISSN: 1684-5315