Document Detail


3beta-taraxerol of Mangifera indica, a PI3K dependent dual activator of glucose transport and glycogen synthesis in 3T3-L1 adipocytes.
MedLine Citation:
PMID:  20026188     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
BACKGROUND: The present study focuses on identifying and developing an anti-diabetic molecule from plant sources that would effectively combat insulin resistance through proper channeling of glucose metabolism involving glucose transport and storage. METHODS: Insulin-stimulated glucose uptake formed the basis for isolation of a bioactive molecule through column chromatography followed by its characterization using NMR and mass spectroscopic analysis. Mechanism of glucose transport and storage was evaluated based on the expression profiling of signaling molecules involved in the process. RESULTS: The study reports (i) the isolation of a bioactive compound 3beta-taraxerol from the ethyl acetate extract (EAE) of the leaves of Mangifera indica (ii) the bioactive compound exhibited insulin-stimulated glucose uptake through translocation and activation of the glucose transporter (GLUT4) in an IRTK and PI3K dependent fashion. (iii) the fate of glucose following insulin-stimulated glucose uptake was ascertained through glycogen synthesis assay that involved the activation of PKB and suppression of GSK3beta. GENERAL SIGNIFICANCE: This study demonstrates the dual activity of 3beta-taraxerol and the ethyl acetate extract of Mangifera indica as a glucose transport activator and stimulator of glycogen synthesis. 3beta-taraxerol can be validated as a potent candidate for managing the hyperglycemic state.
Authors:
Kadapakkam Nandabalan Sangeetha; Sundaresan Sujatha; Velusamy Shanmuganathan Muthusamy; Singaravel Anand; Nirmal Nithya; Devadasan Velmurugan; Arun Balakrishnan; Baddireddi Subhadra Lakshmi
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Publication Detail:
Type:  Journal Article     Date:  2009-12-21
Journal Detail:
Title:  Biochimica et biophysica acta     Volume:  1800     ISSN:  0006-3002     ISO Abbreviation:  Biochim. Biophys. Acta     Publication Date:  2010 Mar 
Date Detail:
Created Date:  2010-02-22     Completed Date:  2010-05-03     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  0217513     Medline TA:  Biochim Biophys Acta     Country:  Netherlands    
Other Details:
Languages:  eng     Pagination:  359-66     Citation Subset:  IM    
Copyright Information:
Copyright (c) 2009 Elsevier B.V. All rights reserved.
Affiliation:
Centre for Biotechnology, Anna University, India.
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MeSH Terms
Descriptor/Qualifier:
1-Phosphatidylinositol 3-Kinase / drug effects,  metabolism*
3T3 Cells / drug effects,  metabolism*
Adipocytes / cytology,  drug effects,  enzymology*
Animals
Blood Glucose / metabolism
Cell Survival / drug effects
Deoxyglucose / metabolism*
Diabetes Mellitus, Type 2 / epidemiology,  physiopathology
Enzyme Activation
Glucose / metabolism*
Glycogen / biosynthesis*
Humans
Insulin Resistance
Mice
Oleanolic Acid / analogs & derivatives*,  isolation & purification,  pharmacology
Plant Extracts / pharmacology*
Chemical
Reg. No./Substance:
0/Blood Glucose; 0/Mangifera indica extract; 0/Plant Extracts; 127-22-0/taraxerol; 154-17-6/Deoxyglucose; 50-99-7/Glucose; 508-02-1/Oleanolic Acid; 9005-79-2/Glycogen; EC 2.7.1.137/1-Phosphatidylinositol 3-Kinase

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine


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