Document Detail


Saponins from the traditional medicinal plant Momordica charantia stimulate insulin secretion in vitro.
MedLine Citation:
PMID:  22133295     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
The antidiabetic activity of Momordica charantia (L.), Cucurbitaceae, a widely-used treatment for diabetes in a number of traditional medicine systems, was investigated in vitro. Antidiabetic activity has been reported for certain saponins isolated from M. charantia. In this study insulin secretion was measured in MIN6 β-cells incubated with an ethanol extract, saponin-rich fraction, and five purified saponins and cucurbitane triterpenoids from M. charantia, 3β,7β,25-trihydroxycucurbita-5,23(E)-dien-19-al (1), momordicine I (2), momordicine II (3), 3-hydroxycucurbita-5,24-dien-19-al-7,23-di-O-β-glucopyranoside (4), and kuguaglycoside G (5). Treatments were compared to incubation with high glucose (27 mM) and the insulin secretagogue, glipizide (50 μM). At 125 μg/ml, an LC-ToF-MS characterized saponin-rich fraction stimulated insulin secretion significantly more than the DMSO vehicle, p=0.02. At concentrations 10 and 25 μg/ml, compounds 3 and 5 also significantly stimulated insulin secretion as compared to the vehicle, p≤0.007, and p=0.002, respectively. This is the first report of a saponin-rich fraction, and isolated compounds from M. charantia, stimulating insulin secretion in an in vitro, static incubation assay.
Authors:
Amy C Keller; Jun Ma; Adam Kavalier; Kan He; Anne-Marie B Brillantes; Edward J Kennelly
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Publication Detail:
Type:  Journal Article; Research Support, N.I.H., Extramural; Research Support, Non-U.S. Gov't     Date:  2011-11-30
Journal Detail:
Title:  Phytomedicine : international journal of phytotherapy and phytopharmacology     Volume:  19     ISSN:  1618-095X     ISO Abbreviation:  Phytomedicine     Publication Date:  2011 Dec 
Date Detail:
Created Date:  2011-12-05     Completed Date:  2012-06-05     Revised Date:  2013-04-01    
Medline Journal Info:
Nlm Unique ID:  9438794     Medline TA:  Phytomedicine     Country:  Germany    
Other Details:
Languages:  eng     Pagination:  32-7     Citation Subset:  IM    
Copyright Information:
Copyright © 2011 Elsevier GmbH. All rights reserved.
Affiliation:
Lehman College and the Graduate Center, City University of New York, Bronx, NY 10468, USA.
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MeSH Terms
Descriptor/Qualifier:
Animals
Blood Glucose / drug effects
Cell Line
Fruit / chemistry
Hypoglycemic Agents / pharmacology
Insulin / biosynthesis,  secretion*
Insulin-Secreting Cells / drug effects*,  secretion*
Mice
Momordica charantia / chemistry*
Phytotherapy
Plant Extracts / pharmacology
Plants, Medicinal / chemistry
Saponins / isolation & purification,  pharmacology*
Seeds / chemistry
Grant Support
ID/Acronym/Agency:
F31 AT004548/AT/NCCAM NIH HHS; F31-AT004548/AT/NCCAM NIH HHS
Chemical
Reg. No./Substance:
0/Blood Glucose; 0/Hypoglycemic Agents; 0/Insulin; 0/Plant Extracts; 0/Saponins
Comments/Corrections

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