Document Detail


Glucose lowering efficacy of the aqueous stem bark extract of Trema orientalis (Linn) Blume in normal and streptozotocin diabetic rats.
MedLine Citation:
PMID:  16599266     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
The glucose-lowering efficacy of the aqueous stem bark extract of Trema orientalis (Ulmaceae) was evaluated both in normal and streptozotocin-induced diabetic rats. In normoglycemic rats, the single oral administration of the aqueous extract of T. orientalis failed to reduce blood glucose levels while in STZ-diabetic rats, the plant extract (38-300 mg/kg) exhibited significant hypoglycaemic activity with a maximum effect of 29.67%, 5 hours after administration of the 75 mg/kg dose when compared with the diabetic untreated group. Glibenclamide was not able to lower blood glucose in STZ-diabetic rats, while it significantly lowered the blood sugar in normoglycemic rats. The hypoglycaemic property of T. orientalis was also assessed by an oral glucose tolerance test (OGTT) in STZ-diabetic rats. The aqueous extract of T. orientalis and the reference drug, glibenclamide, (10 mg/kg) produced significant blood glucose lowering effects in the diabetic rats when compared to the diabetic controls. One week after repeated administration of T. orientalis extract, blood glucose levels were significantly decreased (p < 0.05) and still remained low after 2 weeks (p < 0.01). The results indicated that T. orientalis stem bark extract significantly reduces blood glucose in STZ-induced diabetic rats by a mechanism different from that of sulfonylurea agents. The present investigation provides pharmacological evidence that the use of this plant extract in traditional medicine for cardiovascular disease can be of benefit particulary in diabetic patients.
Authors:
T Dimo; F T Ngueguim; P Kamtchouing; E Dongo; P V Tan
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Publication Detail:
Type:  Journal Article; Research Support, Non-U.S. Gov't    
Journal Detail:
Title:  Die Pharmazie     Volume:  61     ISSN:  0031-7144     ISO Abbreviation:  Pharmazie     Publication Date:  2006 Mar 
Date Detail:
Created Date:  2006-04-07     Completed Date:  2006-05-17     Revised Date:  2007-01-29    
Medline Journal Info:
Nlm Unique ID:  9800766     Medline TA:  Pharmazie     Country:  Germany    
Other Details:
Languages:  eng     Pagination:  233-6     Citation Subset:  IM    
Affiliation:
Department of Animal Biology and Physiology, Faculty of Science, P.O. Box 812 University of Yaounde I, Cameroon.
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MeSH Terms
Descriptor/Qualifier:
Animals
Blood Glucose / metabolism
Body Weight / drug effects
Diabetes Mellitus, Experimental / blood,  drug therapy*
Diabetes Mellitus, Type 1 / blood,  chemically induced,  drug therapy
Drinking / drug effects
Eating / drug effects
Glucose Tolerance Test
Hypoglycemic Agents / pharmacology*,  therapeutic use
Male
Plant Bark / chemistry
Plant Extracts / pharmacology
Rats
Rats, Wistar
Trema / chemistry*
Chemical
Reg. No./Substance:
0/Blood Glucose; 0/Hypoglycemic Agents; 0/Plant Extracts

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