Evaluation of α-Glucosidase Inhibitory Effect of 50% Ethanolic Standardized Extract of Orthosiphon stamineus Benth in Normal and Streptozotocin-Induced Diabetic Rats

In the present study, a 50% ethanolic extract of Orthosiphon stamineus was tested for its α-glucosidase inhibitory activity. In vivo assays of the extract (containing 1.02%, 3.76%, and 3.03% of 3′hydroxy-5,6,7,4′-tetramethoxyflavone, sinensetin, and eupatorin, resp.) showed that it possessed an inhi...

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Main Authors: Mohamed, Elsnoussi Ali, Ahmad, Mariam, Lee, Fung Ang, Asmawi, Mohd. Zaini, Mun, Fei Yam
Format: Article
Language:English
Published: Hindawi Publishing Corporation 2015
Subjects:
Online Access:http://eprints.usm.my/39039/1/Evaluation_of_%CE%B1-Glucosidase_Inhibitory_Effect_of_50%25_Ethanolic_Standardized.pdf
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author Mohamed, Elsnoussi Ali
Ahmad, Mariam
Lee, Fung Ang
Asmawi, Mohd. Zaini
Mun, Fei Yam
author_facet Mohamed, Elsnoussi Ali
Ahmad, Mariam
Lee, Fung Ang
Asmawi, Mohd. Zaini
Mun, Fei Yam
author_sort Mohamed, Elsnoussi Ali
collection USM
description In the present study, a 50% ethanolic extract of Orthosiphon stamineus was tested for its α-glucosidase inhibitory activity. In vivo assays of the extract (containing 1.02%, 3.76%, and 3.03% of 3′hydroxy-5,6,7,4′-tetramethoxyflavone, sinensetin, and eupatorin, resp.) showed that it possessed an inhibitory activity against α-glucosidase in normal rats loaded with starch and sucrose. The results showed that 1000 mg/kg of the 50% ethanolic extract of O. stamineus significantly () decreased the plasma glucose levels of the experimental animals in a manner resembling the effect of acarbose. In streptozotocin-induced diabetic rats, only the group treated with 1000 mg/kg of the extract showed significantly () lower plasma glucose levels after starch loading. Hence, α-glucosidase inhibition might be one of the mechanisms by which O. stamineus extract exerts its antidiabetic effect. Furthermore, our findings indicated that the 50% ethanolic extract of O. stamineus can be considered as a potential agent for the management of diabetes mellitus.
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spelling usm.eprints-390392018-02-20T02:30:45Z http://eprints.usm.my/39039/ Evaluation of α-Glucosidase Inhibitory Effect of 50% Ethanolic Standardized Extract of Orthosiphon stamineus Benth in Normal and Streptozotocin-Induced Diabetic Rats Mohamed, Elsnoussi Ali Ahmad, Mariam Lee, Fung Ang Asmawi, Mohd. Zaini Mun, Fei Yam RS1-441 Pharmacy and materia medica In the present study, a 50% ethanolic extract of Orthosiphon stamineus was tested for its α-glucosidase inhibitory activity. In vivo assays of the extract (containing 1.02%, 3.76%, and 3.03% of 3′hydroxy-5,6,7,4′-tetramethoxyflavone, sinensetin, and eupatorin, resp.) showed that it possessed an inhibitory activity against α-glucosidase in normal rats loaded with starch and sucrose. The results showed that 1000 mg/kg of the 50% ethanolic extract of O. stamineus significantly () decreased the plasma glucose levels of the experimental animals in a manner resembling the effect of acarbose. In streptozotocin-induced diabetic rats, only the group treated with 1000 mg/kg of the extract showed significantly () lower plasma glucose levels after starch loading. Hence, α-glucosidase inhibition might be one of the mechanisms by which O. stamineus extract exerts its antidiabetic effect. Furthermore, our findings indicated that the 50% ethanolic extract of O. stamineus can be considered as a potential agent for the management of diabetes mellitus. Hindawi Publishing Corporation 2015 Article PeerReviewed application/pdf en http://eprints.usm.my/39039/1/Evaluation_of_%CE%B1-Glucosidase_Inhibitory_Effect_of_50%25_Ethanolic_Standardized.pdf Mohamed, Elsnoussi Ali and Ahmad, Mariam and Lee, Fung Ang and Asmawi, Mohd. Zaini and Mun, Fei Yam (2015) Evaluation of α-Glucosidase Inhibitory Effect of 50% Ethanolic Standardized Extract of Orthosiphon stamineus Benth in Normal and Streptozotocin-Induced Diabetic Rats. Evidence-Based Complementary and Alternative Medicine, 2015 (754931). pp. 1-6. ISSN 1741-427X http://dx.doi.org/10.1155/2015/754931
spellingShingle RS1-441 Pharmacy and materia medica
Mohamed, Elsnoussi Ali
Ahmad, Mariam
Lee, Fung Ang
Asmawi, Mohd. Zaini
Mun, Fei Yam
Evaluation of α-Glucosidase Inhibitory Effect of 50% Ethanolic Standardized Extract of Orthosiphon stamineus Benth in Normal and Streptozotocin-Induced Diabetic Rats
title Evaluation of α-Glucosidase Inhibitory Effect of 50% Ethanolic Standardized Extract of Orthosiphon stamineus Benth in Normal and Streptozotocin-Induced Diabetic Rats
title_full Evaluation of α-Glucosidase Inhibitory Effect of 50% Ethanolic Standardized Extract of Orthosiphon stamineus Benth in Normal and Streptozotocin-Induced Diabetic Rats
title_fullStr Evaluation of α-Glucosidase Inhibitory Effect of 50% Ethanolic Standardized Extract of Orthosiphon stamineus Benth in Normal and Streptozotocin-Induced Diabetic Rats
title_full_unstemmed Evaluation of α-Glucosidase Inhibitory Effect of 50% Ethanolic Standardized Extract of Orthosiphon stamineus Benth in Normal and Streptozotocin-Induced Diabetic Rats
title_short Evaluation of α-Glucosidase Inhibitory Effect of 50% Ethanolic Standardized Extract of Orthosiphon stamineus Benth in Normal and Streptozotocin-Induced Diabetic Rats
title_sort evaluation of α glucosidase inhibitory effect of 50 ethanolic standardized extract of orthosiphon stamineus benth in normal and streptozotocin induced diabetic rats
topic RS1-441 Pharmacy and materia medica
url http://eprints.usm.my/39039/1/Evaluation_of_%CE%B1-Glucosidase_Inhibitory_Effect_of_50%25_Ethanolic_Standardized.pdf
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