Journal
JOURNAL OF RECEPTORS AND SIGNAL TRANSDUCTION
Volume 41, Issue 2, Pages 159-169Publisher
TAYLOR & FRANCIS LTD
DOI: 10.1080/10799893.2020.1800734
Keywords
Bauhinia rufescens Lam; phytoconstituents; ADME; toxicity risk; molecular docking; alpha-glucosidase; alpha-amylase
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Funding
- King Saud University, Riyadh, Saudi Arabia [RSP-2020/119]
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This study focuses on the in silico assessment of antidiabetic phytoconstituents isolated from Bauhinia rufescens Lam, showing that eriodictyol has high potential as an inhibitor against alpha-amylase and rutin is potent against alpha-glucosidase. It is suggested that these compounds exert their antidiabetic effects by inhibiting the enzyme activities.
Introduction: Natural products play a pivotal role in innovative drug discovery by providing structural leads for the development of new therapeutic agents against various diseases.The present study aims to focus on thein silicoassessment of the therapeutic potential of antidiabetic phytoconstituents which were identified and isolated from the extracts ofBauhinia rufescensLam, a medicinal plant traditionally used for various pharmacotherapeutic purposes. Method: The physicochemical and pharmacokinetic parameters of the previously isolated thirty eight compounds were predicted using SwissADME web tool whereas OSIRIS Property Explorer was used for toxicity risk assessment and drug- likeliness. Twelve compounds were selected for docking on human alpha-glucosidase and alpha-amylaseenzymes using Autodock 4.0 software. Furthermore, the active extract wasin vivotested for the antidiabetic activity and then identified usingTLC bioautographic method. Results and Discussion: Eriodictyol was found to have the highest potential as an inhibitor against alpha-amylase with binding energy of -9.92 kcal/mol. Rutin was the most potent against alpha-glucosidase with binding energy of-9.15 kcal/mol. A considerable number of hydrogen bonds and hydrophobic interactions were computed between the compounds and the enzymes thereby making them energetically favorable and suggesting inhibition of these two enzymes as a plausible molecular mechanism for their antidiabetic effect. Conclusion: These two flavonoids could therefore be used as potential leads for structure- based design of new effective hypoglycemic agents.
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