MOLECULAR DOCKING STUDIES OF ISOLATED COMPOUNDS ANDROGRAPHOLIDE AND BETULIN FROM METHANOLIC LEAVES EXTRACT OF ANDROGRAPHIS ECHIOIDES AS ALPHA-AMYLASE AND ALPHA-GLUCOSIDASE ACTIVATORS
Keywords:Andrographolide, Betulin, Binding energy, Andrographis echioides, Leaves
Objective: The purpose of this study is to isolate and characterize the andrographolide and betulin from methanolic leaves extract of Andrographis echioides and also used to evaluate the alpha-amylase and alpha-glucosidase inhibitory activity of isolated compounds using in silico docking studies.
Methods: The isolation was done using column chromatography using gradient mobile phase. Structural elucidation was carried out on the basis of spectral analysis. In this view, andrographolide and betulin were prepared for the docking evaluation. In silico docking studies were carried out using a recent version of Auto Dock 4.2, which has the basic principle of Lamarckian genetic algorithm.
Results: On the basis of the spectral data, the compounds have been established as andrographolide and betulin are being reported from this plant for the first time. The result showed that the andrographolide showed a binding affinity for amylase: (-7.9 kcal/mol) and for glucosidase (-7.2 kcal/mol) while betulin showed (-8.6 kcal/mol) and (-5.2 kcal/mol), respectively.
Conclusion: Therefore, it is suggested that isolated compounds andrographolide and betulin contributed excellent α-amylase and α-glucosidase inhibitory activity because of its structural parameters. Thus, these isolated compounds can be effectively used as drugs for treating diabetes which is predicted on the basis of docking scores.
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