@article {1904, title = {In Silico Analysis and ADMET Prediction of Flavonoid Compounds from Syzigium cumini var. album on α-Glucosidase Receptor for Searching Anti-Diabetic Drug Candidates}, journal = {Pharmacognosy Journal}, volume = {14}, year = {2022}, month = {December 2022}, pages = {736-743}, type = {Original Article}, chapter = {736}, abstract = {

Background: One of the causes of death is diabetes. Anti-diabetic drugs currently available do not work optimally because some have been reported to have side effect and resistance. Objective: This study aimed to flavonoid compounds from Syzygium cumini var. album with the greatest anti-diabetic activity and lower toxicity than acarbose. Materials and Methods: This research is an in silico study of nine flavonoid compounds from Syzygium cumini var. album, starting with PASS online was used to predict the activity spectrum of substances, drug-likeness prediction using DruLiTo, ADMET prediction (absorption, distribution, metabolism, excretion, and toxicity) using pkCSM online. Molecular docking was carried out by the AutoDock 4.2.6 program on α-glucosidase targeting. Visualization is done with the Discovery Studio Visualizer software. Results: From the data obtained, D-(+)-Catechin has a high affinity for α-glucosidase with a free energy of binding (ΔG) -5.94 kcal/mol and an inhibition constant (Ki) of 44270 nm. Conclusion: Based on the results of the study, it can be concluded that the flavonoid compounds from Syzygium cumini var. album has the potential as a promising anti-diabetic drug candidate, where the best candidate is D- (+)-Catechin. However, further studies of flavonoid compounds from Syzygium cumini var. album are needed.

}, keywords = {Flavonoid., Molecular docking, PASS, Pharmacokinetics, α-glucosidase}, doi = {10.5530/pj.2022.14.161}, author = {Yanu Andhiarto and Suciati and Ersanda Nurma Praditapuspa and Sukardiman} } @article {367, title = {Antioxidant Activity and Isolation of Xanthine Oxidase Inhibitor from Ruellia tuberosa L. Leaves}, journal = {Pharmacognosy Journal}, volume = {9}, year = {2017}, month = {July 2017}, pages = {607-610}, type = {Original Article}, chapter = {607}, abstract = {

Introduction: The leaves of Ruellia tuberosa L. have been known to demonstrate strong antioxidant and xanthine oxidase (XOD) inhibitory activities. The aim of this study was to isolate antioxidant and XOD inhibitor from the leaves of the plants. Methods: Isolation of antioxidant and XOD inhibitor were conducted using chromatography techniques. The structure of the isolated compound was elucidated by spectroscopic methods. Results: In this study, a flavonoid was isolated and characterized as methoxylated flavonoid based on the spectral data including UV, IR, GC-MS, and NMR. The compound demonstrated DPPH free radical scavenging activity with IC50 of 28.79 \μg/ml, and XOD inhibitory with IC50 of 0.67 \μg/mL. Conclusion: The isolated compound was determined as 5-hydroxy-3,7-dimethoxy-2-(4-((3S,4S,5S,6R)-4,5, 6-trihydroxy-2(hydroxymethoxy)-tetrahydro-2H-pyrane-3-iloxy) phenyl)-4H-chromen-4-on or camarosids. The isolated compound demonstrated strong DPPH free radical scavenging and XOD inhibitory activity.\ 

}, keywords = {Antioxidant, DPPH, Flavonoid., Ruellia Tuberosa, Xanthine Oxidase}, doi = {10.5530/pj.2017.5.96}, url = {/files/pj-9-5/10.5530pj.2017.5.96/index.html}, author = {Aktsar Roskiana Ahmad and Berna Elya and Abdul Mun{\textquoteright}im} }