alexa Neuroprotective Properties Of Compound Isolated From Dianthus Superbus L.
ISSN: 2161-0444

Medicinal Chemistry
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3rd International Conference on Medicinal Chemistry & Computer Aided Drug Designing
December 08-10, 2014 DoubleTree by Hilton Hotel San Francisco Airport, USA

Choong Je Ma, Bo-Ra Yun, Hye Jin Yang, Jin Bae Weon, Min Rye Eom and Youn Sik Jung
ScientificTracks Abstracts: Med Chem
DOI: 10.4172/2161-0444.S1.011
Dianthus superbus L. has been used in Chinese herbal medicine as a diuretic and anti-inflammatory agent. Triterpenoid saponins such as dianoside A to I are reported to be among the major bioactive compounds in D. superbus; compounds including dianthosaponins, dianthramide, flavonoid, coumarin, triterpenoid, pyran-type glycoside, and cyclic peptides have also been isolated from D. superbus. In this study, we isolated bioactive compound from D. superbus and evaluated neuroprotective activity against glutamate-induced cell death in the hippocampal neuronal HT22 cells. New compounds, chrysoeriol-5- methylether-7-O(2??, 6??-di-O-α-l-rhamnopyranosyl)-β-d-glucopyranoside (2) isolated by bioactivity-guided separation. Structure of compound was identified on the basis of 1H-NMR, 13C-NMR, and 2D NMR spectra, while neuroprotective properties were evaluated by performing the 3-(4, 5-dimethylthiazol-2-yl)-2, 5-diphenyltetrazolium bromide (MTT) assay. We also evaluated reactive oxygen species (ROS) generation, AChE inhibition, DPPH radical and H2O2 scavenging activity to elucidate possible mechanism of effect. Chrysoeriol-5-methylether-7-O(2??, 6??-di-O-α-l-rhamnopyranosyl)-β- d-glucopyranosideeffectively protected HT22 cells against glutamate toxicity. Additionally this compound significantly decreased the ROS level in the oxidative stress induced HT22 cells by glutamate and showed antioxidantive effect (DPPH radical and H2O2 scavenging effect) and acetylcholinesterase inhibition. In conclusion, chrysoeriol-5-methylether-7-O(2??, 6??-di-O-α-l-rhamnopyranosyl)-β-d-glucopyranoside isolated from D. superbus extract exhibited neuroprotective effect via antioxidant system, inhibition ROS. Further studies may need to elucidate the possible mechanism of effect ofchrysoeriol-5- methylether-7-O(2??, 6??-di-O-α-l-rhamnopyranosyl)-β-d-glucopyranoside. Overall results of study suggested that chrysoeriol- 5-methylether-7-O(2??, 6??-di-O-α-l-rhamnopyranosyl)-β-d-glucopyranoside has therapeutic potential for applications in neurodegenerative diseases.
Choong Je Ma has completed his PhD at the age of 32 years from Seoul National University and postdoctoral studies from University of Michigan. He is the professor of Department of Medical Biomaterials Engineering, College of Biomedical science, Kangwon National University, Korea. He has published more than 20 papers in reputed journals.
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