Abstract
As a part of our continuing search for bioactive constituents from Brassicaceae family, three new bis-thioglycosides (1-3) were isolated from the 80% MeOH extract of Nasturtium officinale, together with 13 known compounds (4-16). The chemical structures of three new bis-thioglycosides (1-3) were elucidated using NMR techniques (1H and 13C NMR, 1H-1H COSY, HSQC, and HMBC), HRESIMS, and a chemical method. All the compounds were evaluated for their inhibitory effects on nitric oxide (NO) levels in lipopolysaccharide (LPS)-stimulated murine microglia BV-2 cells. Among the isolates, compound 5 exhibited a strong inhibitory effect on NO production, and compounds 4 and 15 showed moderate inhibitory activities, suggesting the neuroprotective and anti-neuroinflammatory effects of bis-thioglycosides from N. officinale.
Keywords:
Anti-neuroinflammation; Bis-thioglycosides; Brassicaceae; Microglia; Nasturtium officinale.
Copyright © 2019 Elsevier Inc. All rights reserved.
Publication types
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Research Support, Non-U.S. Gov't
MeSH terms
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Animals
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Anti-Inflammatory Agents, Non-Steroidal / chemistry
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Anti-Inflammatory Agents, Non-Steroidal / isolation & purification
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Anti-Inflammatory Agents, Non-Steroidal / pharmacology*
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Cell Line
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Cell Survival / drug effects
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Dose-Response Relationship, Drug
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Lipopolysaccharides / antagonists & inhibitors
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Lipopolysaccharides / pharmacology
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Mice
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Molecular Structure
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Nasturtium / chemistry*
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Neuroprotective Agents / chemistry
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Neuroprotective Agents / isolation & purification
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Neuroprotective Agents / pharmacology*
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Nitric Oxide / antagonists & inhibitors*
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Nitric Oxide / biosynthesis
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Plant Extracts / chemistry
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Plant Extracts / isolation & purification
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Plant Extracts / pharmacology*
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Structure-Activity Relationship
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Thioglycosides / chemistry
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Thioglycosides / isolation & purification
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Thioglycosides / pharmacology*
Substances
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Anti-Inflammatory Agents, Non-Steroidal
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Lipopolysaccharides
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Neuroprotective Agents
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Plant Extracts
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Thioglycosides
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Nitric Oxide