Sulfated Metabolites of Flavonolignans and 2,3-Dehydroflavonolignans: Preparation and Properties
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61989592%3A15110%2F18%3A73588643" target="_blank" >RIV/61989592:15110/18:73588643 - isvavai.cz</a>
Result on the web
<a href="https://www.mdpi.com/1422-0067/19/8/2349" target="_blank" >https://www.mdpi.com/1422-0067/19/8/2349</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.3390/ijms19082349" target="_blank" >10.3390/ijms19082349</a>
Alternative languages
Result language
angličtina
Original language name
Sulfated Metabolites of Flavonolignans and 2,3-Dehydroflavonolignans: Preparation and Properties
Original language description
Silymarin, an extract from milk thistle (Silybum marianum) fruits, is consumed in various food supplements. The metabolism of silymarin flavonolignans in mammals is complex, the exact structure of their metabolites still remains partly unclear and standards are not commercially available. This work is focused on the preparation of sulfated metabolites of silymarin flavonolignans. Sulfated flavonolignans were prepared using aryl sulfotransferase from Desulfitobacterium hafniense and p-nitrophenyl sulfate as a sulfate donor and characterized by high-resolution mass spectrometry (HRMS) and nuclear magnetic resonance (NMR). Their 1,1-diphenyl-2-picrylhydrazyl (DPPH), 2,2′-azinobis-(3-ethylbenzothiazoline-6-sulfonic acid) (ABTS), and N,N-dimethyl-p-phenylenediamine (DMPD) radical scavenging; ferric (FRAP) and Folin–Ciocalteu reagent (FCR) reducing activity; anti-lipoperoxidant potential; and effect on the nuclear erythroid 2-related factor 2 (Nrf2) signaling pathway were examined. Pure silybin A 20-O-sulfate, silybin B 20-O-sulfate, 2,3-dehydrosilybin-20-O sulfate, 2,3-dehydrosilybin-7,20-di-Osulfate, silychristin-19-O-sulfate, 2,3- dehydrosilychristin-19-O-sulfate, and silydianin-19-O-sulfate were prepared and fully characterized. Sulfated 2,3-dehydroderivatives were more active in FCR and FRAP assays than the parent compounds, and remaining sulfates were less active chemoprotectants. The sulfated flavonolignans obtained can be now used as authentic standards for in vivo metabolic experiments and for further research on their biological activity.
Czech name
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Czech description
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Classification
Type
J<sub>ost</sub> - Miscellaneous article in a specialist periodical
CEP classification
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OECD FORD branch
30502 - Other medical science
Result continuities
Project
Result was created during the realization of more than one project. More information in the Projects tab.
Continuities
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)
Others
Publication year
2018
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Name of the periodical
International Journal of Molecular Sciences
ISSN
1661-6596
e-ISSN
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Volume of the periodical
19
Issue of the periodical within the volume
8
Country of publishing house
US - UNITED STATES
Number of pages
16
Pages from-to
1-17
UT code for WoS article
000442869800201
EID of the result in the Scopus database
2-s2.0-85052111649