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Radek Gazak

Researcher at Academy of Sciences of the Czech Republic

Publications -  19
Citations -  1106

Radek Gazak is an academic researcher from Academy of Sciences of the Czech Republic. The author has contributed to research in topics: Silibinin & Lincomycin. The author has an hindex of 12, co-authored 19 publications receiving 1026 citations.

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Silybin and silymarin--new and emerging applications in medicine.

TL;DR: This review critically surveys the literature published mainly within this millennium on the new and emerging applications of silybin (pure, chemically defined substance) and silymarin (flavonoid complex from Silybum marianum - milk thistle seeds).
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Mechanism of the Antioxidant Action of Silybin and 2,3-Dehydrosilybin Flavonolignans: A Joint Experimental and Theoretical Study

TL;DR: It is established the importance of the 3-OH and 20-OH groups as H donors, in the presence of the 2,3 double bond and the catechol moiety in the E-ring, respectively, and secondary mechanisms could become more important as the active sites for H atom transfer (HAT) mechanism are much less effective (high BDEs).
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Effects of silymarin flavonolignans and synthetic silybin derivatives on estrogen and aryl hydrocarbon receptor activation

TL;DR: The data suggest that estrogenicity of some silymarin constituents should be taken in account as their potential side effect when considered as chemopreventive compounds, and stress the need to study biological activities of purified or synthesized diastereomers of silybin derivatives.
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Molecular mechanisms of silybin and 2,3-dehydrosilybin antiradical activity--role of individual hydroxyl groups.

TL;DR: The pivotal role of the 3-OH group in the radical-scavenging activity of 2 was confirmed through the formation of another type of dimer from its selectively methylated derivative.
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Antioxidant and antiviral activities of silybin fatty acid conjugates

TL;DR: Two selective acylation methods for sily bin esterification with long-chain fatty acids were developed, yielding a series of silybin 7-O- and 23-O -acyl-derivatives of varying acyl chain lengths that were tested for their antioxidant and anti-influenza virus activities.