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Phototoxic potential of silymarin and its bioactive components

Paper ID Volume ID Publish Year Pages File Format Full-Text
29522 44416 2016 8 PDF Available
Title
Phototoxic potential of silymarin and its bioactive components
Abstract

•Silymarin, silybin, isosilybin, silychristin and silydianin were non-phototoxic.•2,3-Dehydrosilybin, a minor silymarin component, showed phototoxic potential.•Primary skin cells and HaCaT could be used for evaluating phototoxicity.•HaCaT were assessed as the ideal model system.

Silymarin, a standardized extract of the seeds of the milk thistle (Silybum marianum) and its major component, silybin, is now used as an active component in a broad spectrum of dietary supplements, cosmetics and dermatological preparations. However, despite its use in skin products, there are no published data to exclude its phototoxic potential. The primary purpose of this study was to examine the phototoxicity of silymarin and its flavonolignans, silybin, isosilybin, silychristin, silydianin and 2,3-dehydrosilybin by validated 3T3 NRU assay. Further, we compared the validated biological system Balc/c 3T3 cell line with other cell models, particularly normal human dermal fibroblasts (NHDF), normal human epidermal keratinocytes (NHEK) and the human keratinocyte cell line (HaCaT). The results showed that silymarin and the flavonolignans silybin, isosilybin, silychristin and silydianin had no phototoxicity towards any of the cells used. In contrast, 2,3-dehydrosilybin was identified as a compound with phototoxic potential. Further study is needed to evaluate the health risks associated with 2,3-dehydrosilybin use in skin preparations.

Keywords
Flavonolignans; Phototoxicity; 3T3 NRU; Balb/c 3T3; HaCaT; Primary skin cells
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Publisher
Database: Elsevier - ScienceDirect
Journal: Journal of Photochemistry and Photobiology B: Biology - Volume 156, March 2016, Pages 61–68
Authors
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Subjects
Physical Sciences and Engineering Chemical Engineering Bioengineering
Get Full-Text Now
Don't Miss Today's Special Offer
Price was $35.95
You save - $31
Price after discount Only $4.95
100% Money Back Guarantee
Full-text PDF Download
Online Support
Any Questions? feel free to contact us