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Title 

Effect of the rhizomes of Astilbe chinensis on UVB-induced inflammatory response

Authors 

MK NaByung Sun MinRen Bo AnWY JinY H KimK S SongY H SeongKH Bae

Publisher 

Wiley-Blackwell

Issue Date 

2004

Citation 

Phytotherapy Research, vol. 18, no. 12, pp. 1000-1004

Keywords 

astilbe chinensisintracellular ROSsaxifragaceaeUVB-induced NO productionUVB-induced PGE2 productionastilbe chinensis extractdose responserhizomeanti-inflammatory agents, non-steroidaldose-response relationship, drug

Abstract 

The EtOH extract from the rhizomes of Astilbe chinensis (Saxifragaceae) exhibited potent antioxidant activity in preliminary screening. Since oxidative stress is known to be involved in the inflammatory response after UVB exposure, the ability of an A. chinensis extract to inhibit UVB-induced PGE2 and NO production was examined. UVB irradiation (35 mJ/cm2) increased PGE2 and NO production, which were significantly decreased by pre-administration of the extract in a dose-dependent manner. The A. chinensis extract also preserved the cellular antioxidant capacity after UVB irradiation, which was determined by the GSH content. UVB irradiation enhanced the formation of ROS in the keratinocytes, which was determined using DCFH-DA, a redox sensitive dye. The levels of intracellular ROS were also significantly reduced by pre-treatment of the extract in a dose-dependent manner measured 9 h after UVB irradiation. The results suggest that the A. chinensis extract may have a protective effect on the UVB-injured keratinocytes by inhibiting PGE2 and NO production, possibly through the inhibition of intracellular ROS accumulation.

ISSN 

0951-418X

Link 

http://dx.doi.org/10.1002/ptr.1599

Appears in Collections

1. Journal Articles > Journal Articles

Registered Date

2017-04-19


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