Research Article

Dandelion Extracts Protect Human Skin Fibroblasts from UVB Damage and Cellular Senescence

Figure 5

Dandelion leaf and flower extracts stimulate GSH generation and the expression of GR. (a) Dandelion leaf and flower extracts protected UVB irradiation-decreased GSH level. Dandelion extracts (300 μg/mL) were added 30 minutes before UVB or promptly after UVB radiation, and GSH was measured after additional 24-hour culture. # versus control; * versus UVB only. . (b) Dandelion leaf and flower extracts stimulated GR mRNA expression. Dandelion extracts (300 μg/mL) were added 30 minutes before UVB, and GR mRNA was measured after additional 24-hour culture with real-time PCR. # versus control; * versus UVB only. .
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