Photoprotective Effects of Oral L-Glutathione Supplementation on Epidermal Hyperplasia in UVB Irradiated Balb/C Mice
Abstract
Background and Objective: Extensive exposure of skin to ultraviolet radiation B (UVB) causes early inflammatory response and epidermal hyperplasia. L-Glutathione is an antioxidant and anti-inflammatory agent that can protect skin from photodamage. This study aimed to determine the protective effect of oral L-glutathione supplementation on UVB induced Balb/c. Materials and Methods: Eighteen female BALB/c mice were randomly divided into 3 groups: (1) Control group (n = 6), without UVB irradiation and L-glutathione administration; (2) UVB irradiated group (n = 6), irradiated with UVB dose of 250 mJ/cm2 for 3 minutes and (3) treatment group (n = 6), irradiated with UVB and treated with 0.02 mL of 100 mg kg–1 of L-glutathione by oral gavage. The treatment was given for 14 days and UVB irradiation was given on days 9, 11 and 13. Results: Mice irradiated with UVB and treated with L-Glutathione showed prominent reduction of skin scaling and erythema. Oral supplementation of L-glutathione significantly reduced the skinfold thickness (p<0.05) as compared to UVB-irradiated group. Mice irradiated with UVB and treated with L-Glutathione showed reduced leukocyte infiltration and epidermal hyperplasia. Conclusion: Oral supplementation of L-glutathione can influence the cutaneous and early inflammatory response to UVB irradiation. Therefore, L-glutathione has the potential to be developed as a photoprotective agent.
Keywords:
Antioxidant, epidermal hyperplasia, erythema, L-glutathione, photoprotection, skin scaling, ultraviolet radiation BArticle Metrics
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