Protective effect of a topical sunscreen formulation fortified with melatonin against UV-induced photodermatitis: an immunomodulatory effect via NF-κB suppression
2019
AbstractObjective: Melatonin and pumpkin seed oil, along with US FDA approved UV filters were incorporated into a formulation for enhancement of UV protection by exerting an antioxidant effect. The objective of this study was to assess the protective effect of this formulation against ultraviolet (UV) radiation-induced photo dermatitis in rats, which is an established model to study the aetiopathogenic mechanisms in psoriasis vulgaris, as the former exhibits the same features to those of clinical psoriasis vulgaris in humans.Materials and methods: The animals were segregated into five groups (6/group) and all received their respective formulations dermally prior to chronic UV irradiation for 28 days. The test, placebo, and standard groups; received the test, placebo, and standard formulations respectively; whereas the positive control group received only UV radiation. A normal control group was also maintained. Disease and treatment status were analyzed using various techniques by euthanizing the rats aft...
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