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Natural phenolics in the prevention of UV-induced skin damage. A review
Alena Svobodová1, Jitka Psotová, Daniela Walterová
1Institute of Medical Chemistry and Biochemistry, Faculty of Medicine, Palacký University, nevotínská 3, 775 15 Olomouc, Czech Republic. alf.svoboda@seznam.cz
Abstract:
UV skin exposure induces extensive generation of reactive oxygen species (ROS). These can react with DNA, proteins, fatty acids and saccharides causing oxidative damage. Such injuries result in a number of harmful effects: disturbed cell metabolism, morphological and ultrastructural changes, attack on the regulation pathways and, alterations in the differentiation, proliferation and apoptosis of skin cells. These processes can lead to photoaging and skin cancer development. One approach to protecting human skin against the harmful effects of UV irradiation is to use antioxidants as photoprotectives. In recent years naturally occurring herbal compounds such as phenolic acids, flavonoids, and high molecular weight polyphenols have gained considerable attention as beneficial protective agents. In this review, we strive to summarize the findings of studies performed to date, regarding the photoprotective effects of plant phenolics on the skin damage induced by UV radiation.
Insights
Plant phenolics, including phenolic acids and flavonoids, offer natural protection against UV-induced skin damage by combating reactive oxygen species (ROS). These antioxidants help prevent photoaging and skin cancer development.
Area of Science:
- Dermatology
- Photobiology
- Natural Product Chemistry
Background:
- UV radiation exposure generates reactive oxygen species (ROS), leading to oxidative stress and cellular damage in the skin.
- This damage contributes to photoaging and increases the risk of skin cancer development.
- Antioxidants are explored as photoprotective agents against UV-induced skin injuries.
Purpose of the Study:
- To review and summarize research on the photoprotective effects of plant phenolics against UV radiation-induced skin damage.
- To highlight the potential of natural herbal compounds as skin protectants.
Main Methods:
- Literature review of studies investigating the efficacy of plant phenolics in mitigating UV-induced skin damage.
- Analysis of research focusing on phenolic acids, flavonoids, and polyphenols from herbal sources.
Main Results:
- Plant phenolics demonstrate significant photoprotective capabilities against UV radiation.
- These compounds counteract oxidative damage caused by ROS, protecting cellular components like DNA and proteins.
- Studies indicate benefits in preventing alterations in skin cell metabolism, proliferation, and apoptosis.
Conclusions:
- Naturally occurring plant phenolics are promising agents for photoprotection.
- Their antioxidant properties offer a viable strategy to mitigate UV-induced skin damage, photoaging, and cancer risk.
- Further research into these herbal compounds can lead to novel skincare applications.
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