Related Experiment Videos
Screening for new antioxidative compounds for topical administration using skin lipid model systems
Hagen Trommer1, Reinhard H H Neubert
1Institute of Pharmaceutics and Biopharmaceutics, School of Pharmacy, Martin-Luther-University Halle-Wittenberg, Wolfgang-Langenbeck-Strasse 4, D-06120 Halle (Saale), Germany. trommer@pharmazie.uni-halle.de
Summary
This study screened 47 substances for UV protection. Several drugs, plant extracts, and polysaccharides demonstrated antioxidant properties, effectively reducing lipid peroxidation and offering potential for skin protection formulations.
Area of Science:
- Dermatology
- Cosmetic Science
- Biochemistry
Background:
- Human skin faces constant exposure to UV radiation and oxygen, leading to oxidative stress.
- Lipid peroxidation is a key indicator of UV-induced cellular damage.
Purpose of the Study:
- To investigate the effects of 47 diverse substances on UV irradiation-induced lipid peroxidation.
- To identify potential protective agents for topical application against UV damage.
Main Methods:
- Utilized in vitro screening models with varying lipid system complexity.
- Employed UV irradiation to induce lipid peroxidation and quantified secondary products using the thiobarbituric acid assay.
Main Results:
- Identified amantadine, bufexamac, tryptophan, melatonin, propranolol, and hyaluronic acid as antioxidants.
- Buckwheat, St. John's Wort, melissa, and sage extracts showed significant lipid peroxidation reduction.
- Resistant starch novelose 330 and locust bean gum exhibited UV-induced lipid protection.
Conclusions:
- Certain drugs, plant extracts, and polysaccharides can protect against UV-induced lipid peroxidation.
- These findings suggest potential applications in cosmetic formulations and sunscreens for skin protection.
- Further in vivo studies are recommended to correlate in vitro results with clinical efficacy.