evaluation of the potential of brazilian propolis against uv-induced oxidative stress
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2011
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Abstract
This study investigated the potential use of topically and orally administered propolis extracts to prevent UV irradiation-induced oxidative stress in skin. The results illustrated that green propolis extract (GPE) contained greater amounts of polyphenols, coumaric acid, drupanin, baccharin and artepillin C than did brown propolis extract (BPE). GPE showed higher antioxidant activity than BPE when the IC50 (concentration that caused 50% inhibition) values were compared. Interesting, the oral treatment of hairless mice demonstrated a recovery of 30.0% for GPE and 22.8% for BPE with respect to UV irradiation-induced GSH depletion. The topical pretreatment of animals with both propolis extract solutions recovered around 14.0% of the depleted GSH. However, the employed treatments did not inhibit the increase of cutaneous proteinase secretion/activity caused by irradiation. These findings indicate that despite differences in composition and antioxidant properties, GPE and BPE both successfully prevent UV-induced GSH depletion in vivo and are both promising antioxidant systems against oxidative stress in skin. Based on these findings, complementary studies should be performed to enhance our understanding of the protective effects of propolis extracts in skin.
| Reference Key |
fonseca2011evidence-basedevaluation
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| Authors | ;Yris Maria Fonseca;Franciane Marquele-Oliveira;Fabiana T. M. C. Vicentini;Niege Araçari J. C. Furtado;João Paulo B. Sousa;Yara M. Lucisano-Valim;Maria José Vieira Fonseca |
| Journal | ACS applied materials & interfaces |
| Year | 2011 |
| DOI |
10.1155/2011/863917
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| URL | |
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