Title |
Inhibition of melanogenesis by Gaillardia aristata flower extract
|
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Published in |
BMC Complementary Medicine and Therapies, December 2015
|
DOI | 10.1186/s12906-015-0972-1 |
Pubmed ID | |
Authors |
Minkyung Kim, Seoungwoo Shin, Jung-A Lee, Deokhoon Park, Jongsung Lee, Eunsun Jung |
Abstract |
The purpose of the study was to determine the anti-melanogenic and anti-oxidant properties of Gaillardia aristata flower extract (GAE). Melanogenesis inhibition by GAE was investigated in cultivated cells and in a human skin model. In cultivated cells, the melanogenesis regulatory effect of GAE was evaluated using melanin content, intracellular tyrosinase activity and anti-oxidant characteristics. In addition, the expression of melanogenesis-related proteins was determined by western blot assay and real-time PCR. GAE reduced the amount of melanin in B16F10 and normal human epidermal melanocyte cells and suppressed intracellular tyrosinase activity in a dose-dependent pattern. Also, GAE significantly decreased the expression of melanogenesis-related proteins (microphthalmia associated transcription factor, tyrosinase, tyrosinase-related protein-1, and dopachrome tautomerase). Real-time PCR results revealed a down-regulation of the mRNAs of these proteins. GAE possessed anti-oxidant characteristics as free radical-scavenging capacity and reducing power. In the three-dimensional human skin model, GAE applied to hyperpigmented skin significantly increased the degree of skin lightening within 2 weeks of treatment. The safety of GAE on human skin was confirmed. These results indicate the potential of GAE for use in suppressing skin pigmentation. We proposed GAE as a new candidate of anti-melanogenic and antioxidant agents that could be used for cosmetic skin care products. |
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Geographical breakdown
Country | Count | As % |
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Unknown | 32 | 100% |
Demographic breakdown
Readers by professional status | Count | As % |
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Researcher | 10 | 31% |
Student > Doctoral Student | 5 | 16% |
Student > Master | 4 | 13% |
Student > Ph. D. Student | 2 | 6% |
Student > Bachelor | 2 | 6% |
Other | 2 | 6% |
Unknown | 7 | 22% |
Readers by discipline | Count | As % |
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Biochemistry, Genetics and Molecular Biology | 4 | 13% |
Pharmacology, Toxicology and Pharmaceutical Science | 2 | 6% |
Agricultural and Biological Sciences | 2 | 6% |
Chemistry | 2 | 6% |
Other | 2 | 6% |
Unknown | 13 | 41% |