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http://dx.doi.org/10.7740/kjcs.2016.61.3.184

Antioxidative and Protective Effects of Corn Silk (Zea mays L.) Extract on Human HaCaT Keratinocyte  

Kim, Hyun Young (Crop Foundation Division, National Institute of Crop Science (NICS), Rural Development Administration (RDA))
Seo, Woo Duck (Crop Foundation Division, National Institute of Crop Science (NICS), Rural Development Administration (RDA))
Seo, Kyung Hye (Department of Herbal Crop Research, NIHHS, RDA)
Lee, Mi-Ja (Crop Foundation Division, National Institute of Crop Science (NICS), Rural Development Administration (RDA))
Choi, Sik-Won (Crop Foundation Division, National Institute of Crop Science (NICS), Rural Development Administration (RDA))
Lee, Kwang-Sik (Crop Foundation Division, National Institute of Crop Science (NICS), Rural Development Administration (RDA))
Kim, Sun Lim (Crop Foundation Division, National Institute of Crop Science (NICS), Rural Development Administration (RDA))
Kang, Hyeon Jung (Crop Foundation Division, National Institute of Crop Science (NICS), Rural Development Administration (RDA))
Publication Information
KOREAN JOURNAL OF CROP SCIENCE / v.61, no.3, 2016 , pp. 184-190 More about this Journal
Abstract
We investigated the antioxidative and protective effects of corn silk (Zea mays L.) ethanol extracts on human HaCaT cells and erythrocytes. The NICS-2 fraction, extracted from corn silk, exhibited favorable 1,1-diphenyl-2-picrylhydrazyl (DPPH) and 2-azino-bis-(3-ethylbenzothiazoline-6-sulphonic acid (ABTS) radical scavenging activities with $IC_{50}$valuesof$13.3{\pm}0.3{\mu}g/mL$ and $14.2{\pm}0.1{\mu}g/mL$ when compared with those of ${\alpha}$-tocopherol, a positive control, with $IC_{50}=10.4{\pm}02.2$ and $22.2{\pm}3.6{\mu}g/mL$, respectively. In addition, we investigated skin protection effects of NICS extracts of corn silk in HaCaT keratinocytes. To investigate the pharmacological potential of NICS-1 and NICS-2 extracts of corn silk on UV-B-induced damage in HaCaT cells, we measured the activity of interleukin (IL) 1a. Our results showed that all the corn silk extracts inhibited the UV-B-induced activity of IL-1a. In particular, NICS-1 extracts of corn silk significantly suppressed IL-1a activity in a dose-dependent manner without inducing cytotoxicity. These results indicate that the ethanol extracts of corn silk (Zea mays L.) could function as natural cytoprotective agents and antioxidants in biological systems, particularly the skin exposed to UV radiation, by protecting cellular membrane against reactive oxygen species (ROS).
Keywords
antioxidant; corn silk; cytoprotective effect; HaCaT keratinocyte cells;
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Times Cited By KSCI : 3  (Citation Analysis)
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