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The effect of three Korean traditional medicines on the growth rate of cultured human keratinocytes
Chung, Seok Hee,Hiroto Terashi,Lenore M. Rhodes,Moon, Namdoo,William R. Dunham,Cynthia L. Marcelo 경희대학교 동서의학연구소 2001 東西醫學硏究所 論文集 Vol.2001 No.-
The effect of three different Korean Traditional Medicines (KTM) was studied on several functional parameters of adult human cells in culture. The cells were non-transformed strains of normal, skin epidermal cells (keratinocytes) from adult humans. Aqueous extracts of the herbal medicines were tested using two types of cell strains: one type was essential fatty acid deficient (EFAD) cells which grow rapidly in medium that was low in calcium and had no essential fatty acids; the second type was a cell strain grown in medium supplemented with essential fatty acid (EFA-supplemented). These cells had much slower, in vivo skin growth rates, and the fatty acid composition resembled that measured in epidermal biopsy tissue. The KTMs chosen for this study were tae-gang-hual-tang (for treating osteoarthritis), hual-ak-tang (for pain relief) and sip-zeon-tae-bo-tang (for fortifying immune systems). Because high proliferation rates usually correlate with skin inflammation and because many of the chemotactic agents mediating inflammatory response are modified fatty acids, this study focused on cell growth rate and membrane fatty acid composition as signals for the effects of the herbal medicines. By monitoring growth rate, these experiments measured both a stimulatory and a regulatory effect on the growth of keratinocytes. Some toxicity was seen at the highest doses of the KTMs. These effects were modeled mathematically, and the results showed varying effects on growth rate depending on dose and herbal recipe. The fitting parameters were discussed as they relate to biological function. The experimental design was also discussed and alternatives were suggested. ⓒ 2001 Elsevier Science lreland Ltd. All rights reserved.