Journal of Ginseng Research

The Korean Society of Ginseng (고려인삼학회)
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Study on life span extension efficacy by Korean Red Ginseng

  • Lee, Joon-Hee (Department of Physical Therapy, Daebul University) ;
  • Choi, Sun-Hye (Ginsentology Research Laboratory and Department of Physiology, College of Veterinary Medicine, Konkuk University) ;
  • Nah, Seung-Yeol (Ginsentology Research Laboratory and Department of Physiology, College of Veterinary Medicine, Konkuk University)
  • Published : 2007.12.31
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Abstract

The backbone structure of ginsenosides, active ingredients of Panax ginseng, is similar with that of sterol, especially cholesterol. Caenorhabditis elegans (c. elegans) is one of free living nematodes and is well-established animal model for biochemical and genetic studies. C. elegans cannot synthesize de novo cholesterol, although cholesterol is essential requirement for its growth and development. In the present study, we investigated the effects of Korean red ginseng total extract (KRGE), ginseng total saponins (GTS) on life span of C. elegans in cholesterol-deprived and -fed medium. Cholesterol deprivation caused damages on life span of worms throughout F1 to F3 generations. KRGE or GTS supplement to cholesterol-deprived medium restored the life span of worms as much as cholesterol alone-fed medium. In study to identify which ginsenosides are responsible for life span restoring effects of KRGE, we found that ginsenoside Rc supplement not only restored life span of worms grown in cholesterol-deprived medium but also prolonged life span of worms grown in cholesterol-fed medium. These results show a possibility that ginsenosides could be utilized by C. elegans as a sterol substitute and further indicate that ginsenoside Rc is the effective component of Korean red ginseng that prolongs the life span of C. elegans.

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