Journal of Ginseng Research

The Korean Society of Ginseng (고려인삼학회)
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Panax ginseng Improves Senile Testicular Function in Rats

  • Hwang, Seock-Yeon (Department of Clinical Pathology, Daejeon University) ;
  • Sohn, Sang-Hyun (Department of Life Science, College of Biomedical and Health Science, Konkuk University) ;
  • Wee, Jae-Joon (Korea Ginseng Corporation) ;
  • Yang, Jin-Bae (Department of Clinical Pathology, Daejeon University) ;
  • Kyung, Jong-Soo (Korea Ginseng Corporation) ;
  • Kwak, Yi-Seong (Korea Ginseng Corporation) ;
  • Kim, Sung-Won (Department of Life Science, College of Biomedical and Health Science, Konkuk University) ;
  • Kim, Si-Kwan (Department of Life Science, College of Biomedical and Health Science, Konkuk University)
  • Received : 2010.07.30
  • Accepted : 2010.11.29
  • Published : 2010.12.29
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Abstract

We reported previously that the administration of Korean red ginseng water extract (KRG-WE) protected the guinea pig testis against damage induced by 2,3,7,8-tetrachlorodibenzo-p-dioxin (a potent endocrine disruptor). We also found that crude saponin from ginseng was the active ingredient responsible for this protection. Here, we examined the biological role of KRG-WE in an animal model of age-induced dysfunction of spermatogenesis. Twenty-four male Sprague-Dawley (six 2-month-old and eighteen 12-month-old) rats were used. The young and old control groups received only vehicle. The ginseng saponin (GS)- and KRG-WE-treated groups received GS (40 mg/kg body weight/day) and KRG-WE (200 mg/kg body weight/day), respectively, for 4 months. The number of cells, Sertoli cell index, Johnsen's score, and sex hormone levels decreased significantly with age. However, the administration of KRG-WE and GS markedly improved the number of germ cells, seminiferous tubular size, and Johnsen's score in the old rats. Ginseng produced a distinct testicular histological improvement in old rats. KRG-WE and GS elevated testosterone levels, while attenuating the aberrant increase in follicle stimulating hormone and luteinizing hormone levels. Sperm kinematics evaluated by a computer-assisted sperm analyzer demonstrated improvement in the percentage of motile sperm, progressive sperm motility, and curvilinear velocity associated with sperm quality, supporting the beneficial role of red ginseng in senile spermatogenesis. Overall, the total water extract had a more potent effect than the corresponding saponin fraction. In conclusion, Korean red ginseng rejuvenated age-induced testicular dysfunction. Additionally, the total water extract was more potent than the corresponding saponin fraction.

Keywords

References

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