Effect of Korean Mistletoe (Viscum album coloratum) Extract (KME) on the Extensions of Life span in Silkworm Moth, Bombyx Mori

누에 나방에 있어서 한국산 겨우살이(Viscum album coloratum) 추출물의 생명연장 효과

  • Jung, Hoe-Yune (School of Life and Food Sciences, Handong Global University) ;
  • Lee, An-Na (School of Life and Food Sciences, Handong Global University) ;
  • Kim, Sae-Jung (School of Life and Food Sciences, Handong Global University) ;
  • Park, Sung-Min (School of Life and Food Sciences, Handong Global University) ;
  • Song, Tae-Jun (School of Life and Food Sciences, Handong Global University) ;
  • Ko, Byung-Woong (School of Life and Food Sciences, Handong Global University) ;
  • Kim, Young-Hoon (School of Life and Food Sciences, Handong Global University) ;
  • An, Hyo-Sun (School of Life and Food Sciences, Handong Global University) ;
  • Yoo, Yung-Choon (Department of Microbiology, College of Medicine, Konyang University) ;
  • Min, Byeng-Ryel (Centro Educativo Ichthus) ;
  • Kim, Jong-Bae (School of Life and Food Sciences, Handong Global University)
  • 정회윤 (한동대학교 생명식품과학부 생명과학 연구실) ;
  • 이안나 (한동대학교 생명식품과학부 생명과학 연구실) ;
  • 김세중 (한동대학교 생명식품과학부 생명과학 연구실) ;
  • 박성민 (한동대학교 생명식품과학부 생명과학 연구실) ;
  • 송태준 (한동대학교 생명식품과학부 생명과학 연구실) ;
  • 고병웅 (한동대학교 생명식품과학부 생명과학 연구실) ;
  • 김영훈 (한동대학교 생명식품과학부 생명과학 연구실) ;
  • 안효선 (한동대학교 생명식품과학부 생명과학 연구실) ;
  • 유영춘 (건양대학교 의과대학 미생물학교실) ;
  • 민병렬 (익투스 교육센터) ;
  • 김종배 (한동대학교 생명식품과학부 생명과학 연구실)
  • Published : 2008.12.31

Abstract

Viscum album coloratum (Korean mistletoe; KM) is a semi-parasitic plant growing on various trees. This plant hasbeen shown to possess a variety of biological functions such as immunomodulation, apoptosis-induction and antitumor activity. However, there is no information about how the extract of KM affects life span of the host. In this study, in order to examine the effect of KM on the longevity of the host, we investigated whether a Korean mistletoe extract (KME) was able to extend the life length in an experimental model using the spring silkworm moth of Bombyx mori (Lepidoptera bombycidae). We established a model test for survival in which all of the male and female moths died within 18 days after the beginning of the experiment. Mean survival time of female moths was longer than that of male moths. Both male and female moths fed with KME containing diet (200 or 400 ${\mu}g$/head/day) showed significantly higher mean survival times than those of the control moths. Studying the effect of KME on prolongation of mean survival time showed that male moths were more susceptible than female moths. The moths fed with KME-containing diet showed a slight decrease in body weight. Interestingly, however, no difference in food intake was observed between moths fed with KME-containing diet and those with control diet. In analysis for mRNA increase in the SIRT2 gene, a member of the Sir2 gene family playing important roles in regulation of cell death and prolongation of life span, moths fed with KME-containing diet showed a significant increase in SIRT2 gene expression. These results suggest that KME has a potential to extend the life span in Bombyx mori, and its effect is partly associated with increase in SIRT2 gene expression.

Keywords

References

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