Journal of Nutrition and Health

The Korean Nutrition Society (한국영양학회)
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Effect of the Magnetized Water Supplementation on Lymphocyte DNA Damage in Mice Treated with Diethylnitrosamine

Diethyl Nitrosamine (DEN) 처리 실험동물에 있어 기간에 따른 자화육각수의 임파구 DNA 손상 개선효과

  • Lee, Hye-Jin (Department of Food & Nutrition, Daedeok Valley Campus, Hannam University) ;
  • Jo, Hye-Ryun (Department of Food & Nutrition, Daedeok Valley Campus, Hannam University) ;
  • Jeon, Eun-Jae (Department of Food & Nutrition, Daedeok Valley Campus, Hannam University) ;
  • Kang, Myung-Hee (Department of Food & Nutrition, Daedeok Valley Campus, Hannam University)
  • 이혜진 (한남대학교 대덕밸리캠퍼스 생명나노과학대학 식품영양학과) ;
  • 조혜련 (한남대학교 대덕밸리캠퍼스 생명나노과학대학 식품영양학과) ;
  • 전은재 (한남대학교 대덕밸리캠퍼스 생명나노과학대학 식품영양학과) ;
  • 강명희 (한남대학교 대덕밸리캠퍼스 생명나노과학대학 식품영양학과)
  • Received : 2010.10.06
  • Accepted : 2010.11.02
  • Published : 2010.12.31
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Abstract

Water gets magnetically charged when it is contacted with a magnet. Although magnetic water products have been promoted since the 1930's, they have received very little recognition due to questionable effectiveness. Diethylnitrosamine (DEN) is a widely occurring nitrosamine that is one of the most important environmental carcinogens primarily inducing tumors of liver. In this study, the effect of magnetized water supplementation on lymphocyte DNA damage in ICR mice treated with DEN was evaluated using the Comet assay. Mice were divided into 3 groups: control, DEN, and DEN + magnetized water group. Fifteen mice were maintained in each group for the entire experimental period of 6, 12 and 18 weeks. Five mice in each group were sacrificed at 6, 12, and 18th weeks, followed by the Comet assay using the blood obtained from heart puncture of the mice. The level of lymphocyte DNA damage reflected by tail moment and other DNA damage indices of tail DNA (%) or tail length of the magnetized water group were significantly decreased after the 6th, 12th and 18th weeks of supplementation compared with the positive control, the DEN group. The relative DNA damage of the magnetized water groups compared to the DEN control group after 6th, 12th, and 18th weeks of supplementation were 42.2%, 40.8%, and 32.9% for DNA in tail, 31.2%, 32.6%, and 21.3% for tail length, and 33.8%, 33.8%, and 24.6% for tail moment, respectively. This is the first report demonstrating that magnetized water may be involved in the lowering effect of the DNA damage in DEN-treated ICR mice. This result suggests that the magnetized water might have minimized the DNA damage by improving the antioxidant status of the mice. However, further studies are needed to characterize the condition of the magnetization and examine the long-term effect of the water product.

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