Journal of the Korean Society of Food Science and Nutrition (한국식품영양과학회지)

The Korean Society of Food Science and Nutrition (한국식품영양과학회)
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Evaluation of In Vivo Safety of Inhibitory Compounds from Cheongmoknosang Mulberry Leaves against Helicobacter pylori

청목노상 뽕잎으로부터 분리한 Helicobacter pylori 저해물질에 대한 In Vivo 안전성 평가

  • Kim, Byong-Oh (Dept. of Applied Biology, Kyungpook National University) ;
  • Cho, Young-Je (School of Food Science & Biotechnology, Food & Bio-Industry Research Institute, Kyungpook National University)
  • 김병오 (경북대학교 생물응용) ;
  • 조영제 (경북대학교 식품공학부, 식품생물산업연구소)
  • Received : 2011.07.29
  • Accepted : 2011.08.19
  • Published : 2011.10.31
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Abstract

Biological compounds (caffeic acid, rosemarinic acid, and chlorogenic acid) from mulberry leaf extracts were administered to mice in order to confirm their stability. All male and female mice survived upon a 4,000 mg/g dose in an acute toxicity test, and they also survived after injection of 2,000 mg/kg for 13 weeks repeatedly. Therefore, the level of toxicity was not high. In a comparison of the control and test groups, there were no significant differences upon naked eye inspection, and the weights of stomachs infected by Helicobacter pylori were not significantly different. Regarding the effects on immune cells, NO of macrophages decreased more than that of control when medicine was administered. The spleens of the female mice group proliferated slightly in LPS and Con A within 48 hr, whereas the other test group showed a similar level and the cell toxicity of natural killing cells decreased. Therefore, we concluded that caffeic acid, rosemarinic acid, and chlorogenic acid from mulberry leaf extracts are not harmful for the treatment of infected patients the development as a healthy functional food.

뽕잎에서 분리한 유효성분의 혼합물에 대한 안전성을 확인하기 위하여 경구 투여하여 시험한 결과, 투여량 4000 mg/kg에서 암수 mouse 모두가 생존하여 급성독성은 없을 것으로 판단하였으며, 13주 반복 독성 시험에서도 투여량 2000 mg/kg에서 암수 mouse 모두가 생존하여 약물의 독성에 의한 문제는 없을 것으로 판단되었다. 육안으로는 대조군과 비교 시 이상이 확인되지 않았으며 부검 후 H. pylori 의 감염에 영향을 받을 수 있는 위의 무게 역시 대조군과의 차이를 확인할 수 없었다. 면역세포에 대한 영향은 약물 투여 시 매체대조군에 비해 대식세포의 독성 물질인 NO의 생성이 감소하는 것을 확인하였다. 또한 암컷군에서 48시간에서만이 LPS와 Con A에 의해 비장세포가 약간 증식되었을 뿐 다른 실험군에서는 대조구와 비슷한 수치를 나타내었으며, 자연살해세포의 세포독성은 감소되었다. 뽕잎에서 분리한 유용 성분인 caffeic acid, rosemarinic acid와 chlorogenic acid가 H. pylori의 감염환자의 치료용 또는 예방의 목적으로 임상적으로 사용할 경우 아무런 독성이 없을 것으로 판단되어 뽕잎을 건강기능성 식품으로 개발하는데 있어서 안전성 문제는 없는 것으로 판단되었다.

Keywords

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