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Single and 14-Day Repeated Oral Toxicity Studies of 70% Ethanol Extract of Lindera Obtusiloba Blume Leaves

생강나무(Lindera obtusiloba Blume) 잎 70% 에탄올 추출물의 단회와 14일 반복투여 독성시험의 안전성 평가

  • Hong, Chung-Oui (Division of Food Bioscience & Technology, College of Life Sciences and Biotechnology, Korea University) ;
  • SeoMun, Young (Division of Food Bioscience & Technology, College of Life Sciences and Biotechnology, Korea University) ;
  • Koo, Yun-Chang (Division of Food Bioscience & Technology, College of Life Sciences and Biotechnology, Korea University) ;
  • Nam, Mi-Hyun (Division of Food Bioscience & Technology, College of Life Sciences and Biotechnology, Korea University) ;
  • Lee, Hyun-Ah (Division of Food Bioscience & Technology, College of Life Sciences and Biotechnology, Korea University) ;
  • Kim, Ji-Hoon (Division of Food Bioscience & Technology, College of Life Sciences and Biotechnology, Korea University) ;
  • Wang, Zeng (Division of Food Bioscience & Technology, College of Life Sciences and Biotechnology, Korea University) ;
  • Yang, Sung-Yong (Division of Food Bioscience & Technology, College of Life Sciences and Biotechnology, Korea University) ;
  • Lee, Sung-Hee (Division of Food Bioscience & Technology, College of Life Sciences and Biotechnology, Korea University) ;
  • No, Su-Hwan (Division of Food Bioscience & Technology, College of Life Sciences and Biotechnology, Korea University) ;
  • Lee, Kwang-Won (Division of Food Bioscience & Technology, College of Life Sciences and Biotechnology, Korea University)
  • 홍충의 (고려대학교 생명과학대학 식품공학부) ;
  • 서문영 (고려대학교 생명과학대학 식품공학부) ;
  • 구윤창 (고려대학교 생명과학대학 식품공학부) ;
  • 남미현 (고려대학교 생명과학대학 식품공학부) ;
  • 이현아 (고려대학교 생명과학대학 식품공학부) ;
  • 김지훈 (고려대학교 생명과학대학 식품공학부) ;
  • 왕증 (고려대학교 생명과학대학 식품공학부) ;
  • 양성용 (고려대학교 생명과학대학 식품공학부) ;
  • 이성희 (고려대학교 생명과학대학 식품공학부) ;
  • 노수환 (고려대학교 생명과학대학 식품공학부) ;
  • 이광원 (고려대학교 생명과학대학 식품공학부)
  • Published : 2009.10.31

Abstract

Lindera obtusiloba Blume (LO), which is widely distributed in Korea, Japan and China, has traditionally been used as a popular folk medicine for the treatment of fever, abdominal pain, bruise and extravation. The purpose of this study was to examine the toxicities of the single and 14-day repeated doses in Sprague-Dawley rats orally administrated with LO at doses of 0, 500, 1000, 2000 (14-day repeated toxicity test) and 5000 (single toxicity test) mg (dry weight)/kg of body weight/day. The results showed that there was no difference in body weight change, food intake, water consumption, or organ weight among different dose groups. Also we observed no death and abnormal clinical signs during the experimental period. Between the groups orally administered LO and the control group, there was no statistical significance in hematological test or serum biochemical values. There were no evidences of histopathological alteration as well as abnormal gross finding mediated by single and 14 days treatments with LO. These results suggest that no observed adverse effect level (NOAEL) of the oral application of LO was considered to be more than 2000 mg/kg in rats under the conditions employed in this study.

생강나무는 한국, 일본, 중국 등지에서 자생하며 열, 복통, 타박상, 출혈 등에 민간요법으로 사용되어온 식물이다. 이 논문의 목적은 오래전부터 민간요법으로 사용되어온 생강나무 잎의 안전성을 평가하고자 생강나무 잎 70% 에탄올 추출물을 암수 각 군당 5마리씩 5000(단회투여 독성시험), 0, 500, 1000, 2000(14일 반복투여 독성시험) mg/kg의 용량으로 단회경구투여와 14일 반복경구투여를 실시하여 15일간의 사망률, 일반증상, 체중변화, 조직병리, 혈액학적 및 혈액 생화학적 검사를 실시하였다. 시험기간 중 사망동물은 암수 모든 시험군에서 관찰되지 않았으며, 일반증상, 체중변화, 조직병리, 혈액학적 및 혈액생화학적 검사에서 투여와 관련된 변화는 관찰되지 않았다. 이상의 결과로 보아 생강나무의 단회투여 독성은 5000 mg/kg 용량을 상회하며, 14일 반복투여의 최고용량인 2000 mg/kg 용량에서도 아무런 독성이 나타나지 않는 것으로 보아 최대무독성량은 이 농도를 상회하는 것으로 판단된다. 이로써 생강나무는 안전한 소재로서 식재료 또는 건강기능식품의 원료로서도 사용이 가능하다고 볼 수 있다.

Keywords

References

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