Tissue Concentration of Quercetin, Isoquercitrin and Hyperoside, and Lipid Profile Changes Following 8-Week Feeding of Angelica keiskei Powder in Rats

백서에서 신선초 8주 투여에 의한 quercetin, isoquercitrin 및 hyperoside의 체내농도 및 혈중 지질함량 변화

  • Choe, Kyu-Hong (Department of Food Science & Engineering, Kunsan National University) ;
  • Choe, Sun-Nam (Department of Food Science & Engineering, Kunsan National University) ;
  • Choo, Jong-Jae (Department of Food Science & Nutrition, Kunsan National University) ;
  • Lee, Jeong-Yeol (Faculty of Marine Life Science, Kunsan National University) ;
  • Kim, Jong-Yeon (Faculty of Marine Life Science, Kunsan National University) ;
  • Kim, Ju-Wan (Department of Aquatic Life Medicine, Kunsan National University) ;
  • Choi, Ji-Sung (Department of Aquatic Life Medicine, Kunsan National University) ;
  • Park, Ki-Seok (Department of Aquatic Life Medicine, Kunsan National University) ;
  • Park, Kwan-Ha (Department of Aquatic Life Medicine, Kunsan National University)
  • 최규홍 (군산대학교 해양과학대학 식품공학과) ;
  • 최선남 (군산대학교 해양과학대학 식품공학과) ;
  • 주종재 (군산대학교 자연과학대학 식품영양학과) ;
  • 이정열 (군산대학교 해양과학대학 해양생명과학부) ;
  • 김종연 (군산대학교 해양과학대학 해양생명과학부) ;
  • 김주완 (군산대학교 해양과학대학 수산생명의학과) ;
  • 최지성 (군산대학교 해양과학대학 수산생명의학과) ;
  • 박기석 (군산대학교 해양과학대학 수산생명의학과) ;
  • 박관하 (군산대학교 해양과학대학 수산생명의학과)
  • Published : 2007.12.01

Abstract

In this study, we examined the effects of Angelica keiskei (AK) in rats, in order to evaluate tissue quercetin concentrations and serum lipid profile changes. Dried AK powder was added to a regular chow at a 5% level, and fed for 8 weeks to male rats. AK significantly lowered serum total cholesterol, low-density lipoprotein cholesterol, and very low-density lipoprotein cholesterol levels, while it increased high-density lipoprotein cholesterol levels. However, AK did not influence serum triglyceride levels. Two antioxidant flavonoids present in AK, quercetin and its glycoside isoquercitrin, were detected in the serum and liver of the rat. However, another quercetin glycoside, hyperoside, was not detected in either the serum or liver despite its presence in the diet. These results indicate that AK seems to alter serum lipid concentrations, possibly through the body's absorption of certain quercetin glycosides.

신선초의 건조분말을 사료에 5%수준으로 혼합하여 백서에 8주간 투여하였을 때, 총 cholesterol, LDL-cholesterol, VLDL-cholesterol의 농도를 낮추며, HDL-cholesterol의 농도는 높이는 효과가 있음이 관찰되었다. 신선초에 존재한다고 알려진 항산화성 flavonoid들 중 quercetin과 그 배당체의 하나인 isoquercitrin이 백서의 체내에서 측정된 반면, 다른 quercetin 배당체인 hyperoside는 측정되지 않았다. 이 결과는 장기간 신선초투여에 의해 신선초에 함유된 quercetin 또는 그 배당체가 실제로 체내로 흡수되어 약리작용을 발휘할 수 있을 가능성을 제시해 준다.

Keywords

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