The Journal of the Convergence on Culture Technology (문화기술의 융합)

The International Promotion Agency of Culture Technology (국제문화기술진흥원)
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The Chemopreventive Effect of Heat-treated Radish Complex Extracts on Rat Colonic Aberrant Crypt Foci Induced by 1,2-Dimethylhydrazine

1,2-Dimethylhydrazine에 의해 유발된 Colonic Aberrant Foci에 대한 초임계 열처리된 무복합추출물의 대장암 효과

  • 김현경 (서원대학교 식품공학과)
  • Received : 2019.09.21
  • Accepted : 2019.10.26
  • Published : 2019.11.30
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Abstract

The present study was designed to investigate the chemopreventive effects of supercritical heat radish extracts with anti-constipation acitivity in loperamide-treated rats, on 1,2-dimethylhydrazine(DMH)-induced aberrant crypt foci(ACF) in rat colonic mucosa. Supercritical heat radish extracts was administered in the drinking water(3.2 mg/ml) during the initiation (for 12 weeks) or postinitiation phase(for 9 weeks) of DMH-induced carcicogenesis. Supercritical heat radish extracts coupled with DMH for 12 weeks decreased significantly total number of aberrant crypts(pre-neoplastic lesions) and the number of ACF to 35% and 30%, respectively. The number of ACF with more than four aberrant crypts (crypt multiplicity) was significantly reduced in the colon of rats receiving Supercritical heat radish extracts for 12 weeks. In the group receiving Supercritical heat radish extracts after post-initiation for 9 weeks, only the number of ACF with ${\geq}4$ abberant crypts significantly decreased. Supercritical heat radish extracts, given alone for 12 weeks, did not induced the development of ACF. These results indicate that Supercritical heat radish extracts possess chemopreventive effects on chemically induced rat colon carcinogenesis.

본 연구는 로페라마이드로 처리된 흰쥐의 결장점막에 1,2-dimethylhydrazine (DMH)로 유도시 aberrant crypt foci(ACF)에 대한 길항 작용 효과를 갖는 초임계 열처리된 무 복합추출물의 화학적 암 예방 효과를 알아보고자 하였다. 초임계 열처리된 무 복합물추출물을 DMH유발 발암의 개시(12주 동안) 또는 개시 후 단계(9주 동안)에 식수(3.2 mg/ml)에 투여 하였다. 12주 동안 DMH와 함께 초임계 열처리된 무 복합추출물 투여군은 비정상적인 선와(전신경병변)의 총 수와 ACF의 수를 각각 35 %와 30 %로 크게 줄였다. 12주 동안 초임계 열처리된 무 복합추출물을 투여한 흰쥐의 결장에서 4가지 이상의 이상선와소(ACF)가 있는 ACF의 수가 현저히 감소하였다. 9주 동안 개시후 초임계 열처리된 무 복합추출물을 투여한 그룹에서, 4 이상의 이상선와소(ACF)의 수만이 현저히 감소하였다. 12주 동안 단독으로 투여한 초임계 열처리된 무 복합추출물은 ACF의 발생을 유발하지 않았다. 이러한 결과는 초임계 열처리된 무 복합추출물이 화학적으로 유도된 흰쥐의 결장 발암에 화학적 암예방 효과를 가지고 있음을 시사한다.

Keywords

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