인문학
사회과학
자연과학
공학
의약학
농수해양학
예술체육학
복합학
개인구독
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지원사업
학술연구/단체지원/교육 등 연구자 활동을 지속하도록 DBpia가 지원하고 있어요.
커뮤니티
연구자들이 자신의 연구와 전문성을 널리 알리고, 새로운 협력의 기회를 만들 수 있는 네트워킹 공간이에요.
초록·키워드
The chemopreventive effects of Magnolia ovobata water extract (MWE) and 70% ethanol extract (MEE) on the development of colonic aberrant crypt foci (ACF) induced by 1,2-dimethylhydrazine (DMH) were investigated. Six-week-old male F344 rats were divided to 7 experimental groups; 1) DMH alone, 2) DMH+0.3% MWE, 3) DMH+1% MWE, 4) DMH+3% MWE, 5) DMH+1% MEE, 6) 3% MWE alone and 7) normal control. Animals were subcutaneously injected with DMH (30 mg/kg) 4 times to induce colonic ACF during the initial 2 weeks, and fed with a basal containing various concentrations of test materials (MWE or MEE) for 8 weeks including the DMH-treatment period. The formation of ACF on colonic mucosa was observed after staining with methylene blue. There are no specific effects of MWE and MEE on body weight, feed and water consumptions, organ weights, histopathological observations, and hematological and blood chemistry analyses. Challenge with DMH alone induced mean number of 270.1 ACF/colon which was somewhat inhibited by MWE treatment, showing average numbers of 234.3-242.1 ACF/colon. In comparison, the ACF number was significantly suppressed to 216.5 by administration of 1% MEE. Therefore, these results suggest that Magnolia ovobata extracts, especially MEE, exert a chemopreventive effect on the DMH-induced colon cancer by inhibiting the early development of ACF.
본문·목차
인공지능 문자 인식 모델을 통해 추출된 텍스트로, 일부 오타나 오류가 포함될 수 있으나 지속적으로 개선 중입니다.
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최근 본 자료 전체보기
UCI(KEPA) : I410-ECN-0101-2009-510-014844062